VWR SCIENTIFIC PRODUCTS CORP
SC 14D1, 1999-06-14
PROFESSIONAL & COMMERCIAL EQUIPMENT & SUPPLIES
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<PAGE>   1

- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549
                           -------------------------

                                 SCHEDULE 14D-1
              TENDER OFFER STATEMENT PURSUANT TO SECTION 14(d)(1)
                     OF THE SECURITIES EXCHANGE ACT OF 1934

                      VWR SCIENTIFIC PRODUCTS CORPORATION
                           (NAME OF SUBJECT COMPANY)

                              EM SUBSIDIARY, INC.
                         EM LABORATORIES, INCORPORATED
                         MERCK KGaA, DARMSTADT, GERMANY
                                   (BIDDERS)

                    COMMON STOCK, PAR VALUE $1.00 PER SHARE
                         (TITLE OF CLASS OF SECURITIES)

                                   918435108
                     (CUSIP NUMBER OF CLASS OF SECURITIES)

                                STEPHEN J. KUNST
                          VICE PRESIDENT AND SECRETARY
                          EM SUBSIDIARY, INCORPORATED
                           C/O EM LABORATORIES, INC.
                                7 SKYLINE DRIVE
                           HAWTHORNE, NEW YORK 10532
                                 (914) 592-4660
            (NAME, ADDRESS AND TELEPHONE NUMBER OF PERSON AUTHORIZED
          TO RECEIVE NOTICES AND COMMUNICATIONS ON BEHALF OF BIDDERS)

                                    COPY TO:
                             KLAUS H. JANDER, ESQ.
                           RICHARD T. MCDERMOTT, ESQ.
                               ROGERS & WELLS LLP
                                200 PARK AVENUE
                            NEW YORK, NEW YORK 10166
                                 (212) 878-8000

                           CALCULATION OF FILING FEE
Transaction Valuation*: $637,761,832.00       Amount of Filing Fee: $127,552.00
- ---------------
 * For purposes of calculating the fee only. This amount assumes the purchase of
   17,236,806 shares of common stock, par value $1.00 per share (the "Shares")
   of VWR Scientific Products Corporation at a price per share of $37.00, net to
   the seller in cash, without interest thereon. The amount of the filing fee,
   calculated in accordance with Section 14(g)(3) and Rule 0-11(d) under the
   Securities Exchange Act of 1934, as amended, equals 1/50th of one percent of
   the aggregate of the cash offered by the Bidders.

[ ] Check box if any part of the fee is offset as provided by Rule 0-11(a)(2)
    and identify the filing with which the offsetting fee was previously paid.
    Identify the previous filing by registration statement number, or the form
    or schedule and the date of its filing.

<TABLE>
   <S>                                            <C>
   Amount Previously Paid: Not Applicable         Filing Party: Not Applicable
   Form or registration no.: Not Applicable       Date Filed: Not Applicable
</TABLE>

                         (Continued on following pages)
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
<PAGE>   2

                                 SCHEDULE 14D-1

    CUSIP NO. 918435108                                        PAGE 2

<TABLE>
<S>        <C>                                                          <C>
- ---------------------------------------------------------------------------

  1        NAME OF REPORTING PERSONS
           EM SUBSIDIARY, INC.
           S.S. OR I.R.S. IDENTIFICATION NUMBER OF
           ABOVE PERSONS
- ---------------------------------------------------------------------------
  2        CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (a) [ ]
                                                            (b) [X]
- ---------------------------------------------------------------------------
  3        SEC USE ONLY
- ---------------------------------------------------------------------------
  4        SOURCES OF FUNDS
           AF
- ---------------------------------------------------------------------------
  5        CHECK IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED
           PURSUANT TO ITEMS 2(e) or 2(f) [ ]
- ---------------------------------------------------------------------------
  6        CITIZENSHIP OR PLACE OF ORGANIZATION
           Pennsylvania
- ---------------------------------------------------------------------------
  7        AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
           15,538,784
- ---------------------------------------------------------------------------
  8        CHECK IF THE AGGREGATE AMOUNT IN ROW 7 EXCLUDES CERTAIN
           SHARES [ ]
- ---------------------------------------------------------------------------
  9        PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 7
           49.9%
- ---------------------------------------------------------------------------
  10       TYPE OF REPORTING PERSON
           CO
- ---------------------------------------------------------------------------
</TABLE>
<PAGE>   3

                                 SCHEDULE 14D-1

    CUSIP NO. 918435108                                        PAGE 3

<TABLE>
<S>        <C>                                                          <C>
- ---------------------------------------------------------------------------

  1        NAME OF REPORTING PERSONS
           EM LABORATORIES, INCORPORATED
           S.S. OR I.R.S. IDENTIFICATION
           NUMBER OF ABOVE PERSONS
- ---------------------------------------------------------------------------
  2        CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (a) [ ]
                                                            (b) [X]
- ---------------------------------------------------------------------------
  3        SEC USE ONLY
- ---------------------------------------------------------------------------
  4        SOURCES OF FUNDS AF
- ---------------------------------------------------------------------------
  5        CHECK IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED
           PURSUANT TO ITEMS 2(e) or 2(f) [ ]
- ---------------------------------------------------------------------------
  6        CITIZENSHIP OR PLACE OF ORGANIZATION
           New York
- ---------------------------------------------------------------------------
  7        AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
           15,538,784
- ---------------------------------------------------------------------------
  8        CHECK IF THE AGGREGATE AMOUNT IN ROW 7 EXCLUDES CERTAIN
           SHARES [ ]
- ---------------------------------------------------------------------------
  9        PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 7
           49.9%
- ---------------------------------------------------------------------------
  10       TYPE OF REPORTING PERSON
           CO
- ---------------------------------------------------------------------------
</TABLE>
<PAGE>   4

                                 SCHEDULE 14D-1

    CUSIP NO. 918435108                                        PAGE 4

<TABLE>
<S>        <C>                                                          <C>
- ---------------------------------------------------------------------------

  1        NAME OF REPORTING PERSONS
           MERCK KGaA, DARMSTADT, GERMANY
           S.S. OR I.R.S. IDENTIFICATION
           NUMBER OF ABOVE PERSONS
- ---------------------------------------------------------------------------
  2        CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (a) [ ]
                                                            (b) [X]
- ---------------------------------------------------------------------------
  3        SEC USE ONLY
- ---------------------------------------------------------------------------
  4        SOURCES OF FUNDS WC
- ---------------------------------------------------------------------------
  5        CHECK IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED
           PURSUANT TO ITEMS 2(e) or 2(f) [ ]
- ---------------------------------------------------------------------------
  6        CITIZENSHIP OR PLACE OF ORGANIZATION
           Germany
- ---------------------------------------------------------------------------
  7        AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
           15,538,784
- ---------------------------------------------------------------------------
  8        CHECK IF THE AGGREGATE AMOUNT IN ROW 7 EXCLUDES CERTAIN
           SHARES [ ]
- ---------------------------------------------------------------------------
  9        PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 7
           49.9%
- ---------------------------------------------------------------------------
  10       TYPE OF REPORTING PERSON
           CO
- ---------------------------------------------------------------------------
</TABLE>
<PAGE>   5

ITEM 1.  SECURITY AND SUBJECT COMPANY.

     (a) The name of the subject company is VWR Scientific Products Corporation,
a Pennsylvania corporation (the "Company"). The address of the Company's
principal executive offices is 1310 Goshen Parkway, West Chester, Pennsylvania
19380.

     (b) This Statement relates to the offer by EM Subsidiary, Inc., a
Pennsylvania corporation ("Purchaser"), a wholly-owned subsidiary of EM
Laboratories, Inc., a New York corporation ("Parent") that is an indirect
subsidiary of Merck KGaA, Darmstadt, Germany, a Germany company ("Merck KGaA"),
to purchase all the outstanding shares of common stock, par value $1.00 per
share (the "Shares") of the Company which are not owned by the Purchaser and its
stockholders at a purchase price of $37.00 per Share, net to the seller in cash
without interest thereon, upon the terms and subject to the conditions set forth
in the Offer to Purchase, dated June 14, 1999 (the "Offer to Purchase"), and the
related Letter of Transmittal (which, together with any supplements or
amendments thereto, collectively constitute the "Offer"), copies of which are
filed as Exhibits (a)(1) and (a)(2) hereto, respectively. As of May 31, 1999,
there were 28,968,627 Shares outstanding, of which the Purchaser beneficially
owns 15,538,784.

     (c) The information set forth in Section 7 ("Price Range of Shares;
Dividends") of the Offer to Purchase is incorporated herein by reference.

ITEM 2.  IDENTITY AND BACKGROUND.

     (a)-(d), (g) This Statement is being filed by Purchaser, Parent and Merck
KGaA (collectively, the "Bidders"). Purchaser is a wholly-owned subsidiary of
Parent. Parent is an indirect subsidiary of Merck KGaA. The information set
forth in the Offer to Purchase under "Introduction," in Section 9 ("Certain
Information Concerning Purchaser, Parent, Merck KGaA and Certain Related
Parties") and in Schedule I to the Offer to Purchase is incorporated herein by
reference.

     (e)-(f) During the last five years, none of the Bidders nor to the best of
their knowledge, any of the persons listed in Schedule I to the Offer to
Purchase, (i) has been convicted in a criminal proceeding (excluding traffic
violations or similar misdemeanors) or (ii) was a party to a civil proceeding of
a judicial or administrative body of competent jurisdiction and as a result of
any such proceeding was or is subject to a judgment, decree or final order
enjoining further violations of, or prohibiting activities subject to, federal
or state securities laws or finding any violation of such laws.

ITEM 3.  PAST CONTACTS, TRANSACTIONS OR NEGOTIATIONS WITH THE SUBJECT COMPANY.

     (a)-(b) The information set forth in Section 11 ("Background of the Offer;
Contacts with the Company") of the Offer to Purchase is incorporated herein by
reference.

ITEM 4.  SOURCE AND AMOUNT OF FUNDS OR OTHER CONSIDERATION.

     (a)-(b) The information set forth in Section 10 ("Source and Amount of
Funds") of the Offer to Purchase is incorporated herein by reference.

     (c) Not applicable.

ITEM 5.  PURPOSE OF THE TENDER OFFER AND PLANS OR PROPOSALS OF THE BIDDER.

     (a)-(e) The information set forth in Section 12 ("Purpose of the Offer and
the Proposed Merger; Plans for the Company") and Section 15 ("The Merger") of
the Offer to Purchase is incorporated herein by reference.

     (f)-(g) The information set forth in Section 13 ("Certain Effects of the
Transaction") of the Offer to Purchase is incorporated herein by reference.

                                        5
<PAGE>   6

ITEM 6.  INTEREST IN SECURITIES OF THE SUBJECT COMPANY.

     (a)-(b) The information set forth in the "Introduction," Section 12
("Purpose of the Offer and the Proposed Merger; Plans for the Company"), Section
9 ("Certain Information Concerning Purchaser, Parent, Merck KGaA and Certain
Other Related Parties"), and Section 15 ("The Merger") of the Offer to Purchase
is incorporated herein by reference.

ITEM 7.  CONTRACTS, ARRANGEMENTS, UNDERSTANDINGS OR RELATIONSHIPS WITH RESPECT
         TO THE SUBJECT COMPANY'S SECURITIES.

     The information set forth in the "Introduction," Section 11 ("Background of
the Offer; Contacts with the Company"), Section 12 ("Purpose of the Offer and
the Proposed Merger; Plans for the Company"), Section 9 ("Certain Information
Concerning Purchaser, Parent, Merck KGaA and Certain Related Parties"), and in
Section 15 ("The Merger") of the Offer to Purchase is incorporated herein by
reference.

ITEM 8.  PERSONS RETAINED, EMPLOYED OR TO BE COMPENSATED.

     The information set forth in the "Introduction" and Section 18 ("Fees and
Expenses") of the Offer to Purchase is incorporated herein by reference.

ITEM 9.  FINANCIAL STATEMENTS OF CERTAIN BIDDER.

     Not applicable.

ITEM 10.  ADDITIONAL INFORMATION.

     (a) The information set forth in Section 11 ("Background of the Offer;
Contacts with the Company"), Section 12 ("Purpose of the Offer and the Proposed
Merger; Plans for the Company"), and Section 15 ("The Merger") of the Offer to
Purchase is incorporated herein by reference.

     (b)-(c) The information set forth in Section 17 ("Certain Legal Matters;
Regulatory Approvals") the Offer to Purchase is incorporated herein by
reference.

     (d) Not applicable.

     (e) The information set forth in Section 17 ("Certain Legal Matters;
Regulatory Approvals") the Offer to Purchase is incorporated herein by
reference.

     (f) The information set forth in the Offer to Purchase, the related Letter
of Transmittal and the Agreement and Plan of Merger, dated June 8, 1999, by and
among Parent, Purchaser and the Company, the Shareholder Agreement, dated June
8, 1999, the Standstill Agreement, dated February 27, 1995, and Amendment No. 1
to the Standstill Agreement, dated September 15, 1995 copies of which are filed
as Exhibits (a)(1), (a)(2), (c)(1), (c)(2), (c)(3), (c)(4), (c)(5), (c)(6) and
(c)(7) hereto, respectively, is incorporated herein by reference in its
entirety.

                                        6
<PAGE>   7

ITEM 11.  MATERIAL TO BE FILED AS EXHIBITS.

<TABLE>
<CAPTION>
EXHIBIT NO.                           DESCRIPTION
- -----------                           -----------
<C>           <S>
 (a)(1)       Offer to Purchase, dated June 14, 1999.
 (a)(2)       Letter of Transmittal.
 (a)(3)       Notice of Guaranteed Delivery.
 (a)(4)       Form of letter dated June 14, 1999, to brokers, dealers,
              commercial banks, trust companies and other nominees.
 (a)(5)       Form of letter to be used by brokers, dealers, commercial
              banks, trust companies and nominees to their clients.
 (a)(6)       Guidelines for Certification of Taxpayer Identification
              Number on Substitute Form W-9.
 (a)(7)       Summary Advertisement, dated June 14, 1999.
 (a)(8)       Press Release, dated June 9, 1999 (in German with English
              translation).
 (c)(1)       Agreement and Plan of Merger, dated June 8, 1999.
 (c)(2)       Shareholder Agreement, dated June 8, 1999.
 (c)(3)       Standstill Agreement, dated February 27, 1995.
 (c)(4)       Amendment Number One to the Standstill Agreement, dated
              September 15, 1995.
 (c)(5)       Common Share and Warrant Purchase Agreement, dated February
              27, 1995.*
 (c)(6)       Common Share and Debenture Purchase Agreement, dated May 24,
              1995.*
 (c)(7)       Subordinated Debenture, dated September 15, 1995.*
</TABLE>

- ---------------
* Incorporated by reference to the Schedule 14D-9 filed by the Company on June
  14, 1999.

                                        7
<PAGE>   8

                                   SIGNATURE

     After due inquiry and to the best of my knowledge and belief, I certify
that the information set forth in this statement is true, complete and correct.

Dated: June 14, 1999
                                          EM SUBSIDIARY, INC.

                                          By:       /s/ DIETER JANSSEN

                                              ----------------------------------
                                          Name: Dieter Janssen
                                          Title:  President

                                          EM LABORATORIES, INCORPORATED

                                          By:      /s/ STEPHEN J. KUNST

                                              ----------------------------------
                                          Name: Stephen J. Kunst
                                          Title:  Vice-President & Secretary

                                          MERCK KGaA, DARMSTADT, GERMANY

                                          By:     /s/ KLAUS-PETER BRANDIS

                                              ----------------------------------
                                          Name: Klaus-Peter Brandis
                                          Title:  Departmental Director
                                          (Abteilungsdirektor)

                                        8
<PAGE>   9

                                 EXHIBIT INDEX

<TABLE>
<CAPTION>
EXHIBIT NO.                          DESCRIPTION
- -----------                          -----------
<C>          <S>
  (a)(1)     Offer to Purchase, dated June 14, 1999.
  (a)(2)     Letter of Transmittal.
  (a)(3)     Notice of Guaranteed Delivery.
  (a)(4)     Form of letter, dated June 14, 1999, to brokers, dealers,
             commercial banks, trust companies and other nominees.
  (a)(5)     Form of letter to be used by brokers, dealers, commercial
             banks, trust companies and nominees to their clients.
  (a)(6)     Guidelines for Certification of Taxpayer Identification
             Number on Substitute Form W-9.
  (a)(7)     Form of Summary Advertisement, dated June 14, 1999.
  (a)(8)     Press Release, dated June 9, 1999 (in German with English
             translation).
  (c)(1)     Agreement and Plan of Merger, dated June 8, 1999.
  (c)(2)     Shareholder Agreement, dated June 8, 1999.
  (c)(3)     Standstill Agreement, dated February 27, 1995.
  (c)(4)     Amendment Number One to the Standstill Agreement, dated
             September 15, 1995.
  (c)(5)     Common Share and Warrant Purchase Agreement, dated February
             27, 1995.*
  (c)(6)     Common Share and Debenture Purchase Agreement, dated May 24,
             1995.*
  (c)(7)     Subordinated Debenture, dated September 15, 1995.*
</TABLE>

- ---------------
* Incorporated by reference to the Schedule 14D-9 filed by the Company on June
  14, 1999.

<PAGE>   1

                           OFFER TO PURCHASE FOR CASH

                     ALL OUTSTANDING SHARES OF COMMON STOCK
                                       OF

                      VWR SCIENTIFIC PRODUCTS CORPORATION
                                       AT

                              $37.00 NET PER SHARE
                                       BY

                              EM SUBSIDIARY, INC.,
                          A WHOLLY OWNED SUBSIDIARY OF

                         EM LABORATORIES, INCORPORATED,
                           AN INDIRECT SUBSIDIARY OF

                         MERCK KGaA, DARMSTADT, GERMANY

    THE OFFER AND WITHDRAWAL RIGHTS WILL EXPIRE AT 12:00 MIDNIGHT, NEW YORK
      CITY TIME, ON TUESDAY, JULY 13, 1999, UNLESS THE OFFER IS EXTENDED.

    THE OFFER IS BEING MADE PURSUANT TO AN AGREEMENT AND PLAN OF MERGER, DATED
JUNE 8, 1999, BY AND AMONG VWR SCIENTIFIC PRODUCTS CORPORATION (THE "COMPANY"),
EM LABORATORIES, INCORPORATED ("PARENT") AND EM SUBSIDIARY, INC. ("PURCHASER").
THE BOARD OF DIRECTORS OF THE COMPANY (1) HAS APPROVED (BY UNANIMOUS VOTE, WITH
THE AFFILIATED DIRECTORS (AS DEFINED BELOW) NOT PARTICIPATING) EACH OF THE
OFFER, THE MERGER, AND THE MERGER AGREEMENT AND THE SHAREHOLDERS AGREEMENT
(EACH, AS DEFINED BELOW), (2) HAS DETERMINED THAT THE TERMS OF EACH OF THE OFFER
AND THE MERGER ARE FAIR TO, AND IN THE BEST INTERESTS OF, THE COMPANY AND ITS
SHAREHOLDERS (OTHER THAN PARENT AND ITS AFFILIATES), AND (3) RECOMMENDS THAT THE
SHAREHOLDERS OF THE COMPANY ACCEPT THE OFFER AND TENDER THEIR SHARES PURSUANT TO
THE OFFER.

    THE OFFER IS CONDITIONED UPON, AMONG OTHER THINGS, (1) THERE BEING VALIDLY
TENDERED AND NOT WITHDRAWN PRIOR TO THE EXPIRATION OF THE OFFER A NUMBER OF
SHARES WHICH REPRESENTS AT LEAST A MAJORITY OF THE TOTAL NUMBER OF OUTSTANDING
SHARES OF THE COMPANY, EXCLUDING ANY SHARES HELD BY PARENT, PURCHASER OR ANY
AFFILIATE THEREOF, (2) THE EXPIRATION OR TERMINATION OF ANY APPLICABLE WAITING
PERIOD UNDER THE HART-SCOTT-RODINO ANTITRUST IMPROVEMENTS ACT OF 1976, AS
AMENDED, OR ANY SIMILAR APPLICABLE FOREIGN LAW, (3) COMPLIANCE WITH SECTION 721
OF TITLE VII OF THE DEFENSE PRODUCTION ACT OF 1950, AS AMENDED, KNOWN AS THE
EXON-FLORIO PROVISIONS, AND (4) THE SATISFACTION OR WAIVER OF CERTAIN CONDITIONS
TO THE OBLIGATIONS OF PURCHASER AND THE COMPANY TO CONSUMMATE THE OFFER AND THE
TRANSACTIONS CONTEMPLATED BY THE MERGER AGREEMENT. SEE SECTION 14.

    Parent and its affiliates already beneficially own 49.89% of the total
number of outstanding Shares of the Company and the Company's Directors and
Executive Officers (who beneficially own approximately 4.18% of the total number
of Outstanding Shares of the Company) have indicated that they intend to tender
their Shares in response to the Offer or vote in favor of the Merger.
Furthermore, Purchaser and Parent have entered into a Shareholder Agreement with
certain Shareholders of the Company pursuant to which, among other things, such
Shareholders have agreed to tender in the Offer, upon the terms and subject to
the conditions of the Shareholder Agreement, all Shares owned by such
Shareholders (beneficially owning approximately 2.50% of the total number of
Outstanding Shares of the Company). Therefore, if the minimum condition (as
defined below) is met the merger can be approved without the vote of any other
Shareholder.

    THIS TRANSACTION HAS NOT BEEN APPROVED OR DISAPPROVED BY THE SECURITIES AND
EXCHANGE COMMISSION NOR HAS THE SECURITIES AND EXCHANGE COMMISSION PASSED UPON
THE FAIRNESS OR MERITS OF SUCH TRANSACTION NOR UPON THE ACCURACY OR ADEQUACY OF
THE INFORMATION CONTAINED IN THIS DOCUMENT. ANY REPRESENTATION TO THE CONTRARY
IS UNLAWFUL.
                            ------------------------

                                   IMPORTANT

    Any shareholder desiring to tender all or any portion of such shareholder's
shares of common stock, par value $1.00, of the Company (the "Shares") should
either (i) complete and sign the enclosed Letter of Transmittal (or a facsimile
thereof) in accordance with the instructions set forth in the Letter of
Transmittal and (A) mail or deliver the Letter of Transmittal (or a facsimile
thereof), together with the certificate(s) representing the tendered Shares, and
any other required documents to the Depositary (as defined herein) or (B) tender
such Shares pursuant to the procedure for book-entry transfer set forth in
Section 3 of this Offer to Purchase or (ii) request such shareholder's broker,
dealer, commercial bank, trust company or other nominee to effect such
transaction for such shareholder. Any shareholder whose Shares are registered in
the name of a broker, dealer, commercial bank, trust company or other nominee
must contact such broker, dealer, commercial bank, trust company or other
nominee if such shareholder desires to tender such Shares.

    ANY SHAREHOLDER WHO DESIRES TO TENDER SHARES AND WHOSE CERTIFICATES
REPRESENTING SUCH SHARES ARE NOT IMMEDIATELY AVAILABLE OR WHO CANNOT COMPLY WITH
THE PROCEDURE FOR BOOK-ENTRY TRANSFER ON A TIMELY BASIS MAY TENDER SUCH SHARES
BY FOLLOWING THE PROCEDURES FOR GUARANTEED DELIVERY SET FORTH IN SECTION 3 OF
THIS OFFER TO PURCHASE.

    Questions and requests for assistance may be directed to the Dealer Manager
or the Information Agent (as such terms are defined herein) at their respective
addresses and telephone numbers set forth on the back cover of this Offer to
Purchase. Additional copies of this Offer to Purchase, the Letter of
Transmittal, or other tender offer materials may be obtained from the
Information Agent.
                            ------------------------

                      THE DEALER MANAGER FOR THE OFFER IS:
                                LEHMAN BROTHERS
    June 14, 1999
<PAGE>   2

                               TABLE OF CONTENTS

<TABLE>
<CAPTION>
                                                              PAGE
                                                              -----
<S>                                                           <C>
INTRODUCTION................................................      1
THE TENDER OFFER............................................      4
 1.  Terms of the Offer; Expiration Date....................      4
 2.  Acceptance for Payment and Payment for Shares..........      5
 3.  Procedures for Tendering Shares........................      6
 4.  Withdrawal Rights......................................      9
 5.  Certain Federal Income Tax Consequences................      9
 6.  Fairness of the Transaction............................     10
 7.  Price Range of Shares; Dividends.......................     21
 8.  Certain Information Concerning the Company.............     22
 9.  Certain Information Concerning Purchaser, Parent, Merck
     KGaA and Certain Related Parties.......................     26
10.  Source and Amount of Funds.............................     31
11.  Background of the Offer; Contacts with the Company.....     31
12.  Purpose of the Offer; the Proposed Merger; Plans for
  the Company...............................................     34
13.  Certain Effects of the Transaction.....................     35
14.  Conditions of the Offer................................     36
15.  The Merger.............................................     38
16.  Dividends and Distributions............................     49
17.  Certain Legal Matters; Regulatory Approvals............     49
18.  Fees and Expenses......................................     52
19.  Miscellaneous..........................................     52
SCHEDULE I
  DIRECTORS AND EXECUTIVE OFFICERS OF PURCHASER, PARENT AND
  MERCK KGaA; GENERAL PARTNERS AND MEMBERS OF THE EXECUTIVE
  BOARD OF E. MERCK.........................................    I-1
SCHEDULE II
  OPINION OF BT ALEX. BROWN INCORPORATED....................   II-1
SCHEDULE III
  OPINION OF WARBURG DILLON READ LLC........................  III-1
SCHEDULE IV
  SECTIONS 1930(a) AND 1571-80 (SUBCHAPTER D OF CHAPTER 15)
  OF THE PENNSYLVANIA BUSINESS CORPORATION LAW SECTION 1930.
  DISSENTERS RIGHTS.........................................   IV-1
SCHEDULE V
  AUDITED FINANCIAL STATEMENTS (AND RELATED NOTES) OF THE
  COMPANY FOR THE YEARS ENDED DECEMBER 31, 1998, 1997 AND
  1996......................................................    V-1
SCHEDULE VI
  INTERIM FINANCIAL STATEMENTS OF THE COMPANY FOR THE THREE-
  MONTH PERIOD ENDED MARCH 31, 1999.........................   VI-1
</TABLE>

                                        i
<PAGE>   3

To the Holders of Shares of Common Stock of VWR Scientific Products Corporation:

                                  INTRODUCTION

     EM Subsidiary, Inc., a Pennsylvania corporation ("Purchaser") and a
wholly-owned subsidiary of EM Laboratories, Incorporated, a New York corporation
("Parent"), which is an indirect subsidiary of Merck KGaA, Darmstadt, Germany, a
German company ("Merck KGaA"), hereby offers to purchase all outstanding shares
of common stock, par value $1.00 per share (the "Shares"), of VWR Scientific
Products Corporation, a Pennsylvania corporation (the "Company"), at $37.00 per
Share, net to the seller in cash without interest thereon (the "Offer Price"),
upon the terms and subject to the conditions set forth in this Offer to Purchase
and in the related Letter of Transmittal (which, together with any supplements
or amendments thereto, collectively constitute the "Offer").

     Tendering shareholders will not be obligated to pay brokerage fees or
commissions or, except as set forth in Instruction 6 of the Letter of
Transmittal, stock transfer taxes on the transfer and sale of Shares pursuant to
the Offer. However, any tendering shareholder or other payee who fails to
complete and sign the Substitute Form W-9 included in the Letter of Transmittal
may be subject to a required backup federal income tax withholding of 31% of the
gross proceeds payable to such shareholder or other payee pursuant to the Offer.
Purchaser will pay all fees and expenses of Lehman Brothers Inc., which is
acting as dealer manager for the Offer (in such capacity, the "Dealer Manager"),
IBJ Whitehall Bank & Trust Company, which is acting as the depositary (in such
capacity, the "Depositary"), and Beacon Hill Partners, Inc., which is acting as
the information agent (in such capacity, the "Information Agent"), incurred in
connection with the Offer. See Section 18.

     THE BOARD OF DIRECTORS OF THE COMPANY (1) HAS APPROVED (BY UNANIMOUS VOTE,
WITH THE AFFILIATED DIRECTORS (AS DEFINED BELOW) NOT PARTICIPATING) EACH OF THE
OFFER, THE MERGER AND THE MERGER AGREEMENT AND THE SHAREHOLDERS AGREEMENT (EACH
AS DEFINED HEREIN), (2) HAS DETERMINED THAT THE TERMS OF EACH OF THE OFFER AND
THE MERGER ARE FAIR TO, AND IN THE BEST INTERESTS OF, THE COMPANY AND ITS
SHAREHOLDERS (OTHER THAN PARENT AND ITS AFFILIATES) AND (3) RECOMMENDS THAT THE
SHAREHOLDERS OF THE COMPANY ACCEPT THE OFFER AND TENDER THEIR SHARES PURSUANT TO
THE OFFER.

     Five members of the current Board of Directors of the Company, which
consists of eleven directors, are representatives of Parent and its affiliates
(collectively, the "Affiliated Directors"). The directors who are not Affiliated
Directors are referred to herein as the "Unaffiliated Directors".

     Each of BT Alex. Brown Incorporated ("BT Alex. Brown") (now merged with
Deutsche Bank Securities Inc. and known as Deutsche Banc Alex. Brown) and
Warburg Dillon Read LLC ("Warburg Dillon Read"), the Company's financial
advisors, has delivered to the Company's Board of Directors and Special
Committee (the "Special Committee") a written opinion dated June 8, 1999 to the
effect that, as of such date and based upon and subject to certain matters
stated therein, the $37.00 per Share cash consideration to be received in the
Offer and the Merger by holders of Shares (other than Merck KGaA and its
affiliates) was fair, from a financial point of view, to such holders. The full
text of the opinions of BT Alex. Brown and Warburg Dillon Read are set forth as
Schedules to this Offer to Purchase and exhibits to the Company's Solicitation/
Recommendation Statement on Schedule 14D-9 (the "Schedule 14D-9"), which the
Company has filed with the Securities and Exchange Commission and which is being
mailed to the Company's shareholders simultaneously with this Offer to Purchase.
Shareholders are urged to, and should, read such opinions carefully in their
entirety.

     THE OFFER IS CONDITIONED UPON, AMONG OTHER THINGS, (I) THERE BEING VALIDLY
TENDERED AND NOT WITHDRAWN PRIOR TO THE EXPIRATION OF THE OFFER A NUMBER OF
SHARES REPRESENTING AT LEAST A MAJORITY OF THE OUTSTANDING SHARES, EXCLUDING ANY
SHARES HELD BY PARENT, PURCHASER, THE COMPANY OR ANY AFFILIATE THEREOF (THE
"MINIMUM CONDITION"), (II) THE EXPIRATION OR TERMINATION OF ANY APPLICABLE
WAITING PERIOD UNDER THE HART-SCOTT-RODINO ANTITRUST IMPROVEMENTS ACT OF 1976,
AS AMENDED (THE "HSR ACT"), AND SIMILAR APPLICABLE
<PAGE>   4

FOREIGN LAWS (THE "HSR CONDITION"), (III) COMPLIANCE WITH SECTION 721 OF TITLE
VII OF THE DEFENSE PRODUCTION ACT OF 1950, AS AMENDED, KNOWN AS THE EXON-FLORIO
PROVISIONS, AND (IV) THE SATISFACTION OR WAIVER OF CERTAIN CONDITIONS TO THE
OBLIGATIONS OF PURCHASER AND THE COMPANY TO CONSUMMATE THE OFFER. SEE SECTION
14. PURCHASER EXPRESSLY RESERVES THE RIGHT, SUBJECT ONLY TO THE APPLICABLE RULES
AND REGULATIONS OF THE SECURITIES AND EXCHANGE COMMISSION (THE "COMMISSION"), TO
WAIVE EACH OF THE CONDITIONS (OTHER THAN THE MINIMUM CONDITION, WHICH MAY NOT BE
WAIVED WITHOUT THE CONSENT OF THE COMPANY) TO THE OBLIGATIONS OF PURCHASER TO
CONSUMMATE THE OFFER AND THE TRANSACTIONS CONTEMPLATED BY THE MERGER AGREEMENT.
SEE SECTION 14.

     The Offer is being made pursuant to an Agreement and Plan of Merger, dated
June 8, 1999 (the "Merger Agreement"), by and among the Company, Parent and
Purchaser. The Merger Agreement provides, among other things, that as soon as
practicable after consummation of the Offer and the satisfaction or waiver of
the conditions to the Merger (as defined below) and in accordance with the
Pennsylvania Business Corporation Law (the "PBCL"), Purchaser shall be merged
with and into the Company (the "Merger"), with the Company continuing as the
surviving corporation in the Merger (the "Surviving Corporation") and as a
wholly-owned subsidiary of Parent. At the effective time of the Merger (the
"Effective Time"), each issued and outstanding Share not tendered in the Offer
(other than Shares held by the Company, Parent or any subsidiary of Company or
Parent, and Shares held by shareholders who properly exercise their dissenters'
rights under the PBCL), will be converted into the right to receive the Offer
Price (the "Merger Consideration"), without interest thereon. The Merger
Agreement is more fully described in Section 15.

     The Merger Agreement provides that promptly upon the purchase by Purchaser
of Shares pursuant to the Offer (but subject to the satisfaction of the Minimum
Condition), Purchaser shall be entitled, to the fullest extent permitted by law,
to designate at its option up to that number of directors, rounded to the next
highest whole number, on the Company's Board of Directors, subject to compliance
with Section 14(f) of the Securities Exchange Act of 1934, as amended (the
"Exchange Act"), as will make the percentage of the Company's directors
designated by Purchaser equal to the aggregate voting power of the Shares held
by Parent or any of its subsidiaries. Any directors designated by Purchaser
pursuant to the Merger Agreement and appointed to the Company's Board of
Directors will be in addition to directors appointed to the Company's Board of
Directors by Parent pursuant to the Standstill Agreement (as defined herein). In
addition, the Merger Agreement provides that the Company's Board of Directors
must, until the Effective Time, have at least three directors who were directors
on the date of the Merger Agreement or who were designated by a majority of the
directors of the Company who were directors on the date of the Merger Agreement,
in each case excluding directors designated by Parent pursuant to the Standstill
Agreement. In the Merger Agreement, the Company has agreed to take any and all
actions within the Company's power, to the extent permitted by applicable law,
which are reasonably necessary to cause Purchaser's designees to be appointed to
the Board of Directors of the Company, including by increasing the size of the
Board of Directors or using its best efforts to cause incumbent directors to
resign or both.

     The consummation of the Merger is subject to the satisfaction or waiver of
certain conditions, including, if required by applicable law, the approval and
adoption of the Merger Agreement by the requisite vote of the shareholders of
the Company. See Section 15. Under the Company's Articles of Incorporation and
the PBCL, except as otherwise described below, the affirmative vote of a
majority of the votes cast by all shareholders entitled to vote thereon is
required to approve and adopt the Merger Agreement and the Merger. Consequently,
if the Minimum Condition is fulfilled, Purchaser will have sufficient voting
power to approve the merger without the vote of any other shareholder.

     Under the PBCL, if Purchaser acquires, pursuant to the Offer or otherwise,
at least 80% of the then outstanding Shares, Purchaser will be able to approve
and adopt the Merger Agreement and to effect the Merger without a vote of the
Company's shareholders (a "Short-Form Merger"). If Purchaser does acquire
sufficient Shares to effect a Short-Form Merger, Parent, Purchaser and the
Company have agreed to take all necessary and appropriate action to cause the
Merger to become effective as promptly as practicable after such acquisition,
without a meeting of the Company's shareholders. If Purchaser does not acquire
at least 80% of the then issued and outstanding Shares pursuant to the Offer or
otherwise and a vote of the Company's

                                        2
<PAGE>   5

shareholders is required under the PBCL to effect the Merger, a longer period of
time will be required to effect the Merger. See Section 15.

     In connection with the execution of the Merger Agreement, Parent and
Purchaser entered into a Shareholder Agreement, dated as of June 8, 1999 (the
"Shareholder Agreement"), with N. Stewart Rogers and Jerrold B. Harris (the
"Share Tender Parties") who beneficially own, in the aggregate, approximately
2.50% of the outstanding Shares as of May 31, 1999. Pursuant to the Shareholder
Agreement, each Share Tender Party has, among other things, agreed (i) to tender
his Shares pursuant to the Offer and (ii) to vote the Shares beneficially owned
by him in favor of the Merger and the Merger Agreement. In addition, pursuant to
the Shareholder Agreement, each Share Tender Party has granted to Parent or
Purchaser, as Parent may designate, an option (the "Option") to purchase the
Shares beneficially owned by such Share Tender Party under certain
circumstances. See Section 15.

     Parent, together with its affiliate, Merck Labor GmbH, a German company, is
as of the date of this Offer to Purchase, the beneficial owner of 15,538,784
Shares, representing 49.89% of the issued and outstanding Shares and option.
This amount includes 1,176,448 Shares which Merck KGaA has the right to acquire
in the event employee stock options are exercised. Pursuant to the Standstill
Agreement between EM Industries, Incorporated, a New York corporation and direct
parent company of Parent ("EM Industries") and the Company, dated as of February
27, 1995, as amended by that certain Amendment Number One to the Standstill
Agreement, by and among EM Industries, Parent, and the Company, dated September
15, 1995 (the "Standstill Agreement"), Parent and its affiliates have the right
to maintain a 49.89% interest in the event the Company issues additional Shares.

     Pursuant to the Merger Agreement, the Standstill Agreement will terminate
in its entirety upon the acquisition of Shares by Purchaser pursuant to the
Offer.

     All of the Shares held by Parent and its affiliates will be voted to
approve and adopt the Merger Agreement. As discussed above, the Shareholder
Agreement provides that each Share Tender Party shall vote the Shares
beneficially owned by him in favor of the Merger and the Merger Agreement and
shall tender his Shares pursuant to the Offer. In addition, the directors and
executive officers of the Company, who together with the Share Tender Parties
beneficially own, in the aggregate, approximately 4.18% of the outstanding
Shares, have indicated that they intend to tender their Shares in response to
the Offer (or, under some circumstances, to retain their Shares but vote them in
favor of the Merger). If the Minimum Condition is fulfilled, Purchaser will have
sufficient voting power to approve and adopt the Merger under the PBCL even if
no other shareholders vote in favor of it.

     The Company has informed Purchaser that as of the close of business on May
31, 1999, there were 28,968,627 Shares issued and outstanding and 2,723,684
Shares reserved for issuance upon the exercise of outstanding options, warrants
or other rights to acquire Shares, of which 1,100,134 Shares are covered by
options, warrants or other rights to acquire Shares that are vested. Based upon
the foregoing, Purchaser believes that based on the amount of Shares outstanding
as of May 31, 1999 the Minimum Condition will be satisfied if at least 8,621,454
Shares are validly tendered and not withdrawn prior to the expiration of the
Offer (including those Shares tendered pursuant to the Shareholder Agreement).
If the Minimum Condition is satisfied and Purchaser accepts for payment Shares
tendered pursuant to the Offer, Purchaser will be able to elect a majority of
the members of the Company's Board of Directors and to effect the Merger without
the affirmative vote of any other shareholder of the Company.

     The Merger Agreement and the Shareholder Agreement are more fully discussed
in Section 15. Certain Federal income tax consequences of the sale of Shares
pursuant to the Offer and the exchange of Shares for the Merger Consideration
pursuant to the Merger are described in Section 5.

     THIS OFFER TO PURCHASE AND THE RELATED LETTER OF TRANSMITTAL CONTAIN
IMPORTANT INFORMATION WHICH SHOULD BE READ CAREFULLY BEFORE ANY DECISION IS MADE
WITH RESPECT TO THE OFFER.

                                        3
<PAGE>   6

                                THE TENDER OFFER

     1.  TERMS OF THE OFFER; EXPIRATION DATE.  Upon the terms and subject to the
conditions of the Offer (including, if the Offer is extended or amended, the
terms and conditions of such extension or amendment), Purchaser will accept for
payment and pay for all Shares validly tendered on or prior to the Expiration
Date and not previously properly withdrawn as described in Section 4. The term
"Expiration Date" means 12:00 Midnight, New York City time, on Tuesday, July 13,
1999, unless and until Purchaser, in its sole discretion (but subject to the
terms and conditions of the Merger Agreement and the applicable rules and
regulations of the Commission), shall have extended the period during which the
Offer is open, in which event the term "Expiration Date" shall mean the latest
time and date at which the Offer, as so extended by Purchaser, shall expire.

     CONSUMMATION OF THE OFFER IS CONDITIONED UPON, AMONG OTHER THINGS,
SATISFACTION OF EACH OF THE MINIMUM CONDITION AND THE HSR CONDITION. THE OFFER
IS ALSO SUBJECT TO CERTAIN OTHER CONDITIONS (TOGETHER WITH THE MINIMUM CONDITION
AND THE HSR CONDITION, THE "OFFER CONDITIONS"). SEE SECTION 14, WHICH SETS FORTH
IN FULL THE OFFER CONDITIONS. IF, PRIOR TO THE EXPIRATION DATE, ANY OR ALL OF
THE OFFER CONDITIONS HAVE NOT BEEN SATISFIED, PURCHASER RESERVES THE RIGHT (BUT
SHALL NOT BE OBLIGATED) TO (I) TERMINATE THE OFFER AND NOT ACCEPT FOR PAYMENT
ANY SHARES AND RETURN ALL TENDERED SHARES TO TENDERING SHAREHOLDERS, (II) WAIVE
ALL THE UNSATISFIED CONDITIONS (OTHER THAN THE MINIMUM CONDITION, WHICH MAY ONLY
BE WAIVED WITH THE CONSENT OF THE COMPANY) AND, SUBJECT TO COMPLYING WITH THE
TERMS OF THE MERGER AGREEMENT AND THE APPLICABLE RULES AND REGULATIONS OF THE
COMMISSION, ACCEPT FOR PAYMENT AND PAY FOR ALL SHARES VALIDLY TENDERED PRIOR TO
THE EXPIRATION DATE AND NOT PREVIOUSLY WITHDRAWN, (III) SUBJECT TO THE TERMS OF
THE MERGER AGREEMENT, EXTEND THE OFFER AND, SUBJECT TO THE RIGHTS OF
SHAREHOLDERS TO WITHDRAW SHARES UNTIL THE EXPIRATION DATE, RETAIN THE SHARES
THAT HAVE BEEN TENDERED DURING THE PERIOD OR PERIODS FOR WHICH THE OFFER IS
EXTENDED OR (IV) SUBJECT TO THE TERMS OF THE MERGER AGREEMENT, OTHERWISE AMEND
THE OFFER.

     Purchaser expressly reserves the right, in its sole discretion (but subject
to the terms of the Merger Agreement and the applicable rules and regulations of
the Commission), at any time and from time to time, and regardless of whether or
not any of the events set forth in Section 14 hereof shall have occurred, by
giving oral or written notice of such amendment to the Depositary, to (i) extend
the period of time during which the Offer is open and thereby delay acceptance
for payment of, and the payment for, any Shares, and (ii) amend the Offer in any
other respect. UNDER NO CIRCUMSTANCES WILL INTEREST BE PAID BY PURCHASER ON THE
OFFER PRICE, REGARDLESS OF ANY EXTENSION OF THE OFFER OR ANY DELAY IN MAKING
SUCH PAYMENT. During any such extension, all Shares previously tendered and not
withdrawn will remain subject to the Offer, subject to the rights of a tendering
shareholder to withdraw any tendered Shares. See Section 4.

     There can be no assurance that Purchaser will exercise its right to extend
the Offer (other than as may be required by the Merger Agreement or applicable
law). Any extension, waiver, amendment or termination will be followed as
promptly as practicable by public announcement thereof. In the case of an
extension, Rule 14e-l(d) under the Exchange Act requires that the announcement
be issued no later than 9:00 a.m., New York City time, on the next business day
after the previously scheduled Expiration Date in accordance with the public
announcement requirements of Rule 14d-4(c) under the Exchange Act. Subject to
applicable law (including Rules 14d-4(c) and 14d-6(d) under the Exchange Act,
which require that any material change in the information published, sent or
given to shareholders in connection with the Offer be promptly disseminated to
shareholders in a manner reasonably designed to inform shareholders of such
change), and without limiting the manner in which Purchaser may choose to make
any public announcement, Purchaser will not have any obligation to publish,
advertise or otherwise communicate any such public announcement other than by
issuing a press release to the Dow Jones News Service.

     In the Merger Agreement, Purchaser has agreed that it will not, without the
prior written consent of the Company, extend the Offer, except that Purchaser
may, without the consent of the Company, (i) extend the Offer, if at the
Expiration Date of the Offer any of the Offer Conditions have not been satisfied
or waived, until such time as such conditions are satisfied or waived, (ii)
extend the Offer for any period required by any rule, regulation, interpretation
or position of the Commission or the staff thereof applicable to the Offer, and
(iii) on one or more occasions, extend the Offer for a period of up to an
aggregate of 15 business days if, on a

                                        4
<PAGE>   7

scheduled expiration date on which the Offer Conditions shall have been
satisfied or waived, the number of Shares that have been validly tendered and
not withdrawn pursuant to the Offer, when taken together with the Shares owned
by Parent, Purchaser or an affiliate thereof do not constitute at least 80% of
the then issued and outstanding Shares. However, the terms of the Merger
Agreement do not require Purchaser to extend the Offer beyond December 31, 1999
(the "Outside Date"). As used in this Offer to Purchase, "business day" has the
meaning set forth in Rule 14D-1 under the Exchange Act.

     In addition, Purchaser has agreed in the Merger Agreement that it will not,
without the prior written consent of the Company, (i) reduce the number of
Shares to be purchased in the Offer, (ii) reduce the Offer Price, (iii) impose
additional conditions to the Offer or modify the Offer Conditions (other than to
waive any of the Offer Conditions to the extent not prohibited by the Merger
Agreement), (iv) extend the Offer, except as provided above, (v) change the form
of consideration payable in the Offer or (v) change or modify any other terms of
the Offer in any manner adverse to the shareholders of the Company.

     If Purchaser extends the Offer or if Purchaser (whether before or after its
acceptance for payment of Shares) is delayed in its acceptance for payment of,
or payment for, Shares or is unable to pay for Shares pursuant to the Offer for
any reason, then, without prejudice to Purchaser's rights under the Offer, the
Depositary may retain tendered Shares on behalf of Purchaser, and such Shares
may not be withdrawn except to the extent tendering shareholders are entitled to
withdrawal rights as described in Section 4. However, the ability of Purchaser
to delay the payment for Shares that Purchaser has accepted for payment is
limited by Rule 14e-1 under the Exchange Act, which requires that a bidder pay
the consideration offered or return the securities deposited by or on behalf of
holders of securities promptly after the termination or withdrawal of such
bidder's offer.

     If Purchaser makes a material change in the terms of the Offer or if it
waives a material condition of the Offer, Purchaser will disseminate additional
tender offer materials and extend the Offer to the extent required by Rules
14d-4(c), 14d-6(d) and 14e-1 under the Exchange Act. The minimum period during
which an offer must remain open following material changes in the terms of the
Offer, other than a change in price or a change in the percentage of securities
sought, will depend upon the facts and circumstances then existing, including
the materiality of the changes. With respect to a change in price or, subject to
certain limitations, a change in the percentage of securities sought, a minimum
of ten business days is generally required to allow for adequate dissemination
to shareholders.

     The Company has provided Purchaser with a list of its shareholders and
security position listings for the purpose of disseminating the Offer to
shareholders. This Offer to Purchase, the related Letter of Transmittal and
other relevant materials will be mailed by Purchaser to record holders of Shares
and furnished to brokers, dealers, commercial banks, trust companies and similar
persons whose names, or the names of whose nominees, appear on the shareholder
list or, if applicable, who are listed as participants in a clearing agency's
security position listing, for subsequent transmittal to beneficial owners of
Shares.

     2.  ACCEPTANCE FOR PAYMENT AND PAYMENT FOR SHARES.  Upon the terms and
subject to the conditions of the Offer (including, if the Offer is extended or
amended, the terms and conditions of any such extension or amendment), Purchaser
will purchase by accepting for payment and will pay for all Shares validly
tendered and not properly withdrawn on or prior to the Expiration Date. Shares
will be accepted as soon as practicable and, in any event, within three business
days after the later to occur of (i) the Expiration Date and (ii) the receipt by
the Depositary of the certificates representing such tendered Shares (the "Share
Certificates"). Any determination concerning the satisfaction of the terms and
conditions of the Offer will be within the sole discretion of Purchaser and such
determination will be final and binding on all tendering shareholders. In
addition, subject to the terms of the Merger Agreement and the applicable rules
of the Commission, Purchaser expressly reserves the right to delay acceptance
for payment of, or payment for, Shares in order to comply in whole or in part
with any applicable law.

     In all cases, payment for Shares tendered and accepted for payment pursuant
to the Offer will be made only after timely receipt by the Depositary of (i)
Share Certificates or timely confirmation of a book-entry

                                        5
<PAGE>   8

transfer (a "Book-Entry Confirmation") of such Shares into the Depositary's
account at The Depository Trust Company (the "Book-Entry Transfer Facility"),
pursuant to the procedures set forth in Section 3 of this Offer to Purchase;
(ii) the Letter of Transmittal (or a facsimile thereof), properly completed and
duly executed, with any required signature guarantees, or an Agent's Message (as
defined below) in connection with a book-entry transfer; and (iii) any other
documents required by the Letter of Transmittal.

     The term "Agent's Message" means a message transmitted by the Book-Entry
Transfer Facility to and received by the Depositary and forming a part of a
Book-Entry Confirmation, which states that the Book-Entry Transfer Facility has
received an express acknowledgment from the participant in the Book-Entry
Transfer Facility which is tendering Shares that such participant has received
and agrees to be bound by the terms of the Letter of Transmittal and that
Purchaser may enforce such agreement against such participant.

     For purposes of the Offer, Purchaser will be deemed to have accepted for
payment, and thereby purchased, Shares validly tendered and not properly
withdrawn as of the Expiration Date, when Purchaser gives oral or written notice
to the Depositary of Purchaser's acceptance for payment of such Shares pursuant
to the Offer. Upon the terms and subject to the conditions of the Offer, payment
for Shares accepted for payment pursuant to the Offer will be made by deposit of
the purchase price therefor with the Depositary, which will act as agent for
tendering shareholders for the purpose of receiving payments from Purchaser and
transmitting such payments to shareholders whose Shares have been accepted for
payment. UNDER NO CIRCUMSTANCES WILL INTEREST BE PAID BY PURCHASER ON THE OFFER
PRICE, REGARDLESS OF ANY EXTENSION OF THE OFFER OR ANY DELAY IN MAKING SUCH
PAYMENT. Upon the deposit of funds with the Depositary for the purpose of making
payments to tendering shareholders, Purchaser's obligation to make such payment
shall be satisfied and tendering shareholders must thereafter look solely to the
Depositary for payment of amounts owed to them by reason of the acceptance for
payment of Shares pursuant to the Offer.

     If, for any reason whatsoever, acceptance for payment of, or payment for,
any Shares validly tendered pursuant to the Offer is delayed or Purchaser is
unable to accept for payment or pay for Shares tendered pursuant to the Offer,
then without prejudice to Purchaser's rights set forth herein, the Depositary
may nevertheless, on behalf of Purchaser and subject to Rule 14e-1(c) under the
Exchange Act, retain tendered Shares, and such Shares may not be withdrawn
except to the extent that the tendering shareholders are entitled to exercise,
and duly exercise, withdrawal rights as described in Section 4.

     If any tendered Shares are not accepted for payment for any reason or if
Share Certificates are submitted for more Shares than are tendered, Share
Certificates evidencing unpurchased or untendered Shares will be returned
without expense to the tendering shareholder (or, in the case of Shares tendered
by book-entry transfer into the Depositary's account at the Book-Entry Transfer
Facility pursuant to the procedures set forth in Section 3, such Shares will be
credited to the appropriate shareholder's account maintained at the Book-Entry
Transfer Facility) as promptly as practicable following the expiration or
termination of the Offer.

     IF, PRIOR TO THE EXPIRATION DATE, PURCHASER INCREASES THE CONSIDERATION
OFFERED TO SHAREHOLDERS PURSUANT TO THE OFFER, SUCH INCREASED CONSIDERATION WILL
BE PAID TO ALL SHAREHOLDERS WHOSE SHARES ARE PURCHASED PURSUANT TO THE OFFER,
REGARDLESS OF WHETHER THOSE SHARES WERE TENDERED PRIOR TO THE INCREASE IN
CONSIDERATION.

     Purchaser reserves the right to transfer or assign, in whole or from time
to time in part, to Parent, or to one or more direct or indirect subsidiaries of
Merck KGaA, the right to purchase Shares tendered pursuant to the Offer. Any
such transfer or assignment will not relieve Purchaser of its obligations under
the Offer and will in no way prejudice the rights of tendering shareholders to
receive payment for Shares validly tendered and accepted for payment pursuant to
the Offer.

     3.  PROCEDURES FOR TENDERING SHARES.  Valid Tender of Shares.  Except as
set forth below, for a shareholder validly to tender Shares pursuant to the
Offer, either (i) a properly completed and duly executed Letter of Transmittal
(or facsimile thereof), together with any required signature guarantees or, in
the case of a book-entry transfer, an Agent's Message, and any other documents
required by the Letter of Transmittal, must be received by the Depositary at one
of its addresses set forth on the back cover of this Offer to Purchase and
either the Share Certificate evidencing tendered Shares must be received by the
Depositary along with the

                                        6
<PAGE>   9

Letter of Transmittal at one of such addresses or such Shares must be delivered
pursuant to the procedure for book-entry transfer set forth below (and a
Book-Entry Confirmation received by the Depositary), in each case prior to the
Expiration Date, or (ii) the tendering shareholder must comply with the
guaranteed delivery procedures set forth below.

     THE METHOD OF DELIVERY OF SHARE CERTIFICATES, THE LETTER OF TRANSMITTAL AND
ALL OTHER REQUIRED DOCUMENTS, INCLUDING DELIVERY THROUGH THE BOOK-ENTRY TRANSFER
FACILITY, IS AT THE OPTION AND RISK OF THE TENDERING SHAREHOLDER, AND THE
DELIVERY WILL BE DEEMED MADE ONLY WHEN ACTUALLY RECEIVED BY THE DEPOSITARY. IF
DELIVERY IS BY MAIL, REGISTERED MAIL WITH RETURN RECEIPT REQUESTED, PROPERLY
INSURED, IS RECOMMENDED. IN ALL CASES, SUFFICIENT TIME SHOULD BE ALLOWED TO
ENSURE TIMELY DELIVERY.

     Book-Entry Transfer.  The Depositary will establish an account with respect
to the Shares at the Book-Entry Transfer Facility for purposes of the Offer
within two business days after the date of this Offer to Purchase. Any financial
institution that is a participant in the Book-Entry Transfer Facility's system
may make book-entry delivery of Shares by causing the Book-Entry Transfer
Facility to transfer such Shares into the Depositary's account in accordance
with the Book-Entry Transfer Facility's procedures for such transfer. Although
delivery of Shares may be effected through book-entry transfer into the
Depositary's account at the Book-Entry Transfer Facility, the Letter of
Transmittal (or facsimile thereof) properly completed and duly executed,
together with any required signature guarantees, or an Agent's Message, and any
other required documents, must, in any case, be transmitted to, and received by,
the Depositary at one of its addresses set forth on the back cover of this Offer
to Purchase prior to the Expiration Date, or the tendering shareholder must
comply with the guaranteed delivery procedures described below.

     DELIVERY OF DOCUMENTS TO THE BOOK-ENTRY TRANSFER FACILITY IN ACCORDANCE
WITH THE BOOK-ENTRY TRANSFER FACILITY'S PROCEDURES DOES NOT CONSTITUTE DELIVERY
TO THE DEPOSITARY.

     Signature Guarantees.  No signature guarantee is required on the Letter of
Transmittal if (i) the Letter of Transmittal is signed by the registered holder
of Shares (which, for purposes of this Section 3, includes any participant in
the Book-Entry Transfer Facility's system whose name appears on a security
position listing as the owner of such Shares) tendered therewith and such
registered holder has not completed either the box entitled "Special Delivery
Instructions" or the box entitled "Special Payment Instructions" on the Letter
of Transmittal or (ii) such Shares are tendered for the account of a firm that
is a member of a recognized Medallion Program approved by The Securities
Transfer Association Inc., including the Security Transfer Agents Medallion
Program, the New York Stock Exchange Medallion Signature Program or the Stock
Exchange Medallion Program (each, an "Eligible Institution"). In all other
cases, all signatures on the Letter of Transmittal must be guaranteed by an
Eligible Institution. See Instructions 1 and 5 to the Letter of Transmittal.

     If a Share Certificate is registered in the name of a person other than the
signer of the Letter of Transmittal, or if payment is to be made, or Share
Certificates not tendered or not accepted for payment are to be issued to a
person other than the registered holder of the certificates surrendered, the
Share Certificate must be endorsed or accompanied by appropriate stock powers,
in either case signed exactly as the name or names of the registered holders or
owners appear on such Share Certificate, with the signatures on such Share
Certificate or stock powers guaranteed as aforesaid. See Instructions 1 and 5 to
the Letter of Transmittal.

     If Share Certificates are forwarded to the Depositary in multiple
deliveries, a properly completed and duly executed Letter of Transmittal (or a
facsimile thereof) must accompany each delivery. No alternative, conditional or
contingent tenders will be accepted and no fractional Shares will be purchased.

     Guaranteed Delivery.  If a shareholder desires to tender Shares pursuant to
the Offer and such shareholder's Share Certificates are not immediately
available, or such shareholder cannot deliver the Share Certificates and all
other required documents in time to reach the Depositary on or prior to the
Expiration

                                        7
<PAGE>   10

Date, or such shareholder cannot complete the procedure for delivery by
book-entry transfer on a timely basis, such Shares may nevertheless be tendered,
provided that all of the following conditions are satisfied:

          (i) such tender is made by or through an Eligible Institution;

          (ii) a properly completed and duly executed Notice of Guaranteed
     Delivery, substantially in the form provided by Purchaser with this Offer
     to Purchase, is received by the Depositary as provided below on or prior to
     the Expiration Date; and

          (iii) the Share Certificates (or a Book-Entry Confirmation),
     representing all tendered Shares in proper form for transfer, together with
     the Letter of Transmittal (or a facsimile thereof) properly completed and
     duly executed, together with any required signature guarantees (or, in the
     case of a book-entry transfer, an Agent's Message) and any other documents
     required by the Letter of Transmittal are received by the Depositary within
     three Nasdaq National Market trading days after the date of execution of
     such Notice of Guaranteed Delivery.

     The Notice of Guaranteed Delivery may be delivered by hand or transmitted
by facsimile transmission or mailed to the Depositary and must include a
guarantee by an Eligible Institution in the form set forth in such Notice of
Guaranteed Delivery.

     Notwithstanding any other provision hereof, payment for Shares accepted for
payment pursuant to the Offer will in all cases be made only after timely
receipt by the Depositary of Share Certificates for, or of Book-Entry
Confirmation with respect to, such Shares, a properly completed and duly
executed Letter of Transmittal (or a facsimile thereof), together with any
required signature guarantees (or, in the case of a book-entry transfer, an
Agent's Message), and any other documents required by the Letter of Transmittal.
Accordingly, payment might not be made to all tendering shareholders at the same
time and will depend upon when Share Certificates are received by the Depositary
or when Book-Entry Confirmation of such Shares into the Depositary's account at
the Book-Entry Transfer Facility is received.

     Appointment as Proxy.  By executing the Letter of Transmittal, a tendering
shareholder will irrevocably appoint designees of Purchaser as such
shareholder's attorneys-in-fact and proxies, with full power of substitution, in
the manner set forth in the Letter of Transmittal, to the full extent of such
shareholder's rights with respect to Shares tendered by such shareholder and
accepted for payment by Purchaser (and with respect to any and all other Shares
or other securities issued or issuable in respect of such Shares on or after the
date of this Offer to Purchase). All such powers of attorney and proxies shall
be considered irrevocable and coupled with an interest in the tendered Shares
(and such other Shares and securities). Such appointment will be effective when,
and only to the extent that, Purchaser accepts such Shares for payment. Upon
such acceptance for payment, all prior powers of attorney and proxies given by
such shareholder with respect to such Shares (and such other Shares and
securities) will be revoked without further action, and no subsequent powers of
attorney and proxies may be given nor any subsequent written consents executed
(and, if given or executed, will not be deemed effective). The designees of
Purchaser will, with respect to Shares (and such other Shares and securities)
for which such appointment is effective, be empowered to exercise all voting and
other rights of such shareholder as they, in their sole discretion, may deem
proper at any annual or special meeting of the Company's shareholders or any
adjournment or postponement thereof, by written consent in lieu of any such
meeting or otherwise. Purchaser reserves the right to require that, in order for
Shares to be deemed validly tendered, immediately upon Purchaser's payment for
such Shares, Purchaser must be able to exercise full voting and other rights
with respect to such Shares and other securities, including rights in respect of
voting at any meeting of shareholders and acting by written consent.

     Proxies are effective only as to Shares accepted for payment pursuant to
the Offer. The Offer does not constitute a solicitation of proxies, absent a
purchase of Shares, for any meeting of the Company's shareholders. Any
solicitation of proxies will be made only pursuant to separate proxy soliciting
materials complying with the Exchange Act.

     Determination of Validity.  All questions as to the validity, form and
eligibility (including time of receipt) and acceptance for payment of any tender
of Shares will be determined by Purchaser in its sole discretion, which
determination shall be final and binding on all parties. Purchaser reserves the
absolute right

                                        8
<PAGE>   11

to reject any and all tenders determined by it not to be in proper form or the
acceptance for payment of or payment for which may, in the opinion of
Purchaser's counsel, be unlawful. Purchaser also reserves the absolute right to
waive any of the conditions of the Offer (other than the Minimum Condition) or
any defect or irregularity in any tender of Shares of any particular shareholder
whether or not similar defects or irregularities are waived in the case of other
Shares. No tender of Shares will be deemed to have been validly made until all
defects and irregularities have been cured or waived.

     None of Parent, Purchaser, any of their affiliates or assigns, the Dealer
Manager, the Depositary, the Information Agent or any other person will be under
any duty to give notification of any defects or irregularities in tenders or
incur any liability for failure to give any such notification. Purchaser's
interpretation of the terms and conditions of the Offer (including the Letter of
Transmittal and the instructions thereto) will be final and binding on all
parties.

     Purchaser's acceptance for payment of Shares tendered pursuant to any of
the procedures described above will constitute a binding agreement between the
tendering shareholder and Purchaser upon the terms and subject to the conditions
of the Offer.

     4.  WITHDRAWAL RIGHTS.  Except as otherwise provided in this Section 4,
tenders of Shares made pursuant to the Offer are irrevocable. Shares tendered
pursuant to the Offer may be withdrawn at any time on or prior to the Expiration
Date and, unless previously accepted for payment by Purchaser pursuant to the
Offer, may also be withdrawn at any time after August 13, 1999.

     If Purchaser extends the Offer, is delayed in its acceptance for payment of
Shares, or is unable to purchase Shares validly tendered pursuant to the Offer
for any reason, then without prejudice to Purchaser's rights under the Offer,
the Depositary may nevertheless, on behalf of Purchaser, retain tendered Shares,
and such Shares may not be withdrawn except to the extent that tendering
shareholders are entitled to withdrawal rights as described in this Section 4.
Any such delay in acceptance for payment will be accompanied by an extension of
the Offer to the extent required by law.

     For a withdrawal to be effective, a written or facsimile transmission
notice of withdrawal must be timely received by the Depositary at one of its
addresses or facsimile numbers set forth on the back cover of this Offer to
Purchase. Any notice of withdrawal must specify the name of the person who
tendered Shares to be withdrawn, the number of Shares to be withdrawn and the
name of the registered shareholder, if different from that of the person who
tendered such Shares. If Share Certificates to be withdrawn have been delivered
or otherwise identified to the Depositary, then, prior to the physical release
of such certificates, the serial numbers shown on such certificates must be
submitted to the Depositary, and the signature on the notice of withdrawal must
be guaranteed by an Eligible Institution unless such Shares have been tendered
for the account of an Eligible Institution. If Shares have been tendered
pursuant to the procedure for book-entry transfer as set forth in Section 3, any
notice of withdrawal must specify the name and number of the account at the
Book-Entry Transfer Facility to be credited with the withdrawn Shares and
otherwise comply with the Book-Entry Transfer Facility's procedures.

     Withdrawals of Shares may not be rescinded. Any Shares properly withdrawn
will thereafter be deemed not to have been validly tendered for purposes of the
Offer. However, withdrawn Shares may be re-tendered at any time prior to the
Expiration Date by following one of the procedures described in Section 3.

     All questions as to the form and validity (including time of receipt) of
any notice of withdrawal will be determined by Purchaser, in its sole
discretion, whose determination will be final and binding on all parties. None
of Parent, Purchaser, any of their affiliates or assigns, the Dealer Manager,
the Depositary, the Information Agent or any other person will be under any duty
to give notification of any defects or irregularities in any notice of
withdrawal or incur any liability for failure to give any such notification.

     5.  CERTAIN FEDERAL INCOME TAX CONSEQUENCES.  The following summary is a
general discussion of certain of the expected Federal income tax consequences of
the Offer. The summary is based on the Internal Revenue Code of 1986, as amended
(the "Code"), and published regulations, rulings and judicial decisions in
effect at the date of this Offer to Purchase, all of which are subject to
change. The summary does not discuss all aspects of Federal income taxation that
may be relevant to a particular holder in light of his or her personal

                                        9
<PAGE>   12

circumstances or to certain types of holders subject to special treatment under
the Federal income tax laws, such as life insurance companies, financial
institutions, tax-exempt organizations and non-U.S. persons. The following
summary may not be applicable with respect to Shares acquired through exercise
of employee stock options or otherwise as compensation. It also does not discuss
any aspects of state or local tax laws or of tax laws of jurisdictions outside
the United States of America.

     THE DESCRIPTION OF FEDERAL INCOME TAX CONSEQUENCES SET FORTH BELOW IS FOR
GENERAL INFORMATION ONLY. HOLDERS ARE URGED TO CONSULT THEIR TAX ADVISORS AS TO
THE PARTICULAR TAX CONSEQUENCES TO THEM OF THE SALE OF THEIR SHARES, INCLUDING
THE APPLICATION OF FEDERAL, STATE, LOCAL AND FOREIGN TAX LAWS AND POSSIBLE
CHANGES IN TAX LAWS.

     Sales of Shares in response to the Offer will be taxable transactions for
Federal income tax purposes under the Code, and may also be taxable transactions
under applicable state, local, foreign and other tax laws. For Federal income
tax purposes, a tendering shareholder will generally recognize gain or loss
equal to the difference between the amount of cash received by the shareholder
upon sale of the Shares and the shareholder's tax basis in the Shares that are
sold. Under present law, gain or loss will be calculated separately for each
block of Shares tendered and purchased pursuant to the Offer.

     If tendered Shares are held by a tendering shareholder as capital assets,
gain or loss recognized by the tendering shareholder will be capital gain or
loss, which will be long-term capital gain or loss if the tendering
shareholder's holding period for the Shares exceeds one year. For noncorporate
shareholders, including individuals, estates and trusts, net capital gain (the
excess of net long-term capital gain over net short-term capital loss) currently
is taxed at a maximum Federal income tax rate of 20%. (Tendering shareholders
subject to the "alternative minimum tax" may be subject to higher effective tax
rates on their long-term capital gains). Short-term capital gain recognized by
an individual will generally be taxed at the individual's ordinary income tax
rate. Capital gains recognized by a tendering corporate shareholder will be
taxed at a maximum Federal marginal rate of 35%.

     A shareholder that tenders Shares may be subject to 31% backup withholding
unless the shareholder provides the Depositary (as payer) with such
shareholder's correct Taxpayer Identification Number ("TIN") on Substitute Form
W-9, included as part of the Letter of Transmittal. If the tendering shareholder
is an individual, the TIN is his or her social security number. Certain
shareholders (including, among others, all corporations and certain foreign
individuals) are not subject to these backup withholding and reporting
requirements. In order for a foreign individual to qualify as an exempt
recipient, such shareholder must submit to the Depositary a properly completed
IRS Form W-8, signed under penalty of perjury, attesting to that individual's
exempt status. Exempt shareholders, other than foreign individuals, should file
a Substitute Form W-9 certifying the shareholder's exempt status in order to
avoid backup withholding. A shareholder that does not furnish its correct TIN to
the Depositary, or otherwise establish a basis for exemption from backup
withholding, may be subject to a penalty imposed by the Internal Revenue Service
("IRS").

     If backup withholding applies to a shareholder, the Depositary is required
to withhold 31% from payments to such shareholder. Backup withholding is not an
additional tax. Rather, the amount of the backup withholding can be credited
against the Federal income tax liability of the person subject to the backup
withholding, provided that the required information is given to the IRS. If
backup withholding results in an overpayment of tax, a refund can be obtained by
the shareholder upon filing an income tax return.

       6.  FAIRNESS OF THE TRANSACTION.  Purchaser understands that, in making
their decision to approve the Merger Agreement and the Offer, the Unaffiliated
Directors considered the following factors, which, in the view of the
Unaffiliated Directors, when taken together, supported such decision: (i) the
conclusions and recommendations of the Special Committee; (ii) the factors
referred to below as having been taken into account by the Special Committee;
and (iii) the fact that the $37.00 per Share Offer Price and the terms and
conditions of the Merger Agreement were the result of extensive discussion
between the Special Committee and Parent.

     The Unaffiliated Directors, including the members of the Special Committee,
believe that the Offer and the Merger are procedurally fair because, among other
things: (i) the Special Committee consisted of

                                       10
<PAGE>   13

Unaffiliated Directors appointed to represent the interests of the shareholders
other than Shares held by Parent and its affiliates; (ii) the Special Committee
was advised by BT Alex. Brown and Warburg Dillon Read as its independent
financial advisors to assist it in evaluating the financial aspects of the
proposal made by Merck KGaA; (iii) the Minimum Condition (which may not be
waived without the consent of the Company) has the effect of requiring the
holders of a majority of the Shares (other than Parent and its affiliates) to
tender their Shares in response to the Offer in order for it to be consummated;
(iv) of the process of the deliberations pursuant to which the Special Committee
evaluated the Offer and the Merger and alternatives thereto; (v) of the fact
that the $37.00 per Share price and the other terms and conditions of the Merger
Agreement resulted from extensive discussions between representatives of the
Special Committee, on the one hand, and representatives of Merck KGaA, on the
other; and (vi) of the availability of dissenters' rights to the public
shareholders under the PBCL.

     The Unaffiliated Directors and the Special Committee recognized that the
Merger was not structured to require the approval of a majority of the
shareholders of the Company other than Parent and its affiliates, that Parent
and its affiliates currently hold 49.89% of the Shares, all of which Shares will
be voted to approve and adopt the Merger Agreement and that, because (i)
pursuant to the Shareholder Agreement each Share Tender Party has agreed to vote
the Shares beneficially owned by him in favor of the Merger and the Merger
Agreement and to tender his Shares pursuant to the Offer and (ii) each of the
directors and executive officers of the Company has indicated that he or she
intends to tender his or her Shares in response to the Offer or, in certain
circumstances, to vote in favor of the Merger, if the Minimum Condition is
fulfilled, Purchaser will have sufficient voting power to approve and adopt the
Merger Agreement without the vote of any other shareholder. However, the Special
Committee and the Unaffiliated Directors also recognized that, since (x) it is a
condition to the Merger that Parent shall have purchased all Shares validly
tendered and not withdrawn pursuant to the Offer, and (y) it is a condition
(which may be waived only with the consent of the Company) to the consummation
of the Offer that there be validly tendered and not withdrawn at least a
majority of the issued and outstanding Shares without regard to the Shares owned
by Parent and its affiliates (i.e., the Minimum Condition), the Merger is
effectively conditioned on satisfaction of the Minimum Condition.

     The Unaffiliated Directors, including the members of the Special Committee,
evaluated the Offer and the Merger in light of their knowledge of the business,
financial condition and prospects of the Company and after consultation with the
Company's legal and financial advisors. In light of the number and variety of
factors that the Unaffiliated Directors and the Special Committee considered in
connection with their evaluations of the Offer and the Merger, Parent has been
informed that neither the Unaffiliated Directors nor the Special Committee found
it practicable to assign relative weights to the foregoing factors, and,
accordingly, neither the Unaffiliated Directors nor the Special Committee did
so.

  Opinion of BT Alex. Brown Incorporated.  The Company engaged BT Alex. Brown
Incorporated (now merged with Deutsche Bank Securities Inc., and known as
Deutsche Banc Alex. Brown) to act as co-financial advisor to the Company in
connection with the Offer and the Merger. On June 8, 1999, at a meeting of the
Company's Board (at which only the Unaffiliated Directors were present) and
Special Committee held to evaluate the proposed Offer and Merger, BT Alex. Brown
rendered an oral opinion, which opinion was subsequently confirmed by delivery
of a written opinion dated June 8, 1999, to the effect that, as of that date and
based upon and subject to matters stated in its opinion, the $37.00 per Share
cash consideration to be received in the Offer and the Merger by the holders of
Shares (other than Merck KGaA and its affiliates) was fair, from a financial
point of view, to such holders.

     The full text of BT Alex. Brown's written opinion dated June 8, 1999, which
describes the assumptions made, matters considered and limitations of the review
undertaken, is attached as Schedule II to this document and is incorporated
herein by reference. BT ALEX. BROWN'S OPINION IS DIRECTED TO THE COMPANY'S BOARD
AND SPECIAL COMMITTEE, ADDRESSES ONLY THE FAIRNESS OF THE CASH CONSIDERATION TO
BE RECEIVED IN THE OFFER AND THE MERGER BY THE HOLDERS OF SHARES (OTHER THAN
MERCK KGaA AND ITS AFFILIATES) FROM A FINANCIAL POINT OF VIEW, DOES NOT ADDRESS
THE MERITS OF THE UNDERLYING DECISION BY THE COMPANY TO ENGAGE IN THE OFFER AND
THE MERGER, AND DOES NOT CONSTITUTE A RECOMMENDATION TO ANY SHAREHOLDER AS TO
WHETHER OR NOT SUCH SHAREHOLDER SHOULD TENDER SHARES IN THE OFFER OR HOW SUCH
SHAREHOLDER SHOULD VOTE WITH RESPECT TO MATTERS

                                       11
<PAGE>   14

RELATING TO THE PROPOSED MERGER. The summary of BT Alex. Brown's opinion
described below is qualified in its entirety by reference to the full text of
its opinion.

     In connection with BT Alex. Brown's role as the Company's financial
advisor, and in arriving at its opinion, BT Alex. Brown:

     - reviewed publicly available financial and other information concerning
       the Company and internal analyses and other information furnished to or
       discussed with BT Alex. Brown by the Company and its advisors;

     - held discussions with members of the senior management of the Company
       regarding the business and prospects of the Company;

     - reviewed the reported prices and trading activity for the Shares;

     - compared financial and stock market information for the Company with
       similar information for other companies whose securities are publicly
       traded;

     - reviewed the financial terms of recent business combinations which BT
       Alex. Brown deemed comparable in whole or in part;

     - reviewed the terms of the Merger Agreement; and

     - performed other studies and analyses and considered other factors as BT
       Alex. Brown deemed appropriate.

     BT Alex. Brown did not assume responsibility for independent verification
of, and did not independently verify, any information, whether publicly
available or furnished to BT Alex. Brown, concerning the Company, including,
without limitation, any financial information, forecasts or projections
considered in connection with the rendering of its opinion. For purposes of its
opinion, BT Alex. Brown assumed and relied upon the accuracy and completeness of
all information it reviewed. BT Alex. Brown did not conduct a physical
inspection of any of the properties or assets, and did not prepare or obtain any
independent evaluation or appraisal of any of the assets or liabilities, of the
Company. With respect to the financial forecasts and projections made available
to BT Alex. Brown and used in its analyses, BT Alex. Brown assumed that they
were reasonably prepared on bases reflecting the best currently available
estimates and judgments as to the matters covered thereby. In rendering its
opinion, BT Alex. Brown expressed no view as to the reasonableness of the
forecasts and projections or the assumptions on which they are based. BT Alex.
Brown's opinion was necessarily based upon economic, market and other conditions
existing on, and the information made available to BT Alex. Brown as of, the
date of its opinion.

     For purposes of rendering its opinion, BT Alex. Brown assumed that, in all
respects material to its analysis, the representations and warranties of the
Company, Parent and Purchaser contained in the Merger Agreement are true and
correct; the Company, Parent and Purchaser will each perform all of the
covenants and agreements to be performed by it under the Merger Agreement; and
all conditions to the obligations of each of the Company, Parent and Purchaser
to consummate the Offer and the Merger will be satisfied without any waiver. BT
Alex. Brown also assumed that all material governmental, regulatory or other
approvals and consents required in connection with the consummation of the Offer
and the Merger will be obtained and that in connection with obtaining any
necessary governmental, regulatory or other approvals and consents, or any
amendments, modifications or waivers to any agreements, instruments or orders to
which either the Company, Parent and Purchaser is a party or is subject or by
which it is bound, no limitations, restrictions or conditions will be imposed or
amendments, modifications or waivers made that would have a material adverse
effect on the Company or materially reduce the contemplated benefits of the
Offer and the Merger to the Company. In connection with its opinion, BT Alex.
Brown was not requested to, and did not, solicit third party indications of
interest with respect to the acquisition of all or a part of the Company. No
other instructions or limitations were imposed by the Unaffiliated Directors or
Special Committee upon BT Alex. Brown with respect to the investigations made or
the procedures followed by it in rendering its opinion.

                                       12
<PAGE>   15

     The following is a summary of the material analyses performed by BT Alex.
Brown in connection with its opinion to the Company's Board and Special
Committee dated June 8, 1999. THE FINANCIAL ANALYSES SUMMARIZED BELOW INCLUDE
INFORMATION PRESENTED IN TABULAR FORMAT. IN ORDER TO FULLY UNDERSTAND BT ALEX.
BROWN'S FINANCIAL ANALYSES, THE TABLES MUST BE READ TOGETHER WITH THE TEXT OF
EACH SUMMARY. THE TABLES ALONE DO NOT CONSTITUTE A COMPLETE DESCRIPTION OF THE
FINANCIAL ANALYSES. CONSIDERING THE DATA SET FORTH BELOW WITHOUT CONSIDERING THE
FULL NARRATIVE DESCRIPTION OF THE FINANCIAL ANALYSES, INCLUDING THE
METHODOLOGIES AND ASSUMPTIONS UNDERLYING THE ANALYSES, COULD CREATE A MISLEADING
OR INCOMPLETE VIEW OF BT ALEX. BROWN'S FINANCIAL ANALYSES.

  Analysis of Selected Public Companies.  BT Alex. Brown compared financial and
stock market information for the Company and the following seven selected
publicly held companies in the distribution industry:

     - Arrow Electronics, Inc.

     - Corporate Express, Inc.

     - Henry Schein, Inc.

     - Owens & Minor, Inc.

     - Patterson Dental Company

     - PSS World Medical, Inc.

     - W.W. Grainger, Inc.

     BT Alex. Brown reviewed adjusted market values, calculated as equity market
value, plus debt, less cash, as multiples of latest 12 months earnings before
interest, taxes, depreciation and amortization, and earnings before interest and
taxes, and equity market values as a multiple of latest 12 months and estimated
calendar year 1999 and 2000 net income. All multiples were based on closing
stock prices on June 4, 1999. Estimated financial data for the selected
companies were based on publicly available research analysts' estimates and
estimated financial data for the Company were based both on publicly available
research analysts' estimates and internal estimates of the management of the
Company. This analysis indicated the following implied adjusted market value and
equity market value multiples for the selected companies, as compared to the
following implied multiples for the Company based on the cash consideration in
the Offer and the Merger of $37.00 per Share:

<TABLE>
<CAPTION>
                                                                IMPLIED MULTIPLES
                                                                   OF SELECTED
                                                                    COMPANIES           MULTIPLES FOR THE
                                                              ----------------------    COMPANY IMPLIED BY
                                                              MEAN         RANGE        CASH CONSIDERATION
                                                              -----    -------------    ------------------
<S>                                                           <C>      <C>              <C>
ADJUSTED MARKET VALUES:

Latest 12 months earnings before interest, taxes,
  depreciation and amortization.............................   10.0x    7.9x - 13.8x           12.9x
Latest 12 months earnings before interest and taxes.........   12.2x    9.5x - 15.3x           17.0x

EQUITY MARKET VALUES:
Latest 12 months net income.................................   18.3x   13.2x - 25.1x           32.2x
Estimated calendar year 1999 net income (research analysts'
  estimates)................................................   16.0x   12.0x - 21.4x           27.0x
Estimated calendar year 2000 net income (research analysts'
  estimates)................................................   13.1x    9.6x - 19.2x           22.9x
Estimated calendar year 1999 net income (management
  estimates)................................................   16.0x   12.0x - 21.4x           22.5x
Estimated calendar year 2000 net income (management
  estimates)................................................   13.1x    9.6x - 19.2x           16.2x
</TABLE>

                                       13
<PAGE>   16

     Analysis of Selected Precedent Transactions.  BT Alex. Brown reviewed the
purchase prices and implied transaction multiples in the following eight
selected transactions in the distribution industry, with particular focus on the
acquisition of Fisher Scientific International, Inc. by Thomas H. Lee Co.:

<TABLE>
<CAPTION>
                    ACQUIROR                                    TARGET
                    --------                                    ------
<S>  <C>                                        <C>
- -    Georgia-Pacific Corporation                Unisource Worldwide, Inc.
- -    Cardinal Health, Inc.                      Allegiance Corporation
- -    The Cypress Group L.L.C.                   WESCO Distribution, Inc.
- -    Invacare Corporation                       Suburban Ostomy Supply Co., Inc.
- -    Henry Schein, Inc.                         Sullivan Dental Products, Inc.
- -    Thomas H. Lee Co.                          Fisher Scientific International, Inc.
- -    McKesson Corporation                       General Medical, Inc.
- -    VWR Scientific Products Corporation        Baxter International Inc. (industrial
                                                distribution business)
</TABLE>

BT Alex. Brown reviewed adjusted market values in the selected transactions as
multiples of latest 12 months earnings before interest, taxes, depreciation and
amortization, and earnings before interest and taxes, and equity market values
as a multiple of latest 12 months net income and forward net income. All
multiples were based on publicly available information at the time of
announcement of the relevant transaction. This analysis indicated the following
implied adjusted market value and equity market value multiples for the selected
transactions, as compared to the following implied multiples for the Company
based on the cash consideration in the Offer and the Merger of $37.00 per Share:

<TABLE>
<CAPTION>
                                                       IMPLIED MULTIPLES
                                                          OF SELECTED
                                                         TRANSACTIONS               IMPLIED          MULTIPLES FOR THE
                                                    -----------------------       MULTIPLES OF       COMPANY IMPLIED BY
                                                    MEAN         RANGES        FISHER TRANSACTION    CASH CONSIDERATION
                                                    -----     -------------    ------------------    ------------------
<S>                                                 <C>       <C>              <C>                   <C>
ADJUSTED MARKET VALUES:

Latest 12 months earnings before interest, taxes,
  depreciation and amortization...................   12.7x     8.9x - 18.7x            8.9x                 12.9x
Latest 12 months earnings before interest and
  taxes...........................................   16.5x     9.7x - 24.0x           12.8x                 17.0x

EQUITY MARKET VALUES:
Latest 12 months net income.......................   31.5x    16.6x - 44.2x           23.4x                 32.2x
Forward net income (research analysts'
  estimates)......................................   23.7x    15.4x - 36.9x           17.2x                 25.1x
Forward net income (management estimates).........   23.7x    15.4x - 36.9x           17.2x                 19.3x
</TABLE>

     Discounted Cash Flow Analysis.  BT Alex. Brown performed a discounted cash
flow analysis to estimate the present value of the unlevered, after-tax free
cash flows that the Company could generate for the fiscal years 1999 through
2003, based both on internal estimates of the management of the Company and on
publicly available research analysts' estimates. The range of estimated terminal
values for the Company was calculated by applying terminal value multiples
ranging from 8.0x to 10.0x to the Company's projected fiscal year 2003 earnings
before interest, taxes, depreciation and amortization. The present value of the
cash flows and terminal values were calculated using discount rates ranging from
12.0% to 14.0%. This analysis yielded the following implied equity reference
ranges for the Company, as compared to the cash consideration in the Offer and
the Merger of $37.00 per Share:

<TABLE>
<CAPTION>
IMPLIED PER SHARE EQUITY                                            PER SHARE
REFERENCE RANGE FOR THE COMPANY                                 CASH CONSIDERATION
- -------------------------------                                 ------------------
<S>                                                             <C>
$24.75 - $34.75                                                       $37.00
  (research analysts' estimates)
$28.72 - $39.90
  (management estimates)
</TABLE>

     Premiums Analysis.  BT Alex. Brown reviewed the premiums paid in 96
selected transactions, including eight selected transactions discussed above in
"Analysis of Selected Precedent Transactions," 24 selected transactions effected
since January 1, 1995 in which the acquiror had a 20% to 50% ownership in the
target company prior to the transaction and increased its ownership to 90% or
greater following the transaction, and

                                       14
<PAGE>   17

64 selected transactions effected since January 1, 1994 having transaction
values of between $1.0 billion and $1.5 billion. BT Alex. Brown analyzed the
premiums in these transactions based on the target company's stock price one
day, one month and three months prior to public announcement of the transaction
as compared to the implied premiums for the Company in the Offer and the Merger
based on the stock price for the Shares as of June 4, 1999 and one month and
three months prior to June 4, 1999. This analysis indicated the following
premiums in the selected transactions, as compared to the premiums implied for
the Company in the Offer and the Merger:

<TABLE>
<CAPTION>
                                       PREMIUM                   PREMIUM                  PREMIUM
                                   ONE DAY PRIOR TO        ONE MONTH PRIOR TO      THREE MONTHS PRIOR TO
                                 PUBLIC ANNOUNCEMENT       PUBLIC ANNOUNCEMENT      PUBLIC ANNOUNCEMENT
                               ------------------------  -----------------------  ------------------------
                               MEAN         RANGE        MEAN         RANGE       MEAN         RANGE
                               ----    ----------------  ----    ---------------  ----    ----------------
<S>                            <C>     <C>               <C>     <C>              <C>     <C>
Selected Transactions(8).....  28.6%      8.0% -  67.2%  36.4%    13.3% -  66.2%  32.7%   (28.3)% -  84.6%
Selected Transactions(24)....  30.8%      3.2% - 118.6%  32.4%     4.2% - 104.0%  42.6%    (9.7)% - 201.9%
Selected Transactions(64)....  29.5%   (13.9)% - 118.5%  41.2%   (9.7)% - 130.7%  46.1%   (27.7)% - 164.9%
</TABLE>

<TABLE>
<CAPTION>
                                  PREMIUM                     PREMIUM                      PREMIUM
                             ONE DAY PRIOR TO           ONE MONTH PRIOR TO          THREE MONTHS PRIOR TO
                            PUBLIC ANNOUNCEMENT         PUBLIC ANNOUNCEMENT          PUBLIC ANNOUNCEMENT
                         -------------------------  ---------------------------  ---------------------------
<S>                      <C>                        <C>                          <C>
Fisher Transaction.....            27.4%                       30.8%                        5.8%
</TABLE>

<TABLE>
<CAPTION>
                                                                       PREMIUM                 PREMIUM
                                                 PREMIUM AS OF    ONE MONTH PRIOR TO    THREE MONTHS PRIOR TO
                                                 JUNE 4, 1999        JUNE 4, 1999           JUNE 4, 1999
                                                 -------------    ------------------    ---------------------
<S>                                              <C>              <C>                   <C>
Premium Implied for the Company in the Offer
  and Merger...................................       32.1%              41.0%                  57.0%
</TABLE>

     Other Factors.  In rendering its opinion, BT Alex. Brown also reviewed and
considered, among other things:

     - historical and projected financial data for the Company;

     - historical market prices and trading volumes for the Shares and the
       relationship between movements in the Shares, movements in the common
       stock of selected companies and movements in the S&P 500 Index;

     - selected published analysts' reports, including analysts' estimates as to
       the earnings per share of the Company; and

     - a shareholder profile of the Company and business and financial profile
       of Merck KGaA.

     The above summary is not a complete description of the opinion of BT Alex.
Brown to the Company's Board and Special Committee or the financial analyses
performed and factors considered by BT Alex. Brown in connection with its
opinion. A copy of BT Alex. Brown's written presentation to the Company's Board
and Special Committee in connection with its opinion has been filed as an
exhibit to the Rule 13e-3 Transaction Statement on Schedule 13E-3 filed by Merck
KGaA, Parent and Purchaser with the Securities and Exchange Commission and will
be available for inspection and copying at the principal executive offices of
the Company during regular business hours by any interested shareholder of the
Company or representative of such shareholder who has been so designated in
writing and may be inspected and copied, and obtained from the EDGAR Database
accessible through the Commission's Website (http://www.sec.gov/index.html) or
by mail, from the Commission.

     The preparation of a fairness opinion is a complex analytic process
involving various determinations as to the most appropriate and relevant methods
of financial analyses and the application of those methods to the particular
circumstances and, therefore, a fairness opinion is not readily susceptible to
summary description. BT Alex. Brown believes that its analyses and the summary
above must be considered as a whole and that selecting portions of its analyses
and factors or focusing on information presented in tabular format, without
considering all analyses and factors or the narrative description of the
analyses, could create a misleading or incomplete view of the processes
underlying BT Alex. Brown analyses and opinion.

                                       15
<PAGE>   18

     In performing its analyses, BT Alex. Brown considered industry performance,
general business, economic, market and financial conditions and other matters
existing as of the date of its opinion, many of which are beyond the control of
the Company. No company, transaction or business used in such analyses as a
comparison is identical to the Company or the Offer or Merger, nor is an
evaluation of the results of those analyses entirely mathematical; rather, the
analyses involve complex considerations and judgments concerning financial and
operating characteristics and other factors that could affect the acquisition,
public trading or other values of the companies, business segments or
transactions being analyzed. The estimates contained in BT Alex. Brown's
analyses and the ranges of valuations resulting from any particular analysis are
not necessarily indicative of actual values or future results, which may be
significantly more or less favorable than those suggested by its analyses. In
addition, analyses relating to the value of businesses or securities do not
purport to be appraisals or to reflect the prices at which businesses or
securities actually may be sold. Accordingly, BT Alex. Brown's analyses and
estimates are inherently subject to substantial uncertainty.

     The type and amount of consideration payable in the Offer and the Merger
was determined through extensive discussions between the Company and Merck KGaA.
Although BT Alex. Brown provided financial advice to the Company during the
course of discussions, the decision to enter into the transaction was solely
that of the Unaffiliated Directors and Special Committee. BT Alex. Brown's
opinion and financial analyses were only one of many factors considered by the
Unaffiliated Directors and Special Committee in their evaluation of the Offer
and the Merger and should not be viewed as determinative of the views of the
Unaffiliated Directors, Special Committee or management with respect to the
Offer or the Merger or the consideration payable in the Offer and the Merger.

     BT Alex. Brown is an internationally recognized investment banking firm
and, as a customary part of its investment banking business, is engaged in the
valuation of businesses and their securities in connection with mergers and
acquisitions, negotiated underwritings, private placements and valuations for
estate, corporate and other purposes. The Company selected BT Alex. Brown based
on BT Alex. Brown's reputation, expertise and familiarity with the Company. BT
Alex. Brown and its affiliates have in the past provided financial services to
the Company and Merck KGaA unrelated to the Offer and Merger, for which services
BT Alex. Brown and its affiliates have received compensation.

     In the ordinary course of business, BT Alex. Brown and its successors and
affiliates may actively trade or hold the securities and other instruments and
obligations of the Company and Merck KGaA for their own account and for the
accounts of customers and, accordingly, may at any time hold a long or short
position in such securities, instruments or obligations.

     Pursuant to the terms of BT Alex. Brown's engagement, the Company has
agreed to pay BT Alex. Brown for its services an aggregate financial advisory
fee of $4,575,000. A portion of such fee was payable upon delivery by BT Alex.
Brown of its opinion, with the balance payable upon completion of the Merger. In
addition, the Company has agreed to reimburse BT Alex. Brown for its travel and
other out-of-pocket expenses, including fees and disbursements of counsel, and
to indemnify BT Alex. Brown and related parties against liabilities, including
liabilities under the federal securities laws, relating to, or arising out of,
its engagement.

  Opinion of Warburg Dillon Read LLC.  On June 8, 1999, at a meeting of the
Company's Board (at which only the Unaffiliated Directors were present) and the
Special Committee, Warburg Dillon Read rendered its oral opinion to the
Unaffiliated Directors and Special Committee that, as of that date, and subject
to various assumptions, matters considered and limitations set forth in its
opinion, the $37.00 per Share cash consideration to be received in the Offer and
the Merger by the holders of Shares (other than Merck KGaA and its affiliates)
pursuant to the Merger Agreement was fair, from a financial point of view, to
such holders. Warburg Dillon Read's oral opinion was subsequently confirmed by
delivery of a written opinion dated June 8, 1999.

     The full text of Warburg Dillon Read's opinion sets forth, among other
things, the assumptions made, procedures followed, matters considered and
limitations on the review undertaken by Warburg Dillon Read. This opinion is
attached as Schedule III to this document and is incorporated in this document
by reference.

                                       16
<PAGE>   19

WARBURG DILLON READ'S OPINION IS DIRECTED ONLY TO THE FAIRNESS, FROM A FINANCIAL
POINT OF VIEW, OF THE CASH CONSIDERATION TO BE RECEIVED IN THE OFFER AND THE
MERGER BY THE HOLDERS OF SHARES (OTHER THAN MERCK KGaA AND ITS AFFILIATES) AND
DOES NOT CONSTITUTE A RECOMMENDATION TO ANY HOLDER OF SHARES AS TO WHETHER OR
NOT SUCH HOLDER SHOULD TENDER SHARES IN THE OFFER OR HOW SUCH HOLDER SHOULD VOTE
WITH RESPECT TO MATTERS RELATING TO THE PROPOSED MERGER. Holders of Shares are
urged to read this opinion in its entirety. The summary of Warburg Dillon Read's
opinion described below is qualified in its entirety by reference to the full
text of its opinion.

     In arriving at its opinion, Warburg Dillon Read, among other things:

     - reviewed publicly available business and historical financial information
       relating to the Company;

     - reviewed internal financial information and other data relating to the
       business and financial prospects of the Company, including estimates and
       financial forecasts prepared by the management of the Company and not
       publicly available;

     - conducted discussions with members of the senior management of the
       Company;

     - reviewed publicly available financial and stock market data with respect
       to other companies in lines of business which Warburg Dillon Read
       believed to be generally comparable to those of the Company and Chemdex
       Corporation, an entity in which the Company has an equity interest;

     - compared the financial terms of the Offer and the Merger with the
       publicly available financial terms of other transactions which Warburg
       Dillon Read believed to be generally relevant;

     - reviewed the Merger Agreement; and

     - conducted other financial studies, analyses and investigations, and
       considered other information, as Warburg Dillon Read deemed necessary or
       appropriate.

     In connection with its review, with the Company's consent, Warburg Dillon
Read did not assume any responsibility for independent verification of any of
the information provided to or reviewed by Warburg Dillon Read for the purpose
of its opinion and, with the Company's consent, relied on such information being
complete and accurate in all material respects. In addition, at the Company's
direction, Warburg Dillon Read did not make an independent evaluation or
appraisal of any of the assets or liabilities, contingent or otherwise, of the
Company, nor was Warburg Dillon Read furnished with any evaluation or appraisal.
With respect to the financial forecasts and estimates reviewed by Warburg Dillon
Read, Warburg Dillon Read assumed, at the direction of the Company, that they
were reasonably prepared on bases reflecting the best currently available
estimates and judgments of the management of the Company as to the future
financial performance of the Company. Warburg Dillon Read's opinion is
necessarily based on economic, monetary, market and other conditions existing,
and information available to Warburg Dillon Read, on the date of its opinion. In
connection with its engagement, Warburg Dillon Read was not requested by the
Company to, and Warburg Dillon Read did not, solicit third party indications of
interest with respect to the acquisition of all or a part of the Company. No
other instructions or limitations were imposed by the Unaffiliated Directors or
Special Committee upon Warburg Dillon Read with respect to the investigations
made or the procedures followed by it in rendering its opinion.

     In connection with rendering its opinion to the Company's Board and Special
Committee, Warburg Dillon Read performed a variety of financial analyses which
are summarized below. The following summary does not purport to be a complete
description of all of the analyses performed and factors considered by Warburg
Dillon Read in connection with its opinion. A copy of Warburg Dillon Read's
written presentation to the Company's Board and Special Committee in connection
with its opinion has been filed as an exhibit to the Rule 13e-3 Transaction
Statement on Schedule 13E-3 filed by Merck KGaA, Purchaser and Parent with the
Securities and Exchange Commission and will be available for inspection and
copying at the principal executive offices of the Company during regular
business hours by any interested shareholder of the Company or representative of
such shareholder who has been so designated in writing and may be inspected and
copied, and obtained from the EDGAR Database accessible through the Commission's
Web site (http//www.sec.gov/index.html) or by mail, from the Commission.

                                       17
<PAGE>   20

     Warburg Dillon Read believes that its analyses and the summary below must
be considered as a whole and that selecting portions of its analyses and factors
or focusing on information presented in tabular format, without considering all
analyses and factors or the narrative description of the analyses, could create
a misleading or incomplete view of the processes underlying Warburg Dillon
Read's analyses and opinion. None of the analyses performed by Warburg Dillon
Read was assigned a greater significance by Warburg Dillon Read than any other.
Warburg Dillon Read arrived at its ultimate opinion based on the results of all
the analyses undertaken by it and assessed as a whole. Warburg Dillon Read did
not draw conclusions from or with regard to any one factor or method of
analysis.

     The preparation of a fairness opinion is a complex process involving
subjective judgments and is not necessarily susceptible to a partial analysis or
summary description. With respect to the analysis of selected publicly traded
companies and the analysis of selected transactions summarized below, no company
used as a comparison is either identical or directly comparable to the Company
or the Offer or Merger. These analyses necessarily involve complex
considerations and judgments concerning financial and operating characteristics
and other factors that could affect the acquisition, public trading or
transaction values of the companies or transactions concerned. The estimates of
future performance of the Company provided by the management of the Company in
or underlying Warburg Dillon Read's analyses are not necessarily indicative of
future results of values, which may be significantly more or less favorable than
those estimates. In performing its analyses, Warburg Dillon Read made numerous
assumptions about industry performance, general business and economic conditions
and other matters, many of which are beyond the control of the Company.
Estimates of the financial value of companies do not purport to be appraisals or
necessarily reflect the prices at which companies actually may be sold.

     The type and amount of consideration payable in the Offer and the Merger
was determined through extensive discussions between the Company and Merck KGaA.
Although Warburg Dillon Read provided financial advice to the Company during the
course of discussions, the decision to enter into the transaction was solely
that of the Company's Unaffiliated Directors and Special Committee. Warburg
Dillon Read's opinion and financial analyses were only one of many factors
considered by the Unaffiliated Directors and Special Committee in their
evaluation of the Offer and the Merger and should not be viewed as determinative
of the views of the Unaffiliated Directors, Special Committee or management with
respect to the Offer or the Merger or the consideration payable in the Offer and
the Merger.

     The following is a brief summary of the material analyses performed by
Warburg Dillon Read and reviewed with the Unaffiliated Directors and Special
Committee in connection with its opinion dated June 8, 1999. THE FINANCIAL
ANALYSES SUMMARIZED BELOW INCLUDE INFORMATION PRESENTED IN TABULAR FORMAT. IN
ORDER TO FULLY UNDERSTAND WARBURG DILLON READ'S FINANCIAL ANALYSES, THE TABLES
MUST BE READ TOGETHER WITH THE TEXT OF EACH SUMMARY. THE TABLES ALONE DO NOT
CONSTITUTE A COMPLETE DESCRIPTION OF THE FINANCIAL ANALYSES. CONSIDERING THE
DATA SET FORTH BELOW WITHOUT CONSIDERING THE FULL NARRATIVE DESCRIPTION OF THE
FINANCIAL ANALYSES, INCLUDING THE METHODOLOGIES AND ASSUMPTIONS UNDERLYING THE
ANALYSES, COULD CREATE A MISLEADING OR INCOMPLETE VIEW OF WARBURG DILLON READ'S
FINANCIAL ANALYSES.

  Analysis of Selected Public Companies.  Warburg Dillon Read compared selected
financial information and operating statistics for the Company with
corresponding financial information and operating statistics of the following
eight selected publicly held companies in the distribution industry:

     - Arrow Electronics, Inc.

     - Corporate Express, Inc.

     - Henry Schein, Inc.

     - Fisher Scientific International, Inc.

     - Owens & Minor, Inc.

     - Patterson Dental Company

     - PSS World Medical, Inc.

     - W.W. Grainger, Inc.

                                       18
<PAGE>   21

Warburg Dillon Read reviewed enterprise values, calculated as equity market
value, plus debt, less cash, as multiples of latest 12 months sales, earnings
before interest, taxes, depreciation and amortization, and earnings before
interest and taxes, and equity values as a multiple of estimated calendar year
1999 price-to-earnings and price-to-earnings to five-year estimated earnings per
share. All multiples were based on closing stock prices on June 4, 1999.
Estimated financial data for the selected companies and the Company were based
on publicly available research analysts' estimates. This analysis indicated the
following median implied enterprise value and equity value multiples for the
selected companies, as compared to the following implied multiples for the
Company based on the cash consideration in the Offer and the Merger of $37.00
per Share:

<TABLE>
<CAPTION>
                                                                IMPLIED MULTIPLES      MULTIPLES FOR THE
                                                              OF SELECTED COMPANIES    COMPANY IMPLIED BY
                                                                     MEDIAN            CASH CONSIDERATION
                                                              ---------------------    ------------------
<S>                                                           <C>                      <C>
ENTERPRISE VALUES:
Latest 12 months sales......................................          0.69x                  1.05x
Latest 12 months earnings before interest, taxes,
  depreciation and amortization.............................           9.0x                  12.9x
Latest 12 months earnings before interest and taxes.........          12.6x                  17.0x
EQUITY VALUES:
Estimated calendar year 1999 price-to-earnings (research
  analysts' estimates)......................................          15.8x                  27.2x
Estimated calendar year 1999 price-to-earnings to five-year
  estimated compound annual growth rate for earnings per
  share (research analysts' estimates)......................          0.83x                  1.41x
</TABLE>

       Analysis of Selected Precedent Transactions.  Warburg Dillon Read
reviewed the purchase prices and implied transaction multiples in the following
eight selected transactions in the distribution industry announced since January
1997:

<TABLE>
<CAPTION>
            ACQUIROR                                         TARGET
            --------                                         ------
<S>                               <C>
- - Cardinal Health, Inc.           Allegiance Corporation
- - The Cypress Group L.L.C.        WESCO Distribution, Inc.
- - Invacare Corporation            Suburban Ostomy Supply Co., Inc.
- - Physician Sales & Service,      Gulf South Medical Supply, Inc.
  Inc.
- - Henry Schein, Inc.              Sullivan Dental Products, Inc.
- - Thomas H. Lee Co.               Fisher Scientific International Inc.
- - McKesson Corporation            General Medical, Inc.
- - VWR Scientific Products         Baxter International Inc. (industrial distribution business)
  Corporation
</TABLE>

Warburg Dillon Read reviewed enterprise values in the selected transactions as
multiples of latest 12 months sales, earnings before interest, taxes,
depreciation and amortization, and earnings before interest and taxes, and
equity values as multiples of latest 12 months net income and latest book value.
All multiples were based on publicly available information at the time of
announcement of the relevant transaction. This analysis indicated the following
implied enterprise value and equity value multiples for the selected
transactions, as compared to the following implied multiples for the Company
based on the cash consideration in the Offer and the Merger of $37.00 per Share:

<TABLE>
<CAPTION>
                                                                   IMPLIED MULTIPLES
                                                                 OF SELECTED COMPANIES            MULTIPLES FOR THE
                                                            --------------------------------     COMPANY IMPLIED BY
                                                                RANGE        MEAN     MEDIAN     CASH CONSIDERATION
                                                            -------------    -----    ------    ---------------------
<S>                                                         <C>              <C>      <C>       <C>
ENTERPRISE VALUES:
Latest 12 months sales....................................  0.43x - 2.43x    1.07x    0.96x             1.05x
Latest 12 months earnings before interest, taxes,
  depreciation and amortization...........................  8.8x - 25.0x     13.7x    12.5x             12.9x
Latest 12 months earnings before interest and taxes.......  9.1x - 26.4x     16.4x    14.7x             17.0x
EQUITY VALUES:
Latest 12 months earnings per share.......................  15.5x - 41.6x    27.5x    27.0x             31.9x
Latest book value.........................................   2.8x - 4.8x     3.8x      3.7x              2.8x
</TABLE>

                                       19
<PAGE>   22

     Discounted Cash Flow Analysis.  Warburg Dillon Read performed a discounted
cash flow analysis to estimate the present value of the unlevered, after-tax
free cash flows that the Company could generate based both on internal estimates
of the management of the Company and publicly available research analysts'
estimates. The range of estimated terminal values for the Company was calculated
by applying terminal value multiples ranging from 8.0x to 10.0x to the Company's
projected fiscal year 2003 earnings before interest, taxes, depreciation and
amortization. The present value of the cash flows and terminal values were
calculated using discount rates ranging from 10.5% to 12.5%. This analysis
yielded the following implied equity reference ranges for the Company, as
compared to the cash consideration in the Offer and the Merger of $37.00 per
Share:

<TABLE>
<CAPTION>
IMPLIED PER SHARE EQUITY                                            PER SHARE
REFERENCE RANGE FOR THE COMPANY                                 CASH CONSIDERATION
- -------------------------------                                 ------------------
<S>                                                             <C>
$24.78 - $35.81                                                       $37.00
  (research analysts' estimates)
$28.76 - $41.09
  (management estimates)
</TABLE>

     Premiums Analysis.  Warburg Dillon Read reviewed the premiums paid in 29
selected transactions effected since January 1995 with transaction values
between approximately $56.0 million and $11.0 billion. This analysis indicated
the following premiums in the selected transactions based on the target
company's closing and average stock prices one day, one week, one month and
three months prior to public announcement of the transaction, as compared to the
implied premiums for the Company based on the stock price of the Shares one day,
one week, one month and three months prior to June 4, 1999:

<TABLE>
<CAPTION>
                                                                 PREMIUMS PAID IN SELECTED
                                                                        TRANSACTIONS
                                                              --------------------------------
                                                                 BASED ON          BASED ON
                                                              CLOSING PRICES    AVERAGE PRICES
                                                              --------------    --------------
                                                              MEAN    MEDIAN    MEAN    MEDIAN
                                                              ----    ------    ----    ------
<S>                                                           <C>     <C>       <C>     <C>
One Day Prior to Public Announcement........................   26%      20%      26%      20%
One Week Prior to Public Announcement.......................   29%      27%      24%      23%
One Month Prior to Public Announcement......................   35%      30%      30%      25%
Three Months Prior to Public Announcement...................   43%      41%      34%      29%
</TABLE>

<TABLE>
<CAPTION>
                                                                      PREMIUMS IMPLIED
                                                                      FOR THE COMPANY
                                                              --------------------------------
                                                                 BASED ON          BASED ON
                                                              CLOSING PRICES    AVERAGE PRICES
                                                              --------------    --------------
<S>                                                           <C>               <C>
One Day Prior to June 4, 1999...............................        29%               29%
One Week Prior to June 4, 1999..............................        29%               30%
One Month Prior to June 4, 1999.............................        41%               33%
Three Months Prior to June 4, 1999..........................        57%               49%
</TABLE>

     Other Factors.  In rendering its opinion, Warburg Dillon Read also, among
other things, reviewed and considered historical and projected financial data
for the Company and compared selected financial information and operating
statistics for Chemdex Corporation with corresponding financial information and
operating statistics for selected publicly held companies in the internet
commerce industry.

     Miscellaneous.  The Company has agreed to pay Warburg Dillon Read for its
services an aggregate financial advisory fee of $4,575,000. A portion of such
fee was paid upon the delivery by Warburg Dillon Read of its opinion with the
balance payable upon completion of the Merger. In addition, the Company has
agreed to reimburse Warburg Dillon Read for its travel and other out-of-pocket
expenses, including fees and disbursements of its counsel, and to indemnify
Warburg Dillon Read and related parties against liabilities, including
liabilities under federal securities laws, relating to, or arising out of, its
engagement.

     The Company selected Warburg Dillon Read as a co-financial advisor in
connection with the Offer and the Merger because Warburg Dillon Read is an
internationally recognized investment banking firm with substantial experience
in similar transactions. Warburg Dillon Read is continually engaged in the
valuation of

                                       20
<PAGE>   23

businesses and their securities in connection with mergers and acquisitions,
leveraged buyouts, negotiated underwritings, competitive bids, secondary
distributions of listed and unlisted securities and private placements. In the
past, Warburg Dillon Read and its predecessors have provided investment banking
services to Merck KGaA unrelated to the Offer and Merger and have received
customary compensation for the rendering of such services. In addition, Warburg
Dillon Read's affiliates or parent entity, UBS AG, currently have, or may have
in the future, a banking or financing relationship with the Company and/or Merck
KGaA.

     In the ordinary course of business, Warburg Dillon Read, its successors and
affiliates may actively trade the securities of the Company and Merck KGaA for
their own accounts and the accounts of their customers and, accordingly, may at
any time hold a long or short position in these securities.

     Position of Merck KGaA, Parent and Purchaser regarding Fairness of the
Offer and the Merger.  Merck KGaA, Parent and Purchaser believe that the
consideration to be received by the holders of Shares, pursuant to the Offer and
the Merger, is fair to the holders of Shares. Merck KGaA, Parent and Purchaser
based their belief solely on (i) the fact that the Unaffiliated Directors and
the Special Committee concluded that the Offer and the Merger are fair to, and
in the best interests of, the Company, (ii) the historical and projected
financial performance of the Company and its financial results, (iii) the fact
that the consideration to be paid in the Offer and the Merger represents a
premium of approximately 41% over the closing price one-month prior to June 4,
1999, and a premium of approximately 32% over the reported closing price for the
Shares on June 4, 1999, (iv) the fact that the terms of the Offer and the Merger
and the Merger Agreement were the subject of extensive discussions between the
Special Committee and Merck KGaA and Parent, (v) the fact that the Offer and the
Merger will each provide consideration to the shareholders entirely in cash, and
(vi) notwithstanding the fact that BT Alex. Brown's and Warburg Dillion Read's
opinions were provided solely for the information and assistance of the Special
Committee and that Merck KGaA, Parent and Purchaser are not entitled to rely on
such opinions, the fact that the Special Committee received an opinion from each
of BT Alex. Brown and Warburg Dillion Read as to the fairness, from a financial
point of view, to the holders of Shares (other than Parent and its affiliates)
of the $37.00 per Share cash consideration to be received by such holders in the
Offer and the Merger. Merck KGaA, Parent and Purchaser have reviewed the factors
considered by the Unaffiliated Directors in support of their decision, as
described in the Schedule 14D-9 and above, and had no basis to question their
consideration of or reliance on those factors. Merck KGaA, Parent and Purchaser
found it impracticable to assign, nor did they assign, relative weights to the
individual factors considered in reaching their conclusion as to fairness.

     7.  PRICE RANGE OF SHARES; DIVIDENDS.  The shares trade on the Nasdaq
National Market under the symbol VWRX. The following table sets forth, for the
periods indicated, the high and low bid quotations per Share on the Nasdaq
National Market, as reported by Bloomberg LP.

<TABLE>
<CAPTION>
                                                              HIGH    LOW
                                                              ----    ---
<S>                                                           <C>     <C>
FISCAL YEAR ENDED DECEMBER 31, 1997:
  First Quarter.............................................  $16 3/4 $13
  Second Quarter............................................   16 5/8  14 1/2
  Third Quarter.............................................   22 7/8  15 3/4
  Fourth Quarter............................................   28 1/4  20 3/4
FISCAL YEAR ENDED DECEMBER 31, 1998:
  First Quarter.............................................   36      27 1/2
  Second Quarter............................................   36 1/2  21 3/8
  Third Quarter.............................................   29 3/8  22 15/16
  Fourth Quarter............................................   31 5/16  16 7/8
FISCAL YEAR ENDING DECEMBER 31, 1999:
  First Quarter.............................................   23 3/4  17 7/8
  Second Quarter (through June 8)...........................   31 1/2  22
</TABLE>

     The following table sets forth, for the periods indicated, the closing
sales prices of the Shares on the Nasdaq National Market, as reported by
Bloomberg LP.

                                       21
<PAGE>   24

<TABLE>
<CAPTION>
                                                              HIGH    LOW
                                                              ----    ---
<S>                                                           <C>     <C>
FISCAL YEAR ENDED DECEMBER 31, 1997:
  First Quarter.............................................  $17     $13
  Second Quarter............................................   17      14 1/2
  Third Quarter.............................................   22 7/8  15 3/4
  Fourth Quarter............................................   28 1/2  20 3/4
FISCAL YEAR ENDED DECEMBER 31, 1998:
  First Quarter.............................................   36 1/2  27 19/32
  Second Quarter............................................   39 9/16  21 3/8
  Third Quarter.............................................   29 3/8  23
  Fourth Quarter............................................   31 3/8  17
FISCAL YEAR ENDING DECEMBER 31, 1999:
  First Quarter.............................................   23 7/8  17 7/8
  Second Quarter (through June 8)...........................   31 1/2  22 3/4
</TABLE>

     On June 8, 1999, the last full trading day prior to the public announcement
after the market closing on such date of the execution of the Merger Agreement
and the intention to commence the Offer, the last reported bid quotation of the
Shares reported on the Nasdaq National Market was $27 7/8 per Share and the
closing sales prices was $27 15/16. On June 11, 1999, the last full trading day
before commencement of the Offer, the last reported bid quotation and closing
sales price of the Shares reported on the Nasdaq National Market were each
$36 9/16 per Share. SHAREHOLDERS ARE URGED TO OBTAIN A CURRENT MARKET QUOTATION
FOR THE SHARES.

     No dividends have been paid by the Company on its Shares during the past
three years. The Company's existing credit facility limits the Company's payment
of dividends to its shareholders and there are also restrictions on the ability
of the Company's subsidiaries to pay dividends to the Company. Pursuant to the
Merger Agreement, the Company has agreed, from the date of the Merger Agreement
until the Effective Time, not to declare, pay or set aside any dividend or other
distribution without the prior written consent of Parent.

     8.  CERTAIN INFORMATION CONCERNING THE COMPANY.  The information concerning
the Company contained in this Offer to Purchase, including financial
information, has been taken from publicly available documents and records on
file with the Commission and other public sources and from information furnished
to Purchaser, Parent and Merck KGaA by the Company. None of Purchaser, Parent
nor Merck KGaA assumes any responsibility for the accuracy or completeness of
the information contained in those documents and records, or for any failure by
the Company to disclose events that may have occurred or may affect the
significance or accuracy of any such information but which are unknown to
Purchaser, Parent and Merck KGaA.

     General.  The Company is a Pennsylvania corporation with its principal
offices located at 1310 Goshen Parkway, West Chester, Pennsylvania 19380. The
telephone number of the Company at such offices is (610) 431-1700. According to
the Company's Annual Report for the fiscal year ended December 31, 1998 on Form
10-K, the Company distributes laboratory supplies, chemicals and equipment to
life science, educational and industrial organizations throughout the United
States and Canada. The Company also distributes critical environment
("cleanroom") supplies and apparel to manufacturers of electronics, medical
devices and pharmaceuticals.

     Summary Financial Information.  Set forth below is certain selected
consolidated financial information with respect to the Company taken or derived
from the audited financial statements contained in the Company's Annual Reports
on Form 10-K for the years ended December 31, 1998 and December 31, 1997 (the
"Company 10-Ks"), each as filed by the Company with the Commission. More
comprehensive financial information is included in the Company 10-Ks and the
other documents filed by the Company with the Commission, and the summary
financial information set forth below is qualified in its entirety by reference
to those reports and other documents. Such reports and other documents may be
inspected and copies thereof may be obtained in the manner set forth below under
"Available Information."

                                       22
<PAGE>   25

                      VWR SCIENTIFIC PRODUCTS CORPORATION

                  SELECTED SUMMARY CONSOLIDATED FINANCIAL DATA

<TABLE>
<CAPTION>
                                                              FISCAL YEAR ENDED DECEMBER 31,
                                                         -----------------------------------------
                                                            1998           1997           1996
                                                         -----------    -----------    -----------
                                                         (IN THOUSANDS, EXCEPT PER SHARE AMOUNTS)
<S>                                                      <C>            <C>            <C>
INCOME STATEMENT DATA
  Sales................................................  $1,349,948     $1,244,795     $1,117,286
  Gross margin.........................................     312,177        277,715        246,907
  Net income...........................................      34,248         24,329          7,023
BALANCE SHEET DATA
  Working capital......................................     237,546        182,064        143,975
  Property and equipment -- net........................      91,072         50,846         48,184
  Total assets.........................................     911,589        717,566        705,302
  Short-term debt......................................          --             --         22,500
  Long-term debt.......................................     355,665        232,409        367,965
  Shareholders equity..................................     383,547        342,007        183,437
  Total invested capital...............................  $  739,212     $  574,416     $  573,902
PER SHARE DATA
  Net income per share.................................  $     1.19     $     1.06     $     0.32
  Net income per share on fully diluted basis..........        1.16           1.04           0.32
</TABLE>

     Other Financial Information.  The book value per share for the fiscal year
ended December 31, 1998 was $13.24 and for the three month period ended March
31, 1999, $13.45. The ratio of earnings to fixed charges for the Company in
1998, 1997, and the first quarter of 1999 was 2.7232, 2.0833 and 2.3033,
respectively.

     The Company does not, as a matter of course, make public forecasts or
projections as to future performance, sales, earnings or other income statement
data. However, in connection with Parent's position as a 49.89% beneficial owner
of the Company, and the right of Parent and its affiliates under the Standstill
Agreement to designate persons to serve on the Company's Board of Directors,
Parent has received and examined certain analyses prepared by the Company which
include projections of future financial results. In addition, during the course
of the discussions among Merck KGaA, Parent and the Company that led to the
execution of the Merger Agreement, the Company provided Merck KGaA and Parent
with certain information about the Company and its financial performance which
is not publicly available. Such information has been set forth below for the
limited purpose of giving the Company's shareholders access to financial
projections by the Company's management that were available for review by Merck
KGaA and Parent and their advisers in connection with the Offer.

                                       23
<PAGE>   26

                            VWR SCIENTIFIC PRODUCTS
                                  1999 BUDGET
                  (DOLLARS IN MILLIONS, EXCEPT PER SHARE DATA)

<TABLE>
<CAPTION>
                                                            1998 ACTUAL    1999 BUDGET    % GROWTH
                                                            -----------    -----------    --------
<S>                                                         <C>            <C>            <C>
Net sales.................................................   $1,349.70      $1,507.00       11.6%
Gross margin..............................................       312.5            361       15.4%
                                                                  23.2%          24.0%        .8pt.
Total operating expenses..................................       227.2          258.1       13.6%
%.........................................................        16.8%          17.1%        .3pt.

Earnings before interest and taxes........................        85.4          102.9       20.5%
%.........................................................         6.3%           6.8%        .5pt.

Interest expense..........................................        27.9           30.1        7.9%
Net income................................................   $    34.3      $    43.5       26.8%
                                                             =========      =========      =====
Diluted earnings per share................................   $    1.20      $    1.47       22.5%
                                                             ---------      ---------      -----
Diluted weighted average number of shares.................        28.8           29.7
</TABLE>

                            VWR SCIENTIFIC PRODUCTS
                                  1999 BUDGET
                  (DOLLARS IN MILLIONS, EXCEPT PER SHARE DATA)

<TABLE>
<CAPTION>
                                                  Q1 BUDGET    Q2 BUDGET    Q3 BUDGET    Q4 BUDGET
                                                  ---------    ---------    ---------    ---------
<S>                                               <C>          <C>          <C>          <C>
Net sales.......................................    358.0        380.7        402.1        366.2
Gross margin....................................     83.0         91.6         99.1         87.3
                                                     23.2%        24.1%        24.6%        23.8%

Total operating expenses........................     62.7         64.8         66.9         61.7
%...............................................     17.5%        17.0%        17.1%        16.9%

Earnings before interest and taxes..............     20.3         26.8         30.2         25.5
%...............................................      5.7%         7.0%         7.5%         7.0%

Interest expense................................      7.9          7.7          7.4          7.1
Net income......................................      $7.5       $11.4         $13.6         $11.0
                                                   ======       ======       ======       ======
Diluted earnings per share......................    $0.25         $0.38        $0.46         $0.37
                                                   ------       ------       ------       ------
Diluted weighted average number of shares.......     29.7         29.7         29.7         29.7
</TABLE>

                                       24
<PAGE>   27

                            VWR SCIENTIFIC PRODUCTS
                           1999 BUDGET BALANCE SHEET
                                 (IN THOUSANDS)

<TABLE>
<CAPTION>
                                                        Q1         Q2         Q3         Q4
                                                      -------    -------    -------    -------
<S>                                                   <C>        <C>        <C>        <C>
ASSETS
Receivables.........................................  $230.50    $228.40    $240.90    $207.70
Day sales outstanding...............................       54         52         54         51
Inventories.........................................    146.7      157.4      158.3      145.7
FIFO inventory days.................................       48         49         47         47
Other...............................................       12       11.5         11         12
                                                      -------    -------    -------    -------
Total current.......................................  $ 389.2    $ 397.2    $ 410.2    $ 365.4

Net property........................................     89.9       90.1       89.9       88.5
Other...............................................    450.6      447.5      444.3      441.2
                                                      -------    -------    -------    -------
Total assets........................................  $ 929.7    $ 934.8    $ 944.3    $ 895.0
                                                      =======    =======    =======    =======
LIABILITIES
Checks outstanding..................................  $  10.0    $  10.0    $  10.0    $  10.0
Accounts payable....................................    134.4      141.3      148.2      133.3
                                                      -------    -------    -------    -------
Total current liabilities...........................  $ 144.4    $ 151.3    $ 158.2    $ 143.3

Bank debt...........................................    209.2      196.1      185.2      139.6
Subordinated debt...................................      154        154        154        154

Shareholders' equity................................      397      408.4        422      433.1
                                                      -------    -------    -------    -------
Total liabilities and shareholders' equity..........  $ 929.7    $ 934.8    $ 944.3    $ 895.0
</TABLE>

     The foregoing information was prepared by the Company solely for internal
use and not for publication or with a view to complying with the published
guidelines of the Commission regarding projections or with the guidelines
established by the American Institute of Certified Public Accountants and are
included in this Offer to Purchase only because they were furnished to Merck
KGaA and Parent. The foregoing information is "forward-looking" and inherently
subject to significant uncertainties and contingencies, many of which are beyond
the control of the Company, including industry performance, general business and
economic conditions, changing competition, adverse changes in applicable laws,
regulations or rules governing environmental, tax or accounting matters and
other matters. It is not possible to predict whether the assumptions made in
preparing the foregoing information will be accurate, and actual results may be
materially higher or lower than those described above. The inclusion of this
information should not be regarded as an indication that Parent, Purchaser,
Merck KGaA, the Company or anyone who received this information considered it a
reliable predictor of future events, and this information should not be relied
upon as such. None of Parent, Purchaser, Merck KGaA or the Company assumes any
responsibility for the validity, reasonableness, accuracy or completeness of the
projections and the Company has made no representations to Parent, Purchaser or
Merck KGaA regarding the financial information described above. None of the
Company, Parent, Purchaser, Merck KGaA or any other party intends publicly to
update or otherwise publicly revise the projections even if experience or future
changes make it clear that the projections will not be realized.

     Public Offering.  Pursuant to a prospectus dated November 18, 1997, the
Company made an underwritten public offering of 3,025,000 shares of Common Stock
at an offering price of $22.75 per share, resulting in aggregate proceeds to the
Company of $65,037,500.

     Available Information.  The Company is subject to the reporting
requirements of the Exchange Act and, in accordance therewith, is obligated to
file periodic reports, proxy statements and other information with the
Commission relating to its business, financial condition and other matters.
Certain information as of particular dates concerning the Company's directors
and officers, their remuneration, options granted to them, the principal holders
of the Company's securities and any material interest of such persons in
transactions with the

                                       25
<PAGE>   28

Company is required to be disclosed in such reports and proxy statements and
distributed to the shareholders of the Company and filed with the Commission.
Such reports, proxy statements and other information should be available for
inspection at the public reference facilities of the Commission located at
Judiciary Plaza, 450 Fifth Street, N.W., Washington, D.C. 20549, and should also
be available for inspection and copying at prescribed rates at the regional
offices of the Commission located at Northwest Atrium Center, 500 West Madison
Street, Suite 1400, Chicago, Illinois 60661, and Seven World Trade Center, Suite
1300, New York, New York 10048. Such reports, proxy statements and other
information may also be obtained at the Web site that the Commission maintains
at http://www.sec.gov. Copies of this material may also be obtained by mail,
upon payment of the Commission's customary fees, from the Commission's principal
office at 450 Fifth Street, N.W., Washington, D.C. 20549. In addition, such
material should also be available for inspection at the library of the Nasdaq
National Market System, 1735 K Street, N.W., Washington, D.C. 20006.

     9.  CERTAIN INFORMATION CONCERNING PURCHASER, PARENT, MERCK KGAA AND
CERTAIN RELATED PARTIES. General.  Purchaser, a Pennsylvania corporation and a
wholly owned subsidiary of Parent, was organized on June 8, 1999 in connection
with the transactions contemplated by the Merger Agreement, including the Offer,
and has not carried on any unrelated activities since its organization. The
principal offices of Purchaser are located at 7 Skyline Drive, Hawthorne, NY
10532. The telephone number for Purchaser at such office is (914) 592-4660.

     Parent, a New York corporation, has its principal offices at 7 Skyline
Drive, Hawthorne, NY 10532. The telephone number for Parent at such offices is
(914) 592-4660. Parent is a holding company for Shares of the Company.

     Parent is wholly owned by EM Industries, which has its principal offices at
7 Skyline Drive, Hawthorne, NY 10532, and is 39.8% owned by Merck KGaA and 60.2%
owned by Merck AG, a corporation organized under the laws of Switzerland ("Merck
AG"), which is a holding company and the address of its principal offices is
Gotthard StraSSe 20, CH-4660 Zug, Switzerland. Merck AG is substantially wholly
owned (approximately 99.9%) by Merck KGaA. Merck KGaA is engaged in the
pharmaceutical, laboratory supplies and chemicals business. The address of Merck
KGaA's principal offices is Frankfurter StraSSe 250, D-64293 Darmstadt, Germany.

     Merck KGaA is controlled by E. Merck, which holds a 74% interest in Merck
KGaA. The remaining 26% interest in Merck KGaA is held by public shareholders.
E. Merck is a German general partnership (offene Handelsgesellschaft), with
eight general partners (offene Gesellschafter) and approximately 100 silent
partners (stille Gesellschafter). The general partners of E. Merck constitute
seven of the eight members of the Executive Board of E. Merck. The Executive
Board is responsible for the management of, and controls all business decisions
for, E. Merck. Approval of a nine-member Partners Council of E. Merck is
required for major transactions over a certain monetary amount. No general
partner or silent partner of E. Merck holds 5% or more of the equity interests
in E. Merck.

     The name, citizenship, business address, present principal occupation or
employment and material occupations, positions, offices or employment during the
last five years of each of the directors and executive officers of Purchaser,
Parent and Merck KGaA, and of the general partners and members of the Executive
Board of E. Merck and certain other information are set forth in Schedule I
hereto.

                                       26
<PAGE>   29

     Summary Financial Information -- Parent.  Parent is not subject to the
informational reporting requirements of the Exchange Act and as such, is not
required to file reports, proxy statements or other information with the
Commission. Set forth below is a summary of certain consolidated financial data
with respect to Parent taken or derived from Parent's audited financial
statements for the years ended December 31, 1998, December 31, 1997 and December
31, 1996. Such statements have been prepared in accordance with United States
generally accepted accounting principles ("US GAAP"), except in the case of
unaudited financial statements for normal recurring year-end adjustments.

                         EM LABORATORIES, INCORPORATED

                      SELECTED CONSOLIDATED FINANCIAL DATA

<TABLE>
<CAPTION>
                                                      FISCAL YEAR ENDED DECEMBER 31,
                                                     --------------------------------
                                                       1998        1997        1996
                                                     --------    --------    --------
                                                              (IN THOUSANDS)
<S>                                                  <C>         <C>         <C>
INCOME STATEMENT DATA
  Sales............................................  $      0    $      0    $      0
  Operating income.................................    11,452       7,988       1,622
  Net income.......................................    11,452       7,988       1,622
BALANCE SHEET DATA
  Working capital..................................        11          45          83
  Total assets.....................................   180,375     167,046     116,747
  Total indebtedness...............................         0           0           0
  Shareholders' equity.............................   180,375     167,046     116,747
</TABLE>

     Summary Financial Information -- Merck KGaA.  Merck KGaA is not subject to
the informational reporting requirements of the Exchange Act and, therefore, is
not required to file reports, proxy statements or other information with the
Commission. Set forth below is a summary of certain consolidated financial data
with respect to Merck KGaA taken or derived from Merck KGaA's audited financial
statements for the years ended December 31, 1998, December 31, 1997 and December
31, 1996.

     The financial information set forth below was prepared in accordance with
uniform accounting policies using the International Accounting Standards
Committee's published standards ("IAS"), which differ in certain respects from
US GAAP. Such differences between IAS and US GAAP relate to, among other things,
translation, recognition and measurement criteria. However, Parent believes that
such differences are not material to a decision by a shareholder of the Company
whether to sell, transfer or hold any Shares, since such differences would not
affect the ability of Merck KGaA to provide the necessary funds to Parent and/or
Purchaser to pay for the Shares to be acquired pursuant to the Offer and the
Merger. See Section 10.

     The consolidated financial statements of Merck KGaA are published in
Deutsche Marks ("DM").

                                       27
<PAGE>   30

                         MERCK KGaA, DARMSTADT, GERMANY

                      SELECTED CONSOLIDATED FINANCIAL DATA

<TABLE>
<CAPTION>
                                                       FISCAL YEAR ENDED DECEMBER 31,
                                                  ----------------------------------------
                                                  1998(1)     1998       1997       1996
                                                  -------    -------    -------    -------
                                                       (IN MILLIONS, EXCEPT AS NOTED)
<S>                                               <C>        <C>        <C>        <C>
INCOME STATEMENT DATA
  Sales.........................................  $4,364     DM8,115    DM7,974    DM6,953
  Operating income..............................   0.588       1,093      1,354        878
  Net income (after minority interests).........     336         625        731        878
BALANCE SHEET DATA
  Working capital(2)............................  $  519       DM965    DM2,311    DM1,034
  Total assets..................................   5,856      10,889     11,276      9,056
  Total indebtedness............................   2,064       3,837      4,326      2,922
  Shareholders' equity..........................   1,802       3,350      3,445      2,883
</TABLE>

- ---------------
(1) Deutsche Marks have been translated into millions of U.S. Dollars solely for
    the convenience of the reader on the basis of the Noon Buying Rate (as
    defined below) on June 11, 1999.

(2) Less pension reserves.

     The following table sets forth, for the periods and dates indicated,
certain information concerning the exchange rate for the Deutsche Marks into
U.S. Dollars based upon the noon buying rate for cable transfers in foreign
currencies as certified for customs purposes by the Federal Reserve Bank in New
York City (the "Noon Buying Rate").

<TABLE>
<CAPTION>
                                                                     AVERAGE
                                                       PERIOD END    RATE(1)     HIGH      LOW
                                                       ----------    -------    ------    ------
<S>                                                    <C>           <C>        <C>       <C>
1996.................................................    1.5387      1.5070     1.5387    1.4703
1997.................................................    1.7991      1.7394     1.8379    1.6362
1998.................................................    1.6730      1.7592     1.8562    1.5870
1999 (through May 31)................................    1.8695      1.7797     1.8806    1.6353
</TABLE>

- ---------------
(1) The average of the Noon Buying Rates on the last day of each month during
    the period. The Noon Buying Rate on June 11, 1999 was U.S.$1.00=DM1.8594.

     Except as described in this Offer to Purchase, as of the date hereof, none
of Purchaser, Parent, Merck KGaA or their affiliates nor, to the knowledge of
Purchaser, Parent or Merck KGaA, any of the persons listed on Schedule I hereto,
or any associate or majority owned subsidiary of Purchaser, Parent, Merck KGaA
or their affiliates or any of the persons so listed, beneficially owns or has a
right to acquire directly or indirectly any Shares, and none of Purchaser,
Parent, Merck KGaA or their affiliates nor, to the knowledge of Purchaser,
Parent or Merck KGaA, any of the persons or entities referred to above, or any
of the respective executive officers, directors or subsidiaries of any of the
foregoing, has effected any transactions in the Shares during the past 60 days.

     Except as described in this Offer to Purchase, since January 1, 1997, there
have been no contacts, negotiations or transactions between Purchaser, Parent,
Merck KGaA or their affiliates or, to the knowledge of Purchaser, Parent or
Merck KGaA, any of the persons listed in Schedule I hereto, or any subsidiary of
such persons, on the one hand, and the Company or its executive officers,
directors or affiliates, on the other hand, concerning a merger, consolidation
or acquisition, tender offer or other acquisition of securities, election of
directors, or a sale or other transfer of a material amount of assets that would
require reporting under the rules of the Commission. Except as otherwise set
forth in this Offer to Purchase, none of Purchaser, Parent, Merck KGaA or their
affiliates or, to the best knowledge of Purchaser, Parent or Merck KGaA, any of
the persons listed in Schedule I hereto, or any subsidiary of such persons, has
any contract, arrangement, understanding or relationship with any other person
with respect to any securities of the Company.

                                       28
<PAGE>   31

     In considering the recommendations of the Unaffiliated Directors and the
Special Committee with respect to the Offer and the Merger and the fairness of
the consideration to be received in the Offer and the Merger, shareholders
should be aware that certain officers and directors of Parent, Purchaser and the
Company have interests in the Offer and the Merger which are described below and
which may present them with certain potential conflicts of interest.

     Pursuant to the Standstill Agreement, the Company is required annually to
cause representatives of Parent and its affiliates to be nominated for election
to the Company's Board of Directors, rounded down to the next whole number,
which is commensurate with the proportion of Shares owned by Parent and its
affiliates. Parent and its affiliates are also entitled to be represented on any
committee of the Company's Board of Directors. Five members of the current Board
of Directors, which consists of eleven directors, are representatives of Parent
and its affiliates. See also Schedule I, Directors and Executive Officers of
Purchaser, Parent and Merck KGaA; General Partners and Members of the Executive
Board of E. Merck.

     Shareholders also should be aware that Parent and Purchaser have certain
interests that present actual or potential conflicts of interest in connection
with the Offer and the Merger. As a result of the current beneficial ownership
by Parent and its affiliates of approximately 49.89% of the Shares and its
officers and its affiliates' officers constituting five of the Company's eleven
directors, Parent may be deemed to control the Company. (See, however, the
description of the Standstill Agreement in Section 11.)

     Messrs. Jerrold B. Harris, N. Stewart Rogers and Donald P. Nielsen
constitute the Special Committee.

     The Special Committee and the Unaffiliated Directors of Directors were
aware of these actual and potential conflicts of interest and considered them
along with the other matters described in Section 6 of this Offer to Purchase.

     The following table sets forth certain information, as of January 31, 1999,
regarding the ownership of Shares by each person known by the Company to be the
beneficial owner of more than 5% of the issued and outstanding Shares, and any
director or executive officer of the Company, Parent or Purchaser who is the
beneficial owner of Shares or Options issued by the Company:

                                       29
<PAGE>   32

                              OWNERSHIP OF SHARES

<TABLE>
<CAPTION>
                                                            AMOUNT AND NATURE OF
                                                           BENEFICIAL OWNERSHIP(1)       PERCENT OF
                                                               OF SHARES AS OF          CLASS AS OF
BENEFICIAL OWNER                                              JANUARY 31, 1999        JANUARY 31, 1999
- ----------------                                           -----------------------    ----------------
<S>                                                        <C>                        <C>
DIRECTORS
  James W. Bernard.......................................           90,718(2)                  *
  Richard E. Engebrecht..................................              95,640                  *
  Jerrold B. Harris......................................          393,784(5)               1.35%
  Wolfgang Honn..........................................               --(3)                 --
  Dieter Janssen.........................................               --(3)                 --
  Stephen J. Kunst, Esq..................................               --(3)                 --
  Edward A. McGrath, Jr. ................................               6,078                  *
  Donald P. Nielsen......................................              23,158                  *
  N. Stewart Rogers......................................          336,031(4)               1.16%
  Dr. Harald J. Schroder.................................               --(3)                 --
  Walter W. Zywottek.....................................               --(3)                 --
CERTAIN EXECUTIVE OFFICERS
  David S. Barth.........................................           43,211(8)                  *
  David M. Bronson.......................................           51,657(7)                  *
  Hal G. Nichter.........................................           47,423(9)                  *
  Paul J. Nowak..........................................           77,367(6)                  *
DIRECTORS AND EXECUTIVE OFFICERS AS A GROUP (17
  PERSONS)...............................................       1,228,136(10)               4.18%
CERTAIN BENEFICIAL OWNERS
  Parent and its affiliates..............................      15,538,784(11)              49.89%
  FMR Corp. .............................................       1,990,100(12)               6.87%
</TABLE>

- ---------------
  *  Less than one percent.

 (1) Except as otherwise indicated, beneficial ownership represents sole voting
     and sole investment power with respect to $1.00 par value common stock, the
     Company's only outstanding class of stock.

 (2) Mr. Bernard disclaims any beneficial interest in 40,500 shares (included in
     the amounts shown in the above table) owned by his spouse.

 (3) Excludes shares owned by Parent and its affiliates, as to which the named
     director disclaims beneficial ownership.

 (4) Mr. N. Stewart Rogers is a trustee of a trust for grandchildren which holds
     4,000 shares (included in the amounts shown in the above table).

 (5) Includes 150,000 shares which Mr. Harris had the right to acquire within 60
     days of January 31, 1999 through the exercise of options. Also includes
     23,760 shares held under the Company's benefit plans and 23,411 shares of
     restricted stock for which beneficial ownership is based upon sole voting
     power.

 (6) Includes 68,000 shares which Mr. Nowak had the right to acquire within 60
     days of January 31, 1999 through the exercise of options. Also includes
     8,539 shares held under the Company's benefit plans for which beneficial
     ownership is based upon sole voting power.

 (7) Includes 47,000 shares which Mr. Bronson had the right to acquire within 60
     days of January 31, 1999 through the exercise of options. Also includes
     4,157 shares Mr. Bronson held under the Company's benefit plans for which
     beneficial ownership is based upon sole voting power.

 (8) Includes 40,000 shares which Mr. Barth had the right to acquire within 60
     days of January 31, 1999 through the exercise of options. Also includes
     2,261 shares Mr. Barth held under the Company's benefit plans for which
     beneficial ownership is based upon sole voting power.

                                       30
<PAGE>   33

 (9) Includes 37,000 shares which Mr. Nichter had the right to acquire within 60
     days of January 31, 1999 through the exercise of options. Also includes
     8,693 shares held under the Company's benefit plans for which beneficial
     ownership is based upon sole voting power.

(10) Includes 402,000 shares which certain executive officers had the right to
     acquire within 60 days of January 31, 1999 through the exercise of options.
     Members of the group shared voting and/or investment power with other
     persons as to 4,000 of such shares.

(11) Includes shares held by Parent and its affiliates. Includes 1,089,380
     shares that Parent and its affiliates have the right, pursuant to the
     Standstill Agreement, to acquire in the event employee stock options are
     exercised to maintain a 49.89% interest in the event the Company issues
     additional shares.

(12) As of December 31, 1998, as per the Schedule 13G filed by such beneficial
     owner with the Commission, includes 1,251,200 shares which the beneficial
     owner has sole investment power but does not have the sole or shared voting
     power.

     No director or officer of Merck KGaA, Parent or Purchaser or their
affiliates beneficially owns any Shares.

     The Company has a strategic relationship with Merck KGaA, which has been a
supplier of chemicals and other products to the Company for over 15 years. In
the ordinary course of business, the Company purchases products from affiliates
of Merck KGaA, and Merck KGaA is currently the Company's second largest supplier
of chemicals. Such purchases represent less than 5% of total purchases by the
Company.

     10.  SOURCE AND AMOUNT OF FUNDS.  If all the outstanding Shares and shares
issuable under Company stock option plans not owned by Parent or Purchaser were
tendered in response to the Offer, Purchaser would be required to pay a total of
approximately $637,761,830 to purchase the tendered Shares and pay the fees and
other expenses related to the Offer.

     Purchaser plans to obtain all funds necessary for the consummation of the
Offer and the Merger through a capital contribution or a loan or combination
thereof from Parent, Merck KGaA or another affiliate of Merck KGaA. Any funds
obtained by Parent or Purchaser through loans from Merck KGaA or one of its
affiliates would be repaid with internally generated funds (including, if the
Merger is consummated, those of the Company) and from other sources which may
include the proceeds of future refinancings. The plans for repayment of any such
borrowings will be based on Parent's and Merck KGaA's review from time to time
of the advisability of particular actions, as well as prevailing interest rates,
financial and other economic conditions and such other factors as Parent and
Merck KGaA may deem appropriate. Any funds provided to Parent or Purchaser by
Merck KGaA or any of its affiliates in connection with the Offer and the Merger
will be obtained from the working capital of Merck KGaA or such affiliate.

     While the foregoing represents the current intention of Merck KGaA, Parent
and Purchaser with respect to the financial arrangements for the funds necessary
to consummate the Offer and the Merger, such financial arrangements may change
depending upon such factors as Merck KGaA, Parent and Purchaser may deem
appropriate.

     11.  BACKGROUND OF THE OFFER; CONTACTS WITH THE COMPANY.  On February 27,
1995, EM Industries and the Company entered into (i) a Common Share and Warrant
Purchase Agreement pursuant to which EM Industries agreed to purchase at a
purchase price of $11.00 per share 1,818,181 authorized but previously unissued
Shares, together with a warrant (the "Warrant") entitling EM Industries to
purchase 967,051 additional Shares, also at a purchase price of $11.00 per share
and (ii) a Standstill Agreement dated February 27, 1995.

     Pursuant to the Standstill Agreement, the Company is required annually to
cause representatives of Parent and its affiliates to be nominated for election
to the Company's Board of Directors so as to provide Parent and its affiliates
with board representation, rounded down to the next whole number, that is
commensurate with the proportion of Shares owned by Parent and its affiliates.
Parent and its affiliates are also entitled to be represented on any committee
of the Company's Board of Directors. Five members of the

                                       31
<PAGE>   34

current Board of Directors of the Company, which consists of eleven directors,
are Affiliated Directors. See also Schedule I to this Offer to Purchase.

     Also, pursuant to the Standstill Agreement, EM Industries and its
affiliates were (except for permitted purchases to maintain their permitted
proportional interest and, except for tender offer provisions later modified by
amendment) prohibited from acquiring any additional Shares without the consent
of the Unaffiliated Directors.

     As permitted by the Standstill Agreement, and pursuant to an Assignment and
Assumption Agreement, dated April 13, 1995, EM Industries assigned its rights
under the Common Share and Warrant Purchase Agreement to Parent. On April 13,
1995, Parent acquired such 1,818,181 Shares and the Warrant. The purchased
Shares, together with the Shares acquirable upon exercise of the Warrant,
constituted approximately 20.1% of the then issued and outstanding Shares.

     On May 24, 1995, EM Industries and the Company entered into a Common Share
and Debenture Purchase Agreement pursuant to which the Company agreed to issue
and sell to EM Industries an additional 6,832,797 Shares at a purchase price of
$12.44 per share and a subordinated debenture in the principal amount of
$135,000,000 (the "Debenture"). EM Industries also agreed to exercise the
Warrant in full. As permitted by the Standstill Agreement, on June 16, 1995 EM
Industries assigned its rights under the Common Share and Debenture Purchase
Agreement to Parent pursuant to an Assignment and Assumption Agreement. The
closing under the Common Share and Debenture Purchase Agreement occurred on
September 15, 1995, at which time Parent's ownership of Shares increased to an
aggregate 9,617,993 Shares, representing approximately 46.1% of the then issued
and outstanding Shares. Also as permitted by the Standstill Agreement, Parent
transferred the Debenture to Merck KGaA pursuant to an Assignment and Assumption
Agreement, dated September 18, 1995. During the first year of the Debenture,
which was transferred to an affiliate of Merck KGaA and Parent, interest on the
principal amount thereof was paid in the form of the aggregate number of Shares
equivalent to the dollar value of the interest due and payable on each interest
payment date, at an issue price deemed to be $12.44 per share (the "Debenture
Shares") until such time as the Company issued the aggregate number of Debenture
Shares needed to increase the total number of Shares held by Parent and its
affiliates to 49.89% of the total issued and outstanding Shares on such date.

     The Standstill Agreement was amended on September 15, 1995 to grant to
Parent and its affiliates (i) the right to maintain a 49.89% interest in the
Company and (ii) the right to acquire additional Shares by means of a tender
offer commenced on or after April 13, 1999, subject to certain conditions. The
Standstill Agreement provides that Parent and its affiliates shall not commence
such tender offer unless acceptance of such offer shall have been recommended to
the Company's shareholders by a majority vote of the Unaffiliated Directors, and
the acquisition of the tendered Shares may not close unless all of the following
requirements have been satisfied: (A) such tender offer shall have been made to
all holders of Shares; (B) the purchaser shall offer to purchase for cash all
Shares tendered; and (C) such offer shall have been accepted by shareholders
owning not less than a majority of the outstanding Shares. With respect to
calculating whether a tender offer has been accepted by shareholders owning a
majority of the outstanding Shares, Shares beneficially owned by Parent and its
affiliates shall be excluded from the outstanding Shares. Upon completion of
such a tender offer, the Standstill Agreement expires in accordance with its
terms.

     In conjunction with the Company's public offering in 1997, Parent and an
affiliate purchased 3,011,719 Shares, for an aggregate cash purchase price of
approximately $68.5 million, in order to maintain the 49.89% beneficial
ownership of Parent and its affiliate. In addition, Parent and its affiliate
purchased 52,163 Shares in 1997 in order to maintain the 49.89% beneficial
ownership of Parent and its affiliate as a result of the Company's issuance of
Shares under its stock incentive plans at prices ranging from $7.79 to $13.25.
In 1998, Parent and an affiliate purchased 239,599 Shares in order to maintain
the 49.89% beneficial ownership of Parent and an affiliate as a result of the
Company's issuance of Shares under its stock incentive plans at prices ranging
from $7.79 to $18.75.

     As the result of the transactions described above and in accordance with
the terms of the Standstill Agreement, on the date of this Offer to Purchase,
Parent, together with its affiliates, is the beneficial owner of 15,538,784
Shares, representing 49.89% of the issued and outstanding Shares.

                                       32
<PAGE>   35

     On September 18, 1998, the Company's Board of Directors designated a group
consisting of both Affiliated Directors and Unaffiliated Directors (the "Working
Group") to study various means by which the Company could expand its business
and better serve its major global customers. The Company's designees on the
Working Group were Jerrold B. Harris, Donald P. Nielsen and N. Stewart Rogers;
the Merck KGaA and Parent's designees were Wolfgang Honn, Dr. Harald J. Schroder
and Walter W. Zywottek.

     At a meeting of the Working Group held on February 17, 1999, the Parent's
designees on the Working Group advised the Company's designees that Merck KGaA
and Parent were considering the possibility of formulating a plan or proposal
that could result in the acquisition, in accordance with the terms of the
Standstill Agreement, of the Shares that were not already owned by affiliates of
Merck KGaA, and that Lehman Brothers Inc. ("Lehman Brothers") had been retained
to advise Merck KGaA and Parent in that regard. The Parent's designees advised
that it had been determined not to formulate such a plan or proposal unless and
until Parent had sufficient information to enable it to conclude that there
would be a reasonable prospect that any such plan or proposal would be
acceptable to Unaffiliated Directors and could be carried out in accordance with
the terms of the Standstill Agreement. The Parent's designees further advised
that there was no assurance that such a plan or proposal would be formalized and
presented to the Company. The Company's designees inquired as to whether Merck
KGaA and Parent were also considering the possibility of formulating a plan or
proposal for the sale to the Company of the Shares held by Parent and its
affiliates. The Special Committee was advised by the Affiliated Director Members
of the Working Group that no active consideration was being given to that
possibility.

     At a meeting of the Company's Board of Directors held on February 18, 1999,
the Working Group informed the Company's Board of Directors of the substance of
the discussions among the members of the Working Group that had taken place the
previous day. At that meeting, the Company's Board of Directors appointed the
Company's designees on the Working Group to serve as a special committee of the
Board of Directors of the Company (the "Special Committee") to conduct any
discussions that might occur regarding the matters discussed within the Working
Group on February 17, 1999 and to receive and evaluate any plan or proposal that
Merck KGaA and Parent might formulate and present. In March 1999, the Company
retained BT Alex. Brown and Warburg Dillon Read as financial advisors to render
advice and assistance to the Special Committee with respect to the discussions
and analysis that would be required in connection with Parent's possible
formulation of such a plan or proposal. The Company's Board of Directors also
authorized Mr. Harris to participate in preliminary due diligence discussions
with Lehman Brothers.

     On March 29, 1999, the Affiliated Director members of the Working Group and
Merck KGaA's and Parent's legal and financial advisors met with the members of
the Special Committee and their legal and financial advisors to discuss
preliminarily the results of Merck KGaA's and Parent's deliberations. At that
meeting, the members of the Special Committee again inquired as to whether Merck
KGaA and Parent were also considering the possibility of formulating a plan or
proposal for the sale to the Company of the Merck KGaA Shares. The Special
Committee was again advised by the Affiliated Director members of the Working
Group that no active consideration was being given to that possibility.

     During April 1999, Merck KGaA and Parent, in consultation with their
financial and legal advisors, continued their exploratory work with respect to
determining whether it would be feasible or appropriate to formulate such a plan
or proposal for the acquisition of the Shares. To facilitate that process, a
general discussion was held on April 16, 1999 among Mr. Harris, the Affiliated
Director members of the Working Group and other representatives of Merck KGaA
and its affiliates. Thereafter, several telephone conferences were held among
the legal and financial advisors of the Special Committee, Merck KGaA and
Parent. Another discussion was held between the Affiliated and Unaffiliated
Directors at a Board Meeting held on April 29, 1999. The Affiliated Director
members of the Working Group advised that preliminary work was continuing and
that no proposal had been formulated. A telephone conference between members of
the Special Committee and the Affiliated Director members of the Working Group
was held on May 25, 1999 and a meeting was conducted by those parties on June 1,
1999, again for the purpose of continuing the exploratory work and preliminary
considerations of Merck KGaA and its Affiliates, including further tentative
discussions concerning price and form of consideration.

                                       33
<PAGE>   36

     On June 8, 1999, representatives of Parent, after completing additional due
diligence work, and in light of extensive discussions between the Special
Committee and the Affiliated Director members of the Working Group, formulated a
proposal in which the Merger and Offer were contemplated, and thereafter on that
date presented such proposal to a representative of the Special Committee during
a telephone conference.

     Also, on June 8, 1999, the Board of Directors of Parent and Purchaser
unanimously approved the Merger Agreement, the Shareholder Agreement and the
transactions contemplated thereby, including the Offer and the Merger.

     At a special meeting of the Company's Board of Directors (at which only the
Unaffiliated Directors (constituting a quorum) were present) and Special
Committee held on June 8, 1999, the Company's legal counsel reviewed with the
Unaffiliated Directors and Special Committee the progress of discussions, the
material terms of the proposed Merger Agreement and the Unaffiliated Directors'
and Special Committee's fiduciary obligations in connection with the proposed
Offer and Merger. BT Alex. Brown and Warburg Dillon Read then reviewed their
respective financial analyses and rendered separate opinions to the Company's
Board of Directors and Special Committee as to the fairness, from a financial
point of view, to the holders of Shares (other than Merck KGaA and its
affiliates) of the $37.00 per Share cash consideration to be received in the
Offer and the Merger by such holders. After considering, among other things, the
presentations of management and the Company's legal and financial advisors, the
Merger Agreement and the Shareholder Agreement, the Unaffiliated Directors, by
unanimous vote, approved the Offer, the Merger Agreement, the Shareholder
Agreement and the Merger and recommended that the Company's shareholders accept
the Offer and approve and adopt the Merger Agreement and the Merger.

     On June 8, 1999, Purchaser, Parent and the Company executed the Merger
Agreement under which Purchaser agreed to seek tenders of any and all
outstanding Shares for $37.00 per Share, and to pay the same amount per Share in
the Merger to shareholders other than Purchaser, Parent and their affiliates.
The Shareholder Agreement was also signed on June 8, 1999 and the parties made a
public announcement of the transaction on the evening of June 8, 1999, New York
time, and early on the morning of June 9, 1999, German time.

  12.  PURPOSE OF THE OFFER AND THE PROPOSED MERGER; PLANS FOR THE
COMPANY.  Purpose.  The purpose of the Offer is to enable Parent pursuant to the
terms of the Standstill Agreement to acquire control of, and the entire equity
interest in, the Company. Following the Offer, Parent and Purchaser intend to
acquire any remaining equity interests in the Company not acquired in the Offer
by consummating the Merger. Upon consummation of the Merger, the Company will
become a wholly-owned subsidiary of Parent. Accordingly, the Shares will cease
to be publicly traded and will no longer be quoted on the Nasdaq National
Market.

     Plans for the Company.  It is expected that, initially following the
Merger, the business and operations of the Company will continue without
substantial change. Parent will continue to evaluate the business and operations
of the Company during the pendency of the Offer and after the consummation of
the Offer and the Merger, and will take such further actions as it deems
appropriate under the circumstances then existing. Such actions could include
changes in the Company's business, corporate structures, articles of
incorporation, by-laws, capitalization, Board of Directors, management or
dividend policy, although, except as disclosed in this Offer to Purchase, Parent
has no current plans with respect to any of such matters.

     The Merger Agreement provides that promptly upon the purchase by Purchaser
of Shares pursuant to the Offer (but subject to the satisfaction of the Minimum
Condition), Purchaser shall be entitled, to the fullest extent permitted by law,
to designate at its option up to that number of directors, rounded to the next
highest whole number, on the Company's Board of Directors, subject to compliance
with Section 14(f) of the Securities Exchange Act of 1934, as amended (the
"Exchange Act"), as will make the percentage of the Company's directors
designated by Purchaser equal to the aggregate voting power of the Shares held
by Parent or any of its subsidiaries. See Section 15. The Merger Agreement also
provides that the directors of Purchaser at the Effective Time of the Merger
will, from and after the Effective Time, be the initial directors of the Company
after the Merger.

                                       34
<PAGE>   37

     Upon consummation of the Merger, Parent may amend and restate the Company's
Articles of Incorporation and By-laws to amend or delete provisions that will no
longer be appropriate for a privately-held company.

     Except as described in this Offer to Purchase, none of Purchaser, Parent,
Merck KGaA or their affiliates nor, to the best knowledge of Purchaser, Parent
or Merck KGaA, any of the persons listed on Schedule I, has any present plans or
proposals that would relate to or result in an extraordinary corporate
transaction such as a merger, reorganization or liquidation involving the
Company or any of its subsidiaries or a sale or other transfer of a material
amount of assets of the Company or any of its subsidiaries, any material change
in the capitalization or dividend policy of the Company or its subsidiaries or
any other material change in the corporate structure, businesses, or the
composition of the Company's Board of Directors or management of the Company or
any of its subsidiaries.

     13.  CERTAIN EFFECTS OF THE TRANSACTION.  Market for Shares.  The purchase
of Shares in response to the Offer will reduce the number of Shares that might
otherwise trade publicly and will reduce the number of holders of Shares, which
could adversely affect the liquidity and market value of the remaining Shares
held by the public. Depending upon the number of Shares purchased pursuant to
the Offer, the Shares may no longer meet the requirements of the National
Association of Securities Dealers Inc. ("NASD") for continued inclusion in the
Nasdaq National Market (the top tier of the Nasdaq Stock Market), which require
that an issuer have at least 750,000 publicly held shares, held by at least 400
holders of round lots, with a market value of at least $5,000,000 and have net
tangible assets of at least $4,000,000. If the Shares were no longer eligible
for inclusion in the Nasdaq National Market, they may nevertheless continue to
be included in the Nasdaq SmallCap Market. However, if among other things, the
number of holders of Shares were to fall below 300, the number of publicly held
Shares were to fall below 500,000 or there were not at least two registered and
active market makers for Shares, the NASD's rules provide that the Shares would
no longer be "qualified" for Nasdaq Stock Market reporting, and the Nasdaq Stock
Market would cease to provide any quotations. Shares held directly or indirectly
by directors, officers or beneficial owners of more than 10% of Shares
ordinarily will not be considered as being publicly held for this purpose. The
Company has informed Purchaser that, as of March 31, 1999, there were
approximately 1500 holders of record and that, as of the close of business on
such date, 28,962,527 Shares were issued and outstanding. If, as a result of the
purchase of Shares pursuant to the Offer or otherwise, the Shares no longer meet
the requirements of the NASD for continued inclusion in the Nasdaq National
Market or in any other tier of the Nasdaq Stock Market and the Shares are no
longer included in the Nasdaq National Market or in any other tier of the Nasdaq
Stock Market, as the case may be, the market for the Shares could be adversely
affected.

     If the Shares no longer meet the requirements of the NASD for continued
inclusion in any tier of the Nasdaq Stock Market, quotations might still be
available from other sources. However, the extent of the public market for
Shares and the availability of such quotations would depend upon the number of
shareholders after the purchase of Shares tendered in response to the Offer,
whether securities firms are interested in maintaining a market in the Shares,
the possible termination of registration under the Exchange Act as described
below and other factors.

     Exchange Act Registration.  The Shares are currently registered under the
Exchange Act. Such registration may be terminated upon application by the
Company to the Commission if the Shares are not listed on a national securities
exchange or quoted on Nasdaq and there are fewer than 300 record holders. The
termination of the registration of the Shares under the Exchange Act would
substantially reduce the information required to be furnished by the Company to
holders of Shares and to the Commission and would make certain provisions of the
Exchange Act no longer applicable to the Company, such as the short-swing profit
recovery provisions of Section 16(b), the requirement of furnishing a proxy
statement pursuant to Section 14(d) of the Exchange Act in connection with
shareholders' meetings and the related requirements of furnishing an annual
report to shareholders and the requirements of Rule 13e-3 under the Exchange Act
with respect to "going private" transactions. In addition, the ability of
"affiliates" of the Company and persons holding "restricted securities" of the
Company to dispose of such securities pursuant to Rule 144 or Rule 144A under
the Securities Act may be impaired or eliminated. If registration of the Shares
under the

                                       35
<PAGE>   38

Exchange Act were terminated, the Shares would no longer be "margin securities"
or be eligible for Nasdaq reporting.

     Parent intends to seek to cause the Company to apply for termination of
registration of the Shares under the Exchange Act as soon after completion of
the Offer as the requirements for such termination are met. If registration of
the Shares is not terminated prior to the Merger, then the Shares will be
delisted from all stock exchanges and the registration of the Shares under the
Exchange Act will be terminated following the consummation of the Merger.

     Margin Stock.  The Shares are currently "margin securities" under the
regulations of the Board of Governors of the Federal Reserve System (the
"Federal Reserve Board"), which has the effect, among other things, of allowing
brokers to extend credit on the collateral of such Shares. Depending upon
factors similar to those described above with respect to listing and market
quotations, it is possible that, following the Offer, the Shares might no longer
constitute "margin securities" for purposes of the Federal Reserve Board's
margin regulations and, therefore, could no longer be used as collateral for
loans made by brokers.

     14.  CONDITIONS OF THE OFFER.  Purchaser will not be required to accept for
payment or, subject to any applicable rules and regulations of the Commission,
including Rule 14e-1(c) under the Exchange Act (relating to Purchaser's
obligation to pay for or return tendered Shares after termination or withdrawal
of the Offer), pay for, and (subject to any such rules or regulations) may delay
the acceptance for payment of any tendered Shares and (except as provided in the
Merger Agreement) amend or terminate the Offer (whether or not any Shares have
been previously purchased or paid for pursuant to the Offer) (A) unless the
following conditions shall have been satisfied: (i) there shall be validly
tendered and not withdrawn prior to the expiration of the Offer a number Shares
which represents a majority of the total number of outstanding Shares of the
Company, excluding any Shares held by Parent, Purchaser or any affiliate thereof
and (ii) any applicable waiting period under the HSR Act or any similar
applicable foreign law, including but not limited to the requirement of the
German federal antitrust supervisory authority (Bundeskartelamt), shall have
expired or been terminated prior to the expiration of the Offer and the required
approval of any governmental entity for the Merger Agreement or the consummation
of the transactions contemplated by the Merger Agreement shall have been
obtained or (B) if at any time after the date of the Merger Agreement and before
the time of payment for any such Shares (whether or not any Shares have
previously been accepted for payment or paid for pursuant to the Offer), any of
the following events shall occur and be continuing:

          (a) there shall be threatened or pending by any governmental entity
     any suit, action or proceeding (i) challenging the acquisition by Parent or
     Purchaser of any Shares under the Offer, seeking to restrain or prohibit
     the making or consummation of the Offer or the Merger or the performance of
     any of the other transactions contemplated by the Merger Agreement or the
     Shareholder Agreement or seeking to obtain from the Company, Parent or
     Purchaser any damages that are material in relation to the Company and its
     subsidiaries taken as a whole, (ii) seeking to prohibit or materially limit
     the ownership or operation by the Company, Parent or any of their
     respective subsidiaries of any portion of the business or assets of the
     Company and its subsidiaries, taken as a whole, or Parent and its
     subsidiaries, taken as a whole, or to compel the Company or Parent to
     dispose of or hold separate any portion of the business or assets of the
     Company and its subsidiaries, taken as a whole, or Parent and its
     subsidiaries, taken as a whole, as a result of the Offer or any of the
     other transactions contemplated by the Merger Agreement or the Shareholder
     Agreement, (iii) seeking to impose limitations on the ability of Parent or
     Purchaser to acquire or hold, or exercise full rights of ownership of, any
     Shares to be accepted for payment pursuant to the Offer including, without
     limitation, the right to vote such Shares on all matters properly presented
     to the shareholders of the Company, (iv) seeking to prohibit Parent or any
     of its subsidiaries from effectively controlling in any respect any portion
     of the business or operations of the Company or its subsidiaries or (v)
     which otherwise is reasonably likely to have a materially adverse effect on
     the business, properties, assets, financial condition or results of
     operations of the Company and its subsidiaries taken as a whole;

          (b) there shall be enacted, entered, enforced, promulgated or deemed
     applicable to the Offer or the Merger by any governmental entity any
     statute, rule, regulation, judgment, order or injunction, other than

                                       36
<PAGE>   39

     the application to the Offer or the Merger of applicable waiting periods
     under the HSR Act, that is reasonably likely to result, directly or
     indirectly, in any of the consequences referred to in clauses (i) through
     (v) of paragraph (a) above;

          (c) the Unaffiliated Directors, or any committee designated thereby,
     shall have withdrawn, or modified or changed (including by amendment of the
     Schedule 14D-9) their recommendation of the Offer, the Merger or the Merger
     Agreement or approved or recommended a Takeover Proposal, or shall have
     resolved to do so, which, in the judgment of Parent with respect to each
     and every matter referred to above and regardless of the circumstances
     giving rise to any such condition, makes it inadvisable to proceed with the
     Offer or with such acceptance for payment of or payment for Shares or to
     proceed with the Merger;

          (d) it shall have been publicly disclosed or Parent or Sub shall have
     otherwise learned that any person or "group" (as defined in Section
     13(d)(3) of the Exchange Act), other than Parent or its affiliates or any
     group of which any of them is a member, shall have acquired beneficial
     ownership (determined pursuant to Rule 13d-3 under the Exchange Act) of
     more than 20% of the Shares through the acquisition of stock, the formation
     of a group or otherwise, or shall have been granted an option, right or
     warrant, conditional or otherwise, to acquire beneficial ownership of more
     than 20% of the Shares;

          (e) any of the representations and warranties of the Company set forth
     in the Merger Agreement (without giving effect to the materiality
     limitations contained therein) shall not be true and correct in any respect
     as though made on and as of such date (except for representations and
     warranties made as of a specified date which shall not be true and correct
     as of the specified date), except for any breach or breaches which, in the
     aggregate, would not have a materially adverse effect on the Company;

          (f) the Company shall have failed to perform in any material respect
     any material obligation or to comply in any material respect with any
     material agreement or covenant of the Company to be performed or complied
     with by it under the Merger Agreement;

          (g) there shall have occurred any event that, individually or when
     considered together with any other matter, has had or is reasonably likely
     in the future to have a materially adverse effect on the Company;

          (h) there shall have occurred (i) any general suspension of, or
     limitation on prices (other than suspensions or limitations triggered by
     price fluctuations on a trading day) for, trading in securities on any
     national securities exchange or the over-the-counter market in the United
     States of America in the Federal Republic of Germany, (ii) a declaration of
     a banking moratorium or any suspension of payments in respect of banks in
     the United States of America or in the Federal Republic of Germany, (iii)
     any material limitation (whether or not mandatory) by any government or
     governmental, administrative or regulatory authority or agency, domestic or
     foreign, on the extension of credit by banks or other lending institutions,
     (iv) a commencement of a war or armed hostilities or other national
     calamity directly involving the United States of America or the Federal
     Republic of Germany and Parent shall have determined that there is a
     reasonable likelihood that such event may be of materially adverse
     significance to it or to the Company, or (v) in the case of any of the
     foregoing existing at the time of the execution of the Merger Agreement, a
     material acceleration or worsening thereof; or

          (i) (i) any applicable waiting period under Section 721 of Title VII
     of the Defense Production Act of 1950, as amended by Section 5021 of the
     Omnibus Trade and Competitiveness Act of 1988 and Section 837 of the
     National Defense Authority Act for Fiscal Year 1993 (the "Exon-Florio
     Provisions") shall not have expired, (ii) the Committee on Foreign
     Investment in the United States ("CFIUS") shall have initiated an
     investigation of the transactions contemplated under this Agreement, or
     (iii) if CFIUS initiates an investigation, the applicable waiting period
     under the Exon-Florio Provisions relating to such investigation shall have
     expired, or such investigation shall have been completed and the President
     shall have announced a decision to take action pursuant to the Exon-Florio
     Provisions before the expiration of the period ending on the 15th day (or
     if such day is not a business day, the next business day) following the
     completion of such investigation, which has a substantial likelihood of
     resulting, directly or indirectly,

                                       37
<PAGE>   40

     in any of the consequences referred to in clauses (i) through (v) of
     paragraph (a) above or such 15 day waiting period shall not have expired;
     or

          (j) the Merger Agreement shall have been terminated in accordance with
     its terms.

     The foregoing conditions are for the sole benefit of Parent and Purchaser
and, other than the Minimum Condition, may, subject to the terms of the Merger
Agreement, be waived by Parent and Purchaser in whole or in part at any time and
from time to time in their sole discretion. The failure by Parent or Purchaser
at any time to exercise any of the foregoing rights shall not be deemed a waiver
of any such right, the waiver of any such right with respect to particular facts
and circumstances shall not be deemed a waiver with respect to any other facts
and circumstances and each such right shall be deemed an ongoing right that may
be asserted at any time and from time to time.

     15.  THE MERGER.  The Merger Agreement.  The following is a summary of
certain provisions of the Merger Agreement. This summary is qualified in its
entirety by reference to the Merger Agreement which is incorporated herein by
reference and a copy or form of which has been filed with the Commission as an
exhibit to the Schedule 14D-1 (the "Schedule 14D-1"). Defined terms used herein
and not defined herein shall have the respective meanings assigned to those
terms in the Merger Agreement.

     The Merger Agreement provides that upon the terms and subject to the
conditions thereof, and in accordance with the PBCL, Purchaser shall be merged
with and into the Company at the Effective Time. Following the Effective Time,
the separate corporate existence of Purchaser shall cease and the Company shall
continue as the Surviving Corporation and shall succeed to and assume all the
rights and obligations of Purchaser and the Company in accordance with the PBCL.

     The Offer.  The Merger Agreement provides that, so long as the Merger
Agreement has not been terminated pursuant to its terms, and subject to the
terms of the Merger Agreement, as promptly as practicable but in no event later
than five business days after the date of the public announcement by Parent and
the Company of the Merger Agreement, Purchaser shall, and Parent shall cause
Purchaser to, commence the Offer. In the Merger Agreement, Parent and Purchaser
agree that Purchaser will not terminate the Offer between scheduled expiration
dates (except in the event that the Merger Agreement is terminated) and that, in
the event that Purchaser would otherwise be entitled to terminate the Offer at
any scheduled expiration date due to the failure of one or more of the Offer
Conditions, unless the Merger Agreement has been terminated, Purchaser will, and
Parent will cause Purchaser to, extend the Offer until such date as the Offer
Conditions have been satisfied or such later date as required by applicable law;
provided, however, that Purchaser is not required to extend the Offer beyond the
Outside Date. Purchaser may, at any time, transfer or assign to one or more
corporations directly or indirectly wholly-owned by Parent the right to purchase
all or any portion of the Shares tendered pursuant to the Offer, but any such
transfer or assignment will not relieve Purchaser of its obligations under the
Offer or prejudice the rights of tendering shareholders to receive payment for
Shares validly tendered and accepted for payment.

     Recommendation.  In the Merger Agreement, the Company represents and
warrants that the Company's Board of Directors, at a meeting duly called and
held, duly adopted (by unanimous vote, with the Affiliated Directors not
participating) resolutions approving the Offer, the Merger Agreement, the Merger
and the Shareholder Agreement, determining that the terms of the Offer and the
Merger are fair to, and in the best interests of, the Company's shareholders
(other than Parent and its affiliates) and recommending that the Company's
shareholders accept the Offer and approve and adopt the Merger Agreement and the
Merger. Counsel to the Company has advised that the only vote of holders of any
class or series of the Company's capital stock required to adopt the Merger
Agreement and the transactions contemplated thereby, including the Merger, is
the affirmative vote of a majority of the votes cast by all holders of the
Shares present in person or proxy at a duly-convened meeting of shareholders,
and if Section 1924(b)(1)(ii) of the PBCL (concerning approval by shareholders
of a plan of merger) is applicable to the Merger, no such vote shall be
required. No other state takeover or control share statute or similar statute or
regulation applies or purports to apply to the Offer, the Merger, the
Shareholder Agreement or any of the transactions contemplated by the Merger
Agreement or the Shareholder Agreement.

                                       38
<PAGE>   41

     The Merger Agreement provides that if any "fair price" or "control share
acquisition" statute or other similar statute or regulation shall become
applicable to the transactions contemplated hereby, Parent and the Company and
their respective Boards of Directors will use all reasonable efforts to grant or
obtain such approvals and take such actions as are necessary so that the
transactions contemplated by the Merger Agreement may be consummated as promptly
as practicable on the terms contemplated by the Merger Agreement and otherwise
act to minimize the effects of any such statute or regulation on the
transactions contemplated by the Merger Agreement.

     Each of the Unaffiliated Directors of the Company has indicated to the
Company that he intends to tender and sell his Shares in response to the Offer,
except that Unaffiliated Directors whose sales of their Shares in response to
the Offer might result in liability under Section 16(b) of the Exchange Act
intend that if they do not tender and sell their Shares in response to the
Offer, they shall vote their Shares in favor of the Merger.

     Cancellation and Conversion.  At the Effective Time (A) each Share that is
not automatically cancelled as described in clause (B) of this paragraph or does
not become the right to receive fair payment as described in clause (C) of this
paragraph will become the right to receive $37.00 in cash, without interest or
dividends, (B) each Share owned by Parent, Purchaser or any other affiliate of
Parent, and each Share owned by the Company or any subsidiary of the Company,
will be automatically cancelled and no consideration will be delivered in
exchange for any such Shares, and (C) each Share held by a person who has not
voted in favor of or consented to the Merger and complies in all respect with
Sections 1930 and 1575 through 1580 of the PBCL shall become the right to
receive payment of the fair value of such Shares in accordance with Sections
1930 and 1575 through 1580 of the PBCL. See discussion of dissenters' rights
below in this Section 15.

     Stock of Purchaser.  At the Effective Time, each share of common stock of
Purchaser that is outstanding immediately before the Effective Time will be
converted into and become one share of common stock of the Surviving
Corporation. Therefore, the Parent, as the sole shareholder of Purchaser, will
become the sole shareholder of the Company.

     Company Options and Warrants.  Pursuant to the Merger Agreement, in
connection with the consummation of the Offer, either (i) all outstanding
options to purchase Shares under the Company's stock option plans (whether or
not vested on the date of the Merger Agreement) will be cancelled and the
holders of such options will be entitled upon the consummation of the Offer to
receive from Purchaser cash in an amount equal to the excess, if any, of the
Offer Price over the exercise price per share, or (ii) the Company will take all
such steps as will be necessary to achieve substantially the same result as
described above. Options otherwise unexercisable prior to the expiration of the
Offer will be accelerated to enable the holders thereof to participate in the
Offer.

     Articles, By-Laws, Directors and Officers.  The Merger Agreement provides
that the Articles of Incorporation of the Company, as in effect immediately
prior to the Effective Time, shall be the Articles of Incorporation of the
Surviving Corporation until thereafter changed or amended as provided therein or
by applicable law. The By-laws of the Company shall be amended as of the
Effective Time to read in their entirety as the By-laws of Purchaser, as in
effect immediately prior to the Effective Time, until thereafter changed or
amended as provided therein, by the Articles of Incorporation of the Surviving
Corporation or by applicable law. The directors of Purchaser immediately prior
to the Effective Time shall be the directors of the Surviving Corporation, until
the next annual meeting of shareholders of the Surviving Corporation (or the
earlier of their resignation or removal) and until their respective successors
are duly elected and qualified, as the case may be. The officers of the Company
immediately prior to the Effective Time shall be the officers of the Surviving
Corporation until the earlier of their resignation or removal and until their
respective successors are duly elected and qualified, as the case may be.

     Shareholder Vote Required To Approve The Merger.  If the approval of the
Company's shareholders of the Merger Agreement and the Merger is required by
law, the Merger Agreement requires that (A) Company shall, at Parent's request,
as soon as practicable following the expiration of the Offer in accordance with
the terms of the Merger Agreement, duly call, give notice of, convene and hold a
meeting of its shareholders (the

                                       39
<PAGE>   42

"Shareholders Meeting") for the purpose of obtaining such approval and (B) the
Company, through its Board of Directors (but subject to the right of the
Unaffiliated Directors to withdraw or modify its approval or recommendation of
the Offer, the Merger and the Agreement as set forth in the Merger Agreement),
recommend to its shareholders that the shareholders approve the Merger.

     Under the PBCL, if Purchaser acquires, pursuant to the Offer or otherwise,
at least 80% of the then outstanding Shares, Purchaser's Board of Directors will
be able to effect a "short-form merger." Pursuant to the Merger Agreement,
Purchaser may extend the Offer under certain circumstances in the event that the
number of Shares validly tendered and not withdrawn, when taken together with
the Shares held by Parent and its affiliates, does not constitute at least 80%
of the then issued and outstanding Shares. If Purchaser or any other Subsidiary
of Parent acquires 80% or more of the then outstanding Shares, the parties have
agreed, at the request of Parent, to take all necessary and appropriate actions
to cause the Merger to become effective in accordance with Section
1924(b)(1)(ii) of the PBCL, as promptly as practicable after such acquisition
without a meeting of the Shareholders of the Company, including, without
limitation, adoption by the Board of Directors of Purchaser of a short-form plan
of merger in accordance with the PBCL and consistent with the terms of the
Merger. If Purchaser or any other Subsidiary of Parent does not acquire at least
80% of the then issued and outstanding Shares pursuant to the Offer or
otherwise, a vote of the Company's shareholders will be required under the PBCL
to effect the Merger and a significantly longer period of time will be required
to effect the Merger.

     Interim Operations.  The Merger Agreement provides that during the period
from the date of the Merger Agreement until the earlier of the Effective Time or
such time as Parent's and Purchaser's designees shall constitute a majority of
the Company's Board of Directors, the Company will, and will cause each of its
subsidiaries to, in all material respects, except as contemplated by the Merger
Agreement, carry on its business in the ordinary course as previously conducted
and, to the extent consistent therewith, with no less diligence and effort than
would be applied in the absence of the Merger Agreement, seek to preserve intact
their current business organizations, keep available the services of their
current officers and employees and preserve their relationships with customers,
suppliers and others having business dealings with them to the end that goodwill
and ongoing businesses shall be unimpaired at the Effective Time. In addition,
except as otherwise contemplated by the Merger Agreement, during such period,
the Company shall not, and shall not permit any of its subsidiaries to, without
the prior written consent of Parent (which consent shall not be unreasonably
withheld or delayed):

          (a) amend or propose to amend its Articles of Incorporation or By-laws
     (or comparable governing instruments) or change the number of directors
     constituting the entire Board of Directors of the Company or the Board of
     Directors of any of the Company's subsidiaries;

          (b) authorize for issuance, issue, deliver, grant, sell, pledge, or
     otherwise dispose of or propose to issue, deliver, grant, sell, pledge or
     otherwise dispose of any shares of, or any options, warrants, commitments,
     subscriptions or rights of any kind to acquire or sell any shares of, the
     capital stock or other securities of the Company or any of the Company's
     subsidiaries including, but not limited to, stock appreciation rights,
     phantom stock, any securities convertible into or exchangeable for shares
     of stock of any class of the Company or any of its subsidiaries other than
     the issuance of Shares upon the exercise of stock options of the Company
     granted prior to the date of the Merger Agreement;

          (c) split, combine or reclassify any shares of its capital stock or
     declare, pay or set aside any dividend or other distribution (whether in
     cash, stock, securities or other property or any combination thereof) in
     respect of its capital stock, or directly or indirectly redeem, purchase or
     otherwise acquire or offer to acquire, directly or indirectly, any shares
     of its capital stock or other securities;

          (d) (i) except in the ordinary course of business consistent with past
     practice, (1) assume, guarantee, endorse or otherwise become liable or
     responsible (whether directly, indirectly, continently or otherwise) for
     the obligations of any person or (2) make any loans, advances or capital
     contributions to, or investments in, any other person (other than to one of
     its subsidiaries); (ii) acquire the stock or the assets of, or merge or
     consolidate with, any other person; (iii) voluntarily incur any liability
     or obligation (absolute, accrued, contingent or otherwise) other than in
     the ordinary course of business consistent with

                                       40
<PAGE>   43

     past practice; or (iv) sell, transfer, mortgage, pledge or otherwise
     dispose of, or encumber, or agree to sell, transfer, mortgage, pledge or
     otherwise dispose of or encumber, any assets or properties, real, personal
     or mixed of the Company and its subsidiaries other than sales of products
     in the ordinary course of business and in a manner consistent with past
     practice; (v) incur any indebtedness for borrowed money or issue any debt
     securities or assume, guarantee or endorse, or otherwise as an
     accommodation become responsible for, the obligations of any person, or
     make any loans, advances or capital contributions to, or investments in,
     any other person (other than in the ordinary course of business consistent
     with past practice); (vi) enter into any contract or agreement, other than
     in the ordinary course of business consistent with past practice, or amend,
     alter or terminate any contract that is material to the Company; or (vii)
     authorize any capital expenditure except in compliance with procedures
     heretofore established by resolutions only adopted by the Board of
     Directors of the Company;

          (e) increase in any manner the compensation of any of its directors,
     officers or employees or (other than in the ordinary course of business
     consistent with past practice) enter into, establish, amend or terminate
     any benefit plan, employment, consulting, retention, change in control,
     collective bargaining, bonus or other incentive compensation, profit
     sharing, health or other welfare, stock option or other equity, pension,
     retirement, vacation, severance, deferred compensation or other
     compensation or benefit plan, policy, agreement, trust, fund or arrangement
     with, for or in respect of, any shareholder, officer, director, other
     employee, agent, consultant or affiliate other than as required pursuant to
     the terms of agreements in effect on the date of the Merger Agreement and
     disclosed to Parent prior to the execution of the Merger Agreement;

          (f) except as may be required as a result of a change in law or in
     generally accepted accounting principles, change any of the accounting
     practices or principles used by it;

          (g) make any material tax election, settle or compromise any material
     federal, state, local or foreign tax liability, or waive any statute of
     limitations for any tax claim or assessment;

          (h) settle or compromise any material pending or threatened suit,
     action or claim;

          (i) adopt a plan of complete or partial liquidation, dissolution,
     merger, consolidation, restructuring, recapitalization or other
     reorganization of the Company or any of its subsidiaries (other than the
     Merger);

          (j) pay, discharge or satisfy any claims, liabilities or obligations
     (absolute, accrued, asserted or unasserted, contingent or otherwise), other
     than the payment, discharge or satisfaction (i) in the ordinary course of
     business and consistent with past practice of liabilities reflected or
     reserved against in the financial statements of the Company or incurred in
     the ordinary course of business and consistent with past practice and (ii)
     of liabilities required to be paid, discharged or satisfied pursuant to the
     terms of any contract in existence on the date hereof or entered into in
     accordance with the terms of the Merger Agreement;

          (k) permit any insurance policy naming the Company or any of its
     subsidiaries as a beneficiary or a loss payable payee to be cancelled or
     terminated without notice to Parent, except in the ordinary course of
     business and consistent with past practice; or

          (l) take, or offer or propose to take, or agree to take in writing or
     otherwise, any of the actions described above or take or omit to take any
     action which would make any of the representations or warranties of the
     Company contained in the Merger Agreement untrue and incorrect in any
     material respect as of the date when made if such action had then been
     taken or omitted, or would result in any of the Offer Conditions or the
     conditions set forth in the Merger Agreement not being satisfied.

     In the Merger Agreement, Parent agreed that for the one-year period
following the consummation of the Offer, all persons who, as of the date of the
Merger Agreement, were employees of the Company or any of its Subsidiaries and
who are involuntarily terminated by the Company or the Surviving Corporation
will be entitled to receive severance pay and benefits equal to the severance
pay and benefits provided for in the Company's severance pay plan.

                                       41
<PAGE>   44

     No Solicitation.  In the Merger Agreement the Company has agreed that it
shall not, nor shall it permit any of its subsidiaries to, nor shall it permit
any of its executive officers, directors, authorized representatives or
authorized agents to, directly or indirectly, (i) solicit, initiate or knowingly
encourage (including by way of furnishing non-public information) any inquiries
or the making of any proposal which constitutes, or may reasonably be expected
to lead to, any Takeover Proposal or (ii) except as expressly permitted as
described in the immediately succeeding paragraph, participate in any
discussions or negotiations regarding any Takeover Proposal. For purposes of the
Merger Agreement, "Takeover Proposal" means (x) any inquiry, proposal or offer
from any person relating to any direct or indirect acquisition or purchase of
any of the assets of the Company or its subsidiaries (other than the purchase of
inventory or other assets in the ordinary course of business) or any of the
Shares then outstanding, any tender offer or exchange offer for any of the
Shares then outstanding, or any merger, consolidation, business combination,
recapitalization, liquidation, dissolution or similar transaction involving the
Company or any of its subsidiaries, other than the transactions contemplated by
this Agreement or (y) any other transaction the consummation of which could
reasonably be expected to impede, interfere with, prevent or delay the Offer
and/or the Merger or which would reasonably be expected to dilute the benefits
to Parent of the transactions contemplated by the Merger Agreement and the
Shareholders Agreement.

     The Merger Agreement provides that neither the Unaffiliated Directors nor
any committee designated thereby may withdraw or modify, or propose publicly to
(i) withdraw or modify, in a manner adverse to Parent, the approval or
recommendation by Unaffiliated Directors or such committee of the Offer, the
Merger or the Merger Agreement (or any transaction contemplated thereby);
provided, that the Unaffiliated Directors may, (A) in response to any Takeover
Proposal, suspend such recommendation for a period of up to 24 hours pending the
analysis by the Unaffiliated Directors of such Takeover Proposal, which analysis
may include to the extent necessary discussions with a person making such
Takeover Proposal regarding same, or (B) at any time prior to the consummation
of the Offer, modify or withdraw such recommendation, but only if the
Unaffiliated Directors determine in good faith, based on a written opinion of
Drinker Biddle & Reath LLP that it would be a breach of its fiduciary duties not
to so modify or withdraw such recommendation, (ii) approve or recommend, or
propose publicly to approve or recommend, any Takeover Proposal or (iii) cause
the Company to enter into any letter of intent, agreement in principle,
acquisition agreement or other similar agreement related to any Takeover
Proposal.

     The Merger Agreement provides that in the event of a withdrawal of the
recommendation, Purchaser must terminate the Offer and any party may terminate
the Merger Agreement.

     Indemnification; Exculpation and Insurance.  The Merger Agreement provides
that all rights to indemnification and exculpation from liabilities for acts or
omissions occurring at or prior to the Effective Time existing in favor of the
present or former directors, officers or employees of the Company as provided in
the Company's Articles of Incorporation or By-laws or pursuant to agreements
existing on the date of the Merger Agreement shall be assumed by the Surviving
Corporation, and Parent shall cause the Surviving Corporation to honor such
obligations in accordance with the terms thereof, without further action, as of
the Effective Time, and such rights shall continue in full force and effort in
accordance with their respective terms. Such rights, and the Surviving
Corporation's and Parent's related obligations, shall apply in all respects to
the present or former directors, officers and employees of each of the Company's
subsidiaries as though such directors, officers and employees were entitled to
indemnification rights pursuant to the Company's Articles of Incorporation or
By-laws as in effect on the date of the Merger Agreement or pursuant to such
agreements, as the case may be. In addition, from and after the Effective Time,
directors and officers of the Company who become or remain directors or officers
of Parent shall be entitled to the same indemnity rights and protections
(including those provided by directors' and officers' liability insurance) as
are afforded to other directors and officers of Parent.

     The Merger Agreement also provides that Parent shall, and shall cause the
Surviving Corporation or one of its affiliates to, maintain in effect for six
years after the Effective Time policies of directors' and officers' liability
insurance equivalent in all material respects to those maintained by or on
behalf of the Company and the Company's subsidiaries on the date of the Merger
Agreement (and having coverage and containing terms and conditions which in the
aggregate are not less advantageous to the persons presently covered by such

                                       42
<PAGE>   45

policies as insured) with respect to claims arising from any actual or alleged
wrongful act or omission occurring at or prior to the Effective Time for which a
claim has not been made against any director or officer of the Company or any
director or officer of the Company subsidiaries prior to the Effective Time.

     Conditions to Consummation of the Merger.  The Merger Agreement provides
that the respective obligations of the Company, Parent and Purchaser to effect
the Merger are subject to the satisfaction or waiver of the following
conditions: (a) subject to the satisfaction, or waiver by Purchaser, of all of
the Offer Conditions (it being understood that pursuant to the Merger Agreement
Purchaser may not waive the Minimum Condition without the prior written consent
of the Company), Purchaser shall have accepted for payment all Shares validly
tendered in the Offer and not withdrawn, provided that neither Parent nor
Purchaser may invoke this condition if Purchaser fails to purchase Shares so
tendered and not withdrawn in violation of the terms of the Merger Agreement or
the Offer; (b) if required by applicable law or the constituent documents of the
Company, Parent or Purchaser, the Merger and Merger Agreement shall have been
approved at or prior to the Effective Time by the requisite vote of the
shareholders of the Company in accordance with the PBCL and the Company's
Articles of Incorporation and By-laws; (c) no order, statute, rule, regulation,
executive order, stay, decree, judgment or injunction shall have been enacted,
entered, promulgated or enforced by any court or other governmental entity that
temporarily, preliminarily or permanently prohibits or prevents the consummation
of the Merger and that has not been vacated, dismissed or withdrawn prior to the
Effective Time; and (d) the waiting period (and any extension thereof)
applicable to the Merger under the HSR Act and any similar foreign laws shall
have been terminated or shall have expired and all consents necessary for the
consummation of the Merger shall have been obtained.

     In addition, the obligations of Parent and Purchaser to consummate the
Merger are subject to the satisfaction or waiver of the conditions (which may be
waived in whole or in part by Parent) that the Company shall have performed in
all material respects all obligations required to be performed by the Company
under the Merger Agreement at or before the earlier of (x) such time as Parent's
or Purchaser's designees constitute a majority of the Company's Board of
Directors and (y) the Effective time; provided that no failure by the Company to
have so performed any such obligation shall constitute a failure of satisfaction
of the foregoing condition where the Company's failure of performance was caused
by Parent.

     Representations and Warranties.  In the Merger Agreement, the Company has
made customary representations and warranties to Parent and Purchaser with
respect to, among other things, its organization, capitalization, public
filings, conduct of business, compliance with laws, litigation,
non-contravention, consents and approvals, opinions of financial advisors and
environmental liabilities.

     Termination.  The Merger Agreement provides that it may be terminated at
any time prior to the Effective Time, whether before or after the approval by
the shareholders of the Company (if required by applicable law): (a) by the
mutual written consent of Parent, Purchaser and the Company; (b) by either
Parent or the Company: (i) if (x) as a result of the failure of any of the Offer
Conditions the Offer shall have terminated or expired in accordance with its
terms without Purchaser having accepted for payment any Shares pursuant to the
Offer or (y) Purchaser shall have, consistent with its obligations under the
Merger Agreement, failed to pay for the Shares prior to the Outside Date;
provided, however, that such right to terminate the Merger Agreement shall not
be available to any party whose failure to perform any of its obligations under
the Merger Agreement results in the failure of any such Offer Condition or if
the failure of such condition results from facts or circumstances that
constitute a breach of any representation or warranty under the Merger Agreement
by such party; or (ii) if any governmental entity shall have issued an order,
decree or ruling or taken any other action permanently enjoining, restraining or
otherwise prohibiting the transactions contemplated by the Merger Agreement and
such order, decree or ruling or other action shall have become final and
nonappealable; provided, however, that Parent or the Company, as the case may
be, may not terminate the Merger Agreement if it has not complied with its
obligations under the Merger Agreement with respect to any such order, decree,
ruling, or other action; (c) by either Parent or Purchaser if the Company shall
have breached in any material respect any of its material covenants or other
agreements contained in the Merger Agreement which breach or failure to perform
is incapable of being cured or, the Company having been given reasonable written
notice of such breach by Parent, has not been cured within one business day
prior to the then scheduled Expiration Time; (d) by any of the Company, Parent
or Purchaser if either Parent or

                                       43
<PAGE>   46

Purchaser is entitled to terminate the Offer because the Unaffiliated Directors,
or any committee designated thereby, has withdrawn, modified or changed
(including by amendment of the Schedule 14D-9) their recommendation of the
Offer, the Merger or the Merger Agreement or approved or recommended a Takeover
Proposal, or shall have resolved to do so; provided that the temporary
suspension of the recommendation of the Company's Board of Directors referred to
in the Merger Agreement shall not give rise to such right of termination; (e) by
the Company, if Parent or Purchaser shall have breached in any material respect
any of its material covenants or other agreements contained in the Merger
Agreement, which breach or failure to perform is incapable of being cured or,
Parent having been given reasonable written notice of such breach by the
Company, has not been cured within one business day prior to the then scheduled
Expiration Date; or (f) by the Company, if the Offer has not been timely
commenced in accordance with the Merger Agreement.

     Effect of Termination.  If the Merger Agreement is terminated, neither the
Company nor Purchaser will be required to complete the Merger. Termination of
the Merger Agreement will not relieve any party thereto from any liability for
any breach of the Merger Agreement that occurs before the Merger Agreement is
terminated.

     Fees and Expenses.  Under the Merger Agreement, all fees, costs and
expenses incurred in connection with the Merger Agreement and the transactions
contemplated thereby shall be paid by the party incurring such fees, costs or
expenses, whether or not the Offer or the Merger is consummated. However, if the
Merger Agreement is terminated by Parent pursuant to paragraph (d) in the
paragraph entitled "Termination" above, the Merger Agreement provides that the
Company shall promptly pay Parent upon its request all reasonable out-of-pocket
charges and expenses incurred by Parent or its affiliates in connection with the
Merger Agreement and the transactions contemplated thereby, including without
limitation reasonable and documented attorneys' and accountants' fees and
disbursements and fees and expenses of Parent's financial advisor and any
information agent and depositary retained in connection with the Offer and all
printing and mailing fees and expenses, in an amount not to exceed $8,000,000.

     Board of Directors.  The Merger Agreement provides that promptly after such
time as Purchaser purchases Shares pursuant to the Offer (but subject to the
satisfaction of the Minimum Condition), Purchaser shall be entitled, to the
fullest extent permitted by law, to designate at its option up to that number of
directors, rounded to the next highest whole number, of the Company's Board of
Directors, subject to compliance with Section 14(f) of the Exchange Act, as will
make the percentage of the Company's directors designated by Purchaser equal to
the aggregate voting power of the Shares held by Parent or any of its
Subsidiaries; provided, however, that in the event that Purchaser's designees
are elected to the Board of Directors of the Company, until the Effective Time,
such Board of Directors shall have (i) at least three Unaffiliated Directors who
are directors on June 8, 1999 or are designated by a majority of the
Unaffiliated Directors of the Company who were directors on June 8, 1999 and
(ii) the number of Affiliated Directors required by the Standstill Agreement
which shall be in addition to the number of directors designated by Purchaser
pursuant to the Merger Agreement; and provided, further that, in such event, if
the number of Unaffiliated Directors shall be reduced below three for any reason
whatsoever, the remaining Unaffiliated Directors shall, to the fullest extent
permitted by law, designate a person to fill such vacancy who shall be deemed to
be an Unaffiliated Director for purposes of the Merger Agreement or, if no
Unaffiliated Directors then remain, the other directors shall designate three
persons to fill such vacancies who shall not be officers or Affiliates of the
Company or any of its subsidiaries, or officers or affiliates of Parent, of any
of its subsidiaries or of any other entity in which Parent owns, directly or
indirectly, any material amount of capital stock or other significant ownership
interest, and such persons shall be deemed to be Unaffiliated Directors for
purposes of the Merger Agreement.

     Following the election or appointment of Purchaser's designees and prior to
the Effective Time, any termination or amendment of the Merger Agreement by the
Company, any extension by the Company of the time for the performance of any of
the obligations or other acts of Purchaser or waiver or assertion of any of the
Company's rights under the Merger Agreement, and any other consent or action by
the Board of Directors of the Company with respect to the Merger Agreement
(other than recommending or reconfirming the recommendation that the holders of
the Shares approve and adopt the Merger Agreement and the Merger, and making
determinations in connection therewith, which recommendations and determinations
may be

                                       44
<PAGE>   47

made by a majority of the Board of Directors as constituted at any time after
such election or appointment of Purchaser's designees pursuant to the Merger
Agreement) shall to the fullest extent permitted by applicable law require the
concurrence of a majority of the Unaffiliated Directors and, to the fullest
extent permitted by law, no other action by the Company, including any action by
any other director of the Company, shall be required to approve such actions. To
the fullest extent permitted by applicable law, the Company shall take all
actions requested by Parent that are reasonably necessary to effect the election
of any such designee, including mailing to its shareholders the Information
Statement containing the information required by Section 14(f) of the Exchange
Act and Rule 14f-1 promulgated thereunder, and the Company agrees to make such
mailing with the mailing of the Schedule 14D-9 (provided that Purchaser shall
have provided to the Company on a timely basis all information required to be
included in the Information Statement with respect to Purchaser's designees).
Parent and Purchaser shall be solely responsible for any information with
respect to either of them and their nominees, officers, directors and Affiliates
required by Section 14(f) of the Exchange Act and Rule 14f-1 promulgated
thereunder. In connection with the foregoing, the Company shall promptly, at the
option of Parent, to the fullest extent permitted by law, either increase the
size of the Company's Board of Directors and/or obtain the resignation of such
number of its current directors as is necessary to enable Purchaser's designees
to be elected or appointed to the Company's Board of Directors as provided
above.

     Shareholder Agreement.  The following is a summary of the material terms of
the Shareholder Agreement. This summary is qualified in its entirety by
reference to the copy of the Shareholder Agreement filed with the Commission as
an Exhibit to the Schedule 14D-1 and incorporated herein by reference. The
Shareholder Agreement may be examined and copies may be obtained at the place
and in the manner set forth in Section 14 of this Offer to Purchase.

     In connection with the execution of the Merger Agreement, the Share Tender
Parties, who beneficially own approximately 727,800 Shares, or approximately
2.50% of the issued and outstanding Shares (the "Option Shares"), entered into
the Shareholder Agreement with Parent and Purchaser pursuant to which they have
agreed to tender their Shares (or cause the record owner of such Shares validly
to tender), and not to withdraw any Shares so tendered not later than the fifth
business day after commencement of the Offer pursuant to of the Merger Agreement
and Rule 14d-2 under the Exchange Act; provided, however, that in the event that
the Unaffiliated Directors (or any committee designated thereby) withdraw, or
propose publicly to withdraw, the approval or recommendation by such
Unaffiliated Directors or such committee of the Offer, the Merger or Merger
Agreement (or any transaction contemplated thereby), they shall each have the
right to withdraw any Shares that they have tendered.

     The Share Tender Parties have also granted to Parent and Purchaser, as
Parent may designate, an irrevocable option (the "Option") to purchase the
Option Shares owned by them and any additional Shares acquired by either of them
(whether by exercise of options or by means of a purchase, distribution,
dividend or otherwise) at $37.00 per Share or such higher price as may be paid
by Parent or Purchaser pursuant to the Offer.

     Parent or Purchaser may exercise, but are not required to exercise, the
Option from time to time, in whole or in part, on or after the date of the
consummation of the Offer but prior to the Effective Time if the Offer is
consummated but (whether due to improper tender or withdrawal of tender)
Purchaser has not accepted for payment and paid for all of the Option Shares.

     However, Parent and Purchasers' obligation to purchase Shares upon exercise
of the Option shall be subject to the conditions that (i) no preliminary or
permanent injunction or other order issued by any court or governmental,
administrative or regulatory agency or authority prohibiting the exercise of the
Option pursuant to the Shareholder Agreement shall be in effect (and no action
or proceeding shall have been commenced or threatened for the purpose of
obtaining such an injunction or order); (ii) any applicable waiting period under
the HSR Act or similar foreign law required for the purchase of the Shares upon
such exercise shall have expired; and (iii) there shall have been no material
breach of the representations, warranties or covenants of any Share Tender Party
contained in the Shareholder Agreement; provided, that any failure by Parent or
Purchaser to purchase Shares upon exercise of the Option as a result of the
nonsatisfaction of any of such

                                       45
<PAGE>   48

conditions shall not affect or prejudice Parent or Purchaser's right to purchase
such Shares upon the subsequent satisfaction of such conditions.

     In the Shareholder Agreement, the Share Tender Parties have made certain
customary representations, warranties and covenants, including with respect to
(i) ownership of the Shares, (ii) the absence of liens and encumbrances on and
in respect of the Share Tender Parties' Shares, (iii) their authority to enter
into and perform their respective obligations under the Shareholder Agreement,
(iv) their ability to enter into the Shareholder Agreement without violating
other agreements to which they are party, and (v) the absence of restrictions on
the transfer of the Option Shares.

     The Shareholder Agreement provides for its termination upon the earlier of
(i) the Effective Time or (ii) the termination of the Merger Agreement in
accordance with its terms.

     Dissenters' Rights.  NO DISSENTERS' RIGHTS ARE AVAILABLE IN CONNECTION WITH
THE OFFER. However, if the Merger is consummated, shareholders who do not sell
their Shares pursuant to the Offer and who fully comply with the statutory
dissenters procedures set forth in the PBCL, the relevant portions of which are
attached to this Offer to Purchase as Schedule IV, will be entitled to receive,
in lieu of the Merger Consideration, cash for the fair value of their Shares
(which may be more than, equal to, or less than the Merger Consideration) as
determined pursuant to the procedures prescribed by the PBCL. Merely voting
against the Merger Agreement (if a vote of the Company's shareholders is
required to effect the Merger under the PBCL) will not perfect a shareholder's
dissenters' rights. Shareholders are urged to review carefully the dissenting
shareholders' rights provisions of the PBCL, a description of which is provided
below and the full text of which is attached to this Offer to Purchase as
Schedule IV and incorporated herein by reference. SHAREHOLDERS WHO FAIL TO
COMPLY STRICTLY WITH THE APPLICABLE PROCEDURES WILL FORFEIT THEIR DISSENTERS'
RIGHTS IN CONNECTION WITH THE MERGER. See Schedule IV to this Offer to Purchase.

     Sections 1571-1580 of the PBCL ("Subchapter D") and Section 1930(a) of the
PBCL, copies of which are attached to this Offer to Purchase as Schedule IV,
entitle any holder of record of Shares who objects to the Merger, in lieu of
receiving the consideration for such Shares provided under the Merger Agreement,
to demand in writing that he or she be paid in cash the fair value of his
Shares. Section 1572 of the PBCL defines "fair value" as: "The fair value of
shares immediately before the effectuation of the corporate action to which the
dissenter objects, taking into account all relevant factors, but excluding any
appreciation or depreciation in anticipation of the corporate action."

     Any shareholder contemplating making a demand for fair value is urged to
review carefully the provisions of Subchapter D, particularly the procedural
steps required to perfect his or her dissenters' rights thereunder. DISSENTERS'
RIGHTS WILL BE LOST IF THE PROCEDURAL REQUIREMENTS OF SUBCHAPTER D ARE NOT FULLY
AND PRECISELY SATISFIED. The following summary does not purport to be a complete
statement of the provisions of Subchapter D of the PBCL and is qualified in its
entirety by reference to Schedule IV to this Offer to Purchase and the PBCL.

     Filing Notice of Intention to Demand Fair Value; No Change in Beneficial
Ownership; No Vote for Merger.  Before the vote of the shareholders is taken on
the Merger (if a vote of the Company's shareholders is required to effect the
Merger under the PBCL), the dissenting shareholder must deliver to the Company a
written notice of intention to demand that he be paid the fair value of his
Shares if the Merger is effected. Such written notice must be sent to the
Secretary of the Company at Goshen Corporate Park West, 1310 Goshen Parkway,
West Chester, PA 19350. A VOTE AGAINST THE MERGER IS NOT SUFFICIENT TO SATISFY
THE REQUIREMENT OF DELIVERING A WRITTEN NOTICE TO THE COMPANY. In addition, the
shareholder must not effect any change in the beneficial ownership of his Shares
from the date of filing the notice with the Company through the consummation of
the Merger, and Shares for which payment of fair value is sought must not be
voted in favor of the Merger, and the shareholder must vote against, or abstain
from voting in favor of, the Merger. Failure of a dissenting shareholder to
comply with any of the foregoing will result in the forfeiture of any right to
demand payment of fair value for his Shares.

     Record Owners and Beneficial Owners.  A record holder of Shares held in
whole or in part for the benefit of one or more other persons may assert
dissenters' rights as to fewer than all of the Shares registered in his or

                                       46
<PAGE>   49

her name only if he or she dissents with respect to all the Shares beneficially
owned by any one person and discloses the name and address of the person or
persons on whose behalf he or she dissents. A beneficial owner of Shares who is
not the record holder may assert dissenters' rights with respect to Shares held
on his or her behalf if he or she submits to the Company the written consent of
the record holder not later than the time of assertion of dissenters' rights. A
beneficial owner may not dissent with respect to fewer than all of the Shares
owned by him or her whether or not such Shares are registered in his or her
name.

     Notice to Demand Payment.  If the Merger is effected as a Short-Form
Merger, without a vote of the Company's shareholders, the Company will mail to
all shareholders (other than Purchaser, Parent and their respective
subsidiaries) a notice of the consummation of the Merger. The notice will also
state where and when a demand for payment must be sent and certificates for
Shares deposited in order to obtain payment of fair value for the Shares (which
may be more than, equal to, or less than the Merger Consideration) and must be
accompanied by a copy of Subchapter D and a form for demanding payment. The time
set for the receipt of demands and the deposit of certificates shall not be less
than 30 days from the mailing of the notice. Failure by a shareholder to demand
payment or deposit certificates pursuant to such notice will cause such
shareholder to lose all right to the payment of the fair value of his Shares and
reinstate such shareholder's right to receive the Merger Consideration. If the
Merger has not been effected within 60 days after the date set for demanding
payment and depositing certificates, the Company will return any certificates
that have been deposited. The Company, however, may at any later time send a new
notice regarding demand for payment and deposit of certificates with like
effect.

     In the event that Purchaser does not acquire at least 80% of the then
outstanding Shares pursuant to the Offer or otherwise and the Merger is approved
at a meeting of the Company's shareholders, the Company will mail to all
dissenters who gave due notice of their intention to demand payment of fair
value and who refrained from voting in favor of the Merger a notice stating
where and when a demand for payment must be sent and certificates for Shares
deposited in order to obtain payment of fair value for the Shares (which may be
more than, equal to, or less than the Merger Consideration). The notice shall be
accompanied by a copy of Subchapter D and a form for demanding payment. The time
set for the receipt of demands and the deposit of certificates shall not be less
than 30 days from the mailing of the notice. Failure by a shareholder to demand
payment or deposit certificates pursuant to such notice will cause such
shareholder to lose all right to the payment of the fair value of his Shares and
reinstate such shareholder's right to receive the Merger Consideration. If the
Merger has not been effected within 60 days after the date set for demanding
payment and depositing certificates, the Company shall return any certificates
that have been deposited. The Company, however, may at any later time send a new
notice regarding demand for payment and deposit of certificates with like
effect.

     Payment of Fair Value of Shares.  Promptly after the consummation of the
Merger or upon timely receipt of demand for payment if the Merger has already
been effected, the Company shall either (a) remit to dissenters who have made
timely demand and deposited their certificates the amount the Company estimates
to be the fair value of their Shares or (b) give written notice that no
remittance will be made under Section 1577 of the PBCL. Such remittance or
notice will be accompanied by (i) the closing balance sheet and statement of
income of the Company for a fiscal year ending not more than 16 months prior to
the date of remittance or notice together with the latest available interim
financial statements, (ii) a statement of the Company's estimate of the fair
value of the Shares, and (iii) a notice of the right of the dissenting
shareholder to demand payment or supplemental payment, as the case may be,
accompanied by a copy of Subchapter D. If the Company does not remit the amount
of its estimate of the fair value of the Shares, it shall return all
certificates that have been deposited and may make a notation thereon that a
demand for payment has been made.

     If Shares with respect to which notation has been so made shall be
transferred, each new certificate issued therefor shall bear a similar notation
together with the name of the original dissenting holder or owner of such
Shares. A transferee of such Shares shall not acquire by such transfer any
rights in the Company other than those that the original dissenter had after
making demand for payment of fair value for such Shares.

                                       47
<PAGE>   50

     Estimate by Dissenter of Fair Value of Shares.  If a dissenting shareholder
believes that the amount estimated or paid by the Company for his or her Shares
is less than their fair value, the shareholder may send to the Company his or
her own estimate of the fair value which shall be deemed a demand for payment of
the amount or the deficiency. If the dissenter does not file his or her own
estimate of fair value within 30 days after the mailing by the Company of its
remittance or estimate of fair value, the dissenter shall be entitled to no more
than the amount remitted to him or her or estimated by the Company.

     Valuation Proceedings.  Within 60 days after the latest of (i) the
consummation of the Merger, (ii) timely receipt of any demands for payment and
(iii) timely receipt of any shareholder estimates of fair value, if any demands
for payment remain unsettled, the Company may file in court an application for
relief requesting that the fair value of the Shares be determined by the court.
Each dissenter whose demand has not been settled shall be made a party to the
proceeding and shall be entitled to recover the amount by which the fair value
of his or her Shares is found to exceed the amount, if any, previously remitted,
plus interest. Such interest shall accrue on such amount from consummation of
the Merger until the date of payment at such rate as is fair and equitable under
the circumstances, taking into account all relevant factors including the
average rate currently paid by the Company on its principal bank loans. If the
Company fails to file an application within the 60-day period, any dissenter who
has not settled his or her claim may do so in the name of the Company within 30
days after the expiration of this 60-day period. If no dissenter files an
application within such 30-day period, each dissenter who has not settled his or
her claim shall be paid no more than the Company's estimate of the fair value of
his Shares and may bring an action to recover any amount not previously
remitted.

     Costs and Expenses of Valuation Proceedings.  The costs and expenses of any
valuation proceedings, including the reasonable compensation and expenses of any
appraiser appointed by the court, shall be determined by the court and assessed
against the Company, except that any part of such costs and expenses may be
apportioned and assessed as the court deems appropriate against all or some of
the dissenters whose action in demanding supplemental payment is found by the
court to be dilatory, obdurate, arbitrary, vexatious or in bad faith. The court
may also assess against the Company the fees and expenses of counsel and experts
for any or all of the dissenters if the Company fails to comply substantially
with Subchapter D or acts in bad faith or in a dilatory, obdurate, arbitrary or
vexatious manner. The court can also assess any such fees or expenses incurred
by the Company against a dissenter if such dissenter is found to have acted in
bad faith or in a dilatory, obdurate, arbitrary or vexatious manner. If the
court finds that the services of counsel for any dissenter were of substantial
benefit to the other dissenters and should not be assessed against the Company,
it may award to such counsel reasonable fees to be paid out of the amounts
awarded to the dissenters who were benefited.

     Section 1712 of the PBCL provides that a director of a Pennsylvania
corporation stands in a fiduciary relation to such corporation and must perform
his duties as a director in good faith, in a manner he reasonably believes to be
in the best interests of the corporation and with such care, including
reasonable inquiry, skill and diligence, as a person of ordinary prudence would
use under similar circumstances. Section 1105 of the PBCL provides in substance
that a shareholder of a Pennsylvania corporation shall not have any right to
obtain, in the absence of fraud or fundamental unfairness, an injunction against
any proposed merger, nor any right to claim the right to valuation and payment
of the fair value of his or her Shares because of such merger, except that he or
she may dissent and claim such payment if and to the extent provided in
Subchapter D, described above. Absent fraud or fundamental unfairness, such
dissenters' rights are the exclusive remedy of such shareholders. However, the
United States Court of Appeals, Third Circuit, interpreting the predecessor
statute to Section 1105 of the PBCL in Herskowitz v. NutriSystem, Inc.,
concluded that dissenters' rights co-exist with common law causes of action,
such as rescission or money damages, in the context of an action for breach of
fiduciary duty or misrepresentation in a cash-out merger. Shareholders should be
aware that due to the enactment of the PBCL in 1988 it is unclear whether the
decision in Herskowitz remains applicable to dissenters' rights. IN VIEW OF THE
COMPLEXITIES OF THESE PROVISIONS OF PENNSYLVANIA LAW, SHAREHOLDERS WHO ARE
CONSIDERING DISSENTING FROM THE MERGER SHOULD CONSULT THEIR OWN LEGAL COUNSEL.

                                       48
<PAGE>   51

     The foregoing summary of the PBCL is not complete. A copy of the text of
the relevant sections of the PBCL is reprinted as Schedule IV to this Offer to
Purchase. You should read these sections in their entirety if you are
considering the possibility of seeking appraisal of your shares.

     16.  DIVIDENDS AND DISTRIBUTIONS.  The Company has agreed that, from the
date of the Merger Agreement until the effective time of the Merger, the Company
will neither split, combine or reclassify any Shares of its capital stock nor
declare, pay, or set aside any dividends or other distributions in respect of
its capital stock. The Company's credit facility, entered into on September 14,
1995, as amended, prohibits the Company from paying dividends during the term of
the credit facility.

     17.  CERTAIN LEGAL MATTERS; REGULATORY APPROVALS.  General.  Except as
otherwise disclosed in this Offer to Purchase, based upon its examination of
publicly available filings by the Company with the Commission and other publicly
available information concerning the Company, neither Parent nor Purchaser is
aware of any licenses or other regulatory permits that appear to be material to
the business of the Company and its subsidiaries, taken as a whole, that might
be adversely affected by Purchaser's acquisition of Shares (and the indirect
acquisition of the stock of its subsidiaries) as contemplated herein, or of any
filings, approvals or other actions by or with any governmental entity that
would be required prior to the acquisition of Shares (or the indirect
acquisition of the stock of its subsidiaries) by Purchaser pursuant to the Offer
as contemplated herein.

     Going Private Transactions.  The Commission has adopted Rule 13e-3 under
the Exchange Act which is applicable to certain "going private" transactions.
Purchaser will be required to comply with Rule 13e-3 under the Exchange Act,
which requires, among other things, that certain financial information
concerning the Company and certain information relating to the fairness of the
Merger and the consideration offered to minority shareholders in the Merger or
such alternative transaction, be filed with the Commission and disclosed to
shareholders prior to consummation of the Merger. This Offer to Purchase
contains information required by Rule 13e-3. Merck KGaA, Parent and Purchaser
have filed a Transaction Statement on Schedule 13e-3 with respect to the Offer,
and may file amendments thereto. The Schedule 13E-3 and any exhibits or
amendments to it may be inspected at, and copies obtained from the places
described in Section 8 of this Offer to Purchase (except that they will not be
available from the regional offices of the Commission).

     State Anti-Takeover Laws.  The Company is incorporated under the laws of
the Commonwealth of Pennsylvania. The Pennsylvania legislature has enacted a
number of anti-takeover statutes designed to make corporate takeovers more
difficult under certain circumstances. The Company has opted out of the
application of the Control Transactions Statute, the Business Combination
Statute, the Control Share Acquisition Statute and the Disgorgement Statute
(Subchapters E, F, G and H, respectively, of Chapter 25 of the PBCL). Opting out
of the Control Share Acquisition Statute also has the effect of making
Subchapters I and J of the PBCL, which relate to certain labor matters,
inapplicable. Accordingly, there are no statutorily-imposed supermajority
shareholder voting requirements applicable to the Merger.

     In addition, Pennsylvania has adopted a Takeover Disclosure Law which
purports to regulate attempts to acquire a corporation which (i) is incorporated
in Pennsylvania or (ii) has its principal place of business and substantial
assets located in Pennsylvania. Because the Company's Board of Directors has
recommended acceptance of the Offer, the Offer is exempt from the registration
requirements of such law, provided that certain information is filed with the
Pennsylvania Securities Commission and Purchaser undertakes to notify the
Company's shareholders that such filing must be made with the Pennsylvania
Securities Commission, must include substantial additional information about the
Offer and must be available for inspection at the offices of the Pennsylvania
Securities Commission, 1010 N. 7th Street, 2nd Floor, Harrisburg, Pennsylvania
17102, during normal business hours. Purchaser intends to make such filing, and
the distribution of this Offer to the Company's shareholders constitutes the
required notification to them.

     A number of other states have adopted takeover laws and regulations which
purport to varying degrees to be applicable to attempts to acquire securities of
corporations which are incorporated in such states or which have or whose
business operations have substantial economic effects in such states, or which
have substantial assets, security holders, principal executive offices or
principal places of business therein. In 1982, in Edgar v. Mite Corp., the
Supreme Court of the United States invalidated on constitutional grounds the
Illinois

                                       49
<PAGE>   52

Business Takeovers Act, which as a matter of state securities law made takeovers
of corporations meeting certain requirements more difficult. However, in 1987,
in CTS Corp. v. Dynamics Corp. of America, the Supreme Court of the United
States held that the State of Indiana could, as a matter of corporate law and in
particular those aspects of corporate law concerning corporate governance,
constitutionally disqualify a potential acquiror from voting on the affairs of a
target corporation without the prior approval of the remaining shareholders,
provided that such laws were applicable only under certain conditions.
Subsequently, a number of Federal courts ruled that various state takeover
statutes were unconstitutional insofar as they apply to corporations
incorporated outside of the state of enactment.

     The Company, directly or through its subsidiaries, conducts business in a
number of states throughout the United States, some of which have enacted
takeover laws. Purchaser does not know whether any of these laws will, by their
terms, apply to the Offer or the Merger and has not complied with any such laws.
Should any person seek to apply any state takeover law, Purchaser will take such
action as then appears desirable, which may include challenging the validity or
applicability of any such statute in appropriate court proceedings. In the event
it is asserted that one or more state takeover laws is applicable to the Offer
or the Merger, and an appropriate court does not determine that it is
inapplicable or invalid as applied to the Offer, Purchaser might be required to
file certain information with, or receive approvals from, the relevant state
authorities. In addition, if enjoined, Purchaser might be unable to accept for
payment any Shares tendered pursuant to the Offer, or be delayed in continuing
or consummating the Offer and the Merger. In such event, Purchaser may not be
obligated to accept for payment any Shares tendered.

     Pursuant to the Merger Agreement, the Company and the Company's Board of
Directors will grant such approvals and take such actions as are necessary so
that the transactions contemplated under the Merger Agreement may be consummated
as promptly as practicable on the terms contemplated thereby and otherwise act
to minimize the effects of any such statute or regulation on the transactions
contemplated thereby.

     Other Governmental or Foreign Approvals.  The Company, directly or through
its subsidiaries, owns property in a number of foreign countries and
jurisdictions. In connection with the acquisition of the Shares pursuant to the
Offer, the laws of certain of those foreign countries and jurisdictions may
require the filing of information with, or the obtaining of the approval of,
governmental authorities in such countries and jurisdictions. The governments in
such countries and jurisdictions might attempt to impose additional conditions
on the Company's operations conducted in such countries and jurisdictions as a
result of the acquisition of the Shares pursuant to the Offer or the Merger. The
Company has represented to Parent that, except for filings, permits,
authorizations, consents and approvals as may be required under, and other
applicable requirements of, the Exchange Act, the HSR Act, the PBCL, state
takeover laws and foreign and supranational laws relating to antitrust and
anti-competition clearances, neither the execution, delivery or performance of
the Merger Agreement by the Company nor the consummation by the Company of the
transactions contemplated thereby will require any filing with, or permit,
authorization, consent or approval of, any governmental authority or other
person, firm, corporation or other legal entity (except where the failure to
obtain such permits, authorizations, consents or approvals or to make such
filings would not reasonably be expected to have a materially adverse effect on
the Company or prevent or delay the consummation of the Offer and/or the
Merger).

     Antitrust.  Under the HSR Act and the rules and regulations promulgated
thereunder by the Federal Trade Commission ("FTC"), certain acquisition
transactions may not be consummated unless certain information has been
furnished to the Antitrust Division of the Department of Justice and the FTC and
certain waiting period requirements have been satisfied. The acquisition of
Shares pursuant to the Offer is subject to such requirements. There may be
similar antitrust requirements in other jurisdictions.

     Parent will file with the FTC and the Antitrust Division a Premerger
Notification and Report Form in connection with the acquisition of Shares
pursuant to the Merger Agreement and the Shareholder Agreement. Under the
provisions of the HSR Act applicable to the Offer, the purchase of Shares
pursuant to the Offer may not be consummated until the expiration of a
15-calendar day waiting period following the filing by Parent, unless both the
Antitrust Division and the FTC terminate the waiting period prior thereto. If,
within such 15-calendar day waiting period, either the Antitrust Division or the
FTC requests additional information

                                       50
<PAGE>   53

or documentary material from Parent, the waiting period will be extended for an
additional 10 calendar days following substantial compliance by Parent with such
request. Thereafter, the waiting period could be extended only by court order.
If the acquisition of Shares is delayed pursuant to a request by the FTC or the
Antitrust Division for additional information or documentary material pursuant
to the HSR Act, the Offer may, but need not, be extended and, in any event, the
purchase of and payment for Shares will be deferred until 10 days after the
request is substantially complied with, unless the waiting period is sooner
terminated by the FTC and the Antitrust Division. Only one extension of such
waiting period pursuant to a request for additional information is authorized by
the HSR Act and the rules promulgated thereunder, except by court order. Any
such extension of the waiting period will not give rise to any withdrawal rights
not otherwise provided for by applicable law. The foregoing provisions also
apply to the purchase of the Shares pursuant to the Option.

     The FTC and the Antitrust Division frequently scrutinize the legality under
the antitrust laws of transactions such as the proposed acquisition of Shares by
Purchaser pursuant to the Offer. At any time before or after the purchase by
Purchaser of Shares pursuant to the Offer, either of the FTC or the Antitrust
Division, or both, could take such action under the antitrust laws as it deems
necessary or desirable in the public interest, including seeking to enjoin the
purchase of Shares pursuant to the Offer or seeking the divestiture of Shares
purchased by Purchaser or the divestiture of substantial assets of Parent, its
subsidiaries or the Company or other ancillary measures. Private parties and
state attorneys general may also bring legal action under federal or state
antitrust laws under certain circumstances.

     Under German laws and regulations relating to the regulation of monopolies
and competition, certain acquisition transactions may not be consummated in
Germany unless certain information has been furnished to the Bundeskartelamt,
the German antitrust authority (the "BKA") and certain waiting period
requirements have been satisfied without issuance by the BKA of an order to
refrain. The purchase of Shares by Purchaser pursuant to the Offer and the
consummation of the Merger may be subject to such requirements. Under such laws,
the BKA has one month from the time of filing of such information with the BKA
to advise the parties of its intention to investigate the Offer and the Merger,
in which case the BKA has four months from the date of filing in which to take
steps to oppose the Offer and the Merger. Merck KGaA intends to file promptly
the required notification with the BKA and request early termination of the
one-month waiting period. While Merck KGaA and Parent do not believe that there
is any basis for the BKA to investigate the Offer and the Merger and Merck KGaA
and Parent believe that early termination of the waiting period will be granted,
there can be no assurance that the BKA will not investigate or oppose the
transactions or that early termination of the waiting period will be granted. In
addition, Parent may make additional filings or reports under the antitrust laws
of other nations.

     Although Purchaser believes that the acquisition of Shares pursuant to the
Offer would not violate the antitrust laws, there can be no assurance that a
challenge to the Offer on antitrust grounds will not be made or, if such
challenge is made, what the outcome will be. See Section 14 for certain
conditions of the Offer, including conditions with respect to litigation and
certain government actions.

     Exon-Florio.  Under Section 721 of Title VII of the United States Defense
Production Act of 1950, as amended by Section 5021 of the Omnibus Trade and
Competitiveness Act of 1988 ("Exon-Florio"), the President of the United States
is authorized to prohibit or suspend acquisitions, mergers or takeovers by
foreign persons of persons engaged in interstate commerce in the United States
if the President determines, after investigation, that such foreign persons in
exercising control of such acquired persons might take action that threatens to
impair the national security of the United States and that other provisions of
existing law do not provide adequate authority to protect national security.
Pursuant to Exon-Florio, notice of an acquisition by a foreign person may be
made to the Committee on Foreign Investment in the United States ("CFIUS"),
which is comprised of representatives of the Departments of the Treasury, State,
Commerce, Defense and Justice, the Office of Management and Budget, the United
States Trade Representative's Office and the Council of Economic Advisors and
which has been selected by the President to administer Exon-Florio, either
voluntarily by the parties to such proposed acquisition, merger or takeover or
by any member of CFIUS.

                                       51
<PAGE>   54

     A determination that an investigation is called for must be made within 30
days after notification of a proposed acquisition, merger or takeover is first
filed with CFIUS. Any such investigation must be completed within 45 days of
such determination. Any decision by the President to take action must be
announced within 15 days of the completion of the investigation. Although
Exon-Florio does not require the filing of a notification, nor does it prohibit
the consummation of an acquisition, merger or takeover if notification is not
made, such an acquisition, merger or takeover thereafter remains indefinitely
subject to divestment should the President subsequently determine that the
national security of the United States has been threatened or impaired.

     Under the Merger Agreement, Parent and Purchaser are not obligated to
commence the Offer and accept for payment, and pay for, any Shares tendered
pursuant to the Offer unless (i) the period of time for any applicable review by
CFIUS has expired and CFIUS has not initiated an investigation of the Offer or
Merger, or (ii) if CFIUS timely initiates such an investigation, (A) it has not
completed the investigation when the applicable waiting period under the
Exon-Florio Act has expired, or (B) CFIUS timely completes such investigation
but the President does not announce a decision by the end of the applicable
waiting period that would have a materially adverse effect on the Company.

     Purchaser believes that the acquisition of Shares pursuant to the Offer
will not have any of the effects referred to in Exon-Florio.

     18.  FEES AND EXPENSES.  Lehman Brothers is acting as Dealer Manager in
connection with the Offer and serving as financial advisor to Parent and
Purchaser in connection with the acquisition of the Company. Merck KGaA has
agreed, pursuant to an engagement letter dated as of May 26, 1999, to pay to
Lehman Brothers an advisory fee of 1% of the consideration to be paid by
Purchaser and Parent pursuant to the Offer and the Merger upon the consummation
of the Offer and the Merger. Merck KGaA has also agreed to reimburse Lehman
Brothers upon request for its reasonable expenses (including professional and
legal fees and disbursements) incurred in connection with its engagement by
Merck KGaA, and to indemnify Lehman Brothers against certain liabilities and
expenses in connection with its engagement, including certain liabilities under
the federal securities laws.

     Purchaser has retained IBJ Whitehall Bank and Trust Company to act as the
Information Agent and to act as the Depositary in connection with the Offer. The
Information Agent may contact holders of Shares by mail, telephone, facsimile
and personal interview and may request brokers, dealers and other nominee
shareholders to forward the Offer materials to beneficial owners. The
Information Agent and the Depositary will receive reasonable and customary
compensation for services relating to the Offer and will be reimbursed for
certain out-of-pocket expenses. Parent and Purchaser have also agreed to
indemnify the Information Agent and the Depositary against certain liabilities
and expenses in connection with the Offer, including certain liabilities under
the federal securities laws.

     Purchaser will not pay any fees or commissions to any broker or dealer or
any other person for soliciting tenders of Shares pursuant to the Offer (other
than to the Dealer Manager, the Information Agent and the Depositary). Brokers,
dealers, commercial banks and trust companies will, upon request, be reimbursed
by Purchaser for customary mailing and handling expenses incurred by them in
forwarding offering materials to their customers.

     The Merger Agreement provides that all fees, costs and expenses incurred in
connection with the Merger Agreement and the transactions contemplated thereby
shall be paid by the party incurring such fees, costs or expenses, whether or
not the Offer or the Merger is consummated.

     19.  MISCELLANEOUS.  The Offer is being made solely by this Offer to
Purchase and the related Letter of Transmittal and is being made to all
shareholders of the Company. Purchaser is not aware of any state where the
making of the Offer is prohibited by administrative or judicial action pursuant
to any valid state statute. If Purchaser becomes aware of any valid state
statute prohibiting the making of the Offer or the acceptance of Shares pursuant
thereto, Purchaser will make a good faith effort to comply with any such state
statute. If after such good faith effort Purchaser cannot comply with such state
statute, the Offer will not be made to, nor will tenders be accepted from or on
behalf of, the shareholders in such state. In any jurisdiction where the

                                       52
<PAGE>   55

securities, "blue sky" or other laws require the Offer to be made by a licensed
broker or dealer, the Offer shall be deemed to be made on behalf of Purchaser by
the Dealer Manager or one or more registered brokers or dealers that are
licensed under the laws of such jurisdiction.

     Purchaser, Parent and Merck KGaA have filed with the Commission a Tender
Offer Statement on Schedule 14D-1 (including exhibits) pursuant to Rule 14d-3
under the Exchange Act, furnishing certain additional information with respect
to the Offer and may file amendments thereto. Parent, Purchaser and Merck KGaA
have filed a Transaction Statement on Schedule 13e-3 with respect to the Offer,
and may file amendments thereto. Such statements and any amendments thereto,
including exhibits, which furnish certain additional information with respect to
the Offer, may be inspected and copies may be obtained from the offices of the
Commission (except that they will not be available at the regional offices of
the Commission) in the manner set forth in Section 8 of this Offer to Purchase.

     NO PERSON HAS BEEN AUTHORIZED TO GIVE ANY INFORMATION OR TO MAKE ANY
REPRESENTATION ON BEHALF OF PURCHASER, PARENT OR MERCK KGaA THAT IS NOT
CONTAINED IN THIS OFFER TO PURCHASE OR IN THE LETTER OF TRANSMITTAL AND, IF
GIVEN OR MADE, SUCH INFORMATION OR REPRESENTATION MUST NOT BE RELIED UPON AS
HAVING BEEN AUTHORIZED.

                                          EM SUBSIDIARY, INC.

June 14, 1999

                                       53
<PAGE>   56

                                   SCHEDULE I

DIRECTORS AND EXECUTIVE OFFICERS OF PURCHASER, PARENT AND MERCK KGAA AND GENERAL
            PARTNERS AND MEMBERS OF THE EXECUTIVE BOARD OF E. MERCK

     1.  Directors and Executive Officers of Purchaser.  The name, business
address, present principal occupation or employment and material occupations,
positions, offices or employment during the last five years of each director and
executive officer of Purchaser and certain other information are set forth
below. Unless otherwise indicated, the business address of each such director
and executive officer is 7 Skyline Drive, Hawthorne, NY 10532. Unless otherwise
indicated, each occupation set forth opposite an individual's name refers to
employment with Purchaser. Stephen J. Kunst and Richard K. Hackett are citizens
of the United States and Dieter Janssen is a citizen of Germany.

<TABLE>
<CAPTION>
                                                PRESENT PRINCIPAL OCCUPATION OR EMPLOYMENT
                                      AND MATERIAL OCCUPATIONS, POSITIONS, OFFICES OR EMPLOYMENT HELD
NAME AND BUSINESS ADDRESS                               DURING THE LAST FIVE YEARS
- -------------------------             ---------------------------------------------------------------
<S>                                   <C>
Dieter Janssen......................  Director, President and Chief Executive Officer of Purchaser
                                      since June of 1999; Group Vice President and Chief Financial
                                      Officer of EM Industries, Incorporated ("EMI") since 1994;
                                      previously, 1994-1996, Divisional Manager of Purchasing and
                                      Controlling for MEPRO, an affiliate of Merck KGaA; Director of
                                      VWR Scientific Products Corporation ("VWR"), 49.89% of the
                                      shares of which are owned by Merck KGaA; previously, 1988-1994,
                                      Chief Financial Officer of Merck S.A., Caracas, an affiliate of
                                      Merck KGaA.
Stephen J. Kunst....................  Director, Vice President and Secretary of Purchaser since June
                                      of 1999; Director, Vice President and Secretary of Parent;
                                      Group Vice President and General Counsel of EMI; previously,
                                      1989-1995, Vice President, Administrative Services of EMI;
                                      Director, Director of VWR.
Richard K. Hackett..................  Vice President and Treasurer of Purchaser since June of 1999;
                                      Vice President, Finance of EMI.
</TABLE>

     2.  Directors and Executive Officers of Parent.  The name, business
address, present principal occupation or employment and material occupations,
positions, offices or employment's during the last five years of each director
and executive officer of Parent and certain other information are set forth
below. Unless otherwise indicated, the business address of each such director
and executive officer is 7 Skyline Drive, Hawthorne, NY 10532. Unless otherwise
indicated, each occupation set forth opposite an individual's name refers to
employment with Parent. Peter A. Wriede is a citizen of the United States

<TABLE>
<CAPTION>
                                                PRESENT PRINCIPAL OCCUPATION OR EMPLOYMENT
                                      AND MATERIAL OCCUPATIONS, POSITIONS, OFFICES OR EMPLOYMENT HELD
     NAME AND BUSINESS ADDRESS                          DURING THE LAST FIVE YEARS
     -------------------------        ---------------------------------------------------------------
<S>                                   <C>
DIRECTORS
Peter A. Wriede.....................  Director of EMI; President and Chief Executive Officer of EMI,
                                      since April, 1998; Regional Manager, North America, of Merck
                                      KGaA previously, 1994-1998, Director and General Manager of the
                                      Pigments & Cosmetics Division of Merck KGaA; previously,
                                      1987-1994, Group Vice President in charge of the Specialty
                                      Chemicals Division of EMI; Director of Dey, Inc., an indirect
                                      subsidiary of Merck KGaA; Director. President and Chief
                                      Executive Officer of Parent.
</TABLE>

     3.  Directors and Executive Officers of Merck KGaA and E. Merck.  The name,
business address, present principal occupation or employment and material
occupations, positions, offices or employment during the last five years of each
director and executive officer of Merck KGaA and each general partner of E.
Merck

                                       I-1
<PAGE>   57

(other than positions with the same organization, or comparable positions with
multiple related organizations) and certain other information are set forth
below. Unless otherwise indicated, the business address of each such director
and executive officer is Frankfurter Strasse 250, D-64293 Darmstadt, Germany.
Unless otherwise indicated, each occupation set forth opposite an individual's
name refers to employment with Merck KGaA. All directors and executive officers
listed below are citizens of Germany.

<TABLE>
<CAPTION>
                                                PRESENT PRINCIPAL OCCUPATION OR EMPLOYMENT
                                      AND MATERIAL OCCUPATIONS, POSITIONS, OFFICES OR EMPLOYMENT HELD
NAME AND BUSINESS ADDRESS                               DURING THE LAST FIVE YEARS
- -------------------------             ---------------------------------------------------------------
<S>                                   <C>
Dr. Heinrich Hornef.................  Chairman, Supervisory Board (Aufsichtsrat); Merck KGaA; Member
                                      of partners council of SAP, Walldorf, a computer
                                      industry/software company, of Neurottstrasse 16.69190 Germany
                                      and of Friatec AG, a machine building/engineering company, of
                                      Steinzeugstrasse 50, 68229 Mannheim, Germany.
Flavio Battisti.....................  Vice Chairman, Supervisory Board (Aufsichtsrat); Merck KGaA.
Michael Fletterich..................  Supervisory Board Member (Aufsichtsrat) since October, 1998;
                                      previously, member of works council of Merck KGaA.
Jon Baumhauer.......................  Supervisory Board Member (Aufsichtsrat); Merck KGaA; Chief
                                      Executive Officer, Matthias Kraus KG, a beverage manufacturer,
                                      of Mariastrasse 14, 80639 Munchen, Germany.
Klaus Brauer........................  Supervisory Board Member (Aufsichtsrat); Merck KGaA; Member of
                                      partners council of Peguform-Werke GmbH, a plastics industry
                                      company, of Schlossmattenstrasse 18, 79268 Botzingen, Germany.
Prof. Dr. Christoph Clemm...........  Supervisory Board Member (Aufsichtsrat); Merck KGaA.
Dr. Michael Kasper..................  Supervisory Board Member (Aufsichtsrat); Merck KGaA.
Brigitte Niems......................  Supervisory Board Member (Aufsichtsrat); Merck KGaA.
Dr. Arend Oetker....................  Supervisory Board Member (Aufsichtsrat); Merck KGaA; Member of
                                      partners councils of Cognos AG, an education/counseling
                                      company, of Kielortallee 1,20144 Hamburg, Germany, Jungheinrich
                                      AG, a warehousing/transport/service company of Friedrich-Ebert-
                                      Damm 129,22047 Hamburg, Germany, VAW Aluminum AG, an aluminum
                                      manufacturer, of Georg-von-Boeselager-Strasse 25, 53117 Bonn,
                                      Germany.
Hans Schonhals......................  Supervisory Board Member (Aufsichtsrat); Merck KGaA; Member of
                                      partners councils of Pirelli Deutschland AG, a tire-industry
                                      business, of 64741 Breuberg Germany, Rohm GmbH, a plastic-
                                      industry/chemistry company, of Kirschenallee, 64293 Darmstadt,
                                      Germany.
Dr. Gerhard Ziener..................  Supervisory Board Member (Aufsichtsrat); Merck KGaA; Member of
                                      advisory boards of Benckiser Holding GmbH, a machine-building
                                      company, of Ludwig-Bertram-Strasse 8, 67059 Ludwigshafen,
                                      Germany and Dohler GmbH, a good stuffs company, of Riedstrasse
                                      9, 64295 Darmstadt, Germany.
Peter Zuhlsdorff....................  Supervisory Board Member (Aufsichtsrat); Merck KGaA; Member of
                                      partners councils of Deutz AG, a vehicle engineering company,
                                      of Muhlheimer Strasse107, 51063 Koln, Germany, GFK AG, an
                                      opinion research company, of Nordwestring 101, 90419 Nurnberg,
                                      Germany, and Deutsche Hypothekenbank AG, a banking company, of
                                      Taunusanlage 9, 60329 Frankfurt, Germany.
Dr. Walter Bardorff.................  Director (Direktor); Merck KGaA.
</TABLE>

                                       I-2
<PAGE>   58

<TABLE>
<CAPTION>
                                                PRESENT PRINCIPAL OCCUPATION OR EMPLOYMENT
                                      AND MATERIAL OCCUPATIONS, POSITIONS, OFFICES OR EMPLOYMENT HELD
NAME AND BUSINESS ADDRESS                               DURING THE LAST FIVE YEARS
- -------------------------             ---------------------------------------------------------------
<S>                                   <C>
Dr. Michael Becker..................  Director (Direktor) since October 1998; Merck KGaA; previously,
                                      Director of BASFAG, Ludwigshafen, Germany.
Dr. Klaus Bofinger..................  Director (Direktor); Merck KGaA.
Rolf Peter Deutsch..................  Director (Direktor); Merck KGaA.
Prof. Dr. Christian Flamig..........  Director (Direktor); Merck KGaA.
Dr. Jurgen Gehlhaus.................  Director (Direktor); Merck KGaA.
Dr. Hartmut Hartner.................  Director (Direktor); Merck KGaA.
Dr. Ullrich Hanstein................  Director (Direktor); Merck KGaA.
Dr. Hans-Joachim Lohrisch...........  Director (Direktor); Merck KGaA.
Dr. Ingeborg Lues...................  Director (Direktor); Merck KGaA.
Prof. Dr. Hans-Eckart Radunz........  Director (Direktor); Merck KGaA.
Dr. Karl Roser......................  Director (Direktor); Merck KGaA.
Prof. Dr. Erhard Schnurr............  Director (Direktor); Merck KGaA.
Jurgen Schupp.......................  Director (Direktor); Merck KGaA.
Gerardo Uflerbaumer.................  Director (Direktor); Merck KGaA.
Dr. Gregor Wehner...................  Director (Direktor); Merck KGaA.
Prof. Dr. Gerd Bauer................  Departmental Director (Abteilungsdirektor); Merck KGaA.
Heinrich Bausch.....................  Departmental Director (Abteilungsdirektor); Merck KGaA.
York Bernau.........................  Departmental Director (Abteilungsdirektor); Merck KGaA.
Rudolf Bracher......................  Departmental Director (Abteilungsdirektor); Merck KGaA.
Klaus-Peter Brandis.................  Departmental Director (Abteilungsdirektor); Merck KGaA.
Dr. Jurgen Eichler..................  Departmental Director (Abteilungsdirektor); Merck KGaA.
Hans Friedrich Geiss................  Departmental Director (Abteilungsdirektor); Merck KGaA.
Dr. Rolf Foehring...................  Departmental Director (Abteilungsdirektor); Merck KGaA.
Dr. Sigmar Herberg..................  Departmental Director (Abteilungsdirektor); Merck KGaA.
Dr. Manfred Muller..................  Departmental Director (Abteilungsdirektor); Merck KGaA.
Winfried Muller.....................  Departmental Director (Abteilungsdirektor); Merck KGaA.
Dr. Bernd Reckmann..................  Departmental Director (Abteilungsdirektor); General Manager,
                                      Scientific Laboratory Products, since April 1998; previously,
                                      1997 to April 1998, General Manager, Environmental and
                                      Bioanalysis, Laboratory Products Division; 1994 to 1996,
                                      Director of Marketing and Sales, Diagnostic Products Division;
                                      previously, Director of Marketing and Sales, Immuno Diagnostic
                                      Products, Diagnostic Products Division.; Merck KGaA
Friedrich Schmitt...................  Departmental Director (Abteilungsdirektor); Merck KGaA.
Joachim Szebel......................  Departmental Director (Abteilungsdirektor); Merck KGaA.
Gerhard Weber.......................  Departmental Director (Abteilungsdirektor); Merck KGaA.
Dr. Axel Wietersheim V..............  Departmental Director (Abteilungsdirektor); Merck KGaA.
Prof. Dr. Hans Joachim Langmann.....  Executive Board Member (Geschaftsleitung), E. Merck and Merck
                                      KGaA; general partner, E. Merck.
Wolfgang Honn.......................  Executive Board Member (Geschaftsleitung), E. Merck and Merck
                                      KGaA; general partner, E. Merck; Director of the Company.
</TABLE>

                                       I-3
<PAGE>   59

<TABLE>
<CAPTION>
                                                PRESENT PRINCIPAL OCCUPATION OR EMPLOYMENT
                                      AND MATERIAL OCCUPATIONS, POSITIONS, OFFICES OR EMPLOYMENT HELD
NAME AND BUSINESS ADDRESS                               DURING THE LAST FIVE YEARS
- -------------------------             ---------------------------------------------------------------
<S>                                   <C>
Dr. Michael Romer...................  Executive Board Member (Geschaftsleitung), E. Merck and Merck
                                      KGaA; general partner, E. Merck.
Prof. Dr. Bernhard Scheuble.........  Executive Board Member (Geschaftsleitung), E. Merck and Merck
                                      KGaA; general partner, E. Merck.
Prof. Dr. Thomas Schreckenbach......  Executive Board Member (Geschaftsleitung), E. Merck and Merck
                                      KGaA; general partner, E. Merck.
Dr. Harald J. Schroder..............  Executive Board Member (Geschaftsleitung), E. Merck and Merck
                                      KGaA; general partner, E. Merck; see also Part 2 of this
                                      Schedule I.
Dr. Johannes Sombroek...............  Executive Board Member (Geschaftsleitung), E. Merck and Merck
                                      KGaA; general partner, E. Merck.
Peter Merck.........................  General partner, E. Merck.
Jon Baumhauer.......................  Chairman, Partners Council E. Merck; see also above.
Dr. Heinrich Hornef.................  Partners Council Member, E. Merck.
Karl-Heinrich Kraft.................  Partners Council Member, E. Merck.
Albrecht Merck......................  Partners Council Member, E. Merck.
Dr. Arend Oetker....................  Partners Council Member, E. Merck.
Dr. Frank Stangenberg-Haverkamp.....  Partners Council Member, E. Merck.
Peter Zuhlsdorff....................  Partners Council Member, E. Merck.
Prof. Dr. Christoph Clemm...........  Partners Council Member, E. Merck; see also above.
</TABLE>

                                       I-4
<PAGE>   60

                                  SCHEDULE II

                  [LETTERHEAD OF BT ALEX. BROWN INCORPORATED]

                                                                    June 8, 1999

The Board of Directors and
  Special Committee of the Board of Directors
VWR Scientific Products Corporation
1310 Goshen Parkway
Westchester, Pennsylvania 19380

Members of the Board and Special Committee:

     BT Alex. Brown Incorporated ("BT Alex. Brown") has acted as financial
advisor to VWR Scientific Products Corporation ("VWR") in connection with the
proposed transaction involving VWR and Merck KGaA ("Merck") pursuant to the
Agreement and Plan of Merger, dated June 8, 1999 (the "Merger Agreement"), among
EM Laboratories, Incorporated, an indirect subsidiary of Merck ("EM"), EM
Subsidiary, Inc., a wholly owned subsidiary of EM("Sub"), and VWR, which
provides, among other things, for (i) the commencement by Sub of a tender offer
to purchase all outstanding shares of the common stock, par value $1.00 per
share, of VWR (the "VWR Common Stock" and, such tender offer, the "Tender
Offer") at a purchase price of $37.00 per share, net to the seller in cash (the
"Cash Consideration"), and (ii) subsequent to the Tender Offer, the merger of
Sub with and into VWR (the "Merger" and, together with the Tender Offer, the
"Transaction") pursuant to which each outstanding share of VWR Common Stock not
previously tendered will be converted into the right to receive the Cash
Consideration.

     You have requested BT Alex. Brown's opinion as to the fairness, from a
financial point of view, of the Cash Consideration to the holders of VWR Common
Stock (other than Merck and its affiliates).

     In connection with BT Alex. Brown's role as financial advisor to VWR, and
in arriving at its opinion, BT Alex. Brown has reviewed certain publicly
available financial and other information concerning VWR and certain internal
analyses and other information furnished to or discussed with it by VWR and its
advisors. BT Alex. Brown has also held discussions with members of the senior
management of VWR regarding the business and prospects of VWR. In addition, BT
Alex. Brown has (i) reviewed the reported prices and trading activity for VWR
Common Stock, (ii) compared certain financial and stock market information for
VWR with similar information for certain other companies whose securities are
publicly traded, (iii) reviewed the financial terms of certain recent business
combinations which it deemed comparable in whole or in part, (iv) reviewed the
terms of the Merger Agreement, and (v) performed such other studies and analyses
and considered such other factors as it deemed appropriate.

     BT Alex. Brown has not assumed responsibility for independent verification
of, and has not independently verified, any information, whether publicly
available or furnished to it, concerning VWR, including, without limitation, any
financial information, forecasts or projections considered in connection with
the rendering of its opinion. Accordingly, for purposes of its opinion, BT Alex.
Brown has assumed and relied upon the accuracy and completeness of all such
information and BT Alex. Brown has not conducted a physical inspection of any of
the properties or assets, and has not prepared or obtained any independent
evaluation or appraisal of any of the assets or liabilities, of VWR. With
respect to the financial forecasts and projections made available to BT Alex.
Brown and used in its analyses, BT Alex. Brown has assumed that they have been
reasonably prepared on bases reflecting the best currently available estimates
and judgments of the management of VWR as to the matters covered thereby. In
rendering its opinion, BT Alex. Brown expresses no view as to the reasonableness
of such forecasts and projections or the assumptions on which they are based. BT
Alex. Brown's opinion is necessarily based upon economic, market and other
conditions as in effect on, and the information made available to it as of, the
date hereof.

     For purposes of rendering its opinion, BT Alex. Brown has assumed that, in
all respects material to its analysis, the representations and warranties of
VWR, EM and Sub contained in the Merger Agreement are true and correct, VWR, EM
and Sub will each perform all of the covenants and agreements to be performed

                                      II-1
<PAGE>   61

by it under the Merger Agreement and all conditions to the obligations of each
of VWR, EM and Sub to consummate the Transaction will be satisfied without any
waiver thereof. BT Alex. Brown has also assumed that all material governmental,
regulatory or other approvals and consents required in connection with the
consummation of the Transaction will be obtained and that in connection with
obtaining any necessary governmental, regulatory or other approvals and
consents, or any amendments, modifications or waivers to any agreements,
instruments or orders to which either VWR, EM or Sub is a party or is subject or
by which it is bound, no limitations, restrictions or conditions will be imposed
or amendments, modifications or waivers made that would have a material adverse
effect on VWR or materially reduce the contemplated benefits of the Transaction
to VWR. In connection with its engagement, BT Alex. Brown was not requested to,
and did not, solicit third party indications of interest with respect to the
acquisition of all or a part of VWR.

     This opinion is addressed to, and for the use and benefit of, the Board of
Directors and Special Committee of the Board of Directors of VWR and is not a
recommendation to any shareholder as to whether or not such shareholder should
tender shares of VWR Common Stock in the Tender Offer or how such shareholder
should vote with respect to matters relating to the proposed Merger. This
opinion is limited to the fairness, from a financial point of view, of the Cash
Consideration to the holders of VWR Common Stock (other than Merck and its
affiliates), and BT Alex. Brown expresses no opinion as to the merits of the
underlying decision by VWR to engage in the Transaction.

     BT Alex. Brown, as a customary part of its investment banking business, is
engaged in the valuation of businesses and their securities in connection with
mergers and acquisitions, negotiated underwritings, private placements and
valuations for estate, corporate and other purposes. We have acted as financial
advisor to VWR in connection with the Transaction and will receive a fee for our
services, a significant portion of which is contingent upon the consummation of
the Transaction and a portion of which is payable upon delivery of this opinion.
BT Alex. Brown and its affiliates have in the past provided financial services
to VWR and Merck unrelated to the proposed Transaction, for which services BT
Alex. Brown and its affiliates have received compensation. BT Alex. Brown
maintains a market in VWR Common Stock and regularly publishes research reports
regarding the businesses and securities of VWR, Merck and other publicly traded
companies in the distribution industry. In the ordinary course of business, BT
Alex. Brown and its affiliates may actively trade or hold the securities and
other instruments and obligations of VWR and Merck for their own account and for
the accounts of customers and, accordingly, may at any time hold a long or short
position in such securities, instruments or obligations.

     Based upon and subject to the foregoing, it is BT Alex. Brown's opinion
that, as of the date of this letter, the Cash Consideration to be received in
the Transaction by holders of VWR Common Stock (other than Merck and its
affiliates) is fair, from a financial point of view, to such holders.

                                          Very truly yours,

                                          /s/ BT ALEX. BROWN INCORPORATED
                                          BT ALEX. BROWN INCORPORATED

                                      II-2
<PAGE>   62

                                  SCHEDULE III

                    [LETTERHEAD OF WARBURG DILLON READ LLC]

                                                                    June 8, 1999

The Board of Directors and
  Special Committee of the Board of Directors
VWR Scientific Products Corporation
1310 Goshen Parkway
Westchester, Pennsylvania 19380

Dear Members of the Board and Special Committee:

     We understand that VWR Scientific Products Corporation ("VWR") is
considering a transaction whereby (i) EM Laboratories, Incorporated ("EM"), an
indirect subsidiary of Merck KGaA ("Merck"), will cause EM Subsidiary, Inc., a
wholly owned subsidiary of EM ("Sub"), to commence a tender offer to purchase
all outstanding shares of the common stock, par value $1.00 per share, of VWR
("VWR Common Stock" and, such tender offer, the "Tender Offer") at a purchase
price of $37.00 per share, net to the seller in cash (the "Cash Consideration"),
and (ii) subsequent to the Tender Offer, Sub will be merged with and into VWR
(the "Merger" and, together with the Tender Offer, the "Transaction") pursuant
to which each outstanding share of VWR Common Stock not previously tendered will
be converted into the right to receive the Cash Consideration. The terms and
conditions of the Transaction are more fully set forth in the Agreement and Plan
of Merger, dated June 8, 1999, among EM, Sub and VWR (the "Merger Agreement").

     You have requested our opinion as to the fairness, from a financial point
of view, of the Cash Consideration to be received in the Transaction by holders
of VWR Common Stock (other than Merck and its affiliates).

     Warburg Dillon Read LLC ("WDR") has acted as financial advisor to the Board
of Directors and the Special Committee in connection with the Transaction and
will receive a fee for its services, a significant portion of which is
contingent upon the consummation of the Transaction and a portion of which is
payable upon delivery of this opinion. In the past, WDR and its predecessors
have provided investment banking services to Merck unrelated to the proposed
Transaction and received customary compensation for the rendering of such
services. In addition, WDR's affiliates or parent entity, UBS AG, currently
have, or may have in the future, a banking or financing relationship with VWR
and/or Merck. In the ordinary course of business, WDR, its successors and
affiliates may trade securities of VWR and Merck for their own accounts and,
accordingly, may at any time hold a long or short position in such securities.

     Our opinion does not address VWR's underlying business decision to effect
the Transaction or constitute a recommendation to any shareholder of VWR as to
whether or not such shareholder should tender shares of VWR Common Stock in the
Tender Offer or how such shareholder should vote with respect to the Merger. At
your direction, we have not been asked to, nor do we, offer any opinion as to
the material terms of the Merger Agreement and the obligations thereunder, or
the form of the Transaction. In rendering this opinion, we have assumed, with
your consent, that each of VWR, EM and Sub will comply with all material terms
of the Merger Agreement, as applicable, and that the Transaction will be validly
consummated in accordance with its terms. In connection with our engagement, we
were not requested to, and we did not, solicit third party indications of
interest with respect to the acquisition of all or a part of VWR.

     In arriving at our opinion, we have, among other things: (i) reviewed
certain publicly available business and historical financial information
relating to VWR; (ii) reviewed certain internal financial information and other
data relating to the business and financial prospects of VWR, including
estimates and financial forecasts prepared by the management of VWR, that were
provided to us by VWR and not publicly available; (iii) conducted discussions
with members of the senior management of VWR; (iv) reviewed publicly available
financial and stock market data with respect to certain other companies in lines
of business we believe to be generally comparable to those of VWR and Chemdex
Corporation, a company in which VWR

                                      III-1
<PAGE>   63

has an equity interest; (v) compared the financial terms of the Transaction with
the publicly available financial terms of certain other transactions which we
believe to be generally relevant; (vi) reviewed the Merger Agreement; and (vii)
conducted such other financial studies, analyses, and investigations, and
considered such other information as we deemed necessary or appropriate.

     In connection with our review, with your consent, we have not assumed any
responsibility for independent verification of any of the information provided
to or reviewed by us for the purpose of this opinion and have, with your
consent, relied on its being complete and accurate in all material respects. In
addition, at your direction, we have not made any independent evaluation or
appraisal of any of the assets or liabilities (contingent or otherwise) of VWR,
nor have we been furnished with any such evaluation or appraisal. With respect
to the financial forecasts and estimates referred to above, we have assumed, at
your direction, that they have been reasonably prepared on a basis reflecting
the best currently available estimates and judgments of the management of VWR as
to the future performance of VWR. Our opinion is necessarily based on economic,
monetary, market and other conditions as in effect on, and the information made
available to us, as of the date of this letter.

     Based upon and subject to the foregoing, it is our opinion that, as the
date hereof, the Cash Consideration to be received in the Transaction by the
holders of VWR Common Stock (other than Merck and its affiliates) is fair, from
a financial point of view, to such holders.

                                          Very truly yours,

                                          WARBURG DILLON READ LLC

                                      III-2
<PAGE>   64

                                  SCHEDULE IV

           SECTIONS 1930(a) AND 1571-80 (SUBCHAPTER D OF CHAPTER 15)
                  OF THE PENNSYLVANIA BUSINESS CORPORATION LAW
                        SECTION 1930. DISSENTERS RIGHTS

     (a) General Rule.  If any shareholder of a domestic business corporation
that is to be a party to a merger or consolidation pursuant to a plan of merger
or consolidation objects to the plan of merger or consolidation and complies
with the provisions of Subchapter D of Chapter 15 (relating to dissenters
rights), the shareholder shall be entitled to the rights and remedies of
dissenting shareholders therein provided, if any. See also section 1906(c)
(relating to dissenters rights upon special treatment).

                                   CHAPTER 15
                       SUBCHAPTER D. -- DISSENTERS RIGHTS

               SECTION 1571. APPLICATION AND EFFECT OF SUBCHAPTER

     (a) General Rule.  Except as otherwise provided in subsection (b), any
shareholder of a business corporation shall have the right to dissent from, and
to obtain payment of the fair value of his shares in the event of, any corporate
action, or to otherwise obtain fair value for his shares, where this part
expressly provides that a shareholder shall have the rights and remedies
provided in this subchapter. See:

     Section 1906(c) (relating to dissenters rights upon special treatment).
     Section 1930 (relating to dissenters rights).
     Section 1931(d) (relating to dissenters rights in share exchanges).
     Section 1932(c) (relating to dissenters rights in asset transfers).
     Section 1952(d) (relating to dissenters rights in division).
     Section 1962(c) (relating to dissenters rights in conversion).
     Section 2104(b) (relating to procedure).
     Section 2324 (relating to corporation option where a restriction on
transfer of a security is held invalid).
     Section 2325(b) (relating to minimum vote requirement).
     Section 2704(c) (relating to dissenters rights upon election).
     Section 2705(d) (relating to dissenters rights upon renewal of election).
     Section 2907(a) (relating to proceedings to terminate breach of qualifying
conditions).
     Section 7104(b)(3) (relating to procedure).

     (b) Exceptions.

          (1) Except as otherwise provided in paragraph (2), the holders of the
     shares of any class or series of shares that, at the record date fixed to
     determine the shareholders entitled to notice of and to vote at the meeting
     at which a plan specified in any of section 1930, 1931(d), 1932(c) or
     1952(d) is to be voted on, are either:

             (i) listed on a national securities exchange; or

             (ii) held of record by more than 2,000 shareholders;

     shall not have the right to obtain payment of the fair value of any such
     shares under this subchapter.

          (2) Paragraph (1) shall not apply to and dissenters rights shall be
     available without regard to the exception provided in that paragraph in the
     case of:

             (i) Shares converted by a plan if the shares are not converted
        solely into shares of the acquiring, surviving, new or other corporation
        or solely into such shares and money in lieu of fractional shares.

             (ii) Shares of any preferred or special class unless the articles,
        the plan or the terms of the transaction entitle all shareholders of the
        class to vote thereon and require for the adoption of the

                                      IV-1
<PAGE>   65

        plan or the effectuation of the transaction the affirmative vote of a
        majority of the votes cast by all shareholders of the class.

             (iii) Shares entitled to dissenters rights under section 1906(c)
        (relating to dissenters rights upon special treatment).

          (3) The shareholders of a corporation that acquires by purchase,
     lease, exchange or other disposition all or substantially all of the
     shares, property or assets of another corporation by the issuance of
     shares, obligations or otherwise, with or without assuming the liabilities
     of the other corporation and with or without the intervention of another
     corporation or other person, shall not be entitled to the rights and
     remedies of dissenting shareholders provided in this subchapter regardless
     of the fact, if it be the case, that the acquisition was accomplished by
     the issuance of voting shares of the corporation to be outstanding
     immediately after the acquisition sufficient to elect a majority or more of
     the directors of the corporation.

     (c) Grant of Optional Dissenters Rights.  The bylaws or a resolution of
board of directors may direct that all or a part of the shareholders shall have
dissenters rights in connection with any corporate action or other transaction
that would otherwise not entitle such shareholders to dissenters rights.

     (d) Notice of Dissenters Rights.  Unless otherwise provided by statute, if
a proposed corporate action that would give rise to dissenters rights under this
subpart is submitted to a vote at a meeting of shareholders, there shall be
included in or enclosed with the notice of meeting:

          (1) a statement of the proposed action and a statement that the
     shareholders have a right to dissent and obtain payment of the fair value
     of their shares by complying with the terms of this subchapter; and

          (2) a copy of this subchapter.

     (e) Other Statutes.  The procedures of this subchapter shall also be
applicable to any transaction described in any statute other than this part that
makes reference to this subchapter for the purpose of granting dissenters
rights.

     (f) Certain Provisions of Articles Ineffective.  This subchapter may not be
relaxed by any provision of the articles.

     (g) Cross References.  See sections 1105 (relating to restriction on
equitable relief), 1904 (relating to a de facto transaction doctrine abolished)
and 2512 (relating to dissenters rights procedure).

                           SECTION 1572. DEFINITIONS

     The following words and phrases when used in this subchapter shall have the
meanings given to them in this section unless the context clearly indicates
otherwise:

     "Corporation."  The issuer of the shares held or owned by the dissenter
before the corporate action or the successor by merger, consolidation, division,
conversion or otherwise of that issuer. A plan of division may designate which
of the resulting corporations is the successor corporation for the purposes of
this subchapter. The successor corporation in a division shall have sole
responsibility for payments to dissenters and other liabilities under this
subchapter except as otherwise provided in the plan of division.

     "Dissenter."  A shareholder or beneficial owner who is entitled to and does
assert dissenters rights under this subchapter and who has performed every act
required up to the time involved for the assertion of those rights.

     "Fair Value."  The fair value of shares immediately before the effectuation
of the corporate action to which the dissenter objects, taking into account all
relevant factors, but excluding any appreciation or depreciation in anticipation
of the corporate action.

                                      IV-2
<PAGE>   66

     "Interest."  Interest from the effective date of the corporate action until
the date of payment at such rate as is fair and equitable under all the
circumstances, taking into account all relevant factors, including the average
rate currently paid by the corporation on its principal bank loans.

             SECTION 1573. RECORD AND BENEFICIAL HOLDERS AND OWNERS

     (a) Record Holders of Shares.  A record holder of shares of a business
corporation may assert dissenters rights as to fewer than all of the shares
registered in his name only if he dissents with respect to all the shares of the
same class or series beneficially owned by any one person and discloses the name
and address of the person or persons on whose behalf he dissents. In that event,
his rights shall be determined as if the shares as to which he has dissented and
his other shares were registered in the names of different shareholders.

     (b) Beneficial Owners of Shares.  A beneficial owner of shares of a
business corporation who is not the record holder may assert dissenters rights
with respect to shares held on his behalf and shall be treated as a dissenting
shareholder under the terms of this subchapter if he submits to the corporation
not later than the time of the assertion of dissenters rights a written consent
of the record holder. A beneficial owner may not dissent with respect to some
but less than all shares of the same class or series owned by the owner, whether
or not the shares so owned by him are registered in his name.

                  SECTION 1574. NOTICE OF INTENTION TO DISSENT

     If the proposed corporate action is submitted to a vote at a meeting of
shareholders of a business corporation, any person who wishes to dissent and
obtain payment of the fair value of his shares must file with the corporation,
prior to the vote, a written notice of intention to demand that he be paid the
fair value for his shares if the proposed action is effectuated, must effect no
change in the beneficial ownership of his shares from the date of such filing
continuously through the effective date of the proposed action and must refrain
from voting his shares in approval of such action. A dissenter who fails in any
respect shall not acquire any right to payment of the fair value of his shares
under this subchapter. Neither a proxy nor a vote against the proposed corporate
action shall constitute the written notice required by this section.

                     SECTION 1575. NOTICE TO DEMAND PAYMENT

     (a) General Rule.  If the proposed corporate action is approved by the
required vote at a meeting of shareholders of a business corporation, the
corporation shall mail a further notice to all dissenters who gave due notice of
intention to demand payment of the fair value of their shares and who refrained
from voting in favor of the proposed action. If the proposed corporate action is
to be taken without a vote of shareholders, the corporation shall send to all
shareholders who are entitled to dissent and demand payment of the fair value of
their shares a notice of the adoption of the plan or other corporate action. In
either case, the notice shall:

          (1) State where and when a demand for payment must be sent and
     certificates for certificated shares must be deposited in order to obtain
     payment.

          (2) Inform holders of uncertificated shares to what extent transfer of
     shares will be restricted from the time that demand for payment is
     received.

          (3) Supply a form for demanding payment that includes a request for
     certification of the date on which the shareholder, or the person on whose
     behalf the shareholder dissents, acquired beneficial ownership of the
     shares.

          (4) Be accompanied by a copy of this subchapter.

     (b) Time for Receipt of Demand for Payment.  The time set for receipt of
the demand and deposit of certificated shares shall be not less than 30 days
from the mailing of the notice.

                                      IV-3
<PAGE>   67

     SECTION 1576. FAILURE TO COMPLY WITH NOTICE TO DEMAND PAYMENT, ETC.

     (a) Effect of Failure of Shareholder to Act.  A shareholder who fails to
timely demand payment, or fails (in the case of certificated shares) to timely
deposit certificates, as required by a notice pursuant to section 1575 (relating
to notice to demand payment) shall not have any right under this subchapter to
receive payment of the fair value of his shares.

     (b) Restriction on Uncertificated Shares.  If the shares are not
represented by certificates, the business corporation may restrict their
transfer from the time of receipt of demand for payment until effectuation of
the proposed corporate action or the release of restrictions under the terms of
section 1577(a) (relating to failure to effectuate corporate action).

     (c) Rights Retained by Shareholder.  The dissenter shall retain all other
rights of a shareholder until those rights are modified by effectuation of the
proposed corporate action.

          SECTION 1577. RELEASE OF RESTRICTIONS OR PAYMENT FOR SHARES

     (a) Failure to Effectuate Corporate Action.  Within 60 days after the date
set for demanding payment and depositing certificates, if the business
corporation has not effectuated the proposed corporate action, it shall return
any certificates that have been deposited and release uncertificated shares from
any transfer restrictions imposed by reason of the demand for payment.

     (b) Renewal of Notice to Demand Payment.  When the uncertificated shares
have been released from transfer restrictions and deposited certificates have
been returned, the corporation may at any later time send a new notice
conforming to the requirements of section 1575 (relating to notice to demand
payment), with like effect.

     (c) Payment of Fair Value of Shares.  Promptly after effectuation of the
proposed corporate action, or upon timely receipt of demand for payment if the
corporate action has already been effectuated, the corporation shall either
remit to dissenters who have made demand and (if their shares are certificated)
have deposited their certificates the amount that the corporation estimates to
be the fair value of the shares, or give written notice that no remittance under
this section will be made. The remittance or notice shall be accompanied by:

          (1) The closing balance sheet and statement of income of the issuer of
     the shares held or owned by the dissenter for a fiscal year ending not more
     than 16 months before the date of remittance or notice together with the
     latest available interim financial statements.

          (2) A statement of the corporation's estimate of the fair value of the
     shares.

          (3) A notice of the right of the dissenter to demand payment or
     supplemental payment, as the case may be, accompanied by a copy of this
     subchapter.

     (d) Failure to Make Payment.  If the corporation does not remit the amount
of its estimate of the fair value of the shares as provided by subsection (c),
it shall return any certificates that have been deposited and release
uncertificated shares from any transfer restrictions imposed by reason of the
demand for payment. The corporation may make a notation on any such certificate
or on the records of the corporation relating to any such uncertificated shares
that such demand has been made. If shares with respect to which notation has
been so made shall be transferred, each new certificate issued therefor or the
records relating to any transferred uncertificated shares shall bear a similar
notation, together with the name of the original dissenting holder or owner of
such shares. A transferee of such shares shall not acquire by such transfer any
rights in the corporation other than those that the original dissenter had after
making demand for payment of their fair value.

                                      IV-4
<PAGE>   68

          SECTION 1578. ESTIMATE BY DISSENTER OF FAIR VALUE OF SHARES

     (a) General Rule.  If the business corporation gives notice of its estimate
of the fair value of the shares, without remitting such amount, or remits
payment of its estimate of the fair value of a dissenter's shares as permitted
by section 1577(c) (relating to payment of fair value of shares) and the
dissenter believes that the amount stated or remitted is less than the fair
value of his shares, he may send to the corporation his own estimate of the fair
value of the shares, which shall be deemed a demand for payment of the amount or
the deficiency.

     (b) Effect of Failure to File Estimate.  Where the dissenter does not file
his own estimate under subsection (a) within 30 days after the mailing by the
corporation of its remittance or notice, the dissenter shall be entitled to no
more than the amount stated in the notice or remitted to him by the corporation.

                 SECTION 1579. VALUATION PROCEEDINGS GENERALLY

     (a) General Rule.  Within 60 days after the latest of:

          (1) Effectuation of the proposed corporate action;

          (2) Timely receipt of any demands for payment under section 1575
     (relating to notice to demand payment); or

          (3) Timely receipt of any estimates pursuant to section 1578 (relating
     to estimate by dissenter of fair value of shares);

If any demands for payment remain unsettled, the business corporation may file
in court an application for relief requesting that the fair value of the shares
be determined by the court.

     (b) Mandatory Joinder of Dissenters.  All dissenters, wherever residing,
whose demands have not been settled shall be made parties to the proceeding as
in an action against their shares. A copy of the application shall be served on
each such dissenter. If a dissenter is a nonresident, the copy may be served on
him in the manner provided or prescribed by or pursuant to 42 Pa.C.S. Ch. 53
(relating to bases of jurisdiction and interstate and international procedure).

     (c) Jurisdiction of the Court.  The jurisdiction of the court shall be
plenary and exclusive. The court may appoint an appraiser to receive evidence
and recommend a decision on the issue of fair value. The appraiser shall have
such power and authority as may be specified in the order of appointment or in
any amendment thereof.

     (d) Measure of Recovery.  Each dissenter who is made a party shall be
entitled to recover the amount by which the fair value of his shares is found to
exceed the amount, if any, previously remitted, plus interest.

     (e) Effect of Corporation's Failure to File Application.  If the
corporation fails to file an application as provided in subsection (a), any
dissenter who made a demand and who has not already settled his claim against
the corporation may do so in the name of the corporation at any time within 30
days after the expiration of the 60-day period. If a dissenter does not file an
application within the 30-day period, each dissenter entitled to file an
application shall be paid the corporation's estimate of the fair value of the
shares and no more, and may bring an action to recover any amount not previously
remitted.

           SECTION 1580. COSTS AND EXPENSES OF VALUATION PROCEEDINGS

     (a) General Rule.  The costs and expenses of any proceeding under section
1579 (relating to valuation proceedings generally), including the reasonable
compensation and expenses of the appraiser appointed by the court, shall be
determined by the court and assessed against the business corporation except
that any part of the costs and expenses may be apportioned and assessed as the
court deems appropriate against all or some of the dissenters who are parties
and whose action in demanding supplemental payment under section 1578 (relating
to estimate by dissenter of fair value of shares) the court finds to be
dilatory, obdurate, vexatious or in bad faith.
                                      IV-5
<PAGE>   69

     (b) Assessment of Counsel Fees and Expert Fees Where Lack of Good Faith
Appears.  Fees and expenses of counsel and of experts for the respective parties
may be assessed as the court deems appropriate against the corporation and in
favor of any or all dissenters if the corporation failed to comply substantially
with the requirements of this subchapter and may be assessed against either the
corporation or a dissenter, in favor of any other party, if the court finds that
the party against whom the fees and expenses are assessed acted in bad faith or
in a dilatory, obdurate, arbitrary or vexatious manner in respect to the rights
provided by this subchapter.

     (c) Award of Fees for Benefits to Other Dissenters.  If the court finds
that the services of counsel for any dissenter were of substantial benefit to
other dissenters similarly situated and should not be assessed against the
corporation, it may award to those counsel reasonable fees to be paid out of the
amounts awarded to the dissenters who were benefited.

                                      IV-6
<PAGE>   70

                                   SCHEDULE V

        AUDITED FINANCIAL STATEMENTS (AND RELATED NOTES) OF THE COMPANY
              FOR THE YEARS ENDED DECEMBER 31, 1998, 1997 AND 1996

                                       V-1
<PAGE>   71

                      VWR SCIENTIFIC PRODUCTS CORPORATION

                     CONSOLIDATED STATEMENTS OF OPERATIONS

<TABLE>
<CAPTION>
                                                                YEAR ENDED DECEMBER 31,
                                                         --------------------------------------
                                                            1998          1997          1996
                                                         ----------    ----------    ----------
                                                           (THOUSANDS, EXCEPT PER SHARE DATA)
<S>                                                      <C>           <C>           <C>
Sales..................................................  $1,349,948    $1,244,795    $1,117,286
Cost of sales..........................................   1,037,771       967,080       870,379
                                                         ----------    ----------    ----------
Gross margin...........................................     312,177       277,715       246,907
Operating expenses.....................................     201,478       177,995       172,407
Depreciation and amortization..........................      25,267        22,148        20,740
Acquisition-related expenses...........................                       253         5,128
                                                         ----------    ----------    ----------
Total operating expenses...............................     226,745       200,396       198,275
                                                         ----------    ----------    ----------
Operating income.......................................      85,432        77,319        48,632
Interest expense and other.............................      27,910        35,355        36,827
                                                         ----------    ----------    ----------
Income before income taxes and extraordinary charge....      57,522        41,964        11,805
Income taxes...........................................      22,585        17,229         4,782
                                                         ----------    ----------    ----------
Income before extraordinary charge.....................      34,937        24,735         7,023
Extraordinary charge, net of income taxes..............         689           406
                                                         ----------    ----------    ----------
Net income.............................................  $   34,248    $   24,329    $    7,023
                                                         ==========    ==========    ==========
Basic earnings per share:
Income before extraordinary charge.....................  $     1.21    $     1.08    $     0.32
Extraordinary charge...................................        (.02)         (.02)
                                                         ----------    ----------    ----------
Net income.............................................  $     1.19    $     1.06    $     0.32
                                                         ==========    ==========    ==========
Diluted earnings per share:
Income before extraordinary charge.....................  $     1.18    $     1.05    $     0.32
Extraordinary charge...................................        (.02)         (.01)*
                                                         ----------    ----------    ----------
Net income.............................................  $     1.16    $     1.04    $     0.32
                                                         ==========    ==========    ==========
Weighted average shares outstanding:
  Basic................................................      28,790        22,969        21,892
  Diluted..............................................      29,594        23,494        22,290
</TABLE>

- ---------------
* Difference due to rounding.

                See Notes to Consolidated Financial Statements.
                                       V-2
<PAGE>   72

                      VWR SCIENTIFIC PRODUCTS CORPORATION

                          CONSOLIDATED BALANCE SHEETS

<TABLE>
<CAPTION>
                                                                   DECEMBER 31,
                                                              ----------------------
                                                                1998         1997
                                                              ---------    ---------
                                                              (THOUSANDS, EXCEPT PER
                                                                   SHARE DATA)
<S>                                                           <C>          <C>
ASSETS
Current assets:
  Trade receivables, less reserves of $3,417 and $2,512.....  $191,068     $180,345
  Other receivables.........................................    24,564        6,632
  Inventories...............................................   140,826      103,445
  Other.....................................................    13,431       11,166
                                                              --------     --------
     Total current assets...................................   369,889      301,588
  Property and equipment -- net.............................    91,072       50,846
  Excess of cost over net assets of businesses
     acquired -- net........................................   439,091      354,961
  Other assets -- net.......................................    11,537       10,171
                                                              --------     --------
                                                              $911,589     $717,566
                                                              ========     ========
LIABILITIES AND SHAREHOLDERS' EQUITY
Current liabilities:
  Bank checks outstanding, less cash in bank................  $  9,658     $ 10,077
  Accounts payable..........................................   102,125       91,887
  Accrued liabilities.......................................    20,560       17,560
                                                              --------     --------
     Total current liabilities..............................   132,343      119,524
                                                              --------     --------
Long-term debt:
  Revolving credit facility.................................   202,490       81,462
  Subordinated debenture....................................   153,175      150,947
                                                              --------     --------
     Total long-term debt...................................   355,665      232,409
                                                              --------     --------
Deferred income taxes and other.............................    40,034       23,626
Shareholders' equity:
  Preferred stock, $1 par value, 25,000,000 shares
     authorized, none issued Common stock, $1 par value,
     120,000,000 shares authorized, 28,967,505 and
     28,487,251 shares issued, respectively.................    28,968       28,487
  Additional paid-in capital................................   287,149      280,068
  Retained earnings.........................................    70,046       35,798
  Treasury stock at cost, 4,978 shares......................       (94)         (94)
  Unamortized ESOP contribution.............................      (795)      (1,144)
  Unamortized restricted stock awards.......................      (142)        (184)
  Accumulated other comprehensive loss......................    (1,585)        (924)
                                                              --------     --------
     Total shareholders' equity.............................   383,547      342,007
                                                              --------     --------
                                                              $911,589     $717,566
                                                              ========     ========
</TABLE>

                See Notes to Consolidated Financial Statements.
                                       V-3
<PAGE>   73

                      VWR SCIENTIFIC PRODUCTS CORPORATION

                     CONSOLIDATED STATEMENTS OF CASH FLOWS

<TABLE>
<CAPTION>
                                                                YEAR ENDED DECEMBER 31,
                                                          -----------------------------------
                                                            1998         1997         1996
                                                          ---------    ---------    ---------
                                                                      (THOUSANDS)
<S>                                                       <C>          <C>          <C>
OPERATING ACTIVITIES
Net income..............................................  $  34,248    $  24,329    $   7,023
Adjustments to reconcile net income to cash provided by
  (used in) operating activities:
  Depreciation and amortization, including deferred debt
     issuance costs.....................................     25,686       23,234       22,051
  Debentures and stock issued in lieu of payment of
     interest...........................................      2,228       12,138       19,114
  Provision for deferred taxes..........................     16,377        7,372        4,284
  Loss on early extinguishment of debt..................      1,138          680
  Change in operating assets and liabilities, net of
     effect of businesses acquired:
     Trade receivables..................................     10,122      (19,110)     (27,723)
     Other receivables..................................    (14,452)         527       (3,851)
     Inventories........................................    (15,206)       3,364      (55,262)
     Other current assets...............................     (2,226)      (5,927)      (2,367)
     Accounts payable...................................      4,172       (1,112)      19,761
     Accrued liabilities and other......................     (2,061)       2,490      (11,162)
                                                          ---------    ---------    ---------
Cash provided by (used in) operating activities.........     60,026       47,985      (28,132)
                                                          ---------    ---------    ---------
INVESTING ACTIVITIES
Acquisition of businesses, net of cash acquired.........   (131,814)                    1,683
Sale of joint venture investment........................                                2,881
Capital expenditures, net...............................    (40,488)     (11,551)     (23,417)
Proceeds from sale of property and equipment............                                5,664
Other...................................................                                 (165)
                                                          ---------    ---------    ---------
Cash used in investing activities.......................  $(172,302)   $ (11,551)   $ (13,354)
                                                          ---------    ---------    ---------
FINANCING ACTIVITIES
Proceeds from long-term debt............................  $ 469,778    $ 224,006    $ 206,788
Repayment of long-term debt.............................   (361,993)    (394,200)    (174,459)
Net proceeds from common stock issuance.................                 132,708
Net change in bank checks outstanding...................       (419)        (197)       8,526
Proceeds from exercise of stock options.................      3,003          560          308
Proceeds from shares issued under Merck KGaA ownership
  rights................................................      3,084          547
Deferred debt issuance costs and other..................     (1,177)         142          323
                                                          ---------    ---------    ---------
Cash provided by (used in) financing activities.........  $ 112,276    $ (36,434)   $  41,486
                                                          ---------    ---------    ---------
Net change in cash......................................          0            0            0
Cash at beginning of year...............................          0            0            0
                                                          ---------    ---------    ---------
Cash at end of year.....................................  $       0    $       0    $       0
                                                          =========    =========    =========
Supplemental disclosures of cash flow information:
Cash paid during the year for:
  Interest, net of 1998 capitalized interest of
     $1,185.............................................  $  24,872    $  20,797    $  18,584
  Income taxes..........................................     17,036        7,101        1,175
</TABLE>

                See Notes to Consolidated Financial Statements.
                                       V-4
<PAGE>   74

                      VWR SCIENTIFIC PRODUCTS CORPORATION

                CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY

<TABLE>
<CAPTION>
                                                                                   UNAMORTIZED
                                                                                      ESOP
                                     COMMON                                       CONTRIBUTION,    ACCUMULATED
                                      STOCK    ADDITIONAL                          RESTRICTED         OTHER
                                     $1 PAR     PAID-IN     RETAINED   TREASURY       STOCK       COMPREHENSIVE
                                      VALUE     CAPITAL     EARNINGS    STOCK        AWARDS       INCOME/LOSS*     TOTAL
                                     -------   ----------   --------   --------   -------------   -------------   --------
                                                              (THOUSANDS, EXCEPT PER SHARE DATA)
<S>                                  <C>       <C>          <C>        <C>        <C>             <C>             <C>
Balance at December 31, 1995.......  $21,068    $137,753    $ 4,457      $ (9)       $(2,468)        $  (712)     $160,089
Comprehensive Income
  Net income.......................                           7,023                                                  7,023
  Other comprehensive income --
    foreign currency translation
    adjustment.....................                                                                       40            40
                                                                                                                  --------
Total Comprehensive Income.........                                                                                  7,063
                                                                                                                  ========
Issuance of 1,230,315 shares of
  common stock as payment for
  debenture interest...............    1,230      14,075                                                            15,305
Allocation of shares to ESOP
  participants.....................                                                      293                           293
Restricted stock awards............        4          52                                 (56)
Amortization of restricted stock...                                                      398                           398
Exercise of stock options..........       44         264                                                               308
Other..............................        1          13         (9)      (36)            12                           (19)
                                     -------    --------    -------      ----        -------         -------      --------
Balance at December 31, 1996.......   22,347     152,157     11,471       (45)        (1,821)           (672)      183,437
                                     =======    ========    =======      ====        =======         =======      ========
Comprehensive Income
  Net income.......................                          24,329                                                 24,329
  Other comprehensive income --
    foreign currency translation
    adjustment.....................                                                                     (252)         (252)
                                                                                                                  --------
Total Comprehensive Income.........                                                                                 24,077
                                                                                                                  ========
Issuance of 6,036,719 shares of
  common stock.....................    6,037     126,671                                                           132,708
Allocation of shares to ESOP
  participants.....................                                                      320                           320
Amortization of restricted stock...                                                      173                           173
Exercise of stock options..........       51         509                                                               560
Shares issued under Merck KGaA
  ownership rights.................       52         495                                                               547
Tax benefit on exercise of stock
  options..........................                  236                                                               236
Other..............................                              (2)      (49)                                         (51)
                                     -------    --------    -------      ----        -------         -------      --------
Balance at December 31, 1997.......   28,487     280,068     35,798       (94)        (1,328)           (924)      342,007
                                     =======    ========    =======      ====        =======         =======      ========
Comprehensive Income
  Net income.......................                          34,248                                                 34,248
  Other comprehensive income --
    foreign currency translation
    adjustment.....................                                                                     (661)         (661)
                                                                                                                  --------
Total Comprehensive Income.........                                                                                 33,587
                                                                                                                  ========
Allocation of shares to ESOP
  participants.....................                                                      349                           349
Amortization of restricted stock...                                                      137                           137
Exercise of stock options..........      238       2,765                                                             3,003
Restricted stock awards............        3          92                                 (95)
Shares issued under Merck KGaA
  ownership rights.................      240       2,844                                                             3,084
Tax benefit on exercise of stock
  options..........................                1,380                                                             1,380
                                     -------    --------    -------      ----        -------         -------      --------
Balance at December 31, 1998.......  $28,968    $287,149    $70,046      $(94)       $  (937)        $(1,585)     $383,547
                                     =======    ========    =======      ====        =======         =======      ========
</TABLE>

- ---------------
* Accumulated other comprehensive income/(loss) consists only of foreign
  currency.

                                       V-5
<PAGE>   75

                      VWR SCIENTIFIC PRODUCTS CORPORATION

                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

1.  SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

  Basis of Presentation

     VWR Scientific Products Corporation ("VWR" or "the Company") distributes
laboratory supplies, chemicals, and equipment to life science, educational and
industrial organizations throughout the United States and Canada. The Company
also distributes critical environment (cleanroom) supplies and apparel to
manufacturers of electronics, medical devices and pharmaceuticals.

     The consolidated financial statements include the accounts of VWR
Scientific Products Corporation and all of its subsidiaries. Significant
intercompany accounts and transactions have been eliminated.

     The preparation of financial statements in conformity with generally
accepted accounting principles requires management to make estimates and
assumptions that affect the amounts reported in the financial statements and
accompanying notes. Actual results could differ from those estimates.

  Capitalization, Depreciation and Amortization

     Property and equipment are recorded at cost. Depreciation is computed using
the straight-line method for financial reporting purposes and, generally,
accelerated methods for income tax purposes. Acquisition and development costs
for significant business systems and related software for internal use are
capitalized and amortized over their estimated useful lives, ranging from two to
twelve years. The Company capitalizes the costs of developing and producing
catalogs, which are used by customers for ordering products. Such costs are
amortized over the period of use, generally two to three years.

  Excess of Cost Over Net Assets of Businesses Acquired

     Excess of cost over net assets of businesses acquired is primarily the
result of the acquisition of the Industrial Distribution Business of Baxter
Healthcare in 1995 and The Science Kit Group of Companies ("Science Kit") in
1998 and is being amortized on a straight-line basis over 40 years. Accumulated
amortization at December 31, 1998 and 1997 was $34.5 million and $23.8 million,
respectively. The carrying value of excess of cost over net assets of businesses
acquired is evaluated periodically in relation to the operating performance and
expected future undiscounted cash flows of the underlying businesses.

  Revenue Recognition

     The Company recognizes revenue when products are shipped.

  Concentrations of Credit Risk

     Trade receivables reflect VWR's diverse customer base and the customer
base's wide geographic dispersion. As a result, at December 31, 1998, the
Company had no significant concentrations of credit risk.

  Foreign Currency Transactions

     The Company utilizes foreign currency contracts to reduce its exposure to
market risks from changes in foreign exchange rates. The Company hedges foreign
currency transactions on a continuous basis for periods consistent with its
committed exposures. The primary purpose of the foreign currency hedging
activities is to protect Canadian purchases of United States supplied goods from
currency exchange rate fluctuations. Unrealized gains and losses from these
contracts are recognized in operations as the related transactions occur. At
December 31, 1998, open foreign exchange contracts were $13.3 million.

                                       V-6
<PAGE>   76
                      VWR SCIENTIFIC PRODUCTS CORPORATION

           NOTES TO CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)

  New Accounting Standards

     In March 1998, the Accounting Standards Executive Committee issued
Statement of Position 98-1 ("SOP 98-1"), "Accounting for the Costs of Computer
Software Developed or Obtained for Internal Use." SOP 98-1 requires all costs
related to the development of internal use software other than those incurred
during the application development stage to be expensed as incurred. Costs
incurred during the application development stage are required to be capitalized
and amortized over the estimated useful life of the software. SOP 98-1 is
effective for the Company's first quarter ending March 31, 1999. Adoption is not
expected to have a material effect on the Company's consolidated financial
statements.

     In June 1998, the Financial Accounting Standards Board issued Statement of
Financial Accounting Standards ("SFAS"), "Accounting for Derivative Instruments
and Hedging Activities." SFAS No. 133 is effective for fiscal years beginning
after June 15, 1999. SFAS No. 133 requires that all derivative instruments be
recorded on the balance sheet at their fair value. Changes in the fair value of
derivatives are recorded each period in current earnings or other comprehensive
income, depending on whether a derivative is designed as part of a hedge
transaction and, if it is, the type of hedge transaction. The Company is
evaluating the effect of this standard on its financial statements.

2.  ACQUISITIONS

     On July 31, 1998, the Company acquired all of the outstanding shares of
Science Kit, a privately held supplier of science education products to school
systems and educational institutions in the United States and Canada, for $110
million, subject to adjustment. Revenues for Science Kit were $66 million in
1997. The acquisition has been accounted for under the purchase method of
accounting and the Company has included Science Kit's results of operations from
the date of the acquisition. The cost of the acquisition has been preliminarily
allocated on the basis of the estimated fair value of the assets acquired and
liabilities assumed. The purchase price was financed by a portion of the
proceeds received from borrowings under the Company's unsecured five-year
revolving credit facility entered into on July 31, 1998.

     In addition, in 1998 the Company acquired two other companies, A.J.
Reynolds Co., Inc. and HPC Scientific & Technology, Inc., for an aggregate
purchase price of $22.6 million. Combined fiscal year 1997 revenues for these
two companies were approximately $32 million. Both were accounted for under the
purchase method of accounting and were financed by borrowings under the
Company's credit facility in place at the date of acquisition.

     The following unaudited pro forma information has been prepared assuming
that the acquisitions had occurred at the beginning of the years presented. Pro
forma adjustments include: increased amortization for the cost over net assets
acquired; increased interest expense from the acquisition debt; and related
income tax effects.

     The following unaudited pro forma information is provided for information
purposes only and does not purport to be indicative of VWR's results of
operations that would actually have been achieved had the acquisitions been
completed on January 1, 1997.

<TABLE>
<CAPTION>
                                                                YEAR ENDED DECEMBER 31,
                                                              ----------------------------
                                                                  1998            1997
                                                              ------------    ------------
                                                              (THOUSANDS, EXCEPT PER SHARE
                                                                         DATA)
<S>                                                           <C>             <C>
Sales.......................................................   $1,402,790      $1,343,399
Net income..................................................   $   31,280      $   24,000
Basic earnings per share....................................   $     1.09      $     1.04
Diluted earnings per share..................................   $     1.06      $     1.02
</TABLE>

                                       V-7
<PAGE>   77
                      VWR SCIENTIFIC PRODUCTS CORPORATION

           NOTES TO CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)

3.  INVENTORIES

     Inventories consist of purchased goods for sale and are valued at the lower
of cost or market. Cost determined using the last-in, first-out (LIFO) method
comprised 95% and 89% of inventory carrying value at December 31, 1998 and 1997,
respectively. Cost of the remaining inventories is determined using the
first-in, first-out (FIFO) method.

     LIFO cost at December 31, 1998 and 1997 was approximately $33.7 million and
$32.9 million, respectively, less than current cost.

4.  FIXED ASSETS

     Net property and equipment at December 31, 1998 and 1997, is:

<TABLE>
<CAPTION>
                                                                1998        1997
                                                              --------    --------
                                                                 (IN THOUSANDS)
<S>                                                           <C>         <C>
Land........................................................  $  2,404    $    738
Buildings...................................................    22,506      15,340
Equipment and computer software.............................   124,478      76,636
Capital additions in process................................     1,257       7,247
                                                              --------    --------
                                                               150,645      99,961
Less accumulated depreciation...............................   (59,573)    (49,115)
                                                              --------    --------
Net property and equipment..................................  $ 91,072    $ 50,846
                                                              ========    ========
</TABLE>

     Depreciation expense for the years ended December 31, 1998, 1997, and 1996,
was $9.9 million, $8.7 million, and $7.2 million, respectively.

5.  LONG-TERM DEBT AND REVOLVING CREDIT FACILITIES

     On July 31, 1998, the Company entered into a $250 million, five-year,
unsecured Revolving Credit Facility ("Credit Facility"). The Credit Facility
replaced the Company's former $150 million secured revolving credit facility
entered into on September 14, 1995. The Credit Facility provides for the ability
to borrow the equivalent in Canadian dollars up to $17 million U.S. dollars. The
Credit Facility provides that the available line of credit will decrease to $225
million in July 2001 and to $200 million in July 2002. The Credit Facility bears
an interest rate based on the London Interbank Offered Rate ("LIBOR") or the
prime rate, plus the applicable margin. The Company is required to pay
commitment fees on the unused portion of the Credit Facility, between .20% and
 .30%. The margin on interest and the commitment fees will vary depending on the
relationship between the Company's earnings before interest, taxes, depreciation
and amortization ("EBITDA") and total debt. The Credit Facility includes various
financial covenants related to total leverage, interest coverage, and net worth.

     On September 15, 1995, the Company issued a debenture ("Debenture") to EM
Laboratories, Incorporated, ("EML") an affiliate of Merck KGaA, Germany in the
principal amount of $135 million. The Debenture has been assigned to another
affiliate of EML. The Debenture matures in a single installment in September
2005 and is callable at face value, at the Company's option, beginning in
September 2000. The Debenture bears interest at 13% per annum, due quarterly.
Until such time as Merck KGaA and its affiliates obtained an ownership of 49.89%
of the aggregate number of issued and outstanding common shares, interest was
payable solely in common shares at a price of $12.44 per share, and thereafter,
until September 1, 1997, interest on the Debenture was deferred, with
accumulated interest thereon, until the Debenture matures. Interest on the
Debenture is payable quarterly in cash after September 1, 1997 through the
maturity date.

                                       V-8
<PAGE>   78
                      VWR SCIENTIFIC PRODUCTS CORPORATION

           NOTES TO CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)

     At December 31, 1998 and 1997, the approximate weighted average interest
rate on outstanding borrowings under the credit facilities was 6.4% and 6.9%,
respectively. Interest expense under the credit facilities for the years ended
December 31, 1998, 1997, and 1996, was $8.5 million, $15.9 million, and $17.6
million, respectively, resulting in a weighted average interest rate of 6.4%,
7.1%, and 7.4%, respectively.

     The carrying value of the Credit Facility approximates its fair value. The
fair value of the Debenture is not readily determinable due to the nature of the
instrument.

     In 1998, the Company recorded an extraordinary charge in the amount of $1.1
million ($0.7 million net of tax) representing the write-off of unamortized debt
issuance costs related to the refinancing of the Company's former $150 million
revolving credit facility. Outstanding borrowings under the term loan portion of
the former credit facility were repaid in 1997 using a portion of the net
proceeds received from the Company's sale of common shares as described in Note
7. As a result, an extraordinary charge was recorded for 1997 of $0.7 million
($0.4 million net of tax) representing the write-off of $0.9 million of
unamortized debt issuance costs related to the early extinguishment of the term
loan under the Company's former credit facility, net of $0.2 million of gains on
the termination of interest rate swap agreements related to the former credit
facility.

     The Company has entered into various interest rate swap agreements with
financial institutions which effectively change the Company's interest rate
exposure on a notional amount of debt from variable rates to fixed rates. The
notional amounts of the swaps are based upon obligations under the Credit
Facility and expected actual debt levels during the term of the Credit Facility.
The Company provides protection to meet actual exposures and does not speculate
in derivatives. At December 31, 1998, the Company had a notional amount of $40
million of swaps in effect. These swaps expire in 1999 and 2000. The amount of
floating rate debt protected by the swaps ranges from $40 million to $10 million
during the period outstanding with fixed rates ranging from 5.9% to 6.4%. Net
receipts or payments under the agreements are recognized as an adjustment to
interest expense. At December 31, 1998, the fair market value of the swap
agreements, which is not recorded in the consolidated financial statements, is a
net payable of approximately $0.2 million. The fair market value of the swap
agreements is based on the present value of the future cash flows determined by
the difference between the contracts' fixed interest rate and the then-current
replacement interest rate. The other parties to the interest rate swap
agreements expose the Company to credit loss in the event of nonperformance
although the Company does not anticipate such nonperformance.

6.  INCOME TAXES

     Taxes on income are based on income before income taxes and extraordinary
charge as follows:

<TABLE>
<CAPTION>
                                                         1998       1997       1996
                                                        -------    -------    -------
                                                                 (THOUSANDS)
<S>                                                     <C>        <C>        <C>
Domestic..............................................  $53,191    $38,148    $10,187
Canada................................................    4,331      3,816      1,618
                                                        -------    -------    -------
                                                        $57,522    $41,964    $11,805
                                                        =======    =======    =======
</TABLE>

                                       V-9
<PAGE>   79
                      VWR SCIENTIFIC PRODUCTS CORPORATION

           NOTES TO CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)

     The provision for income taxes consists of:

<TABLE>
<CAPTION>
                                                          1998       1997       1996
                                                         -------    -------    ------
                                                                 (THOUSANDS)
<S>                                                      <C>        <C>        <C>
Current:
  Federal..............................................  $ 3,014    $ 7,037    $   70
  State................................................      731        697
  Foreign..............................................    2,463      2,123       428
                                                         -------    -------    ------
                                                           6,208      9,857       498
                                                         -------    -------    ------
Deferred:
  Federal..............................................   13,881      5,876     3,460
  State................................................    2,600      1,399       603
  Foreign..............................................     (104)        97       221
                                                         -------    -------    ------
                                                          16,377      7,372     4,284
                                                         -------    -------    ------
Total tax provision....................................  $22,585    $17,229    $4,782
                                                         =======    =======    ======
</TABLE>

     The reconciliation of tax computed at the federal statutory tax rate of 35%
of income before income taxes to the actual income tax provision is as follows:

<TABLE>
<CAPTION>
                                                          1998       1997       1996
                                                         -------    -------    ------
                                                                 (THOUSANDS)
<S>                                                      <C>        <C>        <C>
Statutory tax..........................................  $20,133    $14,687    $4,132
State income taxes net of federal tax benefit..........    2,165      1,362       392
Foreign rate differential..............................      635        667       151
Other -- net...........................................     (348)       513       107
                                                         -------    -------    ------
Total tax provision....................................  $22,585    $17,229    $4,782
                                                         =======    =======    ======
</TABLE>

     Deferred tax liabilities (assets) as of December 31, 1998 and 1997 are
comprised of the following:

<TABLE>
<CAPTION>
                                                               1998       1997
                                                              -------    -------
                                                                 (THOUSANDS)
<S>                                                           <C>        <C>
Depreciation................................................  $14,122    $ 3,438
Pension.....................................................    3,395      3,718
Goodwill amortization.......................................   20,361     14,015
                                                              -------    -------
     Deferred tax liabilities...............................   37,878     21,171
                                                              -------    -------
Postretirement benefits.....................................     (763)      (698)
Other compensation benefits.................................   (1,896)    (1,035)
State net operating loss carryforwards......................     (485)      (683)
Inventory capitalization....................................   (1,337)    (1,610)
Other -- net................................................   (2,264)    (1,097)
                                                              -------    -------
     Deferred tax assets....................................   (6,745)    (5,123)
                                                              -------    -------
Net deferred tax liability..................................  $31,133    $16,048
                                                              =======    =======
</TABLE>

     In 1998 and 1997, tax benefits of $1.4 million and $0.2 million,
respectively related to the exercise of employee stock options were recorded as
additional paid-in capital. Net current deferred tax assets are $5.0 million and
$3.8 million at December 31, 1998 and 1997, respectively. The Company has state
net operating loss carryforwards that expire at various times through 2013.

                                      V-10
<PAGE>   80
                      VWR SCIENTIFIC PRODUCTS CORPORATION

           NOTES TO CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)

7.  SHAREHOLDERS' EQUITY

     Merck KGaA and its affiliates, including EML, beneficially own 49.89% of
the issued and outstanding common shares as of December 31, 1998. In connection
with an April 1995 agreement to purchase securities from the Company, EML
entered into a Standstill Agreement with the Company, pursuant to which EML
agreed that it and its affiliates would not, subject to certain specified
exceptions, for a period of four years, increase its beneficial ownership of the
Company's common shares above 49.89% without the prior consent of the Company.
Under the terms of the Debenture, interest was payable in common shares, at an
issue price per share of $12.44, until Merck KGaA's beneficial ownership reached
49.89%. In addition, upon issuance of stock by the Company, including its stock
incentive plans, Merck KGaA has the option to purchase additional shares from
the Company to retain its 49.89% ownership interest for which the purchase price
equals the price the Company receives for the stock.

     In November 1997, the Company completed a public offering of 3,025,000
common shares and a concurrent private placement with affiliates of Merck KGaA
of 3,011,719 common shares, resulting in proceeds of $132.7 million (net of
issuance costs of $4.6 million). The net proceeds were used to repay the
outstanding amount of the Company's term loan of $88.8 million and $43.9 million
of the revolver, both under the Company's former credit facility.

8.  EARNINGS PER SHARE

     The following table sets forth the computation of basic and diluted
earnings per share (in thousands):

<TABLE>
<CAPTION>
                                                            1998      1997      1996
                                                           ------    ------    ------
<S>                                                        <C>       <C>       <C>
Basic weighted average common shares outstanding.........  28,790    22,969    21,892
Net effect of dilutive stock options.....................     403       263       199
Effect of Merck KGaA ownership rights....................     401       262       199
                                                           ------    ------    ------
Diluted weighted average common shares outstanding.......  29,594    23,494    22,290
                                                           ======    ======    ======
</TABLE>

     Shares issued in connection with the 1997 public offering and concurrent
private placement with affiliates of Merck KGaA totaling approximately 6 million
shares are included in the weighted average shares outstanding for approximately
one month in 1997. Shares issued in payment of Debenture interest during 1996
were included in the share calculation as interest expense was recognized.

9.  STOCK AND INCENTIVE PROGRAMS

     The Company follows Accounting Principles Board ("APB") Opinion No. 25,
"Accounting for Stock Issued to Employees," and related interpretations in
accounting for its employee stock-based compensation. The Company has adopted
the disclosure-only option under SFAS No. 123, "Accounting for Stock-Based
Compensation."

     The Company's stock incentive plans allow for the grant of nonqualified and
incentive stock options or restricted stock awards. In addition to outstanding
options, 572,400 shares were available for issuance at December 31, 1998.

  Stock Options

     Options have been granted to certain officers and managers to purchase
common stock of the Company at its fair market value at the date of grant.
Options contain various vesting provisions ranging from 4 to 9 years. Beginning
in 1995, grants issued vest at the earlier of nine years following issuance or
in 50% allotments based on the performance of the Company's stock over a certain
period of time.

                                      V-11
<PAGE>   81
                      VWR SCIENTIFIC PRODUCTS CORPORATION

           NOTES TO CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)

     Changes in options outstanding were:

<TABLE>
<CAPTION>
                                                                           AVERAGE
                                                               SHARES       PRICE
                                                              ---------    -------
<S>                                                           <C>          <C>
Outstanding at December 31, 1995............................  1,241,601    $11.28
  Exercised.................................................    (43,983)     7.03
  Granted...................................................    189,000     13.25
  Cancelled.................................................    (60,000)    12.00
                                                              ---------    ------
Outstanding at December 31, 1996............................  1,326,618    $11.67
  Exercised.................................................    (51,460)    11.19
  Granted...................................................    167,000     18.75
  Cancelled.................................................    (66,200)    11.82
                                                              ---------    ------
Outstanding at December 31, 1997............................  1,375,958    $12.51
  Exercised.................................................   (237,774)    12.63
  Granted...................................................  1,308,500     32.13
  Cancelled.................................................    (53,500)    22.86
                                                              ---------    ------
Outstanding at December 31, 1998............................  2,393,184    $22.99
                                                              =========    ======
</TABLE>

     At December 31, 1998, there were 1,088,184 options exercisable at exercise
prices ranging from $7.79 to $18.75, with an average exercise price of $12.15.
Exercisable options at December 31, 1998 have a weighted average remaining life
of 6 years. In addition, there were 1,296,000 options outstanding at an exercise
price of $32.13 with a remaining life of 9 years, which were not included in the
computation of diluted earnings per share because the effect would be
antidilutive.

     Pro forma disclosure, as required by SFAS No. 123, regarding net income and
earnings per share has been determined as if the Company had accounted for its
employee stock options under the fair value method. Option valuation models use
highly subjective assumptions to determine the fair value of traded options with
no vesting or trading restrictions. Because options granted under the Company's
Stock Option Plans have vesting requirements and cannot be traded, and because
changes in the assumptions can materially affect the fair value estimate, in
management's opinion, the existing valuation models do not necessarily provide a
reliable measure of the fair value of its employee stock options.

     The fair value for these options was estimated at the date of grant using a
Black-Scholes option pricing model with the following weighted average
assumptions for 1998, 1997 and 1996: risk-free interest rate of 5.3%, 6.4% and
5.6%, respectively; no dividends; a volatility factor of the expected market
price of the Company's common stock of 0.683, 0.476, and 0.416, respectively;
and a weighted average expected life of the options of 7 years.

     For purposes of pro forma disclosures, the estimated fair value of the
options ($22.37, $10.90, and $6.99 for the 1998, 1997 and 1996 grants,
respectively) is amortized to expense over the options' assumed vesting period.
SFAS No. 123 requires only that the income effects of options granted beginning
in 1995 be included in the pro forma disclosures. Since a portion of the
Company's stock options vest over several years and additional options may be
granted each year, the pro forma effect on net income reported below is not

                                      V-12
<PAGE>   82
                      VWR SCIENTIFIC PRODUCTS CORPORATION

           NOTES TO CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)

representative of the effect of fair value stock option expense on future years'
pro forma net income. The Company's pro forma information follows:

<TABLE>
<CAPTION>
                                                              YEARS ENDED DECEMBER 31,
                                                         ----------------------------------
                                                           1998         1997         1996
                                                         ---------    ---------    --------
                                                         (THOUSANDS, EXCEPT PER SHARE DATA)
<S>                                                      <C>          <C>          <C>
Pro forma net income...................................   $30,857      $21,255      $6,152
Pro forma basic earnings per share.....................      1.07         0.93        0.28
Pro forma diluted earnings per share...................      1.06         0.90        0.28
</TABLE>

  Savings Investment Plan

     The Company has a savings investment plan whereby it matches 50% of the
employee's contribution up to 3% of the employee's pay. Depending on the
Company's profitability in any year, the Company will make an additional match
of 50% of the employee contributions between 3% and 7.5% of their pay. Expenses
under this plan for the years ended December 31, 1998, 1997, and 1996, were $1.1
million, $0.9 million, and $0.9 million, respectively.

  Employee Stock Ownership Plan

     In September 1990, the Company established an employee stock ownership plan
(ESOP) by, in effect, contributing 400,000 treasury shares ($2.9 million fair
value) to the ESOP of which 290,360 shares have been allocated to participants
at December 31, 1998. All domestic full-time and part-time employees, except
certain union employees, are eligible to participate in the plan.

     The ESOP shares will be allocated equally to individual participants'
accounts over a period up to ten years. Vesting occurs equally over an
employment period of five years at which time the employee is 100% vested in the
plan. The total number of shares to be allocated in a year is the higher of an
amount based on the Company's profitability or the minimum allocation required
per the ESOP agreement. Expenses are recognized based on shares allocated for
the year and are reduced for dividends paid, if any, on unallocated shares.

                                      V-13
<PAGE>   83
                      VWR SCIENTIFIC PRODUCTS CORPORATION

           NOTES TO CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)

10.  POSTRETIREMENT BENEFITS

  Pension Plan

     The Company has a defined benefit pension plan covering substantially all
of its domestic employees, except for employees covered by independently
operated collective bargaining plans. The following table summarizes the balance
sheet impact, including the benefit obligations, assets, funded status and rate
assumptions associated with the Company's pension plan.

<TABLE>
<CAPTION>
                                                               1998       1997
                                                              -------    -------
                                                                 (THOUSANDS)
<S>                                                           <C>        <C>
Change in benefit obligation:
  Benefit obligation at January 1...........................  $53,158    $44,927
  Service cost..............................................    2,947      2,179
  Interest cost.............................................    4,355      3,587
  Plan amendments...........................................      689          0
  Actuarial losses..........................................    7,527      4,950
  Acquisitions..............................................    6,146          0
  Benefits paid.............................................   (2,395)    (2,485)
                                                              -------    -------
Benefit obligation at December 31...........................  $72,427    $53,158
                                                              -------    -------
Change in plan assets:
  Fair value of plan assets at January 1....................  $62,339    $50,043
  Actual return on plan assets..............................   13,421     12,272
  Company contributions.....................................      928      2,509
  Acquisitions..............................................    8,527          0
  Benefits paid.............................................   (2,395)    (2,485)
                                                              -------    -------
Fair value of plan assets at December 31....................  $82,820    $62,339
                                                              -------    -------
Funded status of plans:.....................................  $10,393    $ 9,181
  Unrecognized transition (asset)...........................      164        216
  Unrecognized net (gain) loss..............................   (1,181)    (1,481)
  Unrecognized prior service cost...........................      382       (362)
                                                              -------    -------
Prepaid benefit cost........................................  $ 9,758    $ 7,554
                                                              =======    =======
Assumptions as of December 31:
  Discount rate.............................................    7.00%      7.50%
  Assumed rate of return on plan assets.....................   10.00%     10.00%
  Assumed annual rate of compensation increase..............    4.00%      4.00%
                                                              =======    =======
</TABLE>

                                      V-14
<PAGE>   84
                      VWR SCIENTIFIC PRODUCTS CORPORATION

           NOTES TO CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)

     Net periodic pension cost includes the following components.

<TABLE>
<CAPTION>
                                                               1998       1997       1996
                                                              -------    -------    -------
                                                                       (THOUSANDS)
<S>                                                           <C>        <C>        <C>
Service cost................................................  $ 2,947    $ 2,180    $ 2,234
Interest cost...............................................    4,355      3,587      3,289
Assumed return on plan assets...............................   (6,381)    (4,983)    (4,305)
Amortization of transition asset............................       16         51         51
Amortization of prior service cost..........................      (57)      (101)      (101)
Recognition of actuarial (gains) losses.....................        0          2        233
                                                              -------    -------    -------
Net periodic pension cost...................................  $   880    $   736    $ 1,401
                                                              =======    =======    =======
</TABLE>

     The Company maintains a supplemental pension plan for certain senior
officers. Expenses incurred under this plan in 1998, 1997, and 1996 were
approximately $0.1 million, $0.1 million, and $0.2 million, respectively.

     Certain employees are covered under union-sponsored, collectively bargained
plans. Expenses under these plans for each of the years ended December 31, 1998,
1997, and 1996, were $0.6 million, $0.3 million, and $0.5 million, respectively,
as determined in accordance with negotiated labor contracts.

  Retiree Medical Benefits Program

     The Company provides health benefits to certain retirees and a limited
number of active employees and their spouses. These benefit plans are unfunded.
The accumulated postretirement benefit obligation was $1.8 million and $1.7
million at December 31, 1998 and 1997, respectively. The weighted average
discount rate used in determining the accumulated postretirement benefit
obligation was 7.0% and 7.5% at December 31, 1998 and 1997, respectively. The
annual expense for such benefits was not material.

11.  LEASES

     The Company leases office and warehouse space and computer equipment under
operating leases, certain of which extend up to 16 years, subject to renewal
options. Rental expense was $10.9 million, $9.8 million, and $9.8 million for
the years ended December 31, 1998, 1997, and 1996, respectively.

     Future minimum lease payments as of December 31, 1998, under noncancelable
operating leases having initial lease terms of more than one year are:

<TABLE>
<CAPTION>
                                                   (THOUSANDS)
                                                   -----------
<S>                                                <C>
Years Ending December 31
     1999........................................    $ 8,096
     2000........................................      7,277
     2001........................................      6,065
     2002........................................      5,482
     2003........................................      3,914
     Thereafter..................................     25,041
                                                     -------
Total minimum payments...........................    $55,875
                                                     =======
</TABLE>

                                      V-15
<PAGE>   85
                      VWR SCIENTIFIC PRODUCTS CORPORATION

           NOTES TO CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)

12.  CONTINGENCIES AND COMMITMENTS

     The Company is involved in various environmental, contractual, and product
liability cases and claims, which are considered routine to the Company's
business. In the opinion of management, the potential financial impact of these
matters is not material to the consolidated financial statements.

     The Company is party to various distribution agreements which require the
Company to purchase a minimum dollar amount of products. The minimum for 1998
was $100 million. The accumulated shortfall under these agreements at December
31, 1998 was approximately $20 million. The Company has renegotiated or is in
the process of renegotiating certain of these contracts and the Company expects
that the accumulated deficiency will be satisfied through a combination of
purchases and contract extensions. Obligations under these contracts for the
years 1999 and 2000 are expected to be $92 million and $120 million,
respectively. Purchases under this contract are not expected to have a material
effect on the Company's financial condition or results of operations for 1999.

13.  TRANSACTIONS WITH AFFILIATES

     In the ordinary course of business, the Company purchases inventory from
affiliates of Merck KGaA. Such purchases represent less than 5% of total
purchases.

14.  QUARTERLY FINANCIAL DATA (UNAUDITED)

<TABLE>
<CAPTION>
                                                                                   BASIC      DILUTED
                                                                         NET     EARNINGS    EARNINGS
                                               GROSS      OPERATING    INCOME     (LOSS)      (LOSS)
                                  SALES        MARGIN      INCOME      (LOSS)    PER SHARE   PER SHARE
                                ----------    --------    ---------    -------   ---------   ---------
                                                  (THOUSANDS, EXCEPT PER SHARE DATA)
<S>                             <C>           <C>         <C>          <C>       <C>         <C>
Year Ended -- December 31,
  1998
  First Quarter...............  $  320,478    $ 71,638     $19,612     $ 7,918     $ .28       $ .27
  Second Quarter..............     330,998      73,330      20,530       8,826       .31         .30
  Third Quarter...............     360,515      86,003      27,313      11,029       .38         .37
  Fourth Quarter..............     337,957      81,206      17,977       6,475       .22         .22
                                ----------    --------     -------     -------     -----       -----
Total.........................  $1,349,948    $312,177     $85,432     $34,248     $1.19       $1.16
                                ==========    ========     =======     =======     =====       =====
Year Ended -- December 31,
  1997
  First Quarter...............  $  290,826    $ 63,416     $15,393     $ 3,551     $ .16       $ .16
  Second Quarter..............     310,513      68,504      19,881       6,080       .27         .27
  Third Quarter...............     329,079      74,113      22,984       8,395       .38         .37
  Fourth Quarter..............     314,377      71,682      19,061       6,303       .25         .25
                                ----------    --------     -------     -------     -----       -----
Total.........................  $1,244,795    $277,715     $77,319     $24,329     $1.06       $1.04*
                                ==========    ========     =======     =======     =====       =====
</TABLE>

NOTE:  The first quarter of 1997 includes $253 of acquisition-related expenses
from the Baxter Industrial acquisition. The third quarter of 1998 and the fourth
quarter of 1997 include extraordinary charges of $689 (net of tax) or $0.02 per
basic and diluted share, and $406 (net of tax) or $0.02 per basic share and
$0.01 per diluted share, respectively, due to the early extinguishment of debt.

* The sum of the quarterly earnings per share does not equal the total earnings
  per share due to different weighted average share amounts outstanding for
  quarterly and annual reporting purposes.

                                      V-16
<PAGE>   86

                         REPORT OF INDEPENDENT AUDITORS

To the Shareholders of VWR Scientific Products Corporation:

     We have audited the accompanying consolidated balance sheets of VWR
Scientific Products Corporation as of December 31, 1998 and 1997, and the
related consolidated statements of operations, shareholders' equity, and cash
flows for each of the three years in the period ended December 31, 1998. Our
audits also include the financial statement schedule listed in the index at Item
14(a). These financial statements and schedule are the responsibility of the
Company's management. Our responsibility is to express an opinion on these
financial statements and schedule based on our audits.

     We conducted our audits in accordance with generally accepted auditing
standards. Those standards require that we plan and perform the audit to obtain
reasonable assurance about whether the financial statements are free of material
misstatement. An audit includes examining, on a test basis, evidence supporting
the amounts and disclosures in the financial statements. An audit also includes
assessing the accounting principles used and significant estimates made by
management as well as evaluating the overall financial statement presentation.
We believe that our audits provide a reasonable basis for our opinion.

     In our opinion, the consolidated financial statements referred to above
present fairly, in all material respects, the consolidated financial position of
VWR Scientific Products Corporation at December 31, 1998 and 1997, and the
consolidated results of its operations and its cash flows for each of the three
years in the period ended December 31, 1998, in conformity with generally
accepted accounting principles. Also, in our opinion, the related financial
statement schedule, when considered in relation to the basic financial
statements taken as a whole, presents fairly in all material respects the
information set forth therein.

                                          By

                                          LOGO
                                          ERNST & YOUNG LLP

Philadelphia, Pennsylvania
February 25, 1999

                                      V-17
<PAGE>   87

                                  SCHEDULE VI

                INTERIM FINANCIAL STATEMENTS OF THE COMPANY FOR
                  THE THREE MONTH PERIOD ENDED MARCH 31, 1999

                      VWR SCIENTIFIC PRODUCTS CORPORATION

                     CONDENSED CONSOLIDATED BALANCE SHEETS

<TABLE>
<CAPTION>
                                                              MARCH 31, 1999    DECEMBER 31, 1998
                                                              --------------    -----------------
                                                               (UNAUDITED)
                                                                          (THOUSANDS)
<S>                                                           <C>               <C>
ASSETS
Trade receivables, net......................................     $231,746           $191,068
Other receivables...........................................        8,584             24,564
Inventories.................................................      125,442            140,826
Other.......................................................       16,424             13,431
                                                                 --------           --------
Total current assets........................................      382,196            369,889
Property and equipment, net.................................       91,580             91,072
Excess of cost over net assets of businesses acquired and
  other assets, net.........................................      449,707            450,628
                                                                 --------           --------
                                                                 $923,483           $911,589
                                                                 ========           ========
LIABILITIES AND SHAREHOLDERS' EQUITY
Bank checks outstanding, less cash in bank..................     $  3,228           $  9,658
Accounts payable and accrued liabilities....................      139,684            122,685
                                                                 --------           --------
Total current liabilities...................................      142,912            132,343
Revolving credit facility...................................      197,391            202,490
Debenture...................................................      153,594            153,175
                                                                 --------           --------
Total long-term debt........................................      350,985            355,665
Deferred income taxes and other.............................       40,110             40,034
Shareholders' equity........................................      389,476            383,547
                                                                 --------           --------
                                                                 $923,483           $911,589
                                                                 ========           ========
</TABLE>

           See Notes to Condensed Consolidated Financial Statements.
                                      VI-1
<PAGE>   88

                      VWR SCIENTIFIC PRODUCTS CORPORATION

                     CONSOLIDATED STATEMENTS OF OPERATIONS

<TABLE>
<CAPTION>
                                                                THREE MONTHS ENDED
                                                                    MARCH 31,
                                                              ----------------------
                                                                1999         1998
                                                              ---------    ---------
                                                                   (UNAUDITED)
                                                                   (THOUSANDS,
                                                              EXCEPT PER SHARE DATA)
<S>                                                           <C>          <C>
Sales.......................................................  $360,265     $320,478
Cost of sales...............................................   277,178      248,840
                                                              --------     --------
Gross margin................................................    83,087       71,638
Operating expenses..........................................    55,719       45,979
Depreciation and amortization...............................     7,388        6,047
                                                              --------     --------
Total operating expenses....................................    63,107       52,026
Operating income............................................    19,980       19,612
Interest expense............................................     7,841        6,249
                                                              --------     --------
Income before income taxes..................................    12,139       13,363
Income taxes................................................     4,855        5,445
                                                              --------     --------
Net income..................................................  $  7,284     $  7,918
                                                              ========     ========
Earnings per share:
Basic earnings per share....................................  $   0.25     $   0.28
Diluted earnings per share..................................  $   0.25     $   0.27
Basic weighted average number of common shares
  outstanding...............................................    28,963       28,592
Diluted weighted average number of common shares
  outstanding...............................................    29,501       29,526
</TABLE>

           See Notes to Condensed Consolidated Financial Statements.
                                      VI-2
<PAGE>   89

                      VWR SCIENTIFIC PRODUCTS CORPORATION

                CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS

<TABLE>
<CAPTION>
                                                               THREE MONTHS ENDED
                                                                   MARCH 31,
                                                              --------------------
                                                                1999        1998
                                                              --------    --------
                                                                  (UNAUDITED)
                                                                  (THOUSANDS)
<S>                                                           <C>         <C>
OPERATING ACTIVITIES:
Net income..................................................  $  7,284    $  7,918
Adjustments to reconcile net income to cash provided by
  operating activities:
Depreciation and amortization, including deferred debt
  issuance costs............................................     7,451       6,179
Debentures issued in lieu of payment of interest............       419         560
Changes in assets and liabilities:
  Receivables...............................................   (28,178)    (10,927)
  Inventories...............................................    15,144      (2,893)
  Other current assets......................................    (4,517)     (1,635)
  Accounts payable and other................................    15,465      27,574
  Deferred taxes and other..................................        91       1,330
                                                              --------    --------
Cash provided by operating activities.......................    13,159      28,106
                                                              --------    --------
INVESTING ACTIVITIES:
Additions to property and equipment, net....................    (3,340)     (6,834)
Acquisition of businesses...................................     2,317
Other.......................................................      (767)
                                                              --------    --------
Cash used in investing activities...........................    (1,790)     (6,834)
                                                              --------    --------
FINANCING ACTIVITIES:
Proceeds from long-term debt................................    60,675      40,401
Repayment of long-term debt.................................   (65,774)    (62,374)
Net change in bank checks outstanding.......................    (6,430)     (1,856)
Proceeds from exercise of stock options.....................                 1,288
Proceeds from shares issued under Merck KGaA ownership
  rights....................................................                 1,256
Other.......................................................       160          13
                                                              --------    --------
Cash used in financing activities...........................   (11,369)    (21,272)
                                                              --------    --------
Net change in cash..........................................         0           0
Cash at beginning of period.................................         0           0
                                                              --------    --------
Cash at end of period.......................................  $      0    $      0
                                                              ========    ========
Supplemental disclosures of cash flow information:
Cash paid (received) during period for:
  Interest..................................................  $  7,537    $  6,119
  Income taxes..............................................  $(10,603)   $ (1,217)
</TABLE>

           See Notes to Condensed Consolidated Financial Statements.
                                      VI-3
<PAGE>   90

                      VWR SCIENTIFIC PRODUCTS CORPORATION

              NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS
                                  (UNAUDITED)

1.  BASIS OF PRESENTATION

     The accompanying unaudited condensed consolidated financial statements of
VWR Scientific Products Corporation (the Company) have been prepared in
accordance with generally accepted accounting principles for interim financial
information and with the instructions to Form 10-Q and Article 10 of Regulation
S-X. Accordingly, they do not include all of the information and footnotes
required by generally accepted accounting principles for complete financial
statements. In the opinion of management, all adjustments (consisting of only
normal recurring accruals) considered necessary for a fair presentation have
been included. Operating results for the three months ended March 31, 1999 are
not necessarily indicative of the results which may be expected for the year
ended December 31, 1999. Refer to the consolidated financial statements and
footnotes thereto included in the Company's 1998 Annual Report on Form 10-K for
further information.

  New Accounting Standards

     Effective January 1, 1999, the Company adopted Accounting Standards
Executive Committee Statement of Position 98-1 (SOP 98-1), Accounting for the
Costs of Computer Software Developed or Obtained for Internal Use. SOP 98-1
requires all costs related to the development of internal use software other
than those incurred during the application development stage to be expensed as
incurred. Costs incurred during the application development stage are required
to be capitalized and amortized over the estimated useful life of the software.
Adoption is not expected to have a material effect on the Company's consolidated
financial statements.

     In June 1998, the Financial Accounting Standards Board issued Statement of
Financial Accounting Standards, Accounting for Derivative Instruments and
Hedging Activities, (SFAS No. 133). SFAS No. 133 is effective for fiscal years
beginning after June 15, 1999. SFAS No. 133 requires that all derivative
instruments be recorded on the balance sheet at their fair value. Changes in the
fair value of derivatives are recorded each period in current earnings or other
comprehensive income, depending on whether a derivative is designed as part of a
hedge transaction and, if it is, the type of hedge transaction. The Company is
evaluating the effect of this standard on its financial statements.

2.  INVENTORY PRICING

     Inventory valued using the LIFO method comprised approximately 95% of
inventory at March 31, 1999 and December 31, 1998. Cost of the remaining
inventories is determined using the FIFO method. Because the actual inventory
determination under the LIFO method is an annual calculation, interim financial
results are based on estimated LIFO amounts and are subject to final year-end
LIFO inventory adjustments. Inventory values under the LIFO method at March 31,
1999 and December 31, 1998 were approximately $35.0 million and $33.7 million,
respectively, less than current cost.

                                      VI-4
<PAGE>   91
                      VWR SCIENTIFIC PRODUCTS CORPORATION

      NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)
                                  (UNAUDITED)

3.  EARNINGS PER SHARE

     The following table sets forth the computation of basic and diluted
earnings per share:

<TABLE>
<CAPTION>
                                                              THREE MONTHS ENDED
                                                                  MARCH 31,
                                                              ------------------
                                                               1999       1998
                                                              -------    -------
                                                                 (THOUSANDS)
<S>                                                           <C>        <C>
Basic weighted average common shares outstanding............  $28,963    $28,592
Net effect of dilutive stock options........................      269        468
Effect of Merck KGaA ownership rights.......................      269        466
                                                              -------    -------
Diluted weighted average common shares outstanding..........  $29,501    $29,526
                                                              =======    =======
</TABLE>

     Upon issuance of stock by the Company, including its stock incentive plans,
Merck KGaA has the option to purchase additional shares from the Company to
retain its 49.89% ownership interest pursuant to a Standstill Agreement.

     There were 1,296,000 options outstanding at an exercise price of $32.13
which were not included in the computation of diluted earnings per share because
the effect would be antidilutive.

4.  COMPREHENSIVE INCOME

     Comprehensive income is comprised of net income and other comprehensive
income. Other comprehensive income includes certain changes in equity that are
excluded from net income, such as translation adjustments. Comprehensive income
for the three months ended March 31, 1999 and 1998 was $5.9 million and $7.9
million, respectively.

                                      VI-5
<PAGE>   92

     Facsimile copies of the Letter of Transmittal, properly completed and duly
executed, will be accepted. The Letter of Transmittal, Share Certificates and
any other required documents should be sent or delivered by each shareholder of
the Company or his or her broker, dealer, commercial bank, trust company or
other nominee to the Depositary as follows:

                        The Depositary for the Offer is:

                       IBJ WHITEHALL BANK & TRUST COMPANY

<TABLE>
<S>                                <C>                                <C>
             By Mail:                  By Facsimile Transmission:       By Hand or Overnight Delivery:
           P.O. Box 84              (for Eligible Institutions only)        One State Street Plaza
      Bowling Green Station                  (212) 858-2611                New York, New York 10004
  New York, New York 10274-0084                                          Attn: Securities Processing
 Attn: Reorganization Operations         Confirm by Telephone:          Window, Subcellar One, (SC-1)
             Department
                                             (212) 858-2103
</TABLE>

     Questions and requests for assistance may be directed to the Information
Agent or the Dealer Manager at their respective addresses and telephone numbers
listed below. Additional copies of this Offer to Purchase and the related Letter
of Transmittal and other tender offer materials may be obtained from the
Information Agent. You may also contact your broker, dealer, commercial bank or
trust company for assistance concerning the Offer.

                    The Information Agent for the Offer is:
                           Beacon Hill Partners, Inc.

                         90 Broad Street -- 20th Floor
                            New York, New York 10004
                 Banks and Brokers Call Collect: (212) 843-8500
                   All Others Call Toll-Free: (800) 357-8212

                      The Dealer Manager for the Offer is:
                                LEHMAN BROTHERS

                          Three World Financial Center
                                200 Vesey Street
                            New York, New York 10285
                 Call Collect: (212) 526-5580 or (212) 526-2843

<PAGE>   1

                             LETTER OF TRANSMITTAL
                        TO TENDER SHARES OF COMMON STOCK

                                       OF

                      VWR SCIENTIFIC PRODUCTS CORPORATION
             PURSUANT TO THE OFFER TO PURCHASE DATED JUNE 14, 1999

                                       BY

                              EM SUBSIDIARY, INC.,
                          A WHOLLY OWNED SUBSIDIARY OF

                         EM LABORATORIES, INCORPORATED,
                           AN INDIRECT SUBSIDIARY OF

                         MERCK KGaA, DARMSTADT, GERMANY

  THE OFFER AND WITHDRAWAL RIGHTS WILL EXPIRE AT 12:00 MIDNIGHT, NEW YORK CITY
         TIME, ON TUESDAY, JULY 13, 1999, UNLESS THE OFFER IS EXTENDED.

                        The Depositary for the Offer is:

                       IBJ WHITEHALL BANK & TRUST COMPANY

<TABLE>
<S>                                <C>                                <C>
             By Mail:                  By Facsimile Transmission:       By Hand or Overnight Delivery:
           P.O. Box 84              (for Eligible Institutions only)        One State Street Plaza
      Bowling Green Station                  (212) 858-2611                New York, New York 10004
  New York, New York 10274-0084                                        Attention: Securities Processing
    Attention: Reorganization            Confirm by Telephone:          Window, Subcellar One, (SC-1)
      Operations Department                  (212) 858-2103
</TABLE>

     DELIVERY OF THIS LETTER OF TRANSMITTAL TO AN ADDRESS OTHER THAN AS SET
FORTH ABOVE, OR TRANSMISSIONS OF INSTRUCTIONS VIA A FACSIMILE NUMBER OTHER THAN
AS SET FORTH ABOVE, WILL NOT CONSTITUTE A VALID DELIVERY.

     THE INSTRUCTIONS ACCOMPANYING THIS LETTER OF TRANSMITTAL SHOULD BE READ
CAREFULLY BEFORE THIS LETTER OF TRANSMITTAL IS COMPLETED.

     This Letter of Transmittal is to be completed by shareholders, either if
certificates for Shares (as defined below) are to be forwarded herewith or,
unless an Agent's Message (as defined in the Offer to Purchase (as defined
below)) is utilized, if tenders of Shares are to be made by book-entry transfer
into the account of the IBJ Whitehall Bank & Trust Company, as Depositary (the
"Depositary"), at The Depository Trust Company ("DTC" or the "Book-Entry
Transfer Facility") pursuant to the procedures set forth in Section 3 of the
Offer to Purchase. Shareholders who tender Shares by book-entry transfer are
referred to herein as "Book-Entry Shareholders."

     Holders of Shares whose certificates for such Shares (the "Share
Certificates") are not immediately available or who cannot deliver the Share
Certificates and all other required documents to the Depositary prior to the
Expiration Date (as defined in Section 1 of the Offer to Purchase), or who
cannot complete the procedure for book-entry transfer on a timely basis, must
tender their Shares according to the guaranteed delivery procedure set forth in
Section 3 of the Offer to Purchase. See Instruction 2. DELIVERY OF DOCUMENTS TO
THE BOOK-ENTRY TRANSFER FACILITY DOES NOT CONSTITUTE DELIVERY TO THE DEPOSITARY.
<PAGE>   2

<TABLE>
<CAPTION>
- ---------------------------------------------------------------------------------------------------------------------------
                                              DESCRIPTION OF SHARES TENDERED
- ---------------------------------------------------------------------------------------------------------------------------
      NAME(S) AND ADDRESS(ES) OF REGISTERED HOLDER(S)                   SHARE CERTIFICATE(S) AND SHARES TENDERED
       (PLEASE FILL IN, IF BLANK, EXACTLY AS NAME(S)                       (ATTACH ADDITIONAL SIGNED LIST IF
                APPEAR(S) ON CERTIFICATE(S))                                           NECESSARY)
- ---------------------------------------------------------------------------------------------------------------------------
                                                                                      TOTAL NUMBER
                                                                    SHARES             OF SHARES              NUMBER
                                                                 CERTIFICATE         REPRESENTED BY         OF SHARES
                                                                  NUMBER(S)*         CERTIFICATE(S)         TENDERED**
<S>                                                          <C>                  <C>                  <C>
                                                             ----------------------------------------------------------
                                                             ----------------------------------------------------------
                                                             ----------------------------------------------------------
                                                             ----------------------------------------------------------
                                                             ----------------------------------------------------------
                                                             ----------------------------------------------------------
                                                                TOTAL SHARES:
- ---------------------------------------------------------------------------------------------------------------------------
 *  NEED NOT BE COMPLETED BY BOOK-ENTRY SHAREHOLDERS.
 ** UNLESS OTHERWISE INDICATED, ALL SHARES REPRESENTED BY CERTIFICATES DELIVERED TO THE DEPOSITARY WILL BE DEEMED TO HAVE
    BEEN TENDERED. SEE INSTRUCTION 4.
- ---------------------------------------------------------------------------------------------------------------------------
</TABLE>

                    NOTE: SIGNATURES MUST BE PROVIDED BELOW
              PLEASE READ THE ACCOMPANYING INSTRUCTIONS CAREFULLY

[ ] CHECK HERE IF SHARES ARE BEING TENDERED BY BOOK-ENTRY TRANSFER MADE TO AN
    ACCOUNT MAINTAINED BY THE DEPOSITARY WITH THE BOOK-ENTRY TRANSFER FACILITY
    AND COMPLETE THE FOLLOWING (ONLY PARTICIPANTS IN THE BOOK-ENTRY TRANSFER
    FACILITY MAY DELIVER SHARES BY BOOK-ENTRY TRANSFER):

   Name of Tendering Institution
- --------------------------------------------------------------------------------

   Check box of Book-Entry Transfer Facility:
   [ ] The Depository Trust Company

   Account Number                         Transaction Code Number
- ---------------------------------     ---------------------------------

[ ] CHECK HERE IF SHARES ARE BEING TENDERED PURSUANT TO A NOTICE OF GUARANTEED
    DELIVERY PREVIOUSLY SENT TO THE DEPOSITARY AND COMPLETE THE FOLLOWING:

   Name(s) of Registered Owner(s):
- -------------------------------------------------------------------------------

   Window Ticket Number (if any):
- -------------------------------------------------------------------------------

   Date of Execution of Notice of Guaranteed Delivery:
- -------------------------------------------------------------------------------

   Name of Institution that Guaranteed Delivery:
- -------------------------------------------------------------------------------

   If delivery by Book-Entry Transfer, check box of Book-Entry Transfer
Facility:
   [ ] The Depository Trust Company

   Account Number                         Transaction Code Number
- ---------------------------------    ---------------------------------

                                        2
<PAGE>   3

Ladies and Gentlemen:

     The undersigned hereby tenders to EM Subsidiary, Inc., a Pennsylvania
corporation ("Purchaser") and a wholly owned subsidiary of EM Laboratories,
Incorporated, a New York corporation ("Parent"), which is an indirect subsidiary
of Merck KGaA, a German company, the above-described shares of Common Stock, par
value $1.00 per share (the "Shares"), of VWR Scientific Products Corporation, a
Pennsylvania corporation (the "Company"), at a purchase price of $37.00 per
Share, net to the seller in cash, without interest thereon, upon the terms and
subject to the conditions set forth in the Offer to Purchase dated June 14, 1999
(the "Offer to Purchase") and in this Letter of Transmittal (which, together
with any supplements or amendments thereto, collectively constitute the
"Offer"). The undersigned understands that Purchaser reserves the right to
transfer or assign, in whole or from time to time in part, to one or more of its
affiliates, the right to purchase all or any portion of the Shares tendered
pursuant to the Offer, receipt of which is hereby acknowledged.

     Subject to, and effective upon, acceptance for payment for the Shares
tendered herewith in accordance with the terms of the Offer, the undersigned
hereby sells, assigns and transfers to, or upon the order of, Purchaser all
right, title and interest in and to all of the Shares that are being tendered
hereby and any and all dividends, distributions (including additional Shares) or
rights declared, paid or issued with respect to the tendered Shares on or after
the date hereof and payable or distributable to the undersigned on a date prior
to the transfer to the name of Purchaser or nominee or transferee of Purchaser
on the Company's stock transfer records of the Shares tendered herewith
(collectively, a "Distribution"), and appoints the Depositary the true and
lawful agent and attorney-in-fact of the undersigned with respect to such Shares
(and any Distribution) with full power of substitution (such power of attorney
being deemed to be an irrevocable power coupled with an interest) to (a) deliver
such Share Certificates (as defined herein) (and any Distribution) or transfer
ownership of such Shares (and any Distribution) on the account books maintained
by the Book-Entry Transfer Facility, together in either case with appropriate
evidences of transfer, to the Depositary for the account of Purchaser, (b)
present such Shares (and any Distribution) for transfer on the books of the
Company and (c) receive all benefits and otherwise exercise all rights of
beneficial ownership of such Shares (and any Distribution), all in accordance
with the terms and subject to the conditions of the Offer.

     The undersigned irrevocably appoints designees of Purchaser as such
shareholder's attorneys-in-fact and proxies, with full power of substitution, to
the full extent of such shareholder's rights with respect to the Shares tendered
by such shareholder and accepted for payment by Purchaser (and with respect to
any and all other Shares or other securities issued or issuable in respect of
such Shares on or after the date hereof). All such powers of attorney and
proxies shall be considered irrevocable and coupled with an interest in the
tendered Shares. Such appointment shall be effective when, and only to the
extent that, Purchaser accepts such Shares for payment. Upon such acceptance for
payment, all prior powers of attorney and proxies given by such shareholder with
respect to such Shares (and such other Shares and securities) shall be revoked
without further action, and no subsequent powers of attorney and proxies may be
given nor any subsequent written consents executed (and, if given or executed,
shall not be deemed effective). The designees of Purchaser shall, with respect
to the Shares for which such appointment is effective, be empowered to exercise
all voting and other rights of such shareholder as they in their sole discretion
may deem proper at any annual or special meeting of the Company's shareholders
or any adjournment or postponement thereof, by written consent in lieu of any
such meeting or otherwise. Purchaser reserves the right to require that, in
order for Shares to be deemed validly tendered, immediately upon Purchaser's
payment for such Shares, Purchaser must be able to exercise full voting rights
with respect to such Shares and other securities, including voting at any
meeting of shareholders.

     The undersigned hereby represents and warrants that (a) the undersigned has
full power and authority to tender, sell, assign and transfer the Shares (and
any Distribution) tendered hereby and (b) when the Shares are accepted for
payment by Purchaser, Purchaser shall acquire good, marketable and unencumbered
title to the Shares (and any Distribution), free and clear of all liens,
restrictions, charges and encumbrances, and the same shall not be subject to any
adverse claim. The undersigned, upon request, shall execute and deliver any
additional documents deemed by the Depositary or Purchaser to be necessary or
desirable to complete the sale, assignment and transfer of the Shares tendered
hereby (and any Distribution). In addition, the undersigned shall promptly remit
and transfer to the Depositary for the account of Purchaser any and all
Distributions in respect of the Shares tendered hereby, accompanied by
appropriate documentation of transfer; and pending such remittance or
appropriate assurance thereof, Purchaser shall be, subject to applicable law,
entitled to all rights and privileges as owner of any such Distribution and may
withhold the entire purchase price or deduct from the purchase price the amount
or value thereof, as determined by Purchaser in its sole discretion.

                                        3
<PAGE>   4

     All authority herein conferred or agreed to be conferred shall not be
affected by and shall survive the death or incapacity of the undersigned and any
obligation of the undersigned hereunder shall be binding upon the heirs,
personal representatives, successors and assigns of the undersigned.

     Tenders of Shares made pursuant to the Offer may be withdrawn at any time
prior to the Expiration Date. Thereafter, such tenders are irrevocable except
that they may be withdrawn after August 13, 1999, unless theretofore accepted
for payment as provided in the Offer to Purchase. See Section 4 of the Offer to
Purchase.

     The undersigned understands that tenders of Shares pursuant to any of the
procedures described in Section 3 of the Offer to Purchase and in the
instructions hereto will constitute a binding agreement between the undersigned
and Purchaser upon the terms and subject to the conditions set forth in the
Offer, including the undersigned's representation that the undersigned owns the
Shares being tendered.

     Unless otherwise indicated herein under "Special Payment Instructions,"
please issue the check for the purchase price and/or issue or return any
certificate(s) for Shares not tendered or not accepted for payment in the
name(s) of the registered holder(s) appearing under "Description of Shares
Tendered." Similarly, unless otherwise indicated herein under "Special Delivery
Instructions," please mail the check for the purchase price and/or any
certificate(s) for Shares not tendered or not accepted for payment (and
accompanying documents, as appropriate) to the address(es) of the registered
holder(s) appearing under "Description of Shares Tendered." In the event that
both the Special Delivery Instructions and the Special Payment Instructions are
completed, please issue the check for the purchase price and/or any
certificate(s) for Shares not tendered or accepted for payment in the name of,
and deliver such check and/or such certificates to, the person(s) so indicated.
The undersigned recognizes that Purchaser has no obligation, pursuant to the
Special Payment Instructions, to transfer any Shares from the name(s) of the
registered holder(s) thereof if Purchaser does not accept for payment any of the
Shares so tendered.

                                        4
<PAGE>   5

          ------------------------------------------------------------

                          SPECIAL PAYMENT INSTRUCTIONS
                        (SEE INSTRUCTIONS 1, 5, 6 AND 7)

        To be completed ONLY if certificate(s) for Shares not tendered or not
   accepted for payment and/or the check for the purchase price of Shares
   accepted for payment are to be issued in the name of someone other than
   the undersigned.

   Issue     [ ] check     [ ] Certificate to:

   Name
   -----------------------------------------------------
                                    (PLEASE PRINT)

   Address
   --------------------------------------------------

          ------------------------------------------------------------
                               (INCLUDE ZIP CODE)

          ------------------------------------------------------------
                        (TAX ID. OR SOCIAL SECURITY NO.)
                      (SEE SUBSTITUTE FORM W-9 ON PAGE 10)

          ------------------------------------------------------------
          ------------------------------------------------------------

                         SPECIAL DELIVERY INSTRUCTIONS
                        (SEE INSTRUCTIONS 1, 5, 6 AND 7)

        To be completed ONLY if certificate(s) for Shares not tendered or not
   accepted for payment and/or the check for the purchase price of Shares
   accepted for payment are to be sent to someone other than the undersigned
   or the undersigned at an address other than that shown above.

   Mail     [ ] check     [ ] Certificate to:

   Name
   -----------------------------------------------------
                                    (PLEASE PRINT)

   Address
   --------------------------------------------------

          ------------------------------------------------------------
                               (INCLUDE ZIP CODE)

          ------------------------------------------------------------
                        (TAX ID. OR SOCIAL SECURITY NO.)
                      (SEE SUBSTITUTE FORM W-9 ON PAGE 10)

          ------------------------------------------------------------

                                        5
<PAGE>   6

                                   SIGN HERE
                  AND COMPLETE SUBSTITUTE FORM W-9 ON PAGE 10

X
- --------------------------------------------------------------------------------

X
- --------------------------------------------------------------------------------
                          (SIGNATURE(S) OF HOLDER(S))

Dated: .........................................................................

(Must be signed by the registered holder(s) exactly as name(s) appear(s) on
Share Certificate(s) or on a security position listing or by person(s)
authorized to become registered holder(s) by certificates and documents
transmitted herewith. If signature is by trustees, executors, administrators,
guardians, attorneys-in-fact, officers of corporations or others acting in a
fiduciary or representative capacity, please provide the following information
and see Instruction 5.)

Name(s) ------------------------------------------------------------------------
                                     (PLEASE PRINT)

Capacity (full title)
               -----------------------------------------------------------------

Address-------------------------------------------------------------------------
                                  (INCLUDE ZIP CODE)

Area Code and Telephone Number
                          ------------------------------------------------------

Tax Identification or Social Security Number
                                ------------------------------------------------

                    COMPLETE SUBSTITUTE FORM W-9 ON PAGE 10
                           GUARANTEE OF SIGNATURE(S)
                           (SEE INSTRUCTIONS 1 AND 5)

AUTHORIZED SIGNATURE    --------------------------------------------------------

NAME   -------------------------------------------------------------------------

NAME OF FIRM  ------------------------------------------------------------------
                                 (PLEASE PRINT)

ADDRESS ------------------------------------------------------------------------
                               (INCLUDE ZIP CODE)

AREA CODE AND TELEPHONE NUMBER     ---------------------------------------------

DATED:
- --------------------------------------------------------------------------------

                                        6
<PAGE>   7

                                  INSTRUCTIONS

             FORMING PART OF THE TERMS AND CONDITIONS OF THE OFFER

     1.  GUARANTEE OF SIGNATURES.  No signature guarantee is required on this
Letter of Transmittal (a) if this Letter of Transmittal is signed by the
registered holder(s) of Shares tendered herewith, unless such holder(s) has
completed either the box entitled "Special Payment Instructions" or the box
entitled "Special Delivery Instructions" above or (b) if such Shares are
tendered for the account of a firm which is a bank, broker, dealer, credit
union, savings association or other entity which is a member in good standing of
the Securities Transfer Agents Medallion Program (each of the foregoing being
referred to as an "Eligible Institution"). In all other cases, all signatures on
this Letter of Transmittal must be guaranteed by an Eligible Institution. See
Instruction 5 of this Letter of Transmittal.

     2.  REQUIREMENTS OF TENDER.  This Letter of Transmittal is to be completed
by shareholders either if Share Certificates are to be forwarded herewith or,
unless an Agent's Message is utilized, if tenders are to be made pursuant to the
procedure for tender by book-entry transfer set forth in Section 3 of the Offer
to Purchase. Share Certificates evidencing tendered Shares, or timely
confirmation (a "Book-Entry Confirmation") of a book-entry transfer of such
Shares into the Depositary's account at the Book-Entry Transfer Facility, as
well as this Letter of Transmittal (or a facsimile hereof), properly completed
and duly executed, with any required signature guarantees, or an Agent's Message
in connection with a book-entry transfer, and any other documents required by
this Letter of Transmittal, must be received by the Depositary at one of its
addresses set forth herein prior to the Expiration Date (as defined in Section 1
of the Offer to Purchase). Shareholders whose Share Certificates are not
immediately available or who cannot deliver their Share Certificates and all
other required documents to the Depositary prior to the Expiration Date or who
cannot complete the procedure for delivery by book-entry transfer on a timely
basis may tender their Shares by properly completing and duly executing a Notice
of Guaranteed Delivery pursuant to the guaranteed delivery procedure set forth
in Section 3 of the Offer to Purchase. Pursuant to such procedure: (i) such
tender must be made by or through an Eligible Institution; (ii) a properly
completed and duly executed Notice of Guaranteed Delivery, substantially in the
form made available by the Purchaser, must be received by the Depositary prior
to the Expiration Date; and (iii) the Share Certificates (or a Book-Entry
Confirmation) representing all tendered Shares, in proper form for transfer, in
each case together with the Letter of Transmittal (or a facsimile thereof,
properly completed and duly executed, with any required signature guarantees
(or, in the case of a book-entry delivery, an Agent's Message) and any other
documents required by this Letter of Transmittal, must be received by the
Depositary within three NASDAQ National Market trading days after the date of
execution of such Notice of Guaranteed Delivery.

     THE METHOD OF DELIVERY OF THIS LETTER OF TRANSMITTAL, SHARE CERTIFICATES
AND ALL OTHER REQUIRED DOCUMENTS, INCLUDING DELIVERY THROUGH THE BOOK-ENTRY
TRANSFER FACILITY, IS AT THE OPTION AND RISK OF THE TENDERING SHAREHOLDER. IF
DELIVERY IS BY MAIL, REGISTERED MAIL WITH RETURN RECEIPT REQUESTED, PROPERLY
INSURED, IS RECOMMENDED. IN ALL CASES, SUFFICIENT TIME SHOULD BE ALLOWED TO
ENSURE TIMELY DELIVERY.

     No alternative, conditional or contingent tenders will be accepted, and no
fractional Shares will be purchased. All tendering shareholders, by execution of
this Letter of Transmittal (or a facsimile hereof), waive any right to receive
any notice of the acceptance of their Shares for payment.

     3.  INADEQUATE SPACE.  If the space provided herein is inadequate, the
Share Certificate numbers and/or the number of Shares and any other required
information should be listed on a separate signed schedule attached hereto.

     4.  PARTIAL TENDERS.  (Not Applicable to Book-Entry Shareholders) If fewer
than all the Shares evidenced by any Share Certificate submitted are to be
tendered, fill in the number of Shares which are to be tendered in the box
entitled "Number of Shares Tendered." In such cases, new Share Certificates for
the Shares that were evidenced by your old Share Certificates, but were not
tendered by you, will be sent to you, unless otherwise provided in the
appropriate box on this Letter of Transmittal, as soon as practicable after the
Expiration Date. All Shares represented by Share Certificates delivered to the
Depositary will be deemed to have been tendered unless otherwise indicated.

     5.  SIGNATURES ON LETTER OF TRANSMITTAL, STOCK POWERS AND ENDORSEMENTS.  If
this Letter of Transmittal is signed by the registered holder(s) of the Shares
tendered hereby, the signature(s) must correspond with the name(s) as written on
the face of the Share Certificate(s) without alteration, enlargement or any
change whatsoever.

     If any of the Shares tendered hereby are owned of record by two or more
joint owners, all such owners must sign this Letter of Transmittal.

                                        7
<PAGE>   8

     If any of the tendered Shares is registered in different names on several
Share Certificates, it will be necessary to complete, sign and submit as many
separate Letters of Transmittal as there are different registrations of Share
Certificates.

     If this Letter of Transmittal or any Share Certificates or stock powers are
signed by trustees, executors, administrators, guardians, attorneys-in-fact,
officers of corporations or others acting in a fiduciary or representative
capacity, such persons should so indicate when signing, and proper evidence
satisfactory to Purchaser of their authority to so act must be submitted.

     If this Letter of Transmittal is signed by the registered holder(s) of the
Shares listed and transmitted hereby, no endorsements of Share Certificates or
separate stock powers are required unless payment is to be made to or Share
Certificates for Shares not tendered or not purchased are to be issued in the
name of a person other than the registered holder(s). Signatures on such Share
Certificates or stock powers must be guaranteed by an Eligible Institution.

     If this Letter of Transmittal is signed by a person other than the
registered holder(s) of the Share Certificate(s) listed, the certificate(s) must
be endorsed or accompanied by appropriate stock powers, in either case signed
exactly as the name(s) of the registered holder(s) appear(s) on the Share
Certificate(s). Signatures on such Share Certificates or stock powers must be
guaranteed by an Eligible Institution.

     6.  STOCK TRANSFER TAXES.  Except as otherwise provided in this Instruction
6, Purchaser will pay any stock transfer taxes with respect to the transfer and
sale of Shares to it or its order pursuant to the Offer. If, however, payment of
the purchase price is to be made to, or if certificate(s) for Shares not
tendered or accepted for payment are to be registered in the name of, any person
other than the registered holder(s), or if tendered Share Certificate(s) are
registered in the name of any person other than the person(s) signing this
Letter of Transmittal, the amount of any stock transfer taxes (whether imposed
on the registered holder(s) or such person) payable on account of the transfer
to such person will be deducted from the purchase price unless satisfactory
evidence of the payment of such taxes or an exemption therefrom, is submitted.

     EXCEPT AS OTHERWISE PROVIDED IN THIS INSTRUCTION 6, IT WILL NOT BE
NECESSARY FOR TRANSFER TAX STAMPS TO BE AFFIXED TO THE SHARE CERTIFICATE(S)
LISTED IN THIS LETTER OF TRANSMITTAL.

     7.  SPECIAL PAYMENT AND DELIVERY INSTRUCTIONS.  If a check is to be issued
in the name of, and/or certificates for Shares not tendered or not accepted for
payment are to be issued or returned to, a person other than the signer of this
Letter of Transmittal or if a check and/or such Share Certificates are to be
returned to a person other than the person(s) signing this Letter of Transmittal
or to an address other than that shown in this Letter of Transmittal, the
appropriate boxes on this Letter of Transmittal must be completed.

     8.  WAIVER OF CONDITIONS.  Subject to the terms and conditions of the
Merger Agreement, the conditions of the Offer (other than the Minimum Condition)
may be waived by Purchaser in whole or in part at any time and from time to time
in its sole discretion.

     9.  31% BACKUP WITHHOLDING; SUBSTITUTE FORM W-9.  Under U.S. Federal income
tax law, a shareholder whose tendered Shares are accepted for payment is
required to provide the Depositary with such shareholder's correct taxpayer
identification number ("TIN") (e.g., social security number or employer
identification number) on the Substitute Form W-9 below. If the Depositary is
not provided with the correct TIN, the Internal Revenue Service may subject the
shareholder or other payee to a $50 penalty. In addition, payments that are made
to such shareholder or other payee with respect to Shares purchased pursuant to
the Offer may be subject to 31% backup withholding.

     Certain shareholders (including, among others, all corporations and certain
foreign individuals) are not subject to these backup withholding and reporting
requirements. In order for a foreign individual to qualify as an exempt
recipient, the shareholder must submit a Form W-8, signed under penalties of
perjury, attesting to that individual's exempt status. A Form W-8 can be
obtained from the Depositary. See the enclosed "Guidelines for Certification of
Taxpayer Identification Number on Substitute Form W-9" for more instructions.

     If backup withholding applies, the Depositary is required to withhold 31%
of any such payments made to the shareholder or other payee. Backup withholding
is not an additional tax. Rather, the tax liability of persons subject to backup
withholding will be reduced by the amount of tax withheld. If withholding
results in an overpayment of taxes, a refund may be obtained from the Internal
Revenue Service.

                                        8
<PAGE>   9

     The box in Part 3 of the Substitute Form W-9 may be checked if the
tendering shareholder has not been issued a TIN and has applied for a TIN or
intends to apply for a TIN in the near future. If the box in Part 3 is checked,
the shareholder or other payee must also complete the Certificate of Awaiting
Taxpayer Identification Number below in order to avoid backup withholding.
Notwithstanding that the box in Part 3 is checked and the Certificate of
Awaiting Taxpayer Identification Number is completed, the Depositary will
withhold 31% of all payments made prior to the time a properly certified TIN is
provided to the Depositary.

     The shareholder is required to give the Depositary the TIN of the record
owner of the Shares, or of the last transferee appearing on the transfers
attached to, or endorsed on, the Shares. If the Shares are in more than one name
or are not in the name of the actual owner, consult the enclosed "Guidelines for
Certification of Taxpayer Identification Number on Substitute Form W-9" for
additional guidance on which number to report.

     10.  REQUESTS FOR ASSISTANCE OR ADDITIONAL COPIES.  Questions or requests
for assistance may be directed to the Dealer Manager or the Information Agent at
their respective addresses and telephone numbers set forth below. Additional
copies of the Offer to Purchase, this Letter of Transmittal and the Notice of
Guaranteed Delivery may also be obtained from the Information Agent or from
brokers, dealers, commercial banks or trust companies.

     11.  LOST, DESTROYED OR STOLEN CERTIFICATES.  If any Share Certificate
representing Shares has been lost, destroyed or stolen, the shareholder should
promptly notify the Depositary. The shareholder will then be instructed as to
the steps that must be taken in order to replace the Share Certificate. This
Letter of Transmittal and related documents cannot be processed until the
procedures for replacing lost or destroyed certificates have been followed.

     IMPORTANT: THIS LETTER OF TRANSMITTAL (OR A FACSIMILE HEREOF), TOGETHER
WITH SHARE CERTIFICATES OR CONFIRMATION OF BOOK ENTRY TRANSFER OR THE NOTICE OF
GUARANTEED DELIVERY, AND ALL OTHER REQUIRED DOCUMENTS, MUST BE RECEIVED BY THE
DEPOSITARY PRIOR TO THE EXPIRATION DATE.

                                        9
<PAGE>   10

                 TO BE COMPLETED BY ALL TENDERING SHAREHOLDERS
                              (SEE INSTRUCTION 9)

<TABLE>
<C>                                   <S>                                           <C>                                     <C>
- -------------------------------------------------------------------------------------------------------------------------------
                                       PAYER'S NAME:  IBJ WHITEHALL BANK & TRUST COMPANY
- -------------------------------------------------------------------------------------------------------------------------------
 SUBSTITUTE                           PART 1 -- PLEASE PROVIDE YOUR TIN IN THE      Social Security Number
 FORM W-9                             BOX AT THE RIGHT AND CERTIFY BY SIGNING       or
DEPARTMENT OF THE TREASURY            AND DATING BELOW.                             Employer Identification Number
  INTERNAL REVENUE SERVICE                                                          ------------------------------
                                      -------------------------------------------------------------------------------------

                                      PART 2 -- CERTIFICATION -- Under penalties of perjury, I certify that:
                                      (1) The number shown on this form is my correct Taxpayer Identification Number (or I
                                      am waiting for a number to be issued to me) and
       Payer's Request for            (2) I am not subject to backup withholding because: (a) I am exempt from backup
     Taxpayer Identification          withholding, or (b) I have not been notified by the Internal Revenue Service (the
          Number ("TIN")                  "IRS") that I am subject to backup withholding as a result of a failure to report
                                          all interest or dividends, or (c) the IRS has notified me that I am no longer
                                          subject to backup withholding.
                                      CERTIFICATION INSTRUCTIONS -- You must cross out item (2) above if you have been
                                      notified by the IRS that you are currently subject to backup withholding because of
                                      under-reporting interest or dividends on your tax return. However, if after being
                                      notified by the IRS that you were subject to backup withholding you received another
                                      notification from the IRS that you are no longer subject to backup withholding, do
                                      not cross out such Item (2).
            SIGN HERE                 Signature:                                 Date:
                                      ------------------------------------       ----------------------------
                                      -------------------------------------------------------------------------------------
                                      PART 3 -- Awaiting TIN [ ]
- -------------------------------------------------------------------------------------------------------------------------------
</TABLE>

NOTE: FAILURE TO COMPLETE AND RETURN THIS FORM MAY RESULT IN BACKUP WITHHOLDING
      OF 31% OF ANY PAYMENTS MADE TO YOU PURSUANT TO THE MERGER. PLEASE REVIEW
      THE ENCLOSED GUIDELINES FOR CERTIFICATION OF TAXPAYER IDENTIFICATION
      NUMBER ON SUBSTITUTE FORM W-9 FOR ADDITIONAL DETAILS.

        YOU MUST COMPLETE THE FOLLOWING CERTIFICATE IF YOU CHECKED THE BOX IN
      PART 3 OF SUBSTITUTE FORM W-9.

             CERTIFICATE OF AWAITING TAXPAYER IDENTIFICATION NUMBER

     I certify under penalties of perjury that a taxpayer identification number
has not been issued to me, and either (1) I have mailed or delivered an
application to receive a taxpayer identification number to the appropriate
Internal Revenue Service Center or Social Security Administration Office, or (2)
I intend to mail or deliver an application in the near future. I understand that
if I do not provide a taxpayer identification number by the time of payment, 31%
of all reportable payments made to me will be withheld.

Signature:                                      Date:
- ---------------------------                     ------------------------------

                                       10
<PAGE>   11

                      [THIS PAGE INTENTIONALLY LEFT BLANK]
<PAGE>   12

                    The Information Agent for the Offer is:
                           BEACON HILL PARTNERS, INC.

                                90 Broad Street
                            New York, New York 10004

                 Banks and Brokers Call Collect: (212) 843-8500
                   All Others Call Toll-Free: (800) 357-8212

                      The Dealer Manager for the Offer is:
                                LEHMAN BROTHERS

                          Three World Financial Center
                                200 Vesey Street
                            New York, New York 10285

                 Call Collect: (212) 526-5580 or (212) 526-2843

June 14, 1999

<PAGE>   1

                         NOTICE OF GUARANTEED DELIVERY

                                       TO

                         TENDER SHARES OF COMMON STOCK

                                       OF

                      VWR SCIENTIFIC PRODUCTS CORPORATION

     As set forth in Section 3 of the Offer to Purchase described below, this
instrument or one substantially equivalent hereto must be used to accept the
Offer (as defined below) if certificates for Shares (as defined below) are not
immediately available or the certificates for Shares and all other required
documents cannot be delivered to the Depositary (as indicated below) prior to
the Expiration Date (as defined in Section 1 of the Offer to Purchase) or if the
procedure for delivery by book-entry transfer cannot be completed on a timely
basis. This instrument may be delivered by hand or transmitted by facsimile
transmission or mail to the Depositary.

                        The Depositary for the Offer is:

                       IBJ WHITEHALL BANK & TRUST COMPANY

<TABLE>
<S>                                <C>                                <C>
             By Mail:                  By Facsimile Transmission:       By Hand or Overnight Delivery:
           P.O. Box 84              (for Eligible Institutions only)        One State Street Plaza
      Bowling Green Station                  (212) 858-2611                New York, New York 10004
  New York, New York 10274-0084                                        Attention: Securities Processing
    Attention: Reorganization            Confirm by Telephone:          Window, Subcellar One, (SC-1)
      Operations Department                  (212) 858-2103
</TABLE>

     DELIVERY OF THIS INSTRUMENT TO AN ADDRESS OTHER THAN AS SET FORTH ABOVE OR
TRANSMISSION OF INSTRUCTIONS VIA FACSIMILE TRANSMISSION OTHER THAN AS SET FORTH
ABOVE WILL NOT CONSTITUTE A VALID DELIVERY.

     THIS FORM IS NOT TO BE USED TO GUARANTEE SIGNATURES. IF A SIGNATURE ON A
LETTER OF TRANSMITTAL IS REQUIRED TO BE GUARANTEED BY AN ELIGIBLE INSTITUTION
UNDER THE INSTRUCTIONS THERETO, SUCH SIGNATURE GUARANTEE MUST APPEAR IN THE
APPLICABLE SPACE PROVIDED IN THE SIGNATURE BOX IN THE LETTER OF TRANSMITTAL.

              THE GUARANTEE ON THE REVERSE SIDE MUST BE COMPLETED
<PAGE>   2

Ladies and Gentlemen:

     The undersigned hereby tender(s) to EM Subsidiary, Inc., a Pennsylvania
corporation and a wholly owned subsidiary of EM Laboratories, Incorporated, a
New York corporation, an indirect subsidiary of Merck KGaA, Darmstadt, Germany,
a German company, upon the terms and subject to the conditions set forth in the
Offer to Purchase dated June 14, 1999 (the "Offer to Purchase"), and in the
related Letter of Transmittal (which, together with any supplements or
amendments thereto, collectively constitute the "Offer"), receipt of which is
hereby acknowledged, the number of shares of common stock, par value $1.00 per
share (the "Shares"), of VWR Scientific Products Corporation, a Pennsylvania
corporation, pursuant to the guaranteed delivery procedure set forth in Section
3 of the Offer to Purchase.

 Signature(s)
 ---------------------------------------------

 Name(s) of Record Holders

 -----------------------------------------------------------
                              Please Type or Print

 Number of Shares
 ----------------------------------------

 Certificate Nos. (If Available)

 -----------------------------------------------------------

 -----------------------------------------------------------

 Dated
 ----------------------------------------------------
 Address(es)
 ---------------------------------------------

 -----------------------------------------------------------
                                                                       Zip Code

 Area Code and Tel. No(s)
 ------------------------------

 Check box if Shares will be tendered by book-entry transfer

 [ ]  The Depository Trust Company

 Account Number
 ----------------------------------------

 -----------------------------------------------------------

                                   GUARANTEE
                    (NOT TO BE USED FOR SIGNATURE GUARANTEE)

      The undersigned, a firm which is a bank, broker, dealer, credit union,
 savings association or other entity which is a member in good standing of the
 Securities Transfer Agents Medallion Program, (a) represents that the above
 named person(s) "own(s)" the Shares tendered hereby within the meaning if Rule
 14e-4 under the Securities Exchange Act of 1934, as amended ("Rule 14e-4"),
 (b) represents that such tender of Shares complies with Rule 14e-4, and (c)
 guarantees to deliver to the Depositary either the certificates evidencing all
 tendered Shares, in proper form for transfer, or to deliver Shares pursuant to
 the procedure for book-entry transfer into the Depositary's account at The
 Depository Trust Company (the "Book-Entry Transfer Facility"), in either case
 together with the Letter of Transmittal (or a facsimile thereof), properly
 completed and duly executed, with any required signature guarantees or an
 Agent's Message (as defined in the Offer to Purchase) in the case of a
 book-entry delivery, and any other required documents, all within three NASDAQ
 National Market trading days after the date hereof.

 ----------------------------------------------------------
                                  Name of Firm

 ----------------------------------------------------------
                                     Address

 ----------------------------------------------------------
                                                                        Zip Code

 Area Code and Tel No.
 -------------------------------------

 -----------------------------------------------------------
                              Authorized Signature

 Name
 -----------------------------------------------------
                              Please Type or Print

 Title
 ------------------------------------------------------

 Dated
 -----------------------------------------------------

NOTE:  DO NOT SEND CERTIFICATES FOR SHARES WITH THIS NOTICE. CERTIFICATES SHOULD
       BE SENT WITH YOUR LETTER OF TRANSMITTAL.

                                        2

<PAGE>   1

                           OFFER TO PURCHASE FOR CASH
                     ALL OUTSTANDING SHARES OF COMMON STOCK
                                       OF

                      VWR SCIENTIFIC PRODUCTS CORPORATION
                                       AT

                              $37.00 NET PER SHARE

                                       BY

                              EM SUBSIDIARY, INC.,
                          A WHOLLY-OWNED SUBSIDIARY OF

                         EM LABORATORIES, INCORPORATED,
                           AN INDIRECT SUBSIDIARY OF

                         MERCK KGaA, DARMSTADT, GERMANY

  THE OFFER AND WITHDRAWAL RIGHTS WILL EXPIRE AT 12:00 MIDNIGHT, NEW YORK CITY
         TIME, ON TUESDAY, JULY 13, 1999, UNLESS THE OFFER IS EXTENDED.

                                                                   June 14, 1999
To Brokers, Dealers, Commercial Banks,
Trust Companies and Other Nominees:

     We have been appointed by EM Subsidiary, Inc., a Pennsylvania corporation
("Purchaser"), a wholly-owned subsidiary of EM Laboratories, Incorporated, a New
York corporation ("Parent"), which is an indirect subsidiary of Merck KGaA,
Darmstadt, Germany, a German company, to act as Dealer Manager in connection
with Purchaser's offer to purchase for cash all the outstanding shares of common
stock, par value $1.00 per share, (the "Shares"), of VWR Scientific Products
Corporation, a Pennsylvania corporation (the "Company") other than Shares held
by Parent, Purchaser or any affiliate thereof at a purchase price of $37.00 per
Share, net to the seller in cash, without interest thereon, upon the terms and
subject to the conditions set forth in the Offer to Purchase dated June 14, 1999
(the "Offer to Purchase") and in the related Letter of Transmittal (which,
together with any supplements or amendments thereto, constitute the "Offer")
enclosed herewith. Holders of Shares whose certificates for such Shares (the
"Share Certificates") are not immediately available or who cannot deliver their
Share Certificates and all other required documents to the Depositary (as
defined below) prior to the Expiration Date (as defined in the Offer to
Purchase), or who cannot complete the procedures for book-entry transfer on a
timely basis, must tender their Shares according to the guaranteed delivery
procedures set forth in Section 3 of the Offer to Purchase.

     Please furnish copies of the enclosed materials to those of your clients
for whom you hold Shares registered in your name or in the name of your nominee.

     Enclosed herewith for your information and forwarding to your clients are
copies of the following documents:

          1.  The Offer to Purchase;

          2.  The Letter of Transmittal to tender Shares for your use and for
     the information of your clients. Facsimile copies of the Letter of
     Transmittal may be used to tender Shares;

          3.  The Notice of Guaranteed Delivery to be used to accept the Offer
     if Share Certificates are not immediately available or if such Share
     Certificates and all other required documents cannot be delivered to IBJ
     Whitehall Bank & Trust Company (the "Depositary") by the Expiration Date,
     or if the procedure for book-entry transfer cannot be completed by the
     Expiration Date;

          4.  The Letter to Shareholders of the Company from the President and
     CEO of the Company, accompanied by the Company's
     Solicitation/Recommendation Statement on Schedule 14D-9;
<PAGE>   2

          5.  A printed form of letter which may be sent to your clients for
     whose accounts you hold Shares registered in your name or in the name of
     your nominee, with space provided for obtaining such clients' instructions
     with regard to the Offer;

          6.  Guidelines of the Internal Revenue Service for Certification of
     Taxpayer Identification Number on a Substitute Form W-9; and

          7.  A return envelope addressed to the Depositary.

     YOUR PROMPT ACTION IS REQUESTED. WE URGE YOU TO CONTACT YOUR CLIENTS AS
PROMPTLY AS POSSIBLE. THE OFFER AND WITHDRAWAL RIGHTS WILL EXPIRE AT 12:00
MIDNIGHT, NEW YORK CITY TIME, ON TUESDAY, JULY 13, 1999, UNLESS THE OFFER IS
EXTENDED.

     In order to take advantage of the Offer, (i) a duly executed and properly
completed Letter of Transmittal and any required signature guarantees, or an
Agent's Message (as defined in the Offer to Purchase) in connection with a
book-entry delivery of Shares, and other required documents should be sent to
the Depositary and (ii) either Share Certificates representing the tendered
Shares should be delivered to the Depositary, or such Shares should be tendered
by book-entry transfer into the Depositary's account maintained at the
Book-Entry Transfer Facility (as described in the Offer to Purchase), all in
accordance with the instructions set forth in the Letter of Transmittal and the
Offer to Purchase.

     If holders of Shares wish to tender, but it is impracticable for them to
deliver their Share Certificates or other required documents on or prior to the
Expiration Date or to comply with the book-entry transfer procedures on a timely
basis, a tender may be effected by following the guaranteed delivery procedures
specified in Section 3 of the Offer to Purchase.

     Purchaser will not pay any commissions or fees to any broker, dealer or
other person (other than the Dealer Manager, the Depositary and Beacon Hill
Partners, Inc. (the "Information Agent"), as described in the Offer to Purchase)
for soliciting tenders of Shares pursuant to the Offer. Purchaser will, however,
upon request, reimburse you for customary clerical and mailing expenses incurred
by you in forwarding any of the enclosed materials to your clients. Purchaser
will not pay or cause to be paid any stock transfer taxes payable on the
transfer of Shares to it, except as otherwise provided in Instruction 6 of the
Letter of Transmittal.

     Any inquiries you may have with respect to the Offer should be addressed to
Lehman Brothers Inc., as the Dealer Manager, or the Information Agent at their
respective addresses and telephone numbers set forth on the back cover of the
Offer to Purchase. Additional copies of the enclosed materials may be obtained
from the Information Agent.

                                         Very truly yours,

                                         LEHMAN BROTHERS

NOTHING CONTAINED HEREIN OR IN THE ENCLOSED DOCUMENTS SHALL CONSTITUTE YOU OR
ANY OTHER PERSON TO BE THE AGENT OF PURCHASER, PARENT, THE COMPANY, THE DEALER
MANAGER, THE DEPOSITARY, OR THE INFORMATION AGENT, OR ANY AFFILIATE OF ANY OF
THEM, OR AUTHORIZE YOU OR ANY OTHER PERSON TO MAKE ANY STATEMENT OR USE ANY
DOCUMENT ON BEHALF OF ANY OF THEM IN CONNECTION WITH THE OFFER OTHER THAN THE
ENCLOSED DOCUMENTS AND THE STATEMENTS CONTAINED THEREIN.

                                        2

<PAGE>   1

                           OFFER TO PURCHASE FOR CASH
                     ALL OUTSTANDING SHARES OF COMMON STOCK
                                       OF

                      VWR SCIENTIFIC PRODUCTS CORPORATION
                                       AT

                              $37.00 NET PER SHARE

                                       BY

                              EM SUBSIDIARY, INC.,
                          A WHOLLY OWNED SUBSIDIARY OF

                         EM LABORATORIES, INCORPORATED,
                           AN INDIRECT SUBSIDIARY OF

                         MERCK KGaA, DARMSTADT, GERMANY

    THE OFFER AND WITHDRAWAL RIGHTS WILL EXPIRE AT 12:00 MIDNIGHT, NEW YORK
      CITY TIME, ON TUESDAY, JULY 13, 1999, UNLESS THE OFFER IS EXTENDED.

To Our Clients:

     Enclosed for your consideration is an Offer to Purchase, dated June 14,
1999, (the "Offer to Purchase") and the related Letter of Transmittal (which,
together with any supplements or amendments thereto, constitute the "Offer")
relating to the Offer by EM Subsidiary, Inc., a Pennsylvania corporation
("Purchaser"), a wholly owned subsidiary of EM Laboratories, Incorporated, a New
York corporation ("Parent"), which is an indirect subsidiary of Merck KGaA,
Darmstadt, Germany, a German company, to purchase all outstanding shares of
common stock, par value $1.00 per share (the "Shares"), of VWR Scientific
Products Corporation, a Pennsylvania corporation (the "Company"), (other than
Shares held by Parent, Purchaser or any affiliates thereof) at a purchase price
of $37.00 per Share, net to the seller in cash, without interest thereon, upon
the terms and subject to the conditions set forth in the Offer. WE ARE THE
HOLDER OF RECORD OF SHARES HELD BY US FOR YOUR ACCOUNT. A TENDER OF SUCH SHARES
CAN BE MADE ONLY BY US AS THE HOLDER OF RECORD AND PURSUANT TO YOUR
INSTRUCTIONS. THE LETTER OF TRANSMITTAL IS FURNISHED TO YOU FOR YOUR INFORMATION
ONLY AND CANNOT BE USED BY YOU TO TENDER SHARES HELD BY US FOR YOUR ACCOUNT.

     We request instructions as to whether you wish to have us tender on your
behalf any or all of such Shares held by us for your account, pursuant to the
terms and subject to the conditions set forth in the Offer to Purchase.

     Your attention is directed to the following:

          1. The tender price is $37.00 per Share, net to the seller in cash,
     without interest thereon.

          2. The Offer is being made for all outstanding Shares (other than
     Shares held by Parent, Purchaser or any affiliates thereof).

          3. The Board of Directors of the Company (i) has approved (by
     unanimous vote of directors who are not representatives of Parent and its
     affiliates) each of the Offer, the Merger, and the Merger Agreement and the
     Shareholder Agreement (each, as defined below), (ii) has determined that
     the terms of each of the Offer and the Merger, are fair to, and in the best
     interest of, the Company and its shareholders (other than Parent and its
     affiliates) and (iii) recommends that the shareholders of the Company
     accept the Offer and tender their Shares pursuant to the Offer.

          4. The Offer is being made pursuant to an Agreement and Plan of
     Merger, dated as of June 8, 1999 (the "Shareholder Agreement") (the "Merger
     Agreement"), by and among Parent, Purchaser and the Company, pursuant to
     which, following the consummation of the Offer, Purchaser will be merged
     with and into the Company, with the Company surviving the merger as a
     wholly owned subsidiary of Parent (the "Merger"). At the effective time
<PAGE>   2

     of the Merger, each outstanding Share not tendered (other than Shares owned
     by Parent, Purchaser, the Company or any of their subsidiaries, or by
     shareholders, if any, who are entitled to and who properly exercise
     dissenters' rights under Pennsylvania law) will be converted into the right
     to receive in cash $37.00 per Share, without interest, as set forth in the
     Merger Agreement and described in the Offer to Purchase.

          5. Parent and Purchaser have also entered into a Shareholder
     Agreement, dated as of June 8, 1999, with certain shareholders of the
     Company (the "Share Tender Parties"), pursuant to which, among other
     things, each Share Tender Party has agreed to tender in the Offer upon the
     terms and subject to the conditions of such Shareholders Agreement, all the
     Shares owned by such Share Tender Parties. These Shares represent
     approximately 2.5% of the outstanding Shares (determined on a fully diluted
     basis) as of June 8, 1999. Parent and its affiliates own approximately
     49.9% of the outstanding Shares.

          6. The Offer and withdrawal rights will expire at 12:00 Midnight, New
     York City time, on Tuesday, July 13, 1999 (the "Expiration Date"), unless
     the Offer is extended.

          7. Tendering shareholders will not be obligated to pay brokerage fees
     or commissions or, except as otherwise provided in Instruction 6 of the
     Letter of Transmittal, stock transfer taxes on the purchase of Shares by
     the Purchaser pursuant to the Offer.

          8. The Offer is conditioned upon, among other things, (i) there being
     validly tendered and not withdrawn prior to the Expiration Date a number of
     Shares representing at least a majority of the outstanding Shares,
     excluding any Shares held by Parent, Purchaser or any affiliate thereof,
     (ii) the expiration or termination of any applicable waiting period under
     the Hart-Scott-Rodino Antitrust Improvements Act of 1976, as amended, and
     similar applicable foreign laws, (iii) compliance with Section 721 of Title
     VII of the Defense Production Act of 1950, as amended, known as the
     Exon-Florio provisions, and (iv) the satisfaction or waiver of other
     certain conditions to the obligations of Purchaser and the Company to
     consummate the Offer and the transactions contemplated by the Merger
     Agreement.

     For purposes of the Offer, Purchaser will be deemed to have accepted for
payment, and thereby purchase, Shares validly tendered and not properly
withdrawn as of the Expiration Date when Purchaser gives notice to IBJ Whitehall
Bank & Trust Company (the "Depositary") of the Purchaser's acceptance for
payment of such Shares. Payment for Shares purchased pursuant to the Offer will
be made by deposit of the purchase price with the Depositary, which will act as
agent for tendering stockholders for the purpose of receiving payment from
Purchaser and transmitting payment to tendering stockholders whose Shares have
been accepted for payment. In all cases, payment for Shares purchased pursuant
to the Offer will be made only after timely receipt by the Depositary of (a)
certificates representing Shares ("Share Certificates") (or a timely Book-Entry
Confirmation (as defined in the Offer to Purchase) with respect to such Shares)
into the account maintained by the Depositary at The Depository Trust Company
(the "Book-Entry Transfer Facility"), pursuant to the procedures set forth in
Section 3 of the Offer to Purchase, (b) the Letter of Transmittal (or a
facsimile thereof), properly completed and duly executed, with any required
signature guarantees or an Agent's Message (as defined in the Offer to
Purchase), in connection with a book-entry delivery, and (c) any other documents
required by the Letter of Transmittal. Accordingly, payment may not be made to
all tendering stockholders at the same time depending upon when Share
Certificates or Book Entry Confirmations are actually received by the
Depositary. Under no circumstances will interest be paid on the purchase price
of the Shares to be paid by the Purchaser, regardless of any extension of the
Offer or any delay in making such payment.

     The Offer is being made solely by the Offer to Purchase and related Letter
of Transmittal and any auxiliary documents thereto and is being made to all
holders of Shares. Purchaser is not aware of any state where the making of
Offers is prohibited by administrative or judicial action pursuant to any valid
state statute. If Purchaser becomes aware of any valid state statute prohibiting
the making of the Offer, Purchaser will make a good faith effort to comply with
such statute. If, after such good faith effort, Purchaser cannot comply with
such state statute, the Offer will not be made to nor will tenders be accepted
from or on behalf of the holders of Shares in such state. In any jurisdiction
where the securities, "blue sky" or other laws require the Offer to be made by a
licensed broker or dealer, the Offer shall be deemed to be made on behalf of
Purchaser by Lehman Brothers Inc., as Dealer Manager, or one or more registered
brokers or dealers licensed under the laws of such jurisdiction.

     IF YOU WISH TO HAVE US TENDER ANY OR ALL OF THE SHARES HELD BY US FOR YOUR
ACCOUNT, PLEASE SO INSTRUCT US BY COMPLETING, EXECUTING AND RETURNING TO US THE
INSTRUCTION FORM CONTAINED IN THIS LETTER. IF YOU AUTHORIZE THE TENDER OF YOUR
SHARES, ALL SUCH SHARES WILL BE TENDERED UNLESS OTHERWISE SPECIFIED IN SUCH
INSTRUCTION FORM. YOUR INSTRUCTIONS SHOULD BE FORWARDED TO US IN AMPLE TIME TO
PERMIT US TO SUBMIT A TENDER ON YOUR BEHALF PRIOR TO THE EXPIRATION DATE.

                                        2
<PAGE>   3

                        INSTRUCTIONS WITH RESPECT TO THE
                           OFFER TO PURCHASE FOR CASH
                     ALL OUTSTANDING SHARES OF COMMON STOCK

                                       OF

                      VWR SCIENTIFIC PRODUCTS CORPORATION
                                       BY

                              EM SUBSIDIARY, INC.,
                          A WHOLLY OWNED SUBSIDIARY OF

                         EM LABORATORIES, INCORPORATED,
                           AN INDIRECT SUBSIDIARY OF

                         MERCK KGaA, DARMSTADT, GERMANY

     The undersigned acknowledge(s) receipt of your letter enclosing the Offer
to Purchase dated June 14, 1999, (the "Offer to Purchase"), and the related
Letter of Transmittal (which, together with any supplements or amendments
thereto, constitute the "Offer") pursuant to an offer by EM Subsidiary, Inc., a
Pennsylvania corporation, a wholly-owned subsidiary of EM Laboratories,
Incorporated, a New York corporation, which is an indirect subsidiary of Merck
KGaA, Darmstadt, Germany, a German company to purchase all outstanding shares
(other than Shares held by Parent, Purchaser or any affiliate thereof) of common
stock, par value $1.00 per share (the "Shares"), of VWR Scientific Products
Corporation, a Pennsylvania corporation, at a purchase price of $37.00 per
Share, net to the seller in cash, without interest thereon, upon the terms and
subject to the conditions set forth in the Offer.

     This will instruct you to tender the number of Shares indicated below (or
if no number is indicated below, all Shares) that are held by you for the
account of the undersigned, upon the terms and subject to the conditions set
forth in the Offer.

Date:
- ---------------------------

                       NUMBER OF SHARES TO BE TENDERED:*

                          --------------------- SHARES

                                   SIGN HERE
- --------------------------------------------------------------------------------

- --------------------------------------------------------------------------------
                                  SIGNATURE(S)

- --------------------------------------------------------------------------------
                              PLEASE PRINT NAME(S)

- --------------------------------------------------------------------------------

- --------------------------------------------------------------------------------
                                  ADDRESS(ES)

- --------------------------------------------------------------------------------
                         AREA CODE AND TELEPHONE NUMBER

- --------------------------------------------------------------------------------
               TAXPAYER IDENTIFICATION OR SOCIAL SECURITY NUMBER

- ---------------

* UNLESS OTHERWISE INDICATED, IT WILL BE ASSUMED THAT ALL SHARES HELD BY US FOR
  YOUR ACCOUNT ARE TO BE TENDERED.

<PAGE>   1
                                                                  EXHIBIT (a)(6)

            GUIDELINES FOR CERTIFICATION OF TAXPAYER IDENTIFICATION
                         NUMBER ON SUBSTITUTE FORM W-9

Guidelines for Determining the Proper Identification Number for the Payee (You)
to Give the Payer.--Social security numbers have nine digits separated by two
hyphens: i.e., 000-00-0000. Employee identification numbers have nine digits
separated by only one hyphen: i.e., 00-0000000. The table below will help
determine the number to give the payer. All "Section" references are to the
Internal Revenue Code of 1986, as amended. "IRS" is the Internal Revenue
Service.

- ---------------------------------------------------------------------------
                                          Give the social security number
For this type of account:                 of--
- ---------------------------------------------------------------------------
 1. Individual                            The individual

 2. Two or more individuals               The actual owner of the account
   (joint account)                        or, if combined funds, the first
                                          individual on the account(1)

 3. Custodian account of a minor          The minor(2)
   (Uniform Gift to Minors Act)

 4. a. The usual revocable savings        The grantor-trustee(1)
       trust account
       (grantor is also trustee)

    b. So-called trust account that       The actual owner(1)
       is not a legal or valid trust
       under state law

 5. Sole proprietorship                   The owner(3)

- ---------------------------------------------------------------------------
                                          Give the employer identification
For this type of account:                 number of--
- ---------------------------------------------------------------------------
 6. Sole proprietorship                   The owner(3)

 7. A valid trust, estate, or pension     The legal entity(4)
    trust

 8. Corporate                             The corporation

 9. Association, club, religious,         The organization
    charitable, educational, or other
    tax-exempt organization account

10. Partnership                           The partnership

11. A broker or registered nominee        The broker or nominee

12. Account with the Department of        The public entity
    Agriculture in the name of a
    public entity (such as a state or
    local government, school district,
    or prison) that receives
    agricultural program payments
- ---------------------------------------------------------------------------

(1) List first and circle the name of the person whose number you furnish. If
    only one person on a joint account has a social security number, that
    person's number must be furnished.

(2) Circle the minor's name and furnish the minor's social security number.

(3) You must show your individual name, but you may also enter your business or
    "doing business as" name. You may use either your social security number or
    your employer identification number (if you have one).

(4) List first and circle the name of the legal trust, estate, or pension trust.
    (Do not furnish the taxpayer identification number of the personal
    representative or trustee unless the legal entity itself is not designated
    in the account title.)

NOTE: If no name is circled when there is more than one name, the number will
be considered to be that of the first name listed.
- --------------------------------------------------------------------------

OBTAINING A NUMBER

If you don't have a taxpayer identification number or you don't know your
number, obtain Form SS-5. Application for a Social Security Card, at the local
Social Administration office, of Form SS-4, Application for Employer
Identification Number, by calling 1 (800) TAX-FORM, and apply for a number.

PAYEES EXEMPT FROM BACKUP WITHHOLDING

Payees specifically exempted from withholding include:

- - An organization exempt from tax under Section 501(a), an individual retirement
  account (IRA), or a custodial account under Section 403(b)(7), if the account
  satisfies the requirements of Section 401(f)(2).

- - The United States or a state thereof, the District of Columbia, a possession
  of the United States, or a political subdivision or wholly-owned agency or
  instrumentality of any one or more of the foregoing.

- - An international organization or any agency or instrumentality thereof.

- - A foreign government and any political subdivision, agency or instrumentality
  thereof.

Payees that may be exempt from backup withholding include:

- - A corporation.

- - A financial institution.

- - A dealer in securities or commodities required to register in the United
  States, the District of Columbia, or a possession of the United States.

- - A real estate investment trust.

- - A common trust fund operated by a bank under Section 584(a).

- - An entity registered at all times during the tax year under the Investment
  Company Act of 1940.

- - A middleman known in the investment community as a nominee or who is listed in
  the most recent publication of the American Society of Corporate Secretaries,
  Inc., Nominee List.

- - A futures commission merchant registered with the Commodity Futures Trading
  Commission.

- - A foreign central bank of issue.

Payments of dividends and patronage dividends generally exempt from backup
withholding include:

- - Payments to nonresident aliens subject to withholding under Section 1441.

- - Payments to partnerships not engaged in a trade or business in the United
  States and that have at least one nonresident alien partner.

- - Payments of patronage dividends not paid in money.

- - Payments made by certain foreign organizations.

- - Section 404(k) payments made by an ESOP.

Payments of interest generally exempt from backup withholding include:

- - Payments of interest on obligations issued by individuals. Note: You may be
  subject to backup withholding if this interest is $600 or more and you have
  not provided your correct taxpayer identification number to the payer.

- - Payments of tax-exempt interest (including exempt-interest dividends under
  Section 852)

- - Payments described in Section 6049(b)(5) to nonresident aliens.

- - Payments on tax-free covenant bonds under Section 1451.

- - Payments made by certain foreign organizations.

- - Mortgage interest paid to you.

Certain payments, other than payments of interest, dividends, and patronage
dividends, that are exempt from information reporting are also exempt from
backup withholding. For details, see the regulations under sections 6041,
6041A, 6042, 6044, 6045, 6049, 6050A and 6050N.

EXEMPT PAYEES DESCRIBED ABOVE MUST FILE FORM W-9 OR A SUBSTITUTE FORM W-9 TO
AVOID POSSIBLE ERRONEOUS BACKUP WITHHOLDING. FILE THIS FORM WITH THE PAYER,
FURNISH YOUR TAXPAYER IDENTIFICATION NUMBER, WRITE "EXEMPT" IN PART II OF THE
FORM, AND RETURN IT TO THE PAYER. IF THE PAYMENTS ARE OF INTEREST, DIVIDENDS, OR
PATRONAGE DIVIDENDS, ALSO SIGN AND DATE THE FORM.

PRIVACY ACT NOTICE.--Section 6109 requires you to provide your correct taxpayer
identification number to payers, who must report the payments to the IRS. The
IRS uses the number for identification purposes and may also provide this
information to various government agencies for tax enforcement or litigation
purposes. Payers must be given the numbers whether or not recipients are
required to file tax returns. Payers must generally withhold 31% of taxable
interest, dividend, and certain other payments to a payee who does not furnish
a taxpayer identification number to payer. Certain penalties may also apply.

PENALTIES

(1) FAILURE TO FURNISH TAXPAYER IDENTIFICATION NUMBER.--If you fail to furnish
your taxpayer identification number to a payer, you are subject to a penalty of
$50 for each such failure unless your failure is due to reasonable cause and
not to willful neglect.

(2) CIVIL PENALTY FOR FALSE INFORMATION WITH RESPECT TO WITHHOLDING.--If you
make a false statement with no reasonable basis that results in no backup
withholding, you are subject to a $500 penalty.

(3) CRIMINAL PENALTY FOR FALSIFYING INFORMATION.--Willfully falsifying
certifications or affirmations may subject you to criminal penalties including
fines and/or imprisonment.

                  FOR ADDITIONAL INFORMATION CONTACT YOUR TAX
                  CONSULTANT OR THE INTERNAL REVENUE SERVICE.


<PAGE>   1
                                                                 EXHIBIT (a)(7)

===============================================================================

This announcement is neither an offer to purchase nor a solicitation of an offer
to sell Shares (as defined below). The Offer (as defined below) is made solely
by the Offer to Purchase dated June 14, 1999 and the related Letter of
Transmittal, and is being made to all holders of Shares. Purchaser (as defined
below) is not aware of any state where the making of the Offer is prohibited by
administrative or judicial action pursuant to any valid state statute. If
Purchaser becomes aware of any valid state statute prohibiting the making of the
Offer or the acceptance of the Shares pursuant thereto, Purchaser shall make a
good faith effort to comply with such statute or seek to have such statute
declared inapplicable to the Offer. If, after such good faith effort, Purchaser
cannot comply with such state statute, the Offer will not be made to (nor will
tenders be accepted from or on behalf of) holders of Shares in such state.


                      Notice of Offer to Purchase for Cash
                     All Outstanding Shares of Common Stock

                                       of

                      VWR SCIENTIFIC PRODUCTS CORPORATION

                                       at

                          $37.00 Net Per Common Share

                                       by

                              EM SUBSIDIARY, INC.,
                           a wholly-owned subsidiary

                                       of

                         EM LABORATORIES, INCORPORATED,
                             an indirect subsidiary

                                       of

                                  MERCK KGaA,
                               DARMSTADT, GERMANY


     EM Subsidiary, Inc., a Pennsylvania corporation ("Purchaser"), a
wholly-owned subsidiary of EM Laboratories, Incorporated, a New York
corporation ("Parent"), that is an indirect subsidiary of Merck KGaA,
Darmstadt, Germany, a German company, is offering to purchase all outstanding
shares of common stock, par value $1.00 per share (the "Shares"), of VWR
Scientific Products Corporation, a Pennsylvania corporation (the "Company"), at
a price of $37.00 per Share, net to the seller in cash without interest thereon
upon the terms and subject to the conditions set forth in the Offer to
Purchase, dated June 14, 1999 (the "Offer to Purchase"), and in the related
Letter of Transmittal (which, together with any amendments or supplements
thereto, collectively constitute the "Offer").

===============================================================================
<PAGE>   2
    THE OFFER AND WITHDRAWAL RIGHTS WILL EXPIRE AT 12:00 MIDNIGHT, NEW YORK
      CITY TIME, ON TUESDAY, JULY 13, 1999, UNLESS THE OFFER IS EXTENDED.

      The Offer is conditioned upon (1) there being validly tendered and not
withdrawn prior to the expiration of the Offer a number of Shares representing
at lease a majority of the outstanding Shares, excluding any Shares held by
Parent, Purchaser or any affiliate thereof, (2) the expiration or termination
of any applicable waiting period under the Hart-Scott-Rodino Antitrust
Improvements Act of 1976, as amended, and similar applicable foreign laws, (3)
compliance with the Section 721 of Title VII of the Defense Production Act of
1950, as amended, known as the Exon-Florio provisions, and (4) the
satisfaction or waiver of certain other conditions to the obligations of
Purchaser and the Company to consummate the Offer and the transactions
contemplated by the Merger Agreement (as defined below).

      The Offer is being made pursuant to an Agreement and Plan of Merger,
dated as of June 8, 1999 (the "Merger Agreement"), by and among Parent,
Purchaser and the Company pursuant to which, following the consummation of the
Offer, Purchaser will be merged with and into the Company, with the Company
surviving the merger as a wholly-owned subsidiary of Parent (the "Merger"). At
the effective time of the Merger, each outstanding Share not tendered (other
than Shares owned by the Parent, Purchaser, the Company or any of their
affiliates, or by shareholders, if any, who are entitled to and who properly
exercise dissenters' rights under Pennsylvania Law) will be converted into the
right to receive $37.00 in cash, without interest thereon.

      Parent and Purchaser have also entered into a Shareholder Agreement,
dated as of June 8, 1999 (the "Shareholder Agreement"), with certain
shareholders of the Company (the "Shareholders"), pursuant to which, among
other things, each Shareholder has agreed to tender in the Offer upon the terms
and subject to the conditions of such Shareholder Agreement, all the Shares
owned by such Shareholder. These shares represent approximately 2.5% of the
outstanding Shares (determined on a fully-diluted basis) as of June 8, 1999.
Parent and its affiliates own approximately 49.9% of the outstanding Shares.

      The Board of Directors of the Company (the "Board") (1) has approved (by
unanimous vote of Directors who are not representatives of the Parent and its
affiliates) each of the Offer, the Merger and the Merger Agreement, (2) has
determined that the terms of each of the Offer and the Merger are fair to, and
in the best interests of, the Company and its Shareholders and (3) recommends
that the Shareholders of the Company accept the Offer and tender their Shares
pursuant to the Offer.

      For purposes of the Offer, Purchaser will be deemed to have accepted for
payment, and thereby purchase Shares, validly tendered and not properly
withdrawn as of the Expiration Date (as defined below) when Purchaser gives
notice to IBJ Whitehall Bank & Trust Company (the "Depositary") of Purchaser's
acceptance for payment of such Shares. Payment for Shares purchased pursuant to
the Offer will be made by deposit of the purchase price with the Depositary,
which will act as agent for tendering stockholders for the purpose of receiving
payment from Purchaser and transmitting payment to tendering stockholders whose
Shares have been accepted for payment. In all cases, payment for Shares
purchased pursuant to the Offer will be made only after timely receipt by the
Depositary of (a) certificates representing Shares ("Share Certificates") (or a
timely confirmation of the book-entry transfer of Shares ("Book Entry
Confirmation") into an account maintained by the Depositary at The Depository
Trust Company (the "Book Entry Transfer Facility")), pursuant to the procedures
set forth in the Offer to Purchase, (b) the Letter of Transmittal (or a
facsimile of one), properly completed and duly executed, with any required
signature guarantees or an Agent's Message (as defined in the Offer to
Purchase), in connection with a book-entry delivery, and (c) any other
documents required by the Letter of Transmittal. Accordingly, payment may not
be made to all tendering stockholders at the same time, depending upon when
Share Certificates or Book-Entry Confirmations are actually received by the
Depositary. Under no circumstances will interest be paid on the purchase price
of the Shares, regardless of any extension of the Offer or any delay in paying
for Shares.

      The term "Expiration Date" means 12:00 Midnight, New York City time, on
Tuesday, July 13, 1999 unless and until Purchaser, in its sole discretion, but
subject to the terms of the Merger Agreement, shall have extended the period of
time during which the Offer is open, in which event the term "Expiration Date"
shall mean the latest time and date on which the Offer, as so extended by
Purchaser, shall expire. Purchaser expressly reserves the right, in its sole
discretion (but subject to the terms of the Merger Agreement), at any time or
from time to time, and regardless of whether or not any of the events set forth
in the Offer to Purchase shall have occurred (i) to extend the period of time
during which the Offer is open and thereby delay acceptance for payment of, and
the payment for, any Shares, by giving notice of such extension to the
Depositary or (ii) to otherwise amend the Offer. Purchaser shall not have any
obligation to pay interest on the purchase price for tendered Shares, whether
or not Purchaser exercises its right to extend the Offer. There can be no
assurance that Purchaser will exercise the right to extend the Offer. Any such
extension will be followed by a public announcement thereof no later than 9:00
a.m., New York City time, on the next business day after the previously
scheduled Expiration Time. During any such extension, all Shares previously
tendered and not withdrawn will remain subject to the Offer, subject to the
right of a tendering stockholder to withdraw such stockholder's Shares.

<PAGE>   3
================================================================================
     Except as otherwise provided below, tenders of Shares are irrevocable.
Shares tendered pursuant to the Offer may be withdrawn at any time prior to the
Expiration Date and, unless theretofore accepted for payment and paid for by
Purchaser pursuant to the Offer, may also be withdrawn at any time after August
13, 1999. For a withdrawal to be effective, a written or facsimile transmission
of a notice of withdrawal must be timely received by the Depositary at one of
its addresses set forth on the back cover of the Offer to Purchase and must
specify the name of the person having tendered the Shares to be withdrawn, the
number of Shares to be withdrawn and (if Share Certificates have been tendered)
the name of the registered holder of the Shares to be withdrawn, if different
from the name of the person who tendered the Shares. If Share Certificates
evidencing Shares to be withdrawn have been delivered or otherwise identified
to the Depositary, then, prior to the physical release of those Share
Certificates, the serial numbers shown on the particular Share Certificates to
be withdrawn must be submitted to the Depositary and the signature on the
notice of withdrawal must be guaranteed by an Eligible Institution (as such term
is defined in the Offer to Purchase), unless the Shares have been tendered for
the account of an Eligible Institution. If Shares have been delivered pursuant
to the procedures for book-entry transfer as set forth in the Offer to
Purchase, any notice of withdrawal must also specify the name and number of the
account as the Book-Entry Transfer Facility to be credited with the withdrawn
Shares and otherwise comply with such Book-Entry Transfer Facility's
procedures. Withdrawals of tenders of Shares may not be rescinded, and any
Shares properly withdrawn will thereafter be deemed not validly tendered for
purposes of the Offer. However, withdrawn Shares may be retendered by again
following one of the procedures described in the Offer to Purchase at any time
prior to the Expiration Date. All questions as to the form and validity
(including time of receipt) of notices of withdrawal will be determined by
Purchaser, in its sole discretion, whose determination will be final and
binding.

     The Offer to Purchase and the related Letter of Transmittal and other
relevant materials will be mailed to record holders of Shares and furnished to
brokers, dealers, banks, trust companies and similar persons whose names, or
the names of whose nominees, appear on the stockholder lists or, if applicable,
who are listed as participants in a clearing agency's security position
listing, for subsequent transmittal to beneficial owners of Shares.

     The information required to be disclosed by Rule 14d-6(e)(1)(vii) of the
Securities Exchange Act of 1934, as amended, is contained in the Offer to
Purchase and is incorporated herein by reference.

     The Offer to Purchase and Letter of Transmittal contain important
information which should be read before any decision is made with respect to
the Offer.

     Questions and requests for assistance may be directed to the Information
Agent or the Dealer Manager at their respective addresses and telephone numbers
set forth below. Copies of the Offer to Purchase and the related Letter of
Transmittal and other tender offer materials may be obtained from the
Information Agent as its address and telephone number set forth below and will
be furnished promptly at Purchaser's expense. No fees or commissions will be
paid to brokers, dealers or other persons (other than the Dealer Manager,
Depositary and Information Agent) for soliciting tenders of Shares pursuant to
the Offer.

                    The Information Agent for the Offer is:
                           BEACON HILL PARTNERS, INC.
                          90 Broad Street - 20th Floor
                            New York, New York 10004

                         Call Toll-Free: 1-800-755-5001
                 Banks and Brokers call collect: (212) 843-8500

                      The Dealer Manager for the Offer is:
                                LEHMAN BROTHERS
                          Three World Financial Center
                                200 Vesey Street
                            New York, New York 10285

                 Call collect: (212) 526-5580 or (212) 526-2843
June 14, 1999
================================================================================

<PAGE>   1
                                                                EXHIBIT (a)(8)




MERCK KGaA, DARMSTADT, GERMANY TO MAKE TENDER OFFER FOR ALL OUTSTANDING SHARES
OF VWR SCIENTIFIC PRODUCTS CORPORATION.

     Merck KGaA, Darmstadt, Germany announced that its indirect subsidiary EM
Laboratories, Inc., Hawthorne, New York, has entered into an Agreement and Plan
of Merger, dated as of June 8, 1999, by which a Merck KGaA subsidiary set up
specifically for this transaction will make a tender offer to acquire all of
the Common Stock of VWR Scientific Products Corporation, West Chester, PA, USA
(VWRX) not currently held by EM Laboratories and its affiliates for US $37.00
per share. The tender offer will be made for approx. 15,000,000 shares and all
outstanding options.

     The offer will be followed by a merger in which any remaining stock of VWR
will be exchanged for cash at the same price per share paid in the tender offer.

     The tender offer is conditioned on the receipt of a majority of the VWR
Common Stock not held by EM Laboratories and its affiliates, as well as
approval of the antitrust authorities and other customary conditions. The Merck
Group already holds a 49.9% equity position in the company.

     The planned acquisition of all remaining shares of VWR will consolidate
Merck's laboratory distribution business in the North American
market place.

     With sales in excess of US $1.3 billion, VWR is one of the leading
suppliers of laboratory equipment, chemicals, production supplies, science
education materials and general supplies to the scientific market place.

     VWR operates an extensive distribution network consisting of five highly
automated regional distribution centers and over 50 service centers and
just-in-time facilities. VWR currently offers over 350,000 products from more
than 1,800 vendors and is a pioneer in integrated business services and
electronic commerce solutions.

     With the acquisition of VWR, together with the recently established Merck
Eurolab N.V., the holding and management company for Merck KGaA's European
laboratory distribution activities, the Merck Group will further improve its
ability to offer its customers enhanced services in the laboratory supply
business.

     Merck KGaA is a worldwide operating group of companies with activities in
pharmaceuticals, specialty chemicals and the production and distribution of
laboratory products. In 1998 annual revenues exceeded DM 8 billion.


<PAGE>   2

                         Merck plant Ubernahme von VWR

                            Angebot an US-Aktionare

Darmstadt/New York, 9. Juni 1999 -- Die Merck-Gruppe hat durch ihre US-Tochter
EM Laboratories, Inc. am Dienstag abend in New York (8.6) eine Vereinbarung
abgeschlossen, nach der eine speziell zu diesem Zweck gegrundete Merck
Gesellschaft ein offentliches Angebot zur Ubernahme aller ausstehenden Aktien
der VWR Scientific Products Corporation, West Chester, PA, USA (VWRX) zum Preis
von USD 37,00 pro Aktie abgeben wird. Merck wird ca. 15 Millionen Aktien sowie
alle ausstehenden Optionen uebernehmen.

Diesem Angebot wird eine Fusion mit der neuen Gesellschaft folgen, in der alle
dann ausstehenden Aktien zum gleichen Preis umgetauscht werden.

Das offentliche Angebot ist abhangig vom Erhalt der Mehrheit der ausstehenden
Aktien, die nicht bereits im Besitz von EM Laboratories, Inc. oder einer anderen
Merck Gesellschaft sind.

Wie die Merck-Pressestelle mitteilt, bedarf das Angebot der Zustimmung der
Kartellbehorden.

<PAGE>   3
Durch die geplante Ubernahme der ausstehenden Aktien von VWR SP, an der die
Merck-Gruppe bereits 49,9 Prozent der Anteile halt, wird das
Labordistributionsgeschaft von Merck auf dem amerikanischen Markt arrondiert.
Mit VWR Scientific Products Corporation und der Anfang des Jahres gegrundeten
Merck Eurolab N.V. kann die Merck-Gruppe ihren Kunden Produkte und
Dienstleistungen fur die Laborvollversorgung noch besser anbieten.

Mit einem Umsatz von mehr als USD 1,3 Mrd. im vergangenen Jahr ist VWR
Scientific Products Corporation einer der fuhrenden Anbieter von Laborgeraten,
Laborchemikalien, Verbrauchsmaterialien fuer Reinstraume, Lehrmittel fur den
Chemie-, Biologie- und Physikunterricht sowie von Dienstleistungen fur alle
Bereiche von Forschung, Lehre und Industrie.

Mit einem grossflachigen Netzwerk, bestehend aus funf vollautomatisierten
regionalen Distributionszentren, komplettiert durch uber 50 lokale
Servicezentren, bietet VWR SP uber 350.000 Produkte von mehr als 1.800
Lieferanten an.

<PAGE>   4
VWR SP ist der Pionier fur integrierte Geschaftsprozesse im Laborbereich und
ist fuhrend in der Implementierung von Electronic-Commerce Losungen.

Merck KGaA ist ein weltweit operierendes Unternehmen mit den Bereichen Pharma,
Labor und Spezialchemie und erzielte 1998 einen Jahresumsatz von mehr als 8
Mrd. DM, davon entfallen auf den Laborbereich 1,9 Mrd DM.

<PAGE>   1
                                                                  EXHIBIT (c)(1)


                          AGREEMENT AND PLAN OF MERGER
                               dated JUNE 8, 1999
                                      among
                         EM LABORATORIES, INCORPORATED,
                               EM SUBSIDIARY, Inc.
                                       and
                       VWR SCIENTIFIC PRODUCTS CORPORATION
<PAGE>   2
                                TABLE OF CONTENTS


<TABLE>
<CAPTION>
                                                                                                                    PAGE
<S>                                                                                                                 <C>
ARTICLE I  -          THE OFFER..................................................................................    2

         Section 1.1.      The Offer.............................................................................    2

         Section 1.2.      Company Actions.......................................................................    3

         Section 1.3.      Standstill Agreement..................................................................    5

ARTICLE II  -         THE MERGER.................................................................................    5

         Section 2.1.      The Merger............................................................................    5

         Section 2.2.      Effective Time; Closing...............................................................    5

         Section 2.3.      Effects of the Merger.................................................................    5

         Section 2.4.      Articles of Incorporation and By-laws; Officers and Directors.........................    5

ARTICLE III  -        EFFECT OF THE MERGER ON THE STOCK OF THE  CONSTITUENT CORPORATIONS; SURRENDER OF
                      CERTIFICATES...............................................................................    6

         Section 3.1.      Effect on Stock.......................................................................    6

         Section 3.2.      Surrender of Certificates.............................................................    6

ARTICLE IV  -         REPRESENTATIONS AND WARRANTIES OF THE COMPANY..............................................    8

         Section 4.1.      Organization..........................................................................    8

         Section 4.2.      Subsidiaries..........................................................................    9

         Section 4.3.      Capital Structure.....................................................................    9

         Section 4.4.      Authorization; Binding Agreement.....................................................    10

         Section 4.5.      Consents and Approvals; No Violations................................................    10

         Section 4.6.      SEC Documents and Other Reports......................................................    10

         Section 4.7.      Absence of Materially Adverse Change.................................................    11

         Section 4.8.      Information Supplied.................................................................    11

         Section 4.9.      Compliance with Laws.................................................................    12

         Section 4.10.     Permits..............................................................................    12

         Section 4.11.     Contracts............................................................................    12

         Section 4.12.     Taxes and Tax Returns................................................................    12

         Section 4.13.     Litigation and Liabilities...........................................................    14

         Section 4.14.     Employee Benefit Plans...............................................................    14

         Section 4.15.     Environmental Matters................................................................    16
</TABLE>


                                      -i-
<PAGE>   3
                                TABLE OF CONTENTS
                                   (CONTINUED)


<TABLE>
<CAPTION>
                                                                                                                    PAGE
<S>                                                                                                                 <C>
         Section 4.16.     Charter Provisions...................................................................    18

         Section 4.17.     Intellectual Property................................................................    18

         Section 4.18.     Labor Relations......................................................................    18

         Section 4.19.     Insurance............................................................................    19

         Section 4.20.     Finders and Investment Bankers.......................................................    19

         Section 4.21.     Contracts; Indebtedness..............................................................    19

ARTICLE V  -          REPRESENTATIONS AND WARRANTIES OF PARENT AND SUB..........................................    19

         Section 5.1.      Organization.........................................................................    19

         Section 5.2.      Authority............................................................................    19

         Section 5.3.      Consents and Approvals; No Violations................................................    20

         Section 5.4.      Information Supplied.................................................................    20

         Section 5.5.      Interim Operations of Sub............................................................    21

         Section 5.6.      Finders and Investment Bankers.......................................................    21

         Section 5.7.      Financing............................................................................    21

ARTICLE VI  -         COVENANTS RELATING TO CONDUCT OF BUSINESS.................................................    21

         Section 6.1.      Conduct of Business by the Company Pending the Merger................................    21

         Section 6.2.      No Solicitation......................................................................    23

         Section 6.3.      Disclosure to Parent; Delivery of Certain Filings....................................    24

ARTICLE VII  -        ADDITIONAL AGREEMENTS.....................................................................    24

         Section 7.1.      Shareholder Approval; Preparation of Proxy Statement.................................    24

         Section 7.2.      Access to Information................................................................    25

         Section 7.3.      Expenses.............................................................................    26

         Section 7.4.      Public Announcements.................................................................    26

         Section 7.5.      State Takeover Laws..................................................................    26

         Section 7.6.      Indemnification, Exculpation and Insurance...........................................    26

         Section 7.7.      Notification of Certain Matters......................................................    27

         Section 7.8.      Board of Directors...................................................................    27

         Section 7.9.      Additional Agreements................................................................    28

         Section 7.10.     Certain Litigation...................................................................    29
</TABLE>


                                      -ii-
<PAGE>   4
                                TABLE OF CONTENTS
                                   (CONTINUED)


<TABLE>
<CAPTION>
                                                                                                                    PAGE
<S>                                                                                                                 <C>
         Section 7.11.     Severance Payments...................................................................    29

ARTICLE VIII  -       CONDITIONS PRECEDENT......................................................................    29

         Section 8.1.      Conditions to Each Party's Obligation to Effect the Merger...........................    29

         Section 8.2.      Conditions of Obligations of Parent and Sub..........................................    30

ARTICLE IX  -         TERMINATION AND AMENDMENT.................................................................    30

         Section 9.1.      Termination..........................................................................    30

         Section 9.2.      Effect of Termination and Abandonment................................................    31

         Section 9.3.      Amendment............................................................................    32

         Section 9.4.      Waiver...............................................................................    32

ARTICLE X  -          GENERAL PROVISIONS........................................................................    32

         Section 10.1.     Non-Survival of Representations and Warranties and Agreements........................    32

         Section 10.2.     Notices..............................................................................    32

         Section 10.3.     Interpretation; Definitions..........................................................    33

         Section 10.4.     Counterparts.........................................................................    37

         Section 10.5.     Entire Agreement; No Third-Party Beneficiaries.......................................    38

         Section 10.6.     Governing Law........................................................................    38

         Section 10.7.     Assignment...........................................................................    38

         Section 10.8.     Severability.........................................................................    38

         Section 10.9.     Enforcement of this Agreement........................................................    38

         Section 10.10.    Obligations of Subsidiaries..........................................................    38

         Section 10.11.    Merger of the Company into Sub.......................................................    38
</TABLE>


                                      -iii-
<PAGE>   5
                          AGREEMENT AND PLAN OF MERGER


                  AGREEMENT AND PLAN OF MERGER, dated June 8, 1999 (this
"Agreement") among EM Laboratories, Incorporated, a New York corporation
("Parent"), EM Subsidiary, Inc., a Pennsylvania corporation and a wholly-owned
subsidiary of Parent ("Sub"), and VWR Scientific Products Corporation, a
Pennsylvania corporation (the "Company") (Sub and the Company being hereinafter
collectively referred to as the "Constituent Corporations"). Except as otherwise
set forth herein, capitalized (and certain other) terms used herein shall have
the meanings set forth in Section 10.3.


                              W I T N E S S E T H:

                  WHEREAS, the respective Boards of Directors of Parent, Sub and
the Company have approved the acquisition of the Company by Parent on the terms
and subject to the conditions set forth in this Agreement;

                  WHEREAS, in furtherance of such acquisition, Parent proposes
to cause Sub to make a cash tender offer (as it may be amended from time to time
as permitted under this Agreement, the "Offer") to acquire all of the issued and
outstanding shares of Common Stock, par value $1.00, of the Company (the
"Shares") (other than Shares owned by Parent or any Affiliate thereof and
excluding Shares owned by the Company or by any Subsidiary of the Company) at a
purchase price of $37.00 per Share (such purchase price being referred to as the
"Offer Price"), net to the seller in cash, without interest thereon, upon the
terms and subject to the conditions set forth in this Agreement; and the
Unaffiliated Directors have unanimously adopted resolutions approving the Offer,
this Agreement and the Merger and recommending that the Company's shareholders
accept the Offer and adopt this Agreement;

                  WHEREAS, the respective Boards of Directors of Sub and the
Company have each approved the merger of Sub with and into the Company (the
"Merger"), upon the terms and subject to the conditions set forth in this
Agreement, whereby each of the Shares, other than Shares owned directly or
indirectly by Parent, Sub or the Company and Dissenting Shares, will be
converted into the right to receive the price per Share paid in the Offer;

                  WHEREAS, the Unaffiliated Directors have unanimously approved
the terms of the Shareholders Agreement (the "Shareholders Agreement") to be
entered into by Parent, Sub and certain holders of Shares, pursuant to which
such holders have, among other things, agreed to vote such shares in favor of
the Merger and tender such shares pursuant to the Offer; and

                  WHEREAS, Parent, Sub and the Company desire to make certain
representations, warranties, covenants and agreements in connection with the
Offer and the Merger and also to prescribe various conditions to the Offer and
the Merger.

                  NOW, THEREFORE, in consideration of the foregoing and the
mutual covenants and agreements herein contained, and intending to be legally
bound hereby, Parent, Sub and the Company hereby agree as follows:
<PAGE>   6
                             ARTICLE I - THE OFFER

         Section 1.1 The Offer.

         (a) Provided that this Agreement shall not have been terminated in
accordance with Section 9.1, and subject to the provisions of this Agreement, as
promptly as practicable but in no event later than five business days after the
date of the public announcement by Parent and the Company of this Agreement, Sub
shall, and Parent shall cause Sub to, commence the Offer. The offer to purchase
which is sent to the Company's shareholders in connection with the Offer shall
provide for an initial expiration date for the Offer (the "Expiration Date"") of
20 business days (as defined in Rule 14d-1 under the Exchange Act) from the date
of commencement of the Offer. The obligation of Sub to, and of Parent to cause
Sub to, commence the Offer and accept for payment, and pay for, any Shares
tendered pursuant to the Offer shall be subject only to the conditions set forth
in Exhibit A (the "Offer Conditions") (all of which are for the benefit of, and
may be asserted by Sub regardless of the circumstances giving rise to any such
condition and any of which may be waived in whole or in part by Sub in its sole
discretion, provided that, without the prior written consent of the Company, Sub
shall not waive the Minimum Condition (as defined in Exhibit A)). Sub expressly
reserves the right to modify the terms of the Offer, except that, without the
prior written consent of the Company, Sub shall not (i) reduce the number of
Shares to be purchased in the Offer, (ii) reduce the Offer Price, (iii) impose
any conditions to the Offer in addition to the Offer Conditions or modify the
Offer Conditions (other than to waive any Offer Conditions to the extent not
prohibited by this Agreement), (iv) except as provided in the next sentence,
extend the Offer, (v) change the form of consideration payable in the Offer or
(vi) make any other change or modification in any of the terms of the Offer in
any manner that is adverse to the holders of Shares. Notwithstanding the
foregoing, Sub may, without the consent of the Company, (i) extend the Offer, if
at the Expiration Date or extended expiration date of the Offer any of the Offer
Conditions shall not be satisfied or waived, until such time as such conditions
are satisfied or waived, (ii) extend the Offer for any period required by any
rule, regulation, interpretation or position of the SEC or the staff thereof
applicable to the Offer and (iii) on one or more occasions, extend the Offer for
a period of up to an aggregate of 15 business days if, on a scheduled expiration
date on which the Offer Conditions shall have been satisfied or waived, the
number of Shares that have been validly tendered and not withdrawn pursuant to
the Offer, when taken together with the Shares owned by Parent, Sub or an
Affiliate thereof do not constitute at least 80% of the then issued and
outstanding Shares. Parent and Sub agree that Sub shall not terminate the Offer
between scheduled expiration dates (except in the event that this Agreement is
terminated pursuant to Section 9.1) and that, in the event that Sub would
otherwise be entitled to terminate the Offer at any scheduled expiration date
thereof due to the failure of one or more of the Offer Conditions, unless this
Agreement shall have been terminated pursuant to Section 9.1, Sub shall, and
Parent shall cause Sub to, extend the Offer until such date as the Offer
Conditions have been satisfied or such later date as required by applicable law;
provided, however, that nothing herein shall require Sub to extend the Offer
beyond the Outside Date; provided, further, that neither Parent nor Sub shall be
obligated to make any such extension if, in the reasonable belief of Parent or
Sub, as applicable, all Offer Conditions are not capable of being satisfied
prior to the Outside Date. Subject to the terms and conditions of the Offer and
this Agreement, Sub shall, and Parent shall cause Sub to, accept for payment and
pay for, all


                                       2
<PAGE>   7
Shares validly tendered and not withdrawn pursuant to the Offer that Sub is
permitted to accept for payment and pay for under applicable law, as soon as
practicable (and, in any event, within three business days after the later of
the expiration of the Offer and the receipt by the depository for the Offer of
the certificates representing such tendered Shares). If this Agreement is
terminated pursuant to Section 9.1(d), Parent or Sub shall terminate the Offer.
Sub may, at any time, transfer or assign to one or more corporations directly or
indirectly wholly-owned by Parent the right to purchase all or any portion of
the Shares tendered pursuant to the Offer, but any such transfer or assignment
shall not relieve Sub of its obligations under the Offer or prejudice the rights
of tendering shareholders to receive payment for Shares validly tendered and
accepted for payment.

         (b) On the date of commencement of the Offer, Parent and Sub shall file
with the SEC (i) a Tender Offer Statement on Schedule 14D-1 (the "Schedule
14D-1") and (ii) a Rule 13e-3 Transaction Statement on Schedule 13E-3 (the
"Schedule 13E-3") with respect to the Offer, which shall contain an offer to
purchase and a related letter of transmittal and summary advertisement (such
Schedule 14D-1 and Schedule 13E-3 and the documents included therein pursuant to
which the Offer shall be made, together with any supplements or amendments
thereto, the "Offer Documents"), and Parent and Sub shall cause the Offer
Documents to be disseminated to holders of Shares as and to the extent required
by applicable federal securities laws. Parent, Sub and the Company each agrees
promptly to correct any information provided by it for use in the Offer
Documents if and to the extent that such information shall have become false or
misleading in any material respect, and Parent and Sub further agree to take all
steps necessary to cause the Schedule 14D-1 and the Schedule 13E-3 as so
corrected to be filed with the SEC and the other Offer Documents as so corrected
to be disseminated to holders of Shares, in each case as and to the extent
required by applicable federal securities laws. The Company and its counsel
shall be given reasonable opportunity to review and comment upon the Offer
Documents prior to their filing with the SEC or dissemination to the Company's
shareholders. Parent and Sub agree to provide the Company and its counsel any
comments Parent, Sub or their counsel may receive from the SEC or its staff with
respect to the Offer Documents promptly after the receipt of such comments and
to cooperate with the Company and its counsel in responding to such comments.

         (c) Parent shall provide or cause to be provided to Sub on a timely
basis all funds necessary to accept for payment, and pay for, any Shares that
are validly tendered and not withdrawn pursuant to the Offer and that Sub is
permitted to accept for payment under applicable law and pay for, pursuant to
the Offer.

         Section 1.2. Company Actions.

         (a) The Company hereby approves of and consents to the Offer and
represents and warrants that the Board of Directors of the Company, at a meeting
duly called and held, duly adopted (by unanimous vote, with the Affiliated
Directors (as defined in the Standstill Agreement) not participating)
resolutions approving the Offer, this Agreement, the Merger and the Shareholders
Agreement, determining that the Offer and the Merger are fair to, and in the
best interests of, the Company's shareholders and recommending that the
Company's shareholders accept the Offer and approve and adopt this Agreement and
the Merger. Simultaneously with the execution of this Agreement, each of the
Unaffiliated Directors of the


                                       3
<PAGE>   8
Company has indicated to the Company that he intends to tender and sell his
Shares in response to the Offer, except that Unaffiliated Directors whose sales
of their Shares in response to the Offer might result in liability under Section
16(b) of the Exchange Act intend that if they do not tender and sell their
Shares in response to the Offer, they shall vote their Shares in favor of the
Merger. The Company represents and warrants that its Board of Directors has
received the opinion of each of BT Alex. Brown Incorporated ("BT Alex. Brown")
and Warburg Dillon Read LLC ("Warburg Dillon Read") to the effect that, as of
the date of this Agreement, the cash consideration to be received in the Offer
and the Merger by holders of Shares (other than Parent and Affiliates thereof)
is fair to such holders from a financial point of view. The Company hereby
consents to the inclusion in the Offer Documents of the recommendations of the
Company's Board of Directors described in this Section 1.2.

         (b) On the date the Offer Documents are filed with the SEC, the Company
shall file with the SEC a Solicitation/Recommendation Statement on Schedule
14D-9 with respect to the Offer (such Schedule 14D-9, as amended from time to
time, the "Schedule 14D-9") containing the recommendation described in Section
1.2(a) and shall cause the Schedule 14D-9 to be disseminated to the Company's
shareholders as and to the extent required by applicable federal securities
laws. Each of the Company, Parent and Sub agrees promptly to correct any
information provided by it for use in the Schedule 14D-9 if and to the extent
that such information shall have become false or misleading in any material
respect, and the Company further agrees to take all steps necessary to amend or
supplement the Schedule 14D-9 and to cause the Schedule 14D-9 as so amended or
supplemented to be filed with the SEC and disseminated to the Company's
shareholders, in each case as and to the extent required by applicable federal
securities laws. Parent and its counsel shall be given reasonable opportunity to
review and comment upon the Schedule 14D-9 prior to its filing with the SEC or
dissemination to the Company's shareholders. The Company agrees to provide
Parent and its counsel any comments the Company or its counsel may receive from
the SEC or its staff with respect to the Schedule 14D-9 promptly after the
receipt of such comments and to cooperate with Parent, Sub and their counsel in
responding to such comments.

         (c) In connection with the Offer and the Merger, the Company shall
cause its transfer agent to furnish Sub promptly with mailing labels containing
the names and addresses of the record holders of Shares as of a recent date and
of those Persons becoming record holders subsequent to such date, together with
copies of all lists of shareholders, security position listings and computer
files and all other information in the Company's possession or control regarding
the beneficial owners of Shares, and shall furnish to Sub such information and
assistance (including updated lists of shareholders, security position listings
and computer files) as Parent or Sub may reasonably request in communicating the
Offer to the record and beneficial holders of Shares. Subject to the
requirements of applicable law, and except for such steps as are necessary to
disseminate the Offer Documents and any other documents necessary to consummate
the Merger, Parent and Sub and their Affiliates, associates and agents shall
hold in confidence the information contained in any such labels, listings and
files, shall use such information only in connection with the Offer and the
Merger and, if this Agreement shall be terminated, shall promptly, upon request,
deliver, and shall use reasonable efforts to cause their Affiliates, associates
and agents to deliver, to the Company all copies of such information then in
their possession or control.


                                       4
<PAGE>   9
         Section 1.3. Standstill Agreement. Effective upon the acquisition of
Shares pursuant to the Offer, the Standstill Agreement shall terminate in its
entirety.

                            ARTICLE II - THE MERGER

         Section 2.1. The Merger. Upon the terms and subject to the conditions
hereof, and in accordance with the PBCL, Sub shall be merged with and into the
Company at the Effective Time. Following the Effective Time, the separate
corporate existence of Sub shall cease and the Company shall continue as the
surviving corporation (the "Surviving Corporation") and shall succeed to and
assume all the rights and obligations of Sub and the Company in accordance with
the PBCL.

         Section 2.2. Effective Time; Closing. As promptly as practicable after
the satisfaction or, if permissible, waiver of the conditions set forth in
Article VIII, the parties hereto shall cause the Merger to be consummated by
delivering to the Secretary of State of the Commonwealth of Pennsylvania the
articles of merger, in such form as required by, and executed and acknowledged
in accordance with, the relevant provisions of the PBCL (the "Articles of
Merger"), and shall make all other filings and recordings required by the PBCL
in connection with the Merger. The Merger shall become effective at the time of
filing of the Articles of Merger with the Secretary of State of the Commonwealth
of Pennsylvania, or at such later time, which shall be as soon as reasonably
practicable, specified as the effective time in the Articles of Merger (the
"Effective Time"). Prior to such filing, a closing shall be held at the offices
of Rogers & Wells LLP, 200 Park Avenue, New York, New York 10166, USA, or such
other place as the parties shall agree, for the purpose of confirming the
satisfaction or waiver, as the case may be, of the conditions set forth in
Article VIII.

         Section 2.3. Effects of the Merger. The Merger shall have the effects
set forth in Section 1929 of the PBCL.

         Section 2.4. Articles of Incorporation and By-laws; Officers and
Directors.

         (a) The Articles of Incorporation of the Company, as in effect
immediately prior to the Effective Time, shall be the Articles of Incorporation
of the Surviving Corporation until thereafter changed or amended as provided
therein or by applicable law.

         (b) The By-laws of the Company shall be amended as of the Effective
Time to read in their entirety as the By-laws of Sub, as in effect immediately
prior to the Effective Time, until thereafter changed or amended as provided,
therein, by the Articles of Incorporation of the Surviving Corporation or by
applicable law.

         (c) The directors of Sub immediately prior to the Effective Time shall
be the directors of the Surviving Corporation, until the next annual meeting of
shareholders of the Surviving Corporation (or the earlier of their resignation
or removal) and until their respective successors are duly elected and
qualified, as the case may be.

         (d) The officers of the Company immediately prior to the Effective Time
shall be the officers of the Surviving Corporation until the earlier of their
resignation or removal and until their respective successors are duly elected
and qualified, as the case may be.


                                       3
<PAGE>   10
             ARTICLE III - EFFECT OF THE MERGER ON THE STOCK OF THE
               CONSTITUENT CORPORATIONS; SURRENDER OF CERTIFICATES

         Section 3.1. Effect on Stock. As of the Effective Time, by virtue of
the Merger and without any action on the part of any of Sub, the Company or the
holders of any securities of the Constituent Corporations and in accordance with
Section 1906 of the PBCL:

                  (a) Capital Stock of Sub. Each issued and outstanding share of
         capital stock of Sub shall be converted into and become one validly
         issued, fully paid and nonassessable share of common stock, $1.00 par
         value, of the Surviving Corporation.

                  (b) Treasury Stock and Parent Owned Stock. Each Share that is
         owned by the Company or by any Subsidiary of the Company and each Share
         that is owned by Parent, Sub or any other Subsidiary of Parent shall
         automatically be cancelled and retired and shall cease to exist, and no
         consideration shall be delivered in exchange therefor.

                  (c) Conversion of Shares. Subject to Section 3.1(d), each
         Share issued and outstanding (other than Shares to be cancelled in
         accordance with Section 3.1(b)), shall be cancelled and be converted
         into the right to receive from the Surviving Corporation in cash,
         without interest or dividends, the price per Share paid in the Offer
         (the "Merger Consideration"). As of the Effective Time, all such Shares
         shall be cancelled, and when so cancelled, shall no longer be
         outstanding and shall automatically be retired and shall cease to
         exist, and each holder of a certificate representing any such Shares
         shall cease to have any rights with respect thereto, except the right
         to receive the Merger Consideration for each such Share, without
         interest or dividends.

                  (d) Shares of Dissenting Shareholders. Notwithstanding
         anything in this Agreement to the contrary, any issued and outstanding
         Shares held by a Person (a "Dissenting Shareholder") who has not voted
         in favor of or consented to the Merger and complies in all respects
         with Sections 1930 and 1575 through 1580 of the PBCL concerning the
         right of holders of Shares to require appraisal of their Shares
         ("Dissenting Shares") shall not be converted as described in Section
         3.1(c), but shall become the right to receive payment of the fair value
         of such Shares in accordance with Sections 1930 and 1575 through 1580
         of the PBCL. If, after the Effective Time, a holder of Dissenting
         Shares withdraws his demand for appraisal or fails to perfect or
         otherwise loses his right of appraisal, in any case pursuant to the
         PBCL, his Shares shall be deemed to be converted as of the Effective
         Time into the right to receive the Merger Consideration for each such
         Share, without interest or dividends. The Company shall give Parent
         prompt notice of any demands for appraisal of Shares received by the
         Company. The Company shall not, without the prior written consent of
         Parent, make any payment with respect to, or settle or offer to settle,
         any such demands.

         Section 3.2. Surrender of Certificates.

         (a) Paying Agent. Prior to the Effective Time, Parent shall designate a
bank or trust company who shall be reasonably satisfactory to the Company to act
as paying agent in the Merger (the "Paying Agent"), and from time to time, on,
prior to or after the Effective Time,


                                       6
<PAGE>   11
Parent shall make available, or cause the Surviving Corporation to make
available, to the Paying Agent cash in the amounts necessary for the payment of
the Merger Consideration as provided in Section 3.1 upon surrender as part of
the Merger of certificates formerly representing Shares. Funds made available to
the Paying Agent shall be invested by the Paying Agent as directed by Parent (it
being understood that any and all interest or income earned on funds made
available to the Paying Agent pursuant to this Agreement shall be turned over to
Parent).

         (b) Exchange Procedure. As soon as reasonably practicable after the
Effective Time, the Surviving Corporation shall cause the Paying Agent to mail
to each holder of record of a certificate or certificates that immediately prior
to the Effective Time represented Shares (the "Certificates"), (i) a letter of
transmittal (which shall specify that delivery shall be effected, and risk of
loss and title to the Certificates shall pass, only upon delivery of the
Certificates to the Paying Agent and shall be in a form and have such other
provisions as Parent may reasonably specify) and (ii) instructions for use in
effecting the surrender of the Certificates in exchange for the Merger
Consideration as provided in Section 3.1. Upon surrender of a Certificate for
cancellation to the Paying Agent or to such other agent or agents as may be
appointed by Parent, together with such letter of transmittal, duly executed,
and such other documents as may reasonably be required by the Paying Agent, the
holder of such Certificate shall be entitled to receive in exchange therefor the
amount of cash, without interest or dividends, into which the Shares theretofore
represented by such Certificate shall have been converted pursuant to Section
3.1, and the Certificate so surrendered shall forthwith be cancelled. In the
event of a transfer of ownership of Shares that is not registered in the
transfer records of the Company, payment may be made to a Person other than the
Person in whose name the Certificate so surrendered is registered, if such
Certificate shall be properly endorsed or otherwise be in proper form for
transfer and the Person requesting such payment shall pay any transfer or other
taxes required by reason of the payment to a Person other than the registered
holder of such Certificate or establish to the satisfaction of the Surviving
Corporation that such tax has been paid or is not applicable. Until surrendered
as contemplated by this Section 3.2, each Certificate (other than Certificates
representing Dissenting Shares) shall be deemed at any time after the Effective
Time to represent only the right to receive upon such surrender the amount of
cash, without interest or dividends, into which the Shares of stock theretofore
represented by such Certificate shall have been converted pursuant to Section
3.1. No interest shall be paid or shall accrue on the cash payable upon the
surrender of any Certificate. Parent or the Paying Agent shall be entitled to
deduct and withhold from the consideration otherwise payable pursuant to this
Agreement to any holder of Shares such amounts as Parent or the Paying Agent is
required to deduct and withhold with respect to the making of such payment under
the Code or under any provision of state, local or foreign tax law. To the
extent that amounts are so withheld by Parent or the Paying Agent, such withheld
amounts shall be treated for all purposes of this Agreement as having been paid
to the holder of the Shares in respect of which such deduction and withholding
was made by the Parent or the Paying Agent.

         (c) No Further Ownership Rights in Shares. All cash paid upon the
surrender of Certificates in accordance with the terms of this Article III shall
be deemed to have been paid in full satisfaction of all rights pertaining to the
Shares theretofore represented by such Certificates. At the Effective Time, the
stock transfer books of the Company shall be closed, and there shall be no
further registration of transfers on the stock transfer books of the Surviving
Corporation of the Shares that were outstanding immediately prior to the
Effective Time. If, after the Effective


                                       7
<PAGE>   12
Time, Certificates are presented to the Surviving Corporation or the Paying
Agent for any reason, they shall be cancelled and exchanged as provided in this
Article III.

         (d) Termination of Payment Fund. Any portion of the funds made
available to the Paying Agent to pay the Merger Consideration which remains
undistributed to the holders of Shares for six months after the Effective Time
shall be delivered to Parent, upon demand, and any holders of Shares who have
not theretofore complied with this Article III and the instructions set forth in
the letter of transmittal mailed to such holders after the Effective Time shall
thereafter look only to the Surviving Corporation (subject to abandoned
property, escheat or other similar laws) for payment of the Merger Consideration
to which they are entitled, without interest or dividends.

         (e) No Liability. None of Parent, Sub, the Company or the Paying Agent
shall be liable to any Person in respect of any cash delivered to a public
official pursuant to any applicable abandoned property, escheat or similar law.

         (f) Company Options. The Company hereby represents and warrants that
either (i) all outstanding options to purchase Shares (the "Company Options"")
granted under the Company's 1986 Long Term Incentive Stock Plan and the 1995
Stock Incentive Plan (the "Company Option Plans"), whether or not then
exercisable or vested, shall, pursuant to the terms of the Company Option Plans,
be cancelled as of the consummation of the Offer and the holders thereof shall
be entitled to receive from Parent upon consummation of the Offer, in respect of
each Share subject to such Company Option, an amount in cash equal to the
excess, if any, of the Merger Consideration over the exercise price per share
thereof (such payment to be net of applicable withholding taxes) or (ii) the
Company shall take all such steps as shall be necessary to achieve substantially
the same result as described in clause (i) of this paragraph (f).

         (g) Company Option Plans. The Company hereby represents and warrants
that all Company Option Plans provide, or have been or will be amended as and
when required to provide for the actions described in Section 3.2(f) hereof. The
Company shall cause the Company Option Plans to terminate as of the Effective
Time.

           ARTICLE IV - REPRESENTATIONS AND WARRANTIES OF THE COMPANY

         In addition to the representations and warranties of the Company in
Sections 1.2 and 3.2(f) and (g) hereof, the Company represents and warrants to
Parent and Sub as follows:

         Section 4.1. Organization. The Company and each of its Subsidiaries is
a corporation duly organized, validly existing and in good standing under the
laws of the jurisdiction of its incorporation and has requisite corporate power
and authority to carry on its business as now being conducted. The Company and
each of its Subsidiaries is duly qualified or licensed to do business and in
good standing in each jurisdiction in which the nature of its business or the
ownership or leasing of its properties makes such qualification or licensing
necessary, except in such jurisdictions where the failure to be so duly
qualified or licensed and in good standing would not reasonably be expected to
have a Materially Adverse Effect on the Company or prevent or materially delay
the consummation of the Offer and/or the Merger. The Company has delivered to
Parent complete and correct copies of its Articles of Incorporation and


                                       8
<PAGE>   13
By-laws and has made available to Parent the Articles of Incorporation and
By-laws (or similar organizational documents) of each of its Subsidiaries.

         Section 4.2. Subsidiaries. Exhibit A of the Company Letter lists each
Subsidiary of the Company. All of the outstanding shares of capital stock of
each Subsidiary that is a corporation have been validly issued and are fully
paid and nonassessable. Except as set forth in Item 4.2 of the Company Letter,
all of the outstanding shares of capital stock of each Subsidiary of the Company
are owned by the Company, free and clear of all Liens. Except as set forth in
Item 4.2 of the Company Letter and except for the capital stock of its
Subsidiaries, the Company does not own, directly or indirectly, any material
capital stock or other ownership interest in any corporation, partnership, joint
venture, limited liability company or other entity.

         Section 4.3. Capital Structure. The authorized capital stock of the
Company consists of 25,000,000 shares of Preferred Stock, $1.00 par value (the
"Preferred Stock") and 120,000,000 shares of Common Stock, par value $1.00. At
the close of business on March 31, 1999, (i) no shares of Preferred Stock were
outstanding, (ii) 28,962,527 shares of Common Stock were issued and outstanding,
(iii) 4,978 shares of Common Stock were held by the Company in treasury and (iv)
2,396,184 shares of Common Stock were reserved for issuance pursuant to
outstanding Company Options or other rights to purchase Shares under the Company
Option Plans, the Company's Employee Stock Ownership Plan and the Company's
Executive Bonus Plan. Except (i) as set forth above and (ii) as provided in the
Standstill Agreement, as of the date hereof, there are no outstanding (A) shares
of capital stock or other voting securities of the Company, (B) securities of
the Company convertible into or exchangeable for shares of capital stock or
voting securities of the Company, (C) options or other rights to acquire from
the Company, or other obligations, arrangements or commitments of the Company to
issue, any capital stock, voting securities or securities convertible into or
exchangeable for capital stock or voting securities of the Company or (D) equity
equivalents, stock appreciation rights, phantom stock, interests in the
ownership or earnings of the Company or other similar rights (collectively,
"Company Securities"). Each outstanding Share is, and each Share which may be
issued pursuant to the Company Option Plans and the other agreements and
instruments listed above will be, when issued, duly authorized, validly issued,
fully paid and nonassessable and not subject to preemptive rights. There are no
outstanding bonds, debentures, notes or other indebtedness of the Company having
the right to vote (or convertible into, or exchangeable for, securities having
the right to vote) on any matter on which the Company's shareholders may vote.
Except as set forth above or in Item 4.3 of the Company Letter, there are no
securities, options, warrants, calls, rights, commitments, agreements,
arrangements or undertakings of any kind to which the Company or any of its
Subsidiaries is a party or by which any of them is bound obligating the Company
or any of its Subsidiaries to issue, deliver or sell or create, or cause to be
issued, delivered or sold or created, additional shares of capital stock or
other voting securities or equity equivalents of the Company or of any of its
Subsidiaries or obligating the Company or any of its Subsidiaries to issue,
grant, extend or enter into any such security, option, warrant, call, right,
commitment, agreement, arrangement or undertaking.

         There are no outstanding contractual obligations of the Company or any
of its Subsidiaries to repurchase, redeem or otherwise acquire any Company
Securities, or any shares of capital stock of any Subsidiaries of the Company.


                                       9
<PAGE>   14
         Section 4.4. Authorization; Binding Agreement. The Company has all
requisite corporate power and authority to execute and deliver this Agreement,
to perform its obligations hereunder and to consummate the transactions
contemplated hereby. The execution, delivery and performance of this Agreement
and the consummation of the transactions contemplated hereby, including, but not
limited to, the Offer and the Merger, have been duly and validly authorized by
the Company's Board of Directors and no other corporate proceedings on the part
of the Company or any of its Subsidiaries are necessary to authorize the
execution and delivery of this Agreement or to consummate the transactions
contemplated hereby (other than the adoption of this Agreement by the
shareholders of the Company to the extent required by the PBCL). This Agreement
has been duly and validly executed and delivered by the Company and constitutes
the legal, valid and binding agreement of the Company, enforceable against the
Company in accordance with its terms, except to the extent that enforceability
hereof may be limited by applicable bankruptcy, insolvency, reorganization or
other similar laws affecting the enforcement of creditors' rights generally and
by principles of equity regarding the availability of remedies. The Board of
Directors of the Company has approved this Agreement, the Shareholder Agreement
and the transactions contemplated hereby and thereby (including but not limited
to the Offer, the Merger and the matters provided for in the Shareholder
Agreement) so as to render inapplicable hereto and thereto the limitation on
business combinations contained in Chapter 25 of the PBCL (or any similar
provision). As a result, the only vote of holders of any class or series of the
Company's capital stock required to adopt this Agreement and the transactions
contemplated hereby, including the Merger, is the affirmative vote of a majority
of the outstanding Shares, and if Section 1924(b)(1)(ii) of the PBCL is
applicable to the Merger, no such vote shall be required. No other state
takeover or control share statute or similar statute or regulation applies or
purports to apply to the Offer, the Merger, the Shareholder Agreement or any of
the transactions contemplated hereby or thereby.

         Section 4.5. Consents and Approvals; No Violations. Except as set forth
in Item 4.5 of the Company Letter, except for filings, permits, authorizations,
consents and approvals as may be required under, and other applicable
requirements of, the Exchange Act, the HSR Act, the PBCL, state takeover laws
and foreign and supranational laws relating to antitrust and anticompetition
clearances, neither the execution, delivery or performance of this Agreement by
the Company nor the consummation by the Company of the transactions contemplated
hereby nor the consummation of the transactions contemplated by the Shareholders
Agreement by the parties thereto will (i) conflict with or result in any breach
of any provision of the Articles of Incorporation or By-laws of the Company or
of the similar organizational documents of any of its Subsidiaries, (ii) require
any filing with, or permit, authorization, consent or approval of, any
Governmental Entity or other Person, (iii) result in a violation or breach of,
or constitute (with or without due notice or lapse of time or both) a default
(or give rise to any right of termination, amendment, cancellation or
acceleration) under, any of the material terms, conditions or provisions of any
note, bond, mortgage, indenture, lease, license, contract, agreement or other
instrument or obligation to which the Company or any of its Subsidiaries is a
party or by which any of them or any of their properties or assets may be bound
or (iv) violate any order, writ, injunction, decree, statute, rule or regulation
applicable to the Company, any of its Subsidiaries or any of their properties or
assets.

         Section 4.6. SEC Documents and Other Reports. The Company has filed
with the SEC all documents required to be filed by it since August 31, 1995
under the Securities Act


                                       10
<PAGE>   15
or the Exchange Act (the "Company SEC Documents"). As of their respective filing
dates, the Company SEC Documents complied in all material respects with the
requirements of the Securities Act or the Exchange Act, as the case may be, each
as in effect on the date so filed, and at the time filed with the SEC none of
the Company SEC Documents, including the financial statements of the Company and
the notes thereto, contained any untrue statement of a material fact or omitted
to state a material fact required to be stated therein or necessary to make the
statements therein, in light of the circumstances under which they were made,
not misleading. The financial statements of the Company (including the notes
thereto) included in the Company SEC Documents comply as of their respective
dates as to form in all material respects with the then applicable accounting
requirements and the published rules and regulations of the SEC with respect
thereto, have been prepared in accordance with generally accepted accounting
principles (except in the case of the unaudited statements, as permitted by Form
10-Q under the Exchange Act) applied on a consistent basis during the periods
involved (except as may be indicated therein or in the notes thereto) and fairly
present the consolidated financial position of the Company and its consolidated
Subsidiaries as at the dates thereof and the consolidated results of their
operations and their consolidated cash flows for the periods then ended
(subject, in the case of unaudited statements, to normal year-end audit
adjustments and to any other adjustments described therein none of which were or
will be material in amount or effect). The Company has heretofore furnished or
made available to Parent a complete and correct copy of any amendments or
modifications which have not yet been filed with the SEC to executed agreements,
documents or other instruments which previously had been filed by the Company
with the SEC pursuant to the Securities Act or the Exchange Act. No Subsidiary
is required to file any form, report or other document with the SEC.

         Section 4.7. Absence of Materially Adverse Change. Except as disclosed
in Item 4.7 of the Company Letter, since December 31, 1998, the Company and its
Subsidiaries have conducted their respective businesses in all material respects
only in the ordinary course, and there has not been (i) any Materially Adverse
Change with respect to the Company, (ii) any declaration, setting aside or
payment of any dividend or other distribution with respect to its capital stock
or any redemption, purchase or other acquisition of any of its capital stock,
(iii) any split, combination or reclassification of any of its capital stock or
any issuance or the authorization of any issuance of any other securities in
respect of, in lieu of or in substitution for shares of its capital stock, (iv)
any change in accounting methods, principles or practices by the Company
materially affecting its assets, liabilities, business or results of operations,
(v) any grant by the Company or its Subsidiaries to any officer of the Company
or its Subsidiaries of any increase in compensation, except as was required
under employment agreements in effect as of December 31, 1998 or as were made in
the ordinary course of business consistent with past practice, (vi) any grant by
the Company or its Subsidiaries to any such officer of any increase in severance
or termination pay, except as part of a standard employment package to any
person promoted or hired, or as was required under employment, severance or
termination agreements in effect as of December 31, 1998, (vii) any revaluation
by the Company of any of its material assets or (viii) any other action or
omission of the type described in subparagraphs (a), (b), (c), (e), (f), (g),
(h), (j), (k), (l), (m), (n) or (o) of Section 6.1.

         Section 4.8. Information Supplied. None of the information supplied or
to be supplied by the Company specifically for inclusion or incorporation by
reference in (i) the Offer Documents, (ii) the Schedule 14D-9, (iii) the
information to be filed by the Company in


                                       11
<PAGE>   16
connection with the Offer pursuant to Rule 14f-1 promulgated under the Exchange
Act (the "Information Statement") or (iv) the proxy statement (together with any
amendments or supplements thereto, the "Proxy Statement") relating to the
Shareholders Meeting, will, in the case of the Offer Documents, the Schedule
14D-9 and the Information Statement, at the respective times the Offer
Documents, the Schedule 14D-9 and the Information Statement are filed with the
SEC or first published, sent or given to the Company's shareholders, or, in the
case of the Proxy Statement, at the time the Proxy Statement is first mailed to
the Company's shareholders or at the time of the Shareholders Meeting, contain
any untrue statement of a material fact or omit to state any material fact
required to be stated therein or necessary in order to make the statements
therein, in light of the circumstances under which they are made, not misleading
or necessary to correct any statement in any earlier communication with respect
to the solicitation of proxies for the Shareholders Meeting which has become
false or misleading. The Schedule 14D-9, the Information Statement and the Proxy
Statement will comply as to form in all material respects with the requirements
of the Exchange Act, except that no representation or warranty is made by the
Company with respect to statements made or incorporated by reference therein
based on information supplied by Parent or Sub specifically for inclusion or
incorporation by reference therein.

         Section 4.9. Compliance with Laws. Except as set forth in the Company
SEC Documents, the business and operations of the Company and each of its
Subsidiaries have been operated in compliance with all Laws applicable thereto,
except for any instances of non-compliance which, individually or in the
aggregate, have not had and would not be reasonably likely in the future to have
a Materially Adverse Effect on the Company.

         Section 4.10. Permits. (i) The Company and its Subsidiaries have all
material permits, certificates, licenses, approvals and other authorizations
required in connection with the operation of their respective businesses
(collectively, "Company Permits"), (ii) neither the Company nor any of its
Subsidiaries is in violation in any material respect of any Company Permit and
(iii) no proceedings are pending or, to the knowledge of the Company,
threatened, to revoke or limit any Company Permit.

         Section 4.11. Contracts. Except as set forth in Item 4.11 of the
Company Letter, neither the Company nor any of its Subsidiaries is a party or is
subject to any note, bond, mortgage, indenture, contract, lease, license,
agreement or instrument that is required to be described in or filed as an
exhibit to any Company SEC Document (collectively, the "Company Material
Contracts") which is not so described in or filed as required by the Securities
Act or the Exchange Act. All such Company Material Contracts are valid and
binding and are in full force and effect and enforceable against the Company or
such Subsidiary and, to the knowledge of the Company, against the other parties
thereto in accordance with their respective terms, except to the extent that
enforceability thereof may be limited by applicable bankruptcy, insolvency,
reorganization or other similar laws affecting the enforcement of creditors'
rights generally and by principles of equity regarding the availability of
remedies. Neither the Company nor any of its Subsidiaries is in violation or
breach of or default under any such Company Material Contract.

         Section 4.12. Taxes and Tax Returns. Except as set forth in Item 4.12
of the Company Letter:


                                       12
<PAGE>   17
         (a) The Company and each of its Subsidiaries and any consolidated,
combined, unitary or aggregate group for tax purposes of which the Company or
any of its Subsidiaries is or has been a member has timely filed, or caused to
be timely filed all Tax Returns required to be filed by it, and has paid,
collected or withheld, or caused to be paid, collected or withheld, all Taxes
required to be paid, collected or withheld, other than such Taxes for which
adequate reserves in the Company's financial statements have been established in
accordance with generally accepted accounting principles, consistently applied,
or which are being contested in good faith. All such Tax Returns were true,
correct and complete in all material respects. None of the Tax Returns contains
any position which is or would be subject to penalties under Section 6662 of the
Code (or any corresponding provision of state, local or foreign Tax law). There
are no claims or assessments pending against the Company or any of its
Subsidiaries for any alleged deficiency in any Tax, and the Company has not been
notified in writing of any proposed Tax claims or assessments against the
Company or any of its Subsidiaries (other than in each case, claims or
assessments for which adequate reserves in the Company's financial statements
have been established or which are being contested in good faith or are
immaterial in amount). Neither the Company nor any of its Subsidiaries has any
waivers or extensions of any applicable statute of limitations to assess any
Taxes. There are no outstanding requests by the Company or any of its
Subsidiaries for any extension of time within which to file any Tax Return or
within which to pay any material amounts of Taxes shown to be due on any return.
No claim has been made in writing to the Company or to any of its Subsidiaries
in the past three years by an authority in a jurisdiction where the Company or
its Subsidiaries do not file Tax Returns that it is or may be subject to
taxation by that jurisdiction, nor is there any meritorious basis for an
investigation or other proceeding that would result in such an assessment. To
the best knowledge of the Company, there are no liens for Taxes on the assets of
the Company or any of its Subsidiaries except for statutory liens for current
Taxes not yet due and payable.

         (b) Section 4.12 of the Company Letter sets forth (1) the taxable years
of the Company and its Subsidiaries as to which the respective statutes of
limitations have not expired, and (2) with respect to such years, sets forth
those years for which examinations have been completed, those years for which
examinations are presently being conducted, those years for which examinations
have not been initiated, and those years for which Tax Returns have not yet been
filed.

         (c) All material elections with respect to Tax affecting the Company as
of the date hereof are set forth in Section 4.12(c) of the Company Letter.

         (d) Neither the Company nor any of its Subsidiaries has filed a consent
under Section 341(f) of the Code concerning collapsible corporations. Neither
the Company nor any of its Subsidiaries has made any payments, or is obligated
to make any payments, or is a party to any agreement that under certain
circumstances could obligate it to make any payments that will not be deductible
under Sections 162(m) or 280G of the Code or any similar provision of foreign,
state or local law. Neither the Company nor any of its Subsidiaries is a party
to or bound by any tax indemnity, tax sharing or tax allocation agreement or
arrangement. Except for the group of which the Company is presently the common
parent, neither the Company nor any of its Subsidiaries has ever been a member
of an affiliated group of corporations, within the meaning of Section 1504 of
the Code.


                                       13
<PAGE>   18
         (e) Neither the Company nor any of its Subsidiaries has (i) a material
amount of income reportable for a period ending after the Effective Time, but
attributable to a transaction (e.g., an installment sale) occurring in or a
change in accounting method made for a period ending on or prior to the
Effective Time which resulted in a deferred reporting of income from such
transaction or from such change in accounting method (other than a deferred
intercompany transaction); or (ii) deferred gain or loss arising out of any
deferred intercompany transaction. Neither the Company nor any of its
Subsidiaries has any excess loss account (as defined in Treasury Regulation
Section 1.1502-19) with respect to the stock of any of its Subsidiaries. No
"ownership change" (within the meaning of Section 382(g) of the Code) has, to
the Company's knowledge, occurred prior to the date hereof which currently
limits the Company's ability to utilize any net operating loss carryovers under
Section 382 of the Code.

         (f) For purposes of this Agreement, the term "Tax" shall mean any
federal, state, local, foreign or provincial income, gross receipts, property,
sales, use, license, excise, franchise, employment, payroll, alternative or
added minimum, ad valorem, transfer or excise tax, or any other tax, custom,
duty, governmental fee or other like assessment or charge of any kind
whatsoever, together with any interest or penalty imposed by any Governmental
Entity. The term "Tax Return" shall mean a report, return or other information
(including any attached schedules or any amendments to such report, return or
other information) required to be supplied to or filed with a Governmental
Entity with respect to any Tax, including an information return, claim for
refund, amended return or declaration or estimated Tax.

         Section 4.13. Litigation and Liabilities. Except as disclosed in the
Company SEC Documents and except as set forth in Item 4.13 of the Company Letter
or otherwise disclosed in writing to Parent, (a) there is no suit, action,
arbitration, investigation, claim, proceeding or audit ("Litigation") pending
or, to the best knowledge of the Company, threatened against the Company or any
of its Subsidiaries, nor is there any judgment, decree, writ, award, injunction,
rule or order of any Governmental Entity outstanding against the Company or any
of its Subsidiaries that are reasonably likely, individually or in the
aggregate, to have a Materially Adverse Effect; (b) there are no obligations or
liabilities, contingent, absolute, determined, determinable or otherwise,
including, without limitation, those relating to environmental and occupational
safety and health matters, that are reasonably likely, individually or in the
aggregate, to have a Materially Adverse Effect and (c) as of the date hereof, no
facts are known to the executive officers or directors of the Company on the
date hereof that could reasonably be expected to form the basis for valid claims
as to which rights to indemnification and advancement of expenses to the
executive officers or directors of the Company or any Subsidiary would be
applicable.

         Section 4.14. Employee Benefit Plans.

         (a) As used in this Agreement, "Benefit Plan" shall mean any employee
benefit plan, including, without limitation, (i) any employee benefit plan as
defined in Section 3(3) of the Employee Retirement Income Security Act of 1974,
as amended, together with all regulations thereunder ("ERISA") maintained or
contributed to by the Company or any Subsidiary during the three-year period
preceding the date hereof, whether or not such plan is subject to any or all of
ERISA's provisions, and (ii) whether or not described in the preceding clause,
any pension, profit sharing, severance, employment, change-in-control, bonus,
stock


                                       14
<PAGE>   19
bonus, deferred or supplemental compensation, retiree medical or life insurance,
death benefit or insurance, retirement, thrift, stock purchase or stock option
plan or any other compensation, welfare, fringe benefit, perquisite or
retirement plan, or other material program, policy or arrangement of any kind or
nature whatsoever, whether oral or written, maintained or contributed to by the
Company or any of the Subsidiaries or otherwise providing for compensation,
benefits for or the welfare of any or all of the current or former employees,
directors, consultants or agents of the Company or any of its Subsidiaries or
their beneficiaries or dependents. Except as set forth in Item 4.14 of the
Company Letter, neither the Company nor any of its Subsidiaries contributes to
or has at any time during the six-year period preceding the date of this
Agreement contributed to, or has any outstanding liability with respect to, any
Multiemployer Plan as defined in Section 3(37) of ERISA.

         (b) Except as set forth in Item 4.14 of the Company Letter and except
for such instances of non-compliance with ERISA and the regulations promulgated
thereunder that, individually or in the aggregate, have not had and would not be
reasonably likely in the future to have a Materially Adverse Effect on the
Company: (i) each Benefit Plan has been established and administered in
accordance with its terms and in compliance with applicable provisions of ERISA,
the Code and all other applicable laws, rules and regulations; (ii) the Company
has received no notice from any Governmental Entity questioning or challenging
such compliance; (iii) each Benefit Plan which is intended to be tax-qualified
under Code Sections 401(a) and (k) (as applicable) is so qualified in form and
operation and has received a favorable determination letter as to its
qualification, and nothing has occurred, whether by action or failure to act,
that would cause the loss of such qualification; (iv) no event has occurred and
no condition exists with respect to a Benefit Plan or other plan (whether or not
covering employees of the Company or any of its Subsidiaries) that would subject
the Company or any of its Subsidiaries, either directly or by reason of their
affiliation with an ERISA Affiliate (as hereinafter defined) to any material
tax, fine, lien or penalty imposed by ERISA, the Code or other applicable laws,
rules and regulations; (v) for each Benefit Plan with respect to which a Form
5500 has been filed, no material change has occurred with respect to the matters
covered by the most recent Form 5500 since the date thereof; (vi) no "reportable
event" (as such term is defined in ERISA Section 4043) other than any event with
respect to which reporting is waived pursuant to the regulations under ERISA
Section 4043, "prohibited transactions" (as such term is defined in ERISA
Section 406 and Code Section 4975), "accumulated funding deficiency" (as such
term is defined in ERISA Section 302 and Code Section 412 (whether or not
waived)) or failure to make by its due date a required installment under Code
Section 412(m) has occurred with respect to any Benefit Plan, or any other plan
maintained for employees of any ERISA Affiliate of the Company or any of its
Subsidiaries. "ERISA Affiliate," as applied to any Person, means (i) any
corporation which is a member of a controlled group of corporations (within the
meaning of Code Section 414(b)) of which that Person is a member, (ii) any trade
or business (whether or not incorporated) which is a member of a group of trades
or businesses under common control (within the meaning of Code Section 414(c))
of which that Person is a member and (iii) any member of an affiliated service
group (within the meaning of Code Section 414(m) and (o)) of which that Person,
any corporation described in clause (i) above or any trade or business described
in clause (ii) above is a member.

         (c) With respect to any Benefit Plan, (i) no actions, suits or claims
(other than routine claims for benefits in the ordinary course) are pending or,
to the knowledge of the


                                       15
<PAGE>   20
Company, threatened and (ii) no facts or circumstances exist, to the knowledge
of the Company, that could reasonably be expected to give rise to any such
actions, suits or claims.

         (d) Except as set forth in Item 4.14 of the Company Letter, no Benefit
Plan exists that could result in the payment to any present or former employee,
director, consultant or agent of the Company or any of its Subsidiaries of any
money or other property, or accelerate or provide any other rights or benefits,
to any such Person as a result of the transactions contemplated by this
Agreement, whether or not such payment would constitute a parachute payment
within the meaning of Code Section 280G, and no payment in respect of a Benefit
Plan would constitute an excess parachute payment under Code Section 280G.

         (e) With respect to each Benefit Plan, the Company has made available
to Parent a true and correct copy of (i) the Benefit Plans and all amendments
thereto, (ii) the most recent annual report on Form 5500 filed with the IRS,
(iii) each trust agreement and group annuity contract, if any, and all
amendments thereto relating to such Benefit Plan, (iv) the most recent actuarial
report or valuation relating to any such Benefit Plan subject to Title IV of
ERISA, (v) the most recent IRS determination letter with respect to any such
Benefit Plan which is intended to be "qualified" within the meaning of Section
401(a) of the Code and (vi) the most recent summary plan descriptions.

         (f) As of the date hereof, all material payments required to be made by
or under any Benefit Plan, any related trusts, or any related collective
bargaining agreement have been made or are being processed in accordance with
normal operating procedures, and except as set forth in the Company's financial
statements, all material amounts required to be reflected thereon have been
properly accrued to date as liabilities under or with respect to each Benefit
Plan for the current year.

         (g) Except as identified in Item 4.14 of the Company Letter, no Benefit
Plan is or has ever been subject to Title IV of ERISA.

         (h) Except as identified in Item 4.14 of the Company Letter, neither
the Company nor any of its Subsidiaries has any post-retirement or similar
obligations under any employee welfare benefit plan (as such term is defined in
Section 3(1) of ERISA) or otherwise to provide health or death benefits to or in
respect of current or former employees, directors, agents or consultants, except
as specifically required by the continuation requirements of Part 6 of Title I
of ERISA.

         Section 4.15. Environmental Matters.

         (a) Except as set forth in Item 4.15 of the Company Letter and except
as, individually or in the aggregate, have not had and are not reasonably likely
in the future to have a Materially Adverse Effect on the Company or prevent or
materially delay the consummation of the Offer or the Merger:

                  (i) the Company and its Subsidiaries are, and within the
         period of all applicable statutes of limitation have been, in material
         compliance with all Environmental Laws (as hereinafter defined);


                                       16
<PAGE>   21
                  (ii) the Company and its Subsidiaries hold all Environmental
         Permits (as hereinafter defined) (each of which is in full force and
         effect) required for any of their current operations and for any
         property owned, leased, or otherwise operated by any of them
         (collectively, the "Premises"), and are, and within the period of all
         applicable statutes of limitation have been, in material compliance
         with the terms of all such Environmental Permits. No event has occurred
         which, with the passage of time or the giving of notice or both, would
         constitute material non-compliance with Environmental Laws;

                  (iii) no review by, or approval of, any Governmental Entity or
         other Person is required under any Environmental Law in connection with
         the execution or delivery of this Agreement or the transfer of title to
         the Premises, if any, contemplated in connection therewith;

                  (iv) neither the Company nor any of its Subsidiaries has
         received any written notice of an Environmental Claim (as hereinafter
         defined) that remains unresolved and, to the knowledge of the Company,
         no such Environmental Claims are currently pending or threatened;

                  (v) to the knowledge of the Company neither the Company nor
         any of its Subsidiaries has reason to believe that any Hazardous
         Materials presently on the Premises or on any other property are
         reasonably likely to form the basis of any Environmental Claim against
         any of them; and

                  (vi) the Company is involved in various environmental,
         contractual, warranty and public liability cases and claims that are
         considered routine to the Company's business and, in the opinion of the
         Company's management, the potential financial impact of these matters
         is not material to the business, properties, assets, prospects,
         operations or condition (financial or otherwise) of the Company and its
         Subsidiaries.

         (b) For purposes of this Agreement, the terms below shall have the
following meanings:

         "Environmental Claim" means any claim, demand, action, suit, complaint,
proceeding, directive, investigation, lien, demand letter, or notice of alleged
noncompliance, violation or liability, by any Person or entity asserting
liability or potential liability (including without limitation, liability or
potential liability for enforcement, investigatory costs, remediation costs,
operation and maintenance costs, governmental response costs, natural resource
damages, property damage, personal injury, fines or penalties), regardless of
legal theory, arising out of, based on or resulting from (i) the presence,
discharge, emission, release or threatened release of any Hazardous Materials at
any location including, without limitation, the Premises, or (ii) the condition
of the Premises or the present use thereof, or (iii) otherwise relating to
obligations or liabilities under any Environmental Law.

         "Environmental Laws" means any and all laws, rules, orders,
regulations, statutes, ordinances, guidelines, codes, decrees or other legally
enforceable requirement (including,


                                       17
<PAGE>   22
without limitation, common law) of any foreign government, the United States or
any Governmental Entity regulating, relating to or imposing liability or
standards of conduct concerning protection of human health or the environment,
including, without limitation, ambient air, surface waters, ground waters,
lands, sub-surface strata, biota and cultural properties.

         "Environmental Permit" means all permits, licenses, registrations,
approvals, exemptions and other filings with or authorizations by any
Governmental Entity under any Environmental Law.

         "Hazardous Materials" means all hazardous or toxic substances, wastes,
materials or chemicals, petroleum (including crude oil or any fraction thereof),
petroleum products, asbestos, asbestos-containing materials, pollutants and
contaminants that are regulated pursuant to any Environmental Laws.

         Section 4.16. Charter Provisions. The actions of the Board of Directors
of the Company previously taken and/or taken in approving the Offer (including
the purchase of Shares pursuant to the Offer), the Merger, this Agreement, the
Shareholders Agreement and the transactions contemplated by this Agreement and
the Shareholders Agreement, are sufficient to render irrevocably inapplicable
(i) Article VII of the Company's Articles of Incorporation and (ii) any state
anti-takeover law to (A) the Offer, the Merger, this Agreement and the
Shareholders Agreement, (B) the transactions contemplated by this Agreement
and/or the Shareholders Agreement and (C) any other transaction between Parent
and any of its Affiliates on the one hand, and the Company and any of its
Affiliates, on the other hand, consummated after the date that Sub acquires
Shares pursuant to the Offer. Pursuant to the Company's Articles of
Incorporation, Section 2538(a) and Subchapters E, F, G and H of Chapter 25 of
the PBCL are not applicable to the Company.

         Section 4.17. Intellectual Property. Except as set forth in Item 4.17
of the Company Letter, with respect to all patents, trademarks, trade names,
service marks, copyrights and any applications therefor, technology, know-how,
trade secrets, computer software programs or applications, trade names and
tangible or intangible proprietary information or materials that are used in the
respective businesses of the Company and its Subsidiaries as currently
conducted, the Company has no knowledge (a) that such use violates the rights of
any third Person or (b) of any pending or threatened litigation involving such
use, which violation or litigation in the aggregate has or could be reasonably
expected to have a Materially Adverse Effect on the Company.

         Section 4.18. Labor Relations. No representation election, arbitration
proceeding, grievance (other than with respect to incidents in the ordinary
course of business), labor strike, dispute (other than with respect to incidents
in the ordinary course of business), slowdown, stoppage or other labor trouble
is pending or, to the knowledge of the Company, threatened against the Company
or any of its Subsidiaries. No complaint against the Company or any of its
Subsidiaries is pending or, to the knowledge of the Company, threatened before
the National Labor Relations Board, the Equal Employment Opportunity Commission
or any similar foreign, state or local agency, by or on behalf of any employee
of the Company or any of its Subsidiaries. The Company and each of its
Subsidiaries is in compliance in all material respects


                                       18
<PAGE>   23
with all laws and regulations governing workplace safety, terms and conditions
of employment, payment of wages and overtime, employment of non-citizens,
discrimination in the workplace, and other employment and labor laws. Neither
the Company nor any of its Subsidiaries has engaged in any unfair labor
practice.

         Section 4.19. Insurance. All insurance policies carried by, or
covering, the Company and its Subsidiaries with respect to their businesses,
assets and properties are, in respect of the risks insured against and the
amount of coverage provided, consistent with insurance policies customarily
carried by Persons similarly situated who engage in businesses similar to the
businesses of the Company and its Subsidiaries. All such insurance policies are
in full force and effect, and no notice of cancellation has been given with
respect to any such policy. All premiums due on such policies have been paid in
a timely manner and the Company and its Subsidiaries have complied in all
material respects with the terms and provisions of such policies.

         Section 4.20. Finders and Investment Bankers. Neither the Company nor
any of its officers or directors has employed any broker, finder or financial
advisor or otherwise incurred any liability for any brokerage fees, commissions
or financial advisors' or finders' fees in connection with the transactions
contemplated hereby, other than pursuant to an agreement or agreements with BT
Alex. Brown and Warburg Dillon Read, copies of which has been provided to
Parent.

         Section 4.21. Contracts; Indebtedness. Except as disclosed in the
Company SEC Documents or as listed under Item 4.21 or other Items of the Company
Letter, (a) there are no contracts or agreements that are material to the
business, properties, assets, financial condition or results of operations of
the Company and its Subsidiaries taken as a whole, and (b) neither the Company
nor any of its Subsidiaries is in violation of or in default under (nor does
there exist any condition which upon the passage of time or the giving of notice
would cause such a violation of or default under) any loan or credit agreement,
note, bond, mortgage, indenture, lease, permit, concession, franchise, license
or any other contract, agreement, arrangement or understanding, to which it is a
party or by which it or any of its properties or assets is bound, except for
violations or defaults that could not reasonably be expected to result in a
Materially Adverse Effect on the Company.

          ARTICLE V - REPRESENTATIONS AND WARRANTIES OF PARENT AND SUB

         Parent and Sub represent and warrant to the Company as follows:

         Section 5.1. Organization. Each of Parent and Sub is a corporation duly
organized, validly existing and in good standing under the laws of the
jurisdiction of its incorporation and has requisite corporate power and
authority to carry on its business as now being conducted.

         Section 5.2. Authority. Parent and Sub have the requisite corporate
power and authority to execute and deliver this Agreement and to consummate the
transactions contemplated hereby. The execution, delivery and performance of
this Agreement by Parent and Sub, and the consummation by Parent and Sub of the
Merger and of the other transactions


                                       19
<PAGE>   24
contemplated hereby have been duly authorized by all necessary corporate action
on the part of Parent and Sub, and no other corporate proceedings on the part of
Parent or Sub or their respective Boards of Directors are necessary to authorize
or approve this Agreement or to consummate the transactions contemplated hereby.
This Agreement has been duly and validly executed and delivered by the Parent
and Sub and constitutes the legal, valid and binding agreement of the Parent and
Sub, enforceable against the Parent and Sub in accordance with its terms, except
to the extent that enforceability hereof may be limited by applicable
bankruptcy, insolvency, reorganization or other similar laws affecting the
enforcement of creditors' rights generally and by principles of equity regarding
the availability of remedies.

         Section 5.3. Consents and Approvals; No Violations. Except as set forth
in Item 5.3 of the Parent Letter, except for filings, permits, authorizations,
consents and approvals as may be required under, and other applicable
requirements of, the Exchange Act, the HSR Act, the PBCL, state takeover laws
and foreign and supranational laws relating to antitrust and anticompetition
clearances, neither the execution, delivery or performance of this Agreement by
Parent and Sub nor the consummation by Parent and Sub of the transactions
contemplated hereby will (i) conflict with or result in any breach of any
provision of the respective Articles of Incorporation or By-laws of Parent and
Sub, (ii) require any filing with, or permit, authorization, consent or approval
of, any Governmental Entity, (iii) result in a violation or breach of, or
constitute (with or without due notice or lapse of time or both) a default (or
give rise to any right of termination, amendment, cancellation or acceleration)
under, any of the terms, conditions or provisions of any note, bond, mortgage,
indenture, license, lease, contract, agreement or other instrument or obligation
to which Parent or any of its Subsidiaries is a party or by which any of them or
any of their properties or assets may be bound or (iv) violate any order, writ,
injunction, decree, statute, rule or regulation applicable to Parent, any of its
Subsidiaries or any of their properties or assets.

         Section 5.4. Information Supplied. None of the information supplied or
to be supplied by Parent or Sub specifically for inclusion or incorporation by
reference in (i) the Offer Documents, (ii) the Schedule 14D-9, (iii) the
Information Statement or (iv) the Proxy Statement will, in the case of the Offer
Documents, the Schedule 14D-9 and the Information Statement, at the respective
times the Offer Documents, the Schedule 14D-9 and the Information Statement are
filed with the SEC or first published, sent or given to the Company's
shareholders, or, in the case of the Proxy Statement, at the time the Proxy
Statement is first mailed to the Company's shareholders or at the time of the
Shareholders Meeting, contain any untrue statement of a material fact or omit to
state any material fact required to be stated therein or necessary in order to
make the statements therein, in light of the circumstances under which they are
made, not misleading or necessary to correct any statement in any earlier
communication with respect to the solicitation of proxies for the Shareholders
Meeting which has become false or misleading, except that no representation or
warranty is made by Parent or Sub in connection with any of the foregoing with
respect to statements made or incorporated by reference therein based on
information supplied by the Company or any of its representatives specifically
for inclusion or incorporation by reference therein. The Offer Documents will
comply as to form in all material respects with the requirements of the Exchange
Act and the rules and regulations thereunder, except that no representation or
warranty is made by Parent or Sub in connection with any of the foregoing with
respect to statements made or incorporated by reference therein based on


                                       20
<PAGE>   25
information supplied by the Company or any of its representatives specifically
for inclusion or incorporation by reference therein.

         Section 5.5. Interim Operations of Sub. Sub was formed solely for the
purpose of engaging in the transactions contemplated hereby, has engaged in no
other business activities and has conducted its operations only as contemplated
hereby.

         Section 5.6. Finders and Investment Bankers. Neither Parent nor Sub nor
any of their respective officers or directors has employed any broker, finder or
financial advisor or otherwise incurred any liability for any brokerage fees,
commissions or financial advisors' or finders' fees in connection with the
transactions contemplated hereby, other than pursuant to an agreement with
Lehman Brothers.

         Section 5.7. Financing. Parent has or will have, and shall provide Sub
with, the funds necessary to consummate the Offer and the Merger and the
transactions contemplated hereby in accordance with the terms hereof.

             ARTICLE VI - COVENANTS RELATING TO CONDUCT OF BUSINESS

         Section 6.1. Conduct of Business by the Company Pending the Merger.
During the period from the date of this Agreement until the earlier of the
Effective Time or such time as Parent's and Sub's designees shall constitute a
majority of the Board of Directors of the Company, the Company shall, and shall
cause each of its Subsidiaries to, in all material respects, except as
contemplated by this Agreement, carry on its business in the ordinary course as
currently conducted and, to the extent consistent therewith, with no less
diligence and effort than would be applied in the absence of this Agreement,
seek to preserve intact their current business organizations, keep available the
services of their current officers and employees and preserve their
relationships with customers, suppliers and others having business dealings with
them to the end that goodwill and ongoing businesses shall be unimpaired at the
Effective Time. Without limiting the generality of the foregoing, and except as
otherwise contemplated by this Agreement, during such period, the Company shall
not, and shall not permit any of its Subsidiaries to, without the prior written
consent of Parent (which consent shall not be unreasonably withheld or delayed):

         (a) amend or propose to amend its Articles of Incorporation or By-laws
(or comparable governing instruments) or change the number of directors
constituting the entire Board of Directors of the Company or any of its
Subsidiaries;

         (b) authorize for issuance, issue, deliver, grant, sell, pledge, or
otherwise dispose of or propose to issue, deliver, grant, sell, pledge or
otherwise dispose of any shares of, or any options, warrants, commitments,
subscriptions or rights of any kind to acquire or sell any shares of, the
capital stock or other securities of the Company or any of its Subsidiaries
including, but not limited to, stock appreciation rights, phantom stock, any
securities convertible into or exchangeable for shares of stock of any class of
the Company or any of its Subsidiaries; provided, however, that the foregoing
shall not prohibit the issuance of Shares upon the exercise of Company Options
granted prior to the date of this Agreement;


                                       21
<PAGE>   26
         (c) split, combine or reclassify any shares of its capital stock or
declare, pay or set aside any dividend or other distribution (whether in cash,
stock, securities or other property or any combination thereof) in respect of
its capital stock, or directly or indirectly redeem, purchase or otherwise
acquire or offer to acquire, directly or indirectly, any shares of its capital
stock or other securities;

         (d) (i) except in the ordinary course of business consistent with past
practice (1) assume, guarantee, endorse or otherwise become liable or
responsible (whether directly, indirectly, continently or otherwise) for the
obligations of any Person or (2) make any loans, advances or capital
contributions to, or investments in, any other Person (other than to one of its
Subsidiaries); (ii) acquire the stock or the assets of, or merge or consolidate
with, any other Person; (iii) voluntarily incur any liability or obligation
(absolute, accrued, contingent or otherwise) other than in the ordinary course
of business consistent with past practice; or (iv) sell, transfer, mortgage,
pledge or otherwise dispose of, or encumber, or agree to sell, transfer,
mortgage, pledge or otherwise dispose of or encumber, any assets or properties,
real, personal or mixed of the Company and its Subsidiaries other than sales of
products in the ordinary course of business and in a manner consistent with past
practice; (v) incur any indebtedness for borrowed money or issue any debt
securities or assume, guarantee or endorse, or otherwise as an accommodation
become responsible for, the obligations of any Person, or make any loans,
advances or capital contributions to, or investments in, any other Person (other
than in the ordinary course of business consistent with past practice); (vi)
enter into any contract or agreement, other than in the ordinary course of
business consistent with past practice, or amend, alter or terminate any Company
Material Contract; or (vii) authorize any capital expenditure except in
compliance with procedures heretofore established by resolutions duly adopted by
the Board of Directors of the Company;

         (e) increase in any manner the compensation of any of its directors,
officers or employees (other than in the ordinary course of business consistent
with past practice) or enter into, establish, amend or terminate any Benefit
Plan, employment, consulting, retention, change in control, collective
bargaining, bonus or other incentive compensation, profit sharing, health or
other welfare, stock option or other equity, pension, retirement, vacation,
severance, deferred compensation or other compensation or benefit plan, policy,
agreement, trust, fund or arrangement with, for or in respect of, any
shareholder, officer, director, other employee, agent, consultant or Affiliate
other than as required pursuant to the terms of agreements in effect on the date
of this Agreement and set forth in Item 6.1 of the Company Letter;

         (f) except as may be required as a result of a change in Law or in
generally accepted accounting principles, change any of the accounting practices
or principles used by it;

         (g) make any material Tax election, settle or compromise any material
federal, state, local or foreign Tax liability, or waive any statute of
limitations for any Tax claim or assessment;

         (h) settle or compromise any material pending or threatened suit,
action or claim;


                                       22
<PAGE>   27
         (i) adopt a plan of complete or partial liquidation, dissolution,
merger, consolidation, restructuring, recapitalization or other reorganization
of the Company or any of its Subsidiaries (other than the Merger);

         (j) pay, discharge or satisfy any claims, liabilities or obligations
(absolute, accrued, asserted or unasserted, contingent or otherwise), other than
the payment, discharge or satisfaction (i) in the ordinary course of business
and consistent with past practice of liabilities reflected or reserved against
in the financial statements of the Company or incurred in the ordinary course of
business and consistent with past practice and (ii) of liabilities required to
be paid, discharged or satisfied pursuant to the terms of any contract in
existence on the date hereof or entered into in accordance with this Section
6.1;

         (k) permit any insurance policy naming the Company or any of its
Subsidiaries as a beneficiary or a loss payable payee to be cancelled or
terminated without notice to Parent, except in the ordinary course of business
and consistent with past practice; or

         (l) take, or offer or propose to take, or agree to take, in writing or
otherwise, any of the actions described in this Section 6.1 or take or omit to
take any action which would make any of the representations or warranties of the
Company contained in this Agreement untrue and incorrect in any material respect
as of the date when made if such action had then been taken or omitted, or would
result in any of the Offer Conditions or the conditions set forth in Article
VIII hereof not being satisfied.

         The Company shall, and the Company shall cause each of its Subsidiaries
to, use its or their best efforts to comply in all material respects with all
Laws applicable to it or any of its properties, assets or business and maintain
in full force and effect all the Company Permits necessary for such business.

         Section 6.2. No Solicitation.

         (a) The Company shall not, nor shall it permit any of its Subsidiaries
to, nor shall it permit any of its executive officers, directors, authorized
representatives or authorized agents to, directly or indirectly, (i) solicit,
initiate or knowingly encourage (including by way of furnishing non-public
information) any inquiries or the making of any proposal which constitutes, or
may reasonably be expected to lead to, any Takeover Proposal or (ii), except as
expressly permitted pursuant to paragraph (b) of this Section 6.2, participate
in any discussions or negotiations regarding any Takeover Proposal. For purposes
of this Agreement, "Takeover Proposal" means (x) any inquiry, proposal or offer
from any Person relating to any direct or indirect acquisition or purchase of
any of the assets of the Company or its Subsidiaries (other than the purchase of
inventory or other assets in the ordinary course of business) or any of the
Shares then outstanding, any tender offer or exchange offer for any of the
Shares then outstanding, or any merger, consolidation, business combination,
recapitalization, liquidation, dissolution or similar transaction involving the
Company or any of its Subsidiaries, other than the transactions contemplated by
this Agreement or (y) any other transaction the consummation of which could
reasonably be expected to impede, interfere with, prevent or delay the Offer
and/or the Merger or which would reasonably be expected to dilute the benefits
to Parent of the transactions contemplated by this Agreement and the
Shareholders Agreement.


                                       23
<PAGE>   28
         (b) Neither the Unaffiliated Directors nor any committee designated
thereby shall withdraw or modify, or propose publicly to (i) withdraw or modify,
in a manner adverse to Parent, the approval or recommendation by Unaffiliated
Directors or such committee of the Offer, the Merger or this Agreement (or any
transaction contemplated thereby); provided that, the Unaffiliated Directors
may, (A) in response to any Takeover Proposal, suspend such recommendation for a
period of up to 24 hours pending the analysis by the Unaffiliated Directors of
such Takeover Proposal, which analysis may include to the extent necessary
discussions with a Person making such Takeover Proposal regarding same, or (B)
at any time prior to the consummation of the Offer, modify or withdraw such
recommendation, but only if the Unaffiliated Directors determine in good faith,
based on a written opinion of Drinker Biddle & Reath LLP (a "Written Opinion"),
that it would be a breach of its fiduciary duties not to so modify or withdraw
such recommendation, (ii) approve or recommend, or propose publicly to approve
or recommend, any Takeover Proposal or (iii) cause the Company to enter into any
letter of intent, agreement in principle, acquisition agreement or other similar
agreement (each, an "Acquisition Agreement") related to any Takeover Proposal.

         (c) In addition to the obligations of the Company contained in
paragraphs (a) and (b) of this Section 6.2, the Company shall immediately advise
Parent orally and in writing of any request for information or of any Takeover
Proposal, the material terms and conditions of such request or Takeover Proposal
and the identity of the Person making such request or Takeover Proposal.

         (d) Subject to Section 6.2(e), nothing contained in this Section 6.2
shall prohibit the Company from taking and disclosing to its shareholders a
position contemplated by Rules 14d-9 and 14e-2 promulgated under the Exchange
Act or from making any disclosure to the Company's shareholders if, in the good
faith judgment of the Board of Directors of the Company, based on a Written
Opinion, such disclosure is required under applicable law.

         (e) If Sub purchases Shares pursuant to the Offer, the Company and its
Board of Directors shall take all actions legally permitted to permit the Merger
to occur.

         Section 6.3. Disclosure to Parent; Delivery of Certain Filings. The
Company shall promptly advise Parent orally and in writing if there occurs, to
the knowledge of the Company, any change or event which results in the executive
officers of the Company having a good faith belief that such change or event has
resulted in or is reasonably likely to result in a Materially Adverse Effect on
the Company or that such change or event could materially delay the consummation
of the Offer and/or the Merger. The Company shall provide to Parent, and Parent
shall provide to the Company, copies of all filings made by the Company or
Parent, as the case may be, with any Governmental Entity in connection with this
Agreement and the transactions contemplated hereby.

                      ARTICLE VII - ADDITIONAL AGREEMENTS

         Section 7.1. Shareholder Approval; Preparation of Proxy Statement.

         (a) If the approval of the Company's shareholders of this Agreement and
the Merger is required by law, the Company shall, at Parent's request, as soon
as practicable


                                       24
<PAGE>   29
following the expiration of the Offer in accordance with the terms of Section
1.1 of this Agreement, so long as permitted by law, duly call, give notice of,
convene and hold a meeting of its shareholders (the "Shareholders Meeting") for
the purpose of obtaining such approval. The Company shall, through its Board of
Directors (but subject to the right of the Company's Board of Directors to
withdraw or modify its approval or recommendation of the Offer, the Merger and
this Agreement as set forth in Section 6.2(b)), recommend to its shareholders
that the shareholders approve the Merger. Notwithstanding the foregoing, if Sub
or any other Subsidiary of Parent shall acquire 80% or more of the then
outstanding Shares, the parties shall, at the request of Parent, take all
necessary and appropriate actions to cause the Merger, pursuant to the terms
thereof, to become effective in accordance with Section 1924(b)(1)(ii) of the
PBCL, as promptly as practicable after such acquisition without a meeting of the
Shareholders of the Company, including, without limitation, adoption by the
board of directors of Sub of a short-form plan of merger in accordance with the
PBCL and consistent with the terms of the Merger.

         (b) If the approval of the Company's shareholders of this Agreement and
the Merger is required by law, the Company shall, at Parent's request, as soon
as practicable following the expiration of the Offer in accordance with the
terms of Section 1.1, and to the extent permitted by law, prepare and file a
preliminary Proxy Statement with the SEC and shall use all reasonable efforts to
respond to any comments of the SEC or its staff, and, to the extent permitted by
law, to cause the Proxy Statement to be mailed to the Company's shareholders as
promptly as practicable after responding to all such comments to the
satisfaction of the staff. The Company shall notify Parent promptly of the
receipt of any comments from the SEC or its staff and of any request by the SEC
or its staff for amendments or supplements to the Proxy Statement or for
additional information and shall supply Parent with copies of all correspondence
between the Company or any of its representatives, on the one hand, and the SEC
or its staff, on the other hand, with respect to the Proxy Statement or the
Merger. If at any time prior to the Shareholders Meeting there shall occur any
event that should be set forth in an amendment or supplement to the Proxy
Statement, the Company shall promptly prepare and mail to its shareholders such
an amendment or supplement. Parent shall cooperate with the Company in the
preparation of the Proxy Statement or any amendment or supplement thereto.
Parent and its counsel shall be given a reasonable opportunity to review and
comment upon the Proxy Statement and any such correspondence prior to its filing
with the SEC or dissemination to the Company's shareholders, and the Company
shall not so file or disseminate any Proxy Statement, or any amendment or
supplement thereto, to which Parent reasonably objects.

         (c) Parent agrees to cause all Shares purchased pursuant to the Offer
and all other Shares of the Company entitled to vote on the Merger owned by
Parent or any Subsidiary of Parent to be voted in favor of the Merger.

         Section 7.2. Access to Information. Between the date of this Agreement
and the Effective Time, the Company shall give, and shall cause its accountants
and legal counsel to give, Parent and its respective authorized representatives
(including, without limitation, its financial advisors, accountants and legal
counsel), at all reasonable times, access as reasonably requested to all
personnel, offices and other facilities and to all contracts, agreements,
commitments, books and records of or pertaining to the Company and its
Subsidiaries, shall permit the foregoing Persons to make such reasonable
inspections as they may require and, as permitted under applicable law and
subject to certain restrictions existing as of the date of this


                                       25
<PAGE>   30
Agreement that are known to all parties hereto, shall cause its officers
promptly to furnish Parent with (a) such financial and operating data and other
information with respect to the business and properties of the Company and its
Subsidiaries as Parent may from time to time reasonably request, and (b) a copy
of each report, schedule and other document filed or received by the Company or
any of its Subsidiaries pursuant to the requirements of applicable securities
laws or the NASD.

         Section 7.3. Expenses. All fees, costs and expenses incurred in
connection with this Agreement and the transactions contemplated hereby shall be
paid by the party incurring such fees, costs or expenses, whether or not the
Offer or the Merger is consummated, subject to the rights of Parent under
Section 9.2 hereof.

         Section 7.4. Public Announcements. Parent and the Company shall consult
with each other before issuing any press release or otherwise making any public
statements with respect to the transactions contemplated by this Agreement and
shall not issue any such press release or make any such public statement prior
to such consultation, except as may be required by applicable law, fiduciary
duties or by obligations pursuant to any listing agreement with or regulation of
the NASD.

         Section 7.5. State Takeover Laws. If any "fair price" or "control share
acquisition" statute or other similar statute or regulation shall become
applicable to the transactions contemplated hereby, Parent and the Company and
their respective Boards of Directors shall use all reasonable efforts to grant
or obtain such approvals and take such actions as are necessary so that the
transactions contemplated hereby may be consummated as promptly as practicable
on the terms contemplated hereby and otherwise act to minimize the effects of
any such statute or regulation on the transactions contemplated hereby.

         Section 7.6. Indemnification, Exculpation and Insurance.

         (a) All rights to indemnification and exculpation from liabilities for
acts or omissions occurring at or prior to the Effective Time existing in favor
of the current or former directors, officers or employees of the Company as
provided in the Company's Articles of Incorporation or By-laws or pursuant to
agreements existing on the date of this Agreement shall be assumed by the
Surviving Corporation, and Parent shall cause the Surviving Corporation to honor
such obligations in accordance with the terms thereof, without further action,
as of the Effective Time, and such rights shall continue in full force and
effort in accordance with their respective terms. Such rights, and the Surviving
Corporation's and Parent's related obligations, shall apply in all respects to
the current or former directors, officers and employees of each of its
Subsidiaries as though such directors, officers and employees were entitled to
indemnification rights pursuant to the Company's Articles of Incorporation or
By-laws as in effect on the date hereof or pursuant to such agreements, as the
case may be. In addition, from and after the Effective Time, directors and
officers of the Company who become or remain directors or officers of Parent
shall be entitled to the same indemnity rights and protections (including those
provided by directors' and officers' liability insurance) as are afforded to
other directors and officers of Parent. Notwithstanding any other provision
hereof, the provisions of this Section 7.6(a) are intended to be for the benefit
of, and shall be enforceable by, each indemnified party, his or her heirs and
his or her representatives and (ii) are in addition to, and not in


                                       26
<PAGE>   31
substitution for, any other rights to indemnification or contribution that any
such person may have by contract or otherwise.

         (b) Parent shall, and shall cause the Surviving Corporation or one of
its Affiliates to, maintain in effect for six years after the Effective Time
policies of directors' and officers' liability insurance equivalent in all
material respects to those maintained by or on behalf of the Company and its
Subsidiaries on the date hereof (and having coverage and containing terms and
conditions which in the aggregate are not less advantageous to the persons
currently covered by such policies as insured) with respect to claims arising
from any actual or alleged wrongful act or omission occurring at or prior to the
Effective Time for which a claim has not been made against any director or
officer of the Company or any director or officer of its Subsidiaries prior to
the Effective Time.

         Section 7.7. Notification of Certain Matters. Parent shall give prompt
notice to the Company, and the Company shall give prompt notice to Parent, of:
(i) the occurrence, or non-occurrence, in each case, to the knowledge of the
Company or Parent, as the case may be, of any event the occurrence, or
non-occurrence, of which results in the executive officers of the Company or
Parent, as the case may be, having a good faith belief that such change or event
would be reasonably likely to cause (x) any representation or warranty of such
entity contained in this Agreement that is not qualified as to materiality to be
untrue or inaccurate in any material respect, (y) any representation or warranty
of such entity contained in this Agreement that is qualified as to materiality
to be untrue or inaccurate in any respect, or (z) any covenant, condition or
agreement of such entity contained in this Agreement not to be complied with or
satisfied in all material respects; and (ii) the executive officers of the
Company or Parent, as the case may be, believing in good faith that the Company
or Parent, as the case may be, has, to the knowledge of the Company or Parent,
as the case may be, failed to comply with in all material respects or satisfy in
all material respects any covenant, condition or agreement of such entity to be
complied with or satisfied by it hereunder; provided, however, that the delivery
of any notice pursuant to this Section 7.7 shall not limit or otherwise affect
the remedies available hereunder to the party receiving such notice. Each of the
Company, Parent and Sub shall give prompt notice to the other parties hereof of
any notice or other communication from any third party alleging that the consent
of such third party is or may be required in connection with the transactions
contemplated by this Agreement.

         Section 7.8. Board of Directors. Promptly after such time as Sub
purchases Shares pursuant to the Offer (but subject to the satisfaction of the
Minimum Condition), Sub shall be entitled, to the fullest extent permitted by
law, to designate at its option up to that number of directors, rounded to the
next highest whole number, of the Company's Board of Directors, subject to
compliance with Section 14(f) of the Exchange Act, as shall make the percentage
of the Company's directors designated by Sub equal to the aggregate voting power
of the Shares held by Parent or any of its Subsidiaries; provided, however, that
in the event that Sub's designees are elected to the Board of Directors of the
Company, until the Effective Time, such Board of Directors shall have (i) at
least three Unaffiliated Directors who are directors on the date of this
Agreement or are designated by a majority of the Unaffiliated Directors of the
Company who were directors on the date hereof and (ii) the number of Affiliated
Directors required by the Standstill Agreement which shall be in addition to the
number of directors designated by Sub pursuant to this Section 7.8; and
provided, further that, in such event, if the


                                       27
<PAGE>   32
number of Unaffiliated Directors shall be reduced below three for any reason
whatsoever, the remaining Unaffiliated Directors shall, to the fullest extent
permitted by law, designate a person to fill such vacancy who shall be deemed to
be an Unaffiliated Director for purposes of this Agreement or, if no
Unaffiliated Directors then remain, the other directors shall designate three
persons to fill such vacancies who shall not be officers or Affiliates of the
Company or any of its Subsidiaries, or officers or Affiliates of Parent, of any
of its Subsidiaries or of any other entity in which Parent owns, directly or
indirectly, any material amount of capital stock or other significant ownership
interest, and such persons shall be deemed to be Unaffiliated Directors for
purposes of this Agreement.

         Following the election or appointment of Sub's designees pursuant to
this Section 7.8 and prior to the Effective Time, any termination or amendment
of this Agreement by the Company, any extension by the Company of the time for
the performance of any of the obligations or other acts of Sub or waiver or
assertion of any of the Company's rights hereunder, and any other consent or
action by the Board of Directors of the Company with respect to this Agreement
(other than recommending or reconfirming the recommendation that the holders of
the Shares approve and adopt this Agreement and the Merger, and making
determinations in connection therewith, which recommendations and determinations
may be made by a majority of the Board of Directors as constituted at any time
after such election or appointment of Sub's designees pursuant to this Section)
shall to the fullest extent permitted by applicable law require the concurrence
of a majority of the Unaffiliated Directors and, to the fullest extent permitted
by law, no other action by the Company, including any action by any other
director of the Company, shall be required to approve such actions. To the
fullest extent permitted by applicable law, the Company shall take all actions
requested by Parent which are reasonably necessary to effect the election of any
such designee, including mailing to its shareholders the Information Statement
containing the information required by Section 14(f) of the Exchange Act and
Rule 14f-1 promulgated thereunder, and the Company agrees to make such mailing
with the mailing of the Schedule 14D-9 (provided that Sub shall have provided to
the Company on a timely basis all information required to be included in the
Information Statement with respect to Sub's designees). Parent and Sub shall be
solely responsible for any information with respect to either of them and their
nominees, officers, directors and Affiliates required by Section 14(f) of the
Exchange Act and Rule 14f-1 promulgated thereunder. In connection with the
foregoing, the Company shall promptly, at the option of Parent, to the fullest
extent permitted by law, either increase the size of the Company's Board of
Directors and/or obtain the resignation of such number of its current directors
as is necessary to enable Sub's designees to be elected or appointed to the
Company's Board of Directors as provided above.

         Section 7.9. Additional Agreements.

         (a) Subject to the terms and conditions herein provided, each of the
parties hereto agrees to use all reasonable efforts to take, or cause to be
taken, all actions and to do, or cause to be done, all things necessary, proper
or advisable under applicable laws and regulations to consummate and make
effective the transactions contemplated by this Agreement, including using all
reasonable efforts to obtain all necessary waivers, consents and approvals
(including, without limitation, obtaining consents from landlords under leases
providing for various remedies in the event of a change in control of the
tenant) and effect all necessary registrations and filings. In case at any time
after the Effective Time any further action is necessary or


                                       28
<PAGE>   33
desirable to carry out the purposes of this Agreement, the proper officers
and/or directors of Parent, Sub and the Company shall take all such actions.

         (b) Each of Parent, Sub and the Company agrees to use its reasonable
best efforts promptly to take all reasonable steps to secure all clearances
under the HSR Act and under any applicable foreign laws relating to the
regulation of competition, or from federal, state or foreign governments or
governmental authorities or agencies with respect to the transactions
contemplated by this Agreement. Notwithstanding any other provision hereof, in
no event shall Parent, Sub or any of their Affiliates (collectively, the "Parent
Group") be required to take or fail to take any action in order to obtain or
grant a consent arising out of any contractual or legal obligation of or
applicable to the Company or its Subsidiaries, other than obligations such as
those under the HSR Act which apply to both the Company and the Parent Group and
then only to the extent applicable to the Parent Group, and in no event shall
any member of the Parent Group be required to enter into or offer to enter into
any divestiture, hold-separate, business limitation or similar agreement or
undertaking in connection with this Agreement or the transactions contemplated
hereby or otherwise.

         Section 7.10. Certain Litigation. The Company agrees that it shall not
settle any litigation commenced after the date hereof against the Company or any
of its directors by any shareholder of the Company relating to the Offer, the
Merger, this Agreement or the Shareholders Agreement without the prior written
consent of Parent. In addition, the Company shall not voluntarily cooperate with
any third party that may hereafter seek to restrain or prohibit or otherwise
oppose the Offer or the Merger and shall cooperate with Parent and Sub to resist
any such effort to restrain or prohibit or otherwise oppose the Offer or the
Merger.

         Section 7.11. Severance Payments. Parent hereby agrees that for a
period of one year after the consummation of the Offer, all persons who, as of
the date of this Agreement, are employees of the Company or any of its
Subsidiaries and who are involuntarily terminated by the Company or the
Surviving Corporation shall be entitled to receive severance pay and benefits
equal to the severance pay and benefits provided for in the Company's severance
pay plan, a description of which plan is set forth as Exhibit D to the Company
Letter.

                      ARTICLE VIII - CONDITIONS PRECEDENT

         Section 8.1. Conditions to Each Party's Obligation to Effect the
Merger. The respective obligations of each party to effect the Merger shall be
subject to the fulfillment at or prior to the Effective Time of the following
conditions:

         (a) Offer. Subject to the satisfaction or waiver by Sub of all of the
Offer Conditions (it being understood that pursuant to Section 1.1(a) Sub cannot
waive the Minimum Condition without the prior written consent of the Company),
Sub shall have accepted for payment all Shares validly tendered in the Offer and
not withdrawn. Neither Parent nor Sub may invoke this condition if Sub fails to
purchase Shares so tendered and not withdrawn in violation of the terms of this
Agreement or the Offer.

         (b) Shareholder Approval. If required by any applicable law or the
constituent documents of any party hereto, this Agreement and the Merger shall
have been approved at or


                                       29
<PAGE>   34
prior to the Effective Time by the requisite vote of the shareholders of the
Company in accordance with the PBCL and the Company's Articles of Incorporation
and By-laws, which the Company has represented shall be solely the affirmative
vote of a majority of the outstanding Shares.

         (c) No Injunction or Action. No order, statute, rule, regulation,
executive order, stay, decree, judgment or injunction shall have been enacted,
entered, promulgated or enforced by any court or other Governmental Entity which
temporarily, preliminarily or permanently prohibits or prevents the consummation
of the Merger which has not been vacated, dismissed or withdrawn prior to the
Effective Time.

         (d) Other Approvals. On or prior to the Effective Time, the waiting
period (and any extension thereof) applicable to the Merger under the HSR Act
and any similar foreign Laws shall have been terminated or shall have expired
and all consents necessary for the consummation of the Merger shall have been
obtained.

         Section 8.2. Conditions of Obligations of Parent and Sub. The
obligations of Parent and Sub to effect the Merger are subject to the
satisfaction of the condition (which may be waived in whole or in part by
Parent) that the Company shall have performed in all material respects all
obligations required to be performed by it under this Agreement on or before the
earlier of (i) such time as Parent's or Sub's designees shall constitute at
least a majority of the Company's Board of Directors pursuant to Section 2.4 of
this Agreement and (ii) the Effective Time; provided, however, that no failure
by the Company to have so performed any such obligation shall constitute a
failure of satisfaction of the foregoing condition where the Company's failure
of performance was caused by Parent.

                     ARTICLE IX - TERMINATION AND AMENDMENT

         Section 9.1. Termination. This Agreement may be terminated at any time
prior to the Effective Time, whether before or after the approval of this
Agreement and the Merger by the shareholders of the Company (if required by
applicable law):

         (a) by mutual written consent of Parent, Sub and the Company;

         (b) by any of Parent, Sub or the Company:

                  (i) if (x) as a result of the failure of any of the Offer
         Conditions set forth in Exhibit A, the Offer shall have terminated or
         expired in accordance with its terms without Sub having accepted for
         payment any Shares pursuant to the Offer or (y) Sub shall have,
         consistent with its obligations hereunder, failed to pay for the Shares
         prior to December 31, 1999 (the "Outside Date"); provided, however,
         that the right to terminate this Agreement pursuant to this Section
         9.1(b)(i) shall not be available to any party whose failure to perform
         any of its obligations under this Agreement results in the failure of
         any such Offer Condition or if the failure of such condition results
         from facts or circumstances that constitute a breach of any
         representation or warranty under this Agreement by such party; or


                                       30
<PAGE>   35
                           (ii) if any Governmental Entity shall have issued an
                  order, decree or ruling or taken any other action permanently
                  enjoining, restraining or otherwise prohibiting the
                  transactions contemplated by this Agreement and such order,
                  decree or ruling or other action shall have become final and
                  nonappealable; provided, however, that Parent or the Company,
                  as the case may be, may not terminate this Agreement pursuant
                  to this Section 9.1 if it has not complied with its
                  obligations under Section 7.09 hereof with respect to any such
                  order, decree, ruling, or other action;

                  (c) by either Parent or Sub if the Company shall have breached
         in any material respect any of its material covenants or other
         agreements contained in this Agreement which breach or failure to
         perform is incapable of being cured or, the Company having been given
         reasonable written notice of such breach by Parent, has not been cured
         within one business day prior to the then scheduled Expiration Date;

                  (d) by any of Company, Parent or Sub if either Parent or Sub
         is entitled to terminate the Offer as a result of the occurrence of any
         event set forth in paragraph (c) of Exhibit A; provided that the
         temporary suspension of the recommendation of the Company's Board of
         Directors referred to herein in accordance with Section 6.2(b) shall
         not give rise to a right of termination pursuant to this Section
         9.1(d);

                  (e) by the Company if Parent or Sub shall have breached in any
         material respect any of its material covenants or other agreements
         contained in this Agreement, which breach or failure to perform is
         incapable of being cured or, Parent having been given reasonable
         written notice of such breach by the Company, has not been cured within
         one business day prior to the then scheduled Expiration Date; or

                  (f) by the Company, if the Offer has not been timely commenced
         in accordance with Section 1.1.

         Section 9.2. Effect of Termination and Abandonment.

         (a) In the event of termination of this Agreement and the abandonment
of the Offer or the Merger pursuant to this Article IX, this Agreement (other
than Sections 4.20, 5.6, 7.3, this Section 9.2, Article X, the penultimate
sentence of Section 1.1(a) and the last sentence of 1.2(c)) shall become void
and of no effect with no liability on the part of any party hereto (or of any of
its directors, officers, employees, agents, legal or financial advisors or other
representatives); provided, however, that no such termination shall relieve any
party hereto from any liability for any breach of this Agreement prior to
termination. If this Agreement is terminated as provided herein, each party
shall hold in confidence all materials obtained from, or based on or otherwise
reflecting or generated in whole or in part from information obtained from, any
other party hereto in connection with the transactions contemplated by this
Agreement, and shall not use any such materials for the purpose of competing
with the businesses of the other parties hereto, whether obtained before or
after the execution hereof.

         (b) In the event that this Agreement is terminated by Parent pursuant
to Section 9.1(d) hereof, then the Company shall promptly pay Parent upon its
request all


                                       31
<PAGE>   36
reasonable out-of-pocket charges and expenses incurred by Parent or its
Affiliates in connection with this Agreement and the transactions contemplated
hereby, including without limitation reasonable and documented attorneys' and
accountants' fees and disbursements and fees and expenses of Parent's financial
advisor and any information agent and depositary retained in connection with the
Offer and all printing and mailing fees and expenses, in an amount not to exceed
$8,000,000.

         Section 9.3. Amendment. This Agreement may be amended by action taken
by Parent, Sub and the Company at any time before or after approval hereof by
the shareholders of the Company (if required), but, after any such approval, no
amendment shall be made which in any way materially adversely affects the rights
of such shareholders, without the further approval of such shareholders. Without
the prior approval of a majority of the then serving Unaffiliated Directors, if
any are then serving on the Board, this Agreement may not be amended at any time
(a) subsequent to the purchase by Sub of any Shares pursuant to the Offer and
(b) prior to the Effective Time. This Agreement may not be amended except by an
instrument in writing signed on behalf of each of the parties hereto.

         Section 9.4. Waiver. At any time prior to the Effective Time, the
parties hereto may (a) extend the time for the performance of any of the
obligations or other acts of the other parties hereto, (b) waive any
inaccuracies in the representations and warranties contained herein or in any
document delivered pursuant thereto and (c) subject to the terms of this
Agreement, waive compliance with any of the agreements or conditions contained
herein. Any agreement on the part of a party hereto to any such extension or
waiver shall be valid only if set forth in a written instrument signed on behalf
of such party and, after the purchase of Shares pursuant to the Offer, but prior
to the Effective Time, as to the Company, only if such waiver is approved by a
majority of the then serving Unaffiliated Directors, if any are then serving on
the Board.

                         ARTICLE X - GENERAL PROVISIONS

         Section 10.1. Non-Survival of Representations and Warranties and
Agreements. None of the representations and warranties in this Agreement or in
any instrument delivered pursuant to this Agreement shall survive the Effective
Time. This Section 10.1 shall not limit any covenant or agreement of the parties
which by its terms contemplates performance after the Effective Time of the
Merger.

         Section 10.2. Notices. All notices and other communications hereunder
shall be in writing and shall be deemed given if delivered personally,
telecopied (which is confirmed) or sent by overnight courier (providing proof of
delivery) to the parties at the following addresses (or at such other address
for a party as shall be specified by like notice):

         (a) if to Parent or Sub, to:

                          EM Laboratories, Incorporated
                          7 Skyline Drive
                          Hawthorne, New York 10532
                          Attn:  President and Chief Executive Officer
                          Telecopy:  (914) 592-8775


                                       32
<PAGE>   37
                  with copies to:

                          Rogers & Wells LLP
                          200 Park Avenue
                          New York, New York 10166
                          Attn:  Klaus H. Jander, Esq.
                          Telecopy:  (212) 878-3025

                  (b) if to the Company, to:

                          VWR Scientific Products Corporation
                          1310 Goshen Parkway
                          West Chester, Pennsylvania 19380
                          Attn:  Jerrold B. Harris
                          Telecopy:  (610) 436-1760

                  with copies to:

                          Drinker Biddle & Reath LLP
                          1000 Westlakes Drive, Suite 300
                          Berwyn, Pennsylvania 19312
                          Attn: Thomas E. Wood, Esq.
                          Telecopy: (610) 993-8585

         Section 10.3. Interpretation; Definitions. When a reference is made in
this Agreement to an Article or a Section, such reference shall be to an Article
or a Section of this Agreement unless otherwise indicated. The table of contents
and headings contained in this Agreement are for reference purposes only and
shall not affect in any way the meaning or interpretation of this Agreement.
Whenever the words "include," "includes" or "including" are used in this
Agreement, they shall be deemed to be followed by the words "without
limitation." As used in this Agreement, the phrase "made available" shall mean
that the information referred to has been made available if requested by the
party to whom such information is to be made available.

         As used in this Agreement, the following terms have the meanings
specified or referred to in this Section 10.3 and shall be equally applicable to
both the singular and plural forms. Any agreement referred to below shall mean
such agreement as amended, supplemented or modified from time to time to the
extent permitted by the applicable provisions thereof and by this Agreement.

         "Acquisition Agreement" shall have the meaning set forth in Section
6.2(b).

         "Affiliate" with respect to any Person, means any other Person
controlling, controlled by or under common control with such Person.


                                       33
<PAGE>   38
         "Affiliated Directors" shall have the meaning set forth in the
Standstill Agreement.

         "Agreement" means this Agreement and Plan of Merger, dated as of June
8, 1999, among Parent, Sub and the Company.

         "Articles of Merger" shall have the meaning set forth in Section 2.2.

         "Benefit Plans" shall have the meaning set forth in Section 4.14(a).

         "Certificate" shall have the meaning set forth in Section 3.2(b).

         "Code" means the Internal Revenue Code of 1986, as amended.

         "Company" shall have the meaning set forth in the introductory
paragraph of this Agreement.

         "Company Option Plans" shall have the meaning set forth in Section
3.2(f).

         "Company Options" shall have the meaning set forth in Section 3.2(f).

         "Company Letter" means the letter from the Company to Parent dated the
date hereof, which letter relates to this Agreement and is designated therein as
the Company Letter.

         "Company Material Contract" shall have the meaning set forth in Section
4.11.

         "Company Permits" shall have the meaning set forth in Section 4.10.

         "Company SEC Documents" shall have the meaning set forth in Section
4.6.

         "Company Securities" shall have the meaning set forth in Section 4.3.

         "Constituent Corporations" shall have the meaning set forth in the
introductory paragraph of this Agreement.

         "Dissenting Shares" shall have the meaning set forth in Section 3.1(d).

         "Dissenting Shareholder" shall have the meaning set forth in Section
3.1(d).

         "Effective Time" shall have the meaning set forth in Section 2.2.

         "Environmental Claim" shall have the meaning set forth in Section 4.15.

         "Environmental Laws" shall have the meaning set forth in Section 4.15.

         "Environmental Permits" shall have the meaning set forth in Section
4.15.

         "ERISA" shall have the meaning set forth in Section 4.14.


                                       34
<PAGE>   39
         "ERISA Affiliate" shall have the meaning set forth in Section 4.14(b).

         "Exchange Act" means the Securities Exchange Act of 1934, as amended,
together with the rules and regulations promulgated thereunder.

         "Expenses" means documented and reasonable out-of-pocket fees and
expenses incurred or paid by or on behalf of Parent in connection with the
Offer, the Merger or the consummation of any of the transactions contemplated by
this Agreement, including all fees and expenses of law firms, commercial banks,
investment banking firms, accountants, experts and consultants to Parent.

         "Expiration Date" shall have the meaning set forth in Section 1.1(a).

         "Governmental Entity" means any Federal, state, local or foreign
government or any court, tribunal, administrative agency or commission or other
governmental or other regulatory authority or agency, domestic, foreign or
supranational.

         "Hazardous Materials" shall have the meaning set forth in Section 4.15.

         "HSR Act" means the Hart-Scott-Rodino Antitrust Improvements Act of
1976, as amended.

         "Information Statement" shall have the meaning set forth in Section
4.8.

         "knowledge" shall mean, with respect to the Company, the actual
knowledge of its executive officers and the actual knowledge of the senior
officer of each of its foreign Subsidiaries and, with respect to Parent, the
actual knowledge of its executive officers of Parent.

         "Law" means any law, statute, rule, regulation, ordinance and other
pronouncement having the effect of law of the United States, any foreign country
or any domestic or foreign state, county, city or other political subdivision or
of any Governmental Entity.

         "Liens" means any pledges, claims, liens, charges, encumbrances and
security interests of any kind or nature whatsoever.

         "Litigation" shall have the meaning set forth in Section 4.14.

         "Materially Adverse Change" or "Materially Adverse Effect" means, when
used in connection with the Company or Parent, as the case may be, any change or
effect (or any development that, insofar as can reasonably be foreseen, is
likely to result in any change or effect) or fact or condition (or any
development that, insofar as can reasonably be foreseen, is likely to result in
any fact or condition), except in respect of general economic or financial
conditions in the industry of which the Company, or Parent, as the case may be,
is a part, that is materially adverse to the business, properties, assets,
condition (financial or otherwise) or results of operations of the Company and
its Subsidiaries taken as a whole, or Parent and its Subsidiaries taken as a
whole, as the case may be.


                                       35
<PAGE>   40
         "Merger" shall have the meaning set forth in the third Whereas
provision of this Agreement.

         "Merger Consideration" shall have the meaning set forth in Section
3.1(c).

         "Minimum Condition" shall have the meaning set forth in Exhibit A of
this Agreement.

         "NASD" shall mean the National Association of Securities Dealers, Inc.

         "Offer" shall have the meaning set forth in the second Whereas
provision of this Agreement.

         "Offer Conditions" shall have the meaning set forth in Section 1.1(a).

         "Offer Documents" shall have the meaning set forth in Section 1.1(b).

         "Offer Price" shall have the meaning set forth in the second Whereas
provision of this Agreement.

         "Outside Date" shall have the meaning set forth in Section 9.1(b)(i).

         "Parent" shall have the meaning set forth in the introductory paragraph
of this Agreement.

         "Parent Group" shall have the meaning set forth in Section 7.09(b).

         "Parent Letter" means the letter from Parent to the Company dated the
date hereof, which letter relates to this Agreement and is designated therein as
the Parent Letter.

         "Paying Agent" shall have the meaning set forth in Section 3.2(a).

         "PBCL" means the Business Corporation Law of 1988, as amended, of the
Commonwealth of Pennsylvania.

         "Person" shall mean any individual, corporation, partnership, limited
liability company, joint venture, association, trust, unincorporated
organization or other entity.

         "Preferred Stock" shall have the meaning set forth in Section 4.3.

         "Premises" shall have the meaning set forth in Section 4.15(a)(ii).

         "Proxy Statement" shall have the meaning set forth in Section 4.8.

         "Schedule 13E-3" shall have the meaning set forth in Section 1.1(b).

         "Schedule 14D-1" shall have the meaning set forth in Section 1.1(b).

         "Schedule 14D-9" shall have the meaning set forth in Section 1.2(b).


                                       36
<PAGE>   41
         "SEC" means the Securities and Exchange Commission.

         "Securities Act" means the Securities Act of 1933, as amended, together
with the rules and regulations promulgated thereunder.

         "Shares" shall have the meaning set forth in the second Whereas
provision of this Agreement.

         "Standstill Agreement" means the Standstill Agreement by and between EM
Industries, Incorporated and the Company, dated as of February 27, 1995, as
amended by Amendment No. 1 to the Standstill Agreement, dated September 15,
1995, by and among EM Industries, Incorporated, Parent and the Company.

         "Shareholders Agreement" shall have the meaning set forth in the fifth
Whereas provision of this Agreement.

         "Shareholders Meeting" shall have the meaning set forth in Section
7.1(a).

         "Sub" shall have the meaning set forth in the introductory paragraph of
this Agreement.

         "Subsidiary" or "Subsidiary" of any Person means another Person, an
amount of the voting securities, other voting ownership or voting partnership
interests of which is sufficient to elect at least a majority of its Board of
Directors or other governing body (or, if there are no such voting interests,
50% or more of the equity interests of which) is owned directly or indirectly by
such first Person.

         "Surviving Corporation" shall have the meaning set forth in Section
2.1.

         "Takeover Proposal" shall have the meaning set forth in Section 6.2(a).

         "Tax" shall have the meaning set forth in Section 4.12(f).

         "Tax Return" shall have the meaning set forth in Section 4.12(f).

         "Transfer Taxes" shall have the meaning set forth in Section 7.5.

         "Unaffiliated Directors" shall have the meaning set forth in the
Standstill Agreement.

         "Written Opinion" shall have the meaning set forth in Section 6.2(b).

         Section 10.4. Counterparts. This Agreement may be executed in
counterparts, all of which shall be considered one and the same agreement, and
shall become effective when one or more counterparts have been signed by each of
the parties and delivered to the other parties, it being understood that all
parties need not sign the same counterpart.


                                       37
<PAGE>   42
         Section 10.5. Entire Agreement; No Third-Party Beneficiaries. Except
for the Standstill Agreement and the Shareholders Agreement, this Agreement
constitutes the entire agreement and supersedes all prior agreements and
understandings, both written and oral, among the parties with respect to the
subject matter hereof. This Agreement is not intended to confer upon any Person
other than the parties hereto any rights or remedies hereunder.

         Section 10.6. Governing Law. This Agreement shall be exclusively
governed by, construed in accordance with, and interpreted according to the
substantive law of the Commonwealth of Pennsylvania without giving effect to the
principles of conflict of laws.

         Section 10.7. Assignment. Except as otherwise provided in Section
1.1(a), neither this Agreement nor any of the rights, interests or obligations
hereunder shall be assigned or delegated by any of the parties hereto without
the prior written consent of the other parties except that either Parent or Sub
shall have the right without the consent of the Company to assign all of its
respective rights and delegate all of its respective obligations under this
Agreement to any Affiliate of either Parent or Sub, subject in any case to
Parent's guarantee of the performance by such Affiliate of all of Parent's and
Sub's obligations hereunder, including without limitation the obligation to pay
the Offer Price and the Merger Consideration, and the Company shall take all
action necessary to permit such assignee to consummate the Merger after the
purchase of Shares. Subject to the preceding sentence, this Agreement shall be
binding upon, inure to the benefit of, and be enforceable by, the parties and
their respective successors and assigns.

         Section 10.8. Severability. In case any provision in this Agreement
shall be held invalid, illegal or unenforceable in a jurisdiction, such
provision shall be modified or deleted, as to the jurisdiction involved, only to
the extent necessary to render the same valid, legal and enforceable, and the
validity, legality and enforceability of the remaining provisions hereof shall
not in any way be affected or impaired thereby nor shall the validity, legality
or enforceability of such provision be affected thereby in any other
jurisdiction.

         Section 10.9. Enforcement of this Agreement. The parties hereto agree
that irreparable damage would occur in the event that any of the provisions of
this Agreement were not performed in accordance with their specific terms or
were otherwise breached. It is accordingly agreed that the parties shall be
entitled to an injunction or injunctions to prevent breaches of this Agreement
and to enforce specifically the terms and provisions hereof in any court of the
United States or any state having jurisdiction, such remedy being in addition to
any other remedy to which any party is entitled at law or in equity.

         Section 10.10. Obligations of Subsidiaries. Whenever this Agreement
requires any Subsidiary of Parent (including Sub) or of the Company to take any
action, such requirement shall be deemed to include an undertaking on the part
of Parent or the Company, as the case may be, to cause such Subsidiary to take
such action.

         Section 10.11. Merger of the Company into Sub. If at any time prior to
the Effective Time Parent notifies the Company that it desires for the Company
to be merged with and into Sub (in lieu of Sub merging with and into the
Company), the Company, Parent and Sub shall promptly negotiate in good faith an
amendment to and restatement of this Agreement which


                                       38
<PAGE>   43
provides for such changes to this Agreement as are necessary or appropriate to
effectuate such merger (and upon finalization thereof, the parties shall
promptly enter into such amendment and restatement).


                                       39
<PAGE>   44
                  IN WITNESS WHEREOF, Parent, Sub and the Company have caused
this Agreement to be signed by their respective officers thereunto duly
authorized all as of the date first written above.


                                         EM LABORATORIES, INCORPORATED


                                         By:   /s/ Stephen J. Kunst
                                             ----------------------------------
                                         Name: Stephen J. Kunst
                                         Title:  Vice-President & Secretary



                                         EM SUBSIDIARY, INC.


                                         By:   /s/ Dieter Janssen
                                             ----------------------------------
                                         Name: Dieter Janssen
                                         Title:  President



                                         VWR SCIENTIFIC PRODUCTS CORPORATION


                                         By:   /s/ Jerrold B. Harris
                                             ----------------------------------
                                         Name: Jerrold B. Harris
                                         Title: President/CEO


                                       40
<PAGE>   45
                                                                       EXHIBIT A


                             CONDITIONS OF THE OFFER


                  Notwithstanding any other provision of the Offer, Sub shall
not be required to accept for payment or, subject to any applicable rules and
regulations of the SEC, including Rule 14e-1(c) promulgated under the Exchange
Act (relating to Sub's obligation to pay for or return tendered Shares after
termination or withdrawal of the Offer), pay for, and (subject to any such rules
or regulations) may delay the acceptance for payment of any tendered Shares and
(except as provided in this Agreement) amend or terminate the Offer (whether or
not any Shares have been theretofore purchased or paid for pursuant to the
Offer) (A) unless the following conditions shall have been satisfied: (i) there
shall be validly tendered and not withdrawn prior to the expiration of the Offer
a number of Shares which represents a majority of the total number of
outstanding Shares, excluding any Shares held by Parent, Sub or any Affiliate
thereof (the "Minimum Condition") and (ii) any applicable waiting period under
the HSR Act or any similar applicable foreign Law, including but not limited to
the requirements of the German federal antitrust supervisory authority
(Bundeskartelamt), shall have expired or been terminated prior to the expiration
of the Offer and the required approval of any Governmental Entity for this
Agreement or the consummation of the transactions contemplated by this Agreement
shall have been obtained or (B) if at any time after the date of this Agreement
and before the time of payment for any such Shares (whether or not any Shares
have theretofore been accepted for payment or paid for pursuant to the Offer),
any of the following events shall occur and be continuing:

                  (a) there shall be threatened or pending by any Governmental
         Entity any suit, action or proceeding (i) challenging the acquisition
         by Parent or Sub of any Shares under the Offer, seeking to restrain or
         prohibit the making or consummation of the Offer or the Merger or the
         performance of any of the other transactions contemplated by this
         Agreement or the Shareholders Agreement or seeking to obtain from the
         Company, Parent or Sub any damages that are material in relation to the
         Company and its subsidiaries taken as a whole, (ii) seeking to prohibit
         or materially limit the ownership or operation by the Company, Parent
         or any of their respective Subsidiaries of any portion of the business
         or assets of the Company and its Subsidiaries, taken as a whole, or
         Parent and its Subsidiaries, taken as a whole, or to compel the Company
         or Parent to dispose of or hold separate any portion of the business or
         assets of the Company and its Subsidiaries, taken as a whole, or Parent
         and its Subsidiaries, taken as a whole, as a result of the Offer or any
         of the other transactions contemplated by this Agreement or the
         Shareholders Agreement, (iii) seeking to impose limitations on the
         ability of Parent or Sub to acquire or hold, or exercise full rights of
         ownership of, any Shares to be accepted for payment pursuant to the
         Offer including, without limitation, the right to vote such Shares on
         all matters properly presented to the shareholders of the Company, (iv)
         seeking to prohibit Parent or any of its Subsidiaries from effectively
         controlling in any respect any portion of the business or operations of
         the Company or its Subsidiaries or (v) which otherwise is reasonably
         likely to have a Materially Adverse Effect on the business, properties,
         assets, financial condition or results of operations of the Company and
         its Subsidiaries taken as a whole;
<PAGE>   46
                  (b) there shall be enacted, entered, enforced, promulgated or
         deemed applicable to the Offer or the Merger by any Governmental Entity
         any statute, rule, regulation, judgment, order or injunction, other
         than the application to the Offer or the Merger of applicable waiting
         periods under the HSR Act, that is reasonably likely to result,
         directly or indirectly, in any of the consequences referred to in
         clauses (i) through (v) of paragraph (a) above;

                  (c) the Unaffiliated Directors, or any committee designated
         thereby, shall have withdrawn, or modified or changed (including by
         amendment of the Schedule 14D-9) their recommendation of the Offer, the
         Merger or this Agreement or approved or recommended a Takeover
         Proposal, or shall have resolved to do so;

                  (d) it shall have been publicly disclosed or Parent or Sub
         shall have otherwise learned that any Person or "group" (as defined in
         Section 13(d)(3) of the Exchange Act), other than Parent or its
         Affiliates or any group of which any of them is a member, shall have
         acquired beneficial ownership (determined pursuant to Rule 13d-3 under
         the Exchange Act) of more than 20% of the Shares through the
         acquisition of stock, the formation of a group or otherwise, or shall
         have been granted an option, right or warrant, conditional or
         otherwise, to acquire beneficial ownership of more than 20% of the
         Shares;

                  (e) any of the representations and warranties of the Company
         set forth in this Agreement (without giving effect to the materiality
         limitations contained herein) shall not be true and correct in any
         respect as of the date of consummation of the Offer as though made on
         and as of such date (except for representations and warranties made as
         of a specified date, which shall not be true and correct as of the
         specified date), except for any breach or breaches which, in the
         aggregate, would not have a Materially Adverse Effect on the Company;

                  (f) the Company shall have failed to perform in any material
         respect any material obligation or to comply in any material respect
         with any material agreement or covenant of the Company to be performed
         or complied with by it under this Agreement;

                  (g) there shall have occurred any event that, individually or
         when considered together with any other matter, has had or is
         reasonably likely in the future to have a Materially Adverse Effect on
         the Company;

                  (h) there shall have occurred (i) any general suspension of,
         or limitation on prices (other than suspensions or limitations
         triggered by price fluctuations on a trading day) for, trading in
         securities on any national securities exchange or the over-the-counter
         market in the United States of America or the Federal Republic of
         Germany, (ii) a declaration of a banking moratorium or any suspension
         of payments in respect of banks in the United States of America or in
         the Federal Republic of Germany, (iii) any material limitation (whether
         or not mandatory) by any government or governmental, administrative or
         regulatory authority or agency, domestic or foreign, on, the extension
         of credit by banks or other lending


                                      A-2
<PAGE>   47
         institutions, (iv) a commencement of a war or armed hostilities or
         other national calamity directly or indirectly involving the United
         States of America or the Federal Republic of Germany and Parent shall
         have determined that there is a reasonable likelihood that such event
         may be of materially adverse significance to it or the Company, or (v)
         in the case of any of the foregoing existing at the time of the
         execution of this Agreement, a material acceleration or worsening
         thereof;

                  (i) any applicable waiting period under Section 721 of Title
         VII of the Defense Production Act of 1950, as amended by Section 5021
         of the Omnibus Trade and Competitiveness Act of 1988 and Section 837 of
         the National Defense Authority Act for Fiscal Year 1993 (the
         "Exon-Florio Provisions") shall not have expired, (b) the Committee on
         Foreign Investment in the United States ("CFIUS") shall have initiated
         an investigation of the transactions contemplated under this Agreement,
         or (c) if CFIUS initiates an investigation, the applicable waiting
         period under the Exon-Florio Provisions relating to such investigation
         shall have expired, or such investigation shall have been completed and
         the President shall have announced a decision to take action pursuant
         to the Exon-Florio Provisions before the expiration of the period
         ending on the 15th day (or if such day is not a business day, the next
         business day) following the completion of such investigation, which has
         a substantial likelihood of resulting, directly or indirectly, in any
         of the consequences referred to in clauses (i) through (v) of paragraph
         (a) above or such 15 day waiting period shall not have expired; or

                  (j) this Agreement shall have been terminated in accordance
         with its terms.

         The foregoing conditions are for the sole benefit of Parent and Sub and
may, subject to the terms of this Agreement, be waived by Parent and Sub in
whole or in part at any time and from time to time in their sole discretion. The
failure by Parent or Sub at any time to exercise any of the foregoing rights
shall not be deemed a waiver of any such right, the waiver of any such right
with respect to particular facts and circumstances shall not be deemed a waiver
with respect to any other facts and circumstances and each such right shall be
deemed an ongoing right that may be asserted at any time and from time to time.
Terms used but not defined herein shall have the meanings assigned to such terms
in the Agreement to which this Exhibit A is a part.


                                      A-3

<PAGE>   1
                                                                  Exhibit (c)(2)


                              SHAREHOLDER AGREEMENT

         This Shareholder Agreement, dated as of June 8, 1999 (this
"Agreement"), is made and entered into among EM Laboratories, a New York
corporation ("Parent"), EM Subsidiary, Inc., a Pennsylvania corporation and a
wholly owned subsidiary of Parent ("Sub"), and each of the parties listed on the
signature pages hereto (each a "Shareholder," and collectively, the
"Shareholders").

         WHEREAS, each of the Shareholders is, as of the date hereof, the
beneficial owner of the number of shares of common stock, par value $1.00 per
share (the "Common Stock"), of VWR Scientific Products Corporation, a
Pennsylvania corporation (the "Company"), set forth opposite his name on Annex I
hereto;

         WHEREAS, concurrently herewith, Parent, Sub and the Company have
entered into an Agreement and Plan of Merger, dated as of the date hereof (the
"Merger Agreement"), which provides, upon the terms and subject to the
conditions set forth therein, for (i) the commencement by Sub of a tender offer
(the "Offer") for all of the issued and outstanding shares of Common Stock of
the Company and (ii) the subsequent merger of Sub with and into the Company (the
"Merger");

         WHEREAS, as a condition to the willingness of Parent and Sub to enter
into the Merger Agreement and in order to induce Parent and Sub to enter into
the Merger Agreement, Shareholders have agreed to enter into this Agreement; and

         WHEREAS, capitalized terms used but not defined in this Agreement have
the meaning given to those terms in the Merger Agreement.

         NOW, THEREFORE, in consideration of the execution and delivery by
Parent and Sub of the Merger Agreement and the mutual representations,
warranties, covenants and agreements set forth herein and therein, and other
good and valuable consideration, the receipt and sufficiency of which are hereby
acknowledged, and intending to be bound hereby, the parties hereto agree as
follows:

                                   ARTICLE I.

                                TENDER OF SHARES

         Section 1.1. Tender. Each Shareholder hereby agrees validly to tender
his Shares (or cause the record owner of such Shares validly to tender), and not
to withdraw any Shares so tendered, promptly, and in any event not later than
the fifth business day after commencement of the Offer pursuant to Section 1.1
of the Merger Agreement and Rule 14d-2 under the Securities Exchange Act of
1934, as amended (the "Exchange Act"); provided, however, that in the event that
the Unaffiliated Directors (as defined in the Merger Agreement) (or any
committee designated thereby) shall withdraw, or propose publicly to withdraw,
the approval or recommendation by such Unaffiliated Directors or such committee
of the Offer, the Merger or Merger Agreement (or any transaction contemplated
thereby), each Shareholder shall have the right to withdraw any Shares so
tendered. Sub hereby agrees to purchase all the Shareholder's Shares so tendered
at the Purchase Price or any higher price that may be paid in the Offer;
provided, however, that Sub's obligation to accept for payment and pay for the
Common Stock (including the Shares) in the Offer is subject to all the terms and
conditions of the Offer set forth in the Merger Agreement.
<PAGE>   2
         Section 1.2. Certain Warranties. Without limiting the generality or
effect of any other term or condition of the Offer, the transfer by each of the
Shareholders of his Shares to Sub in the Offer shall pass to and unconditionally
vest in Sub good and valid title to the Shares, free and clear of all liens,
claims, restrictions, security interests, pledges, limitations and Encumbrances
(as defined herein) whatsoever.

         Section 1.3. Disclosure. Each Shareholder hereby authorizes Parent and
Sub to publish and disclose in the Offer Documents and, if approval of the
Company's shareholders is required under applicable law, the Proxy Statement
(including all documents and schedules filed with the SEC), his identity and
ownership of the Shares and the nature of his commitments, arrangements and
understandings under this Agreement provided that each Shareholder is provided
with a reasonable opportunity to review in advance any such disclosure contained
in the Offer Documents or the Proxy Statement.

                                  ARTICLE II.

                                 GRANT OF PROXY

         Section 2.1. Proxy. Each Shareholder hereby irrevocably appoints Parent
and Sub (and any nominee of either Parent or Sub) and each of them, with full
power of substitution and re-substitution, (i) as proxies for such Shareholder
to vote all of his Shares for and in the name, place, and stead of such
Shareholder at any meeting of the holders of Common Stock or any adjournments or
postponements thereof or pursuant to any consent in lieu of a meeting, or
otherwise, with respect only to the approval of this Agreement, the Merger
Agreement, the Offer, the transactions contemplated by the Merger Agreement, any
matters related to or in connection with the Merger and any corporate action,
the consummation of which would violate, frustrate the purposes of, prevent or
delay the consummation of the transactions contemplated by the Merger Agreement
(including, without limitation, any proposal to amend the Articles of
Incorporation or By-laws of the Company or approve any merger, consolidation,
sale or purchase of any assets, issuance of Common Stock or any other equity
security of the Company (or a security convertible into an equity security of
the Company), reorganization, recapitalization, liquidation, winding up of or by
the Company or any similar transaction) and (ii) as his true and lawful
attorneys-in-fact to execute one or more consents or other instruments from time
to time in order to take such actions informally without notice of a meeting of
the shareholders of the Company; provided, however, that in the event that the
Unaffiliated Directors (as defined in the Merger Agreement) (or any committee
designated thereby) shall withdraw, or propose publicly to withdraw, the
approval or recommendation by such Unaffiliated Directors or such committee of
the Offer, the Merger or Merger Agreement (or any transaction contemplated
thereby), such appointment of Parent and Sub as proxies shall become immediately
revocable. Each Shareholder agrees that the foregoing proxy and
power-of-attorney granted to Parent and Sub (and their respective nominees) in
this subsection shall be irrevocable during the term of this Agreement and shall
be deemed to be coupled with an interest. Each Shareholder represents that any
proxies heretofore given in respect of his Shares are not irrevocable, and that
such proxies are hereby revoked.

                                  ARTICLE III.

                                     OPTION

         Section 3.1. Grant of Option. Each Shareholder hereby grants to Parent
or Sub, as Parent may designate (each, an "Optionee"), an irrevocable option
(the "Option") to purchase the number of shares of Common Stock opposite such
Shareholder's name on Annex I hereto and any additional shares of Common Stock
acquired by such Shareholder in any capacity (whether by exercise of options,
warrants or rights, the conversion or exchange of convertible or exchangeable
securities or by means of a purchase, distribution, dividend or otherwise)
(collectively, the "Shares") at a purchase price of $37.00 per share or such
higher price as may be paid by Parent or Sub pursuant to the Offer (the
"Purchase Price").


                                       2
<PAGE>   3
         Section 3.2. Exercise of Option.

         (a) Parent or Sub may exercise, but shall not be required to exercise,
the Option from time to time, in whole or in part, on or after the date of the
consummation of the Offer but prior to the Effective Date if the Offer is
consummated but (whether due to improper tender or withdrawal of tender) Sub has
not accepted for payment and paid for all of a Shareholder's Shares.

         (b) Parent and Sub's obligation to purchase Shares upon exercise of the
Option shall be subject to the conditions that:

         (i) no preliminary or permanent injunction or other order issued by any
court or governmental, administrative or regulatory agency or authority
prohibiting the exercise of the Option pursuant to this Agreement shall be in
effect (and no action or proceeding shall have been commenced or threatened for
the purpose of obtaining such an injunction or order);

         (ii) any applicable waiting period under the Hart-Scott-Rodino
Antitrust Improvements Act of 1976, as amended (the "HSR Act") or similar
foreign law required for the purchase of the Shares upon such exercise shall
have expired; and

         (iii) there shall have been no material breach of the representations,
warranties or covenants of any Shareholder contained in this Agreement;
provided, that any failure by Parent or Sub to purchase Shares upon exercise of
the Option at any Closing (as defined below) as a result of the nonsatisfaction
of any of such conditions shall not affect or prejudice Parent or Sub's right to
purchase such Shares upon the subsequent satisfaction of such conditions.

         (c) In the event that Parent or Sub, as the case may be, wishes to
exercise the Option, Parent or Sub, as the case may be, shall send a written
notice to the Shareholders specifying the total number of such Shareholder's
Shares it wishes to purchase and the place and date for the closing of such
purchase (each, a "Closing") at least three business days prior to such Closing;
and

         (d) At any Closing, (i) each Shareholder shall deliver to Parent or Sub
(in accordance with Parent or Sub's instructions) a certificate or certificates
(the "Certificates") representing all of such Shareholder's Shares being
purchased by Sub at the Closing, duly endorsed or accompanied by stock powers
duly executed in blank and (ii) Sub shall deliver to such Shareholder a
certified or bank cashier's check or checks payable to or upon the order of such
Shareholder in an amount equal to (A) the number of such Shareholder's Shares
being purchased at the Closing multiplied by (B) the Purchase Price.

                                  ARTICLE IV.

                  REPRESENTATIONS AND WARRANTIES OF SHAREHOLDER

         Each Shareholder severally, and not jointly, represents and warrants to
Parent and Sub as follows:

         Section 4.1. Title to Shares. Such Shareholder is the sole beneficial
owner of the Shares (as may be adjusted from time to time pursuant to Section
7.1 hereof) set forth opposite his name on Annex I to this Agreement, free and
clear of any pledge, lien, security interest, mortgage, charge, claim, equity,
option, proxy, voting restriction, voting trust or agreement, understanding,
arrangement, right of first refusal, limitation on disposition, adverse claim of
ownership or use or encumbrance of any kind ("Encumbrances"), other than
restrictions imposed by applicable securities laws or pursuant to this Agreement
and the Merger Agreement, and except that as of the date hereof 40,000 Shares
owned by N. Stewart Rogers are pledged as security for a loan.


                                       3
<PAGE>   4
         Section 4.2. Total Shares. On the date hereof, the Shares opposite such
Shareholder's name on Annex I hereto constitute all of the Shares owned by such
Shareholder. Such Shareholder has the exclusive right to vote or dispose of (or
exercise the voting or disposition of) such Shares and Shareholder owns no
options to purchase or rights to subscribe for or otherwise acquire any
securities of the Company other than as set forth on Annex I hereto.

         Section 4.3. Due Authorization. Each Shareholder has the legal capacity
to execute and deliver this Agreement and to consummate the transactions
contemplated hereby. This Agreement has been duly executed and delivered by or
on behalf of such Shareholder and, assuming its due authorization, execution and
delivery by Parent and Sub, constitutes a legal, valid and binding obligation of
such Shareholder, enforceable against such Shareholder in accordance with its
terms, except as enforcement may be limited by bankruptcy, insolvency,
moratorium or other laws effecting creditors' rights generally and by general
equitable principles (regardless of whether such enforceability is considered in
a proceeding in equity or at law).

         Section 4.4. No Conflicts; Required Filings and Consents.

                  (a) The execution and delivery of this Agreement by such
Shareholder do not, and the performance by such Shareholder of such
Shareholder's obligations under this Agreement will not (i) conflict with or
violate any law applicable to such Shareholder or by which such Shareholder or
any of such Shareholder's properties is bound or affected or (ii) result in any
breach of or constitute a default (or an event that with notice or lapse of time
or both would become a default) under, or give to others any rights of
termination, acceleration or cancellation of, or result in the creation of a
lien or encumbrance on any assets of such Shareholder, including, without
limitation, his Shares, pursuant to, any note, bond, mortgage, indenture,
contract, agreement, lease, license, permit, franchise or other instrument or
obligation to which such Shareholder is a party or by which such Shareholder or
any of such Shareholder's assets is bound or affected, except for any such
breaches, defaults or other occurrences that would not prevent or delay the
performance by such Shareholder of such Shareholder's obligations under this
Agreement.

                  (b) The execution and delivery of this Agreement by such
Shareholder do not, and the performance by such Shareholder of such
Shareholder's obligations under this Agreement will not, require any consent,
approval, authorization or permit of, or filing with or notification to, any
governmental or regulatory authority (other than any necessary filing under the
HSR Act or similar foreign laws or the Exchange Act), domestic or foreign,
except where the failure to obtain such consents, approvals, authorizations or
permits, or to make such filings or notifications, would not prevent or delay
the performance by such Shareholder of such Shareholder's obligations under this
Agreement. There is no beneficiary or holder of a voting trust certificate or
other interest of any trust of which such Shareholder is trustee whose consent
is required for the execution and delivery of this Agreement or the consummation
by Shareholder of the transactions contemplated hereby.

         Section 4.5. No Finder's Fees. No broker, investment banker, financial
adviser or other person is entitled to any broker's, finder's, financial
advisor's or other similar fee or commission in connection with the transactions
contemplated hereby based upon arrangements made by or on behalf of such
Shareholder. Such Shareholder hereby acknowledges that he is not entitled to
receive any broker's, finder's, financial advisor's or other similar fee or
commission in connection with the transactions contemplated hereby or by the
Merger Agreement.


                                       4
<PAGE>   5
                                   ARTICLE V.

                        REPRESENTATIONS AND WARRANTIES OF
                                SUB AND PURCHASER

         Parent and Sub hereby, jointly and severally, represent and warrant to
each Shareholder as follows:

         Section 5.1. Due Organization, Authorization, etc. Sub and Parent are
corporations duly organized, validly existing and in good standing under the
laws of their respective jurisdictions of incorporation. Sub and Parent have all
requisite corporate power and authority to execute and deliver this Agreement
and to consummate the transactions contemplated hereby. The execution and
delivery of this Agreement and the consummation of the transactions contemplated
hereby by each of Sub and Parent have been duly authorized by all necessary
corporate action on the part of Sub and Parent, respectively. This Agreement has
been duly executed and delivered by each of Sub and Parent and, assuming its due
authorization, execution and delivery by each Shareholder, constitutes a legal,
valid and binding obligation of each of Sub and Parent, enforceable against Sub
and Parent in accordance with its terms, except as enforcement may be limited by
bankruptcy, insolvency, moratorium or other laws affecting rights of creditors
generally and by general equitable principles (regardless of whether such
enforceability is considered in a proceeding in equity or at law).

         Section 5.2. Funds. Parent has sufficient funds available to it to pay
for the Shareholder Shares in accordance with this Agreement and the Merger
Agreement.

         Section 5.3. No Conflicts.

                  (a) The execution and delivery of this Agreement by Parent and
Sub do not, and the performance by Parent and Sub of their obligations under
this Agreement will not (i) conflict with or violate any law applicable to
Parent or Sub or by which Parent or Sub any of their properties is bound or
affected or (ii) result in any breach of or constitute a default (or an event
that with notice or lapse of time or both would become a default) under, or give
to others any rights of termination, acceleration or cancellation of, or result
in the creation of a lien or encumbrance on any assets of Parent or Sub,
pursuant to, any note, bond, mortgage, indenture, contract, agreement, lease,
license, permit, franchise or other instrument or obligation to which Parent or
Sub is a party or by which Parent or Sub or any of their assets is bound or
affected, except for any such breaches, defaults or other occurrences that would
not prevent or delay the performance by Parent or Sub of their obligations under
this Agreement.

                  (b) The execution and delivery of this Agreement by Parent and
Sub do not, and the performance by Parent and Sub of their obligations under
this Agreement will not, require any consent, approval, authorization or permit
of, or filing with or notification to, any governmental or regulatory authority
(other than any necessary filing under the HSR Act or similar foreign laws or
the Exchange Act), domestic or foreign, except where the failure to obtain such
consents, approvals, authorizations or permits, or to make such filings or
notifications, would not prevent or delay the performance by Parent or Sub of
their obligations under this Agreement.

         Section 5.4. Purchase Without View to Distribute. Any Shareholder
Shares acquired by Sub hereunder are not being acquired with a view to
distribution within the meaning of the Securities Act of 1933, as amended (the
"1933 Act"), and the rules and regulations thereunder, and Sub will not
distribute such Shareholder Shares in violation of the 1933 Act.


                                       5
<PAGE>   6
                                  ARTICLE VI.

                          COVENANTS OF THE SHAREHOLDERS

         Section 6.1. No Inconsistent Arrangements. Each Shareholder hereby
covenants and agrees that, except as contemplated by this Agreement and the
Merger Agreement, he shall not (i) transfer (which term shall include, without
limitation, any sale, gift, pledge or other disposition), or consent to any
transfer of, any or all of his Shares or any interest therein, (ii) enter into
any contract, option or other agreement or understanding with respect to any
transfer of any or all of such shares or any interest therein, (iii) grant any
proxy, power-of-attorney or other authorization in or with respect to his
Shares, (iv) deposit his Shares into a voting trust or enter into a voting
agreement or arrangement with respect to his Shares, or (v) take any other
action that would in any way restrict, limit or interfere with the performance
of his obligations hereunder or the transactions contemplated hereby or by the
Merger Agreement.

         Section 6.2. Each Shareholder covenants and agrees that, during the
term of this Agreement, he shall not, directly or indirectly through any
officer, director, agent or other representative, solicit, initiate or
encourage, or take any other action designed or reasonably likely to facilitate,
any inquiries or the making of any proposal from any person (other than Parent,
Sub and any of their Affiliates (as defined below)) relating to (i) any
acquisition of all or any shares of Common Stock of the Company or (ii) any
transaction that constitutes a Takeover Proposal, or participate in any
negotiations regarding, or furnish to any person any information with respect
to, or otherwise cooperate in any way with, or assist or participate in or
facilitate or encourage, any effort or attempt by any person to do or seek to do
any of the foregoing. Such Shareholder immediately shall cease and cause to be
terminated all existing discussions or negotiations of such Shareholder and his
agents or other representatives with any person conducted heretofore with
respect to any of the foregoing. Such Shareholder shall notify Parent and Sub
promptly if any such proposal or offer, or any inquiry or contact with any
person with respect thereto, is made and shall, in any such notice to Parent and
Sub, indicate in reasonable detail the identity of the person making such
proposal, offer, inquiry or contact and the terms and conditions of such
proposal, offer, inquiry or contact. Notwithstanding any provision of this
Section 6.2 to the contrary, if such Shareholder or any agent or representative
of such Shareholder is a member of the Board of Directors of the Company, such
member of the Board of Directors of the Company may take actions in such
capacity to the extent permitted by Section 6.2 of the Merger Agreement. As used
in this Agreement, with respect to any person, "Affiliate" shall mean any entity
directly or indirectly controlling, controlled by, or under common control with,
such person.

         Section 6.3. Waiver of Appraisal Rights. Each Shareholder hereby waives
any rights of appraisal or rights to dissent from the Merger.

                                  ARTICLE VII.

                                  MISCELLANEOUS

         Section 7.1. Certain Events. In the event of any stock split, stock
dividend, merger, reorganization, recapitalization or other change in the
capital structure of the Company affecting the Shares or the acquisition of
additional shares of capital stock or other securities or rights of the Company
by any Shareholder, the number of such Shareholder's Shares shall be adjusted
appropriately, and this Agreement and the rights and obligations hereunder shall
attach to any additional shares of Common Stock or other securities or rights of
the Company issued to or acquired by any such Shareholder in respect of such
Shareholder Shares.

         Section 7.2. Termination. This Agreement shall terminate and be of no
further force and effect automatically and without any required action of the
parties hereto upon the earlier to occur of (A) the


                                       6
<PAGE>   7
Effective Time and (B) the calendar day immediately after the termination of the
Merger Agreement in accordance with its terms; provided, however, that Articles
III, IV, V, VI and VII of this Agreement shall survive the termination of this
Agreement until the earlier to occur of the Closing of the exercise of the
Option and the expiration of the Option. No such termination of this Agreement
shall relieve any party hereto from any liability for any breach of this
Agreement prior to termination.

         Section 7.3. Expenses. All costs and expenses incurred in connection
with the transactions contemplated by this Agreement shall be for the account of
the party incurring such costs and expenses.

         Section 7.4. Notices. All notices and other communications hereunder
shall be in writing and shall be deemed to have been duly given when delivered
in person, by facsimile, receipt confirmed, or on the next business day when
sent by overnight courier or on the second succeeding business day when sent by
registered or certified mail (postage prepaid, return receipt requested) to the
respective parties at the following addresses (or at such other address for a
party as shall be specified by like notice):

                  (a)      if to Parent or Sub, to:

                           EM Industries, Incorporated
                           7 Skyline Drive
                           Hawthorne, New York 10532
                           Attention:   Stephen J. Kunst
                           Facsimile:   (914) 592-8775

                           with copies to:

                           Rogers & Wells LLP
                           200 Park Avenue
                           New York, New York 10166
                           Attention:  Klaus H. Jander, Esq.
                           Facsimile:  (212) 878-3025

                  (b)      If to Shareholders, to the address set forth in Annex
                           I hereto:

         Section 7.5. Severability. In case any provision in this Agreement
shall be held invalid, illegal or unenforceable by a court of competent
jurisdiction, such provision shall be modified or deleted, as to the
jurisdiction involved, only to the extent necessary to render the same valid,
legal and enforceable, and the validity, legality and enforceability of the
remaining provisions hereof shall not in any way be affected or impaired thereby
nor shall the validity, legality or enforceability of such provision be affected
thereby in any other jurisdiction.

         Section 7.6. Entire Agreement. This Agreement constitutes the entire
agreement among the parties with respect to the subject matter hereof and
supersedes all prior agreements and understandings, both written and oral, among
the parties, or any of them, with respect thereto.

         Section 7.7. Assignment. Neither this Agreement nor any of the rights,
interests or obligations hereunder shall be assigned by any of the parties
hereto (whether by operation of law or otherwise) without the prior written
consent of the other parties, and any such purported assignment shall be null
and void; provided, however, that either of Parent or Sub may, without the prior
written consent of any Shareholder, assign its rights and obligations to any of
its direct or indirect wholly owned subsidiaries. Subject to the preceding
sentence, this Agreement shall be binding upon, inure to the benefit of and be
enforceable by, the


                                       7
<PAGE>   8
parties and their respective successors and assigns, and the provisions of this
Agreement are not intended to confer upon any person other than the parties
hereto any rights or remedies hereunder.

         Section 7.8. Amendment. This Agreement may not be modified, amended,
altered or supplemented, except upon the execution and delivery of a written
agreement executed by all of the parties hereto; provided that Annex I hereto
may be supplemented by Parent by adding the name and other relevant information
concerning any shareholder of the Company who agrees to be bound by the terms of
this Agreement without the agreement of any other party hereto, and thereafter
such added shareholder shall be treated as a "Shareholder" for all purposes of
this Agreement.

         Section 7.9. Further Assurances. Each Shareholder shall, upon request
of Parent or Sub, execute and deliver any additional documents and take such
further actions as may reasonably be deemed by Parent or Sub to be reasonably
necessary or desirable to consummate, in the most expeditious manner
practicable, the transactions contemplated by this Agreement.

         Section 7.10. No Waiver. The failure of any party hereto to exercise
any right, power, or remedy provided under this agreement or otherwise available
in respect hereof at law or in equity, or to insist upon compliance by any other
party hereto with his or its obligations hereunder, any custom or practice of
the parties at variance with the terms hereof shall not constitute a waiver by
such party of his or its right to exercise any such or other right, power or
remedy or to demand such compliance.

         Section 7.11. Specific Performance. Each of the parties hereto
acknowledges and agrees that in the event of any breach of this Agreement, each
non-breaching party would be irreparably and immediately harmed and could not be
made whole by monetary damages. It is accordingly agreed that the parties hereto
(i) shall waive, in any action for specific performance, the defense of adequacy
of a remedy at law and (ii) shall be entitled, in addition to any other remedy
to which they may be entitled at law or in equity, to compel specific
performance of this Agreement.

         Section 7.12. Governing Law. This Agreement shall be governed by, and
construed in accordance with, the internal laws of the Commonwealth of
Pennsylvania without regard to its conflict of laws principles.

         Section 7.13. Headings. The descriptive headings contained in this
Agreement are included for convenience of reference only and shall not affect in
any way the meaning or interpretation of this Agreement.

         Section 7.14. Counterparts. This Agreement may be executed in one or
more counterparts, each of which shall be deemed an original, but all of which
together shall constitute one and the same instrument.


                                       8
<PAGE>   9
         IN WITNESS WHEREOF, each of Parent and Sub has caused this Agreement to
be executed by its officer thereunto duly authorized and each Shareholder has
caused this Agreement to be executed, or duly executed by an authorized
signatory, as of the date first written above.

                                 EM LABORATORIES, INCORPORATED


                                 By:               /s/ Stephen J. Kunst
                                        ---------------------------------------
                                 Name:      Stephen J. Kunst
                                 Title:     Vice-President and Secretary


                                 EM SUBSIDIARY, INC.


                                 By:               /s/ Dieter Janssen
                                        ---------------------------------------
                                 Name:      Dieter Janssen
                                 Title:     President




                                 By:               /s/ Jerrold B. Harris
                                        ---------------------------------------
                                          Jerrold B. Harris



                                 By:               /s/ N. Stewart Rogers
                                        ---------------------------------------
                                          N. Stewart Rogers


                                       9
<PAGE>   10
                                    ANNEX I



<TABLE>
<CAPTION>
   Shareholder           Shares     Options                 Address
<S>                      <C>        <C>          <C>
                                                 706 Haldane Drive
                                                 Kennett Square, PA 19348, with a copy to
Jerrold B. Harris                                Dinker Biddle & Reath LLP, 1000-Westlakes
                                                 Drive, Berwyn, PA 19312, Attn: Thomas E. Wood,
                                                 Esq.
                                                 4 Lindley Road
                                                 Mercer Island, WA 98040, with a copy to
N. Stewart Rogers                                Richard B. Dodd, Esq., Preston Gates & Ellis
                                                 LLP, 5000 Columbia Seafirst Center, 701 Fifth
                                                 Avenue, Seattle, WA 98104-7078.
</TABLE>



<PAGE>   1
                                                                  EXHIBIT (c)(3)



                              STANDSTILL AGREEMENT


                                 by and between


                                 VWR CORPORATION

                                       and

                           EM INDUSTRIES, INCORPORATED



                                February 27, 1995
<PAGE>   2
                                TABLE OF CONTENTS

<TABLE>
<CAPTION>
                                                                                                                   Page
<S>                                                                                                                <C>
ARTICLE 1. DEFINITIONS...........................................................................................    6

         1.1 Act.................................................................................................    6

         1.2 Affiliate...........................................................................................    6

         1.3 Affiliated Director.................................................................................    7

         1.4 Assignee............................................................................................    7

         1.5 Board...............................................................................................    7

         1.6 Business Day........................................................................................    7

         1.7 Commission..........................................................................................    7

         1.8  Common Share and Warrant Purchase Agreement........................................................    7

         1.9  Common Stock.......................................................................................    7

         1.10 Common Stock Equivalents...........................................................................    7

         1.11  Effective Date....................................................................................    7

         1.12  Exchange Act......................................................................................    7

         1.13  Holder............................................................................................    8

         1.14  Investment Banking Firm...........................................................................    8

         1.15  Market Disposition Program........................................................................    8

         1.16  Notice of Exercise................................................................................    8

         1.17  Notice of Issue...................................................................................    8

         1.18  Notice of Proposed Sale...........................................................................    8

         1.19  Percentage Limitation.............................................................................    8

         1.20  Permitted Percentage..............................................................................    8

         1.21  Person............................................................................................    8
</TABLE>


                                       1
<PAGE>   3
<TABLE>
<S>                                                                                                                <C>
         1.22  Principal Trading Market..........................................................................    8

         1.23  Private Sale......................................................................................    8

         1.24  Purchaser.........................................................................................    8

         1.25  Purchaser Affiliate...............................................................................    9

         1.26  Registrable Securities............................................................................    9

         1.27  Registration Expenses.............................................................................    9

         1.28  Restriction Termination Date......................................................................    9

         1.29  Selling Expenses..................................................................................    9

         1.30  Twenty Day Average................................................................................    9

         1.31  Unaffiliated Director.............................................................................    9

         1.32  Voting Securities.................................................................................    9

         1.33  13D Group.........................................................................................    9

ARTICLE 2. RESTRICTIONS ON ACQUISITION OF ADDITIONAL SHARES BY PURCHASER.........................................    9

         2.1  No Purchases Before Effective Date.................................................................    9

         2.2  No Purchases Beyond Percentage Limitation..........................................................    9

         2.3  Permitted Purchase Due to Increases in Common Stock Equivalents....................................   10

         2.4  Procedures Concerning Purchaser's Acquisition of Shares From Company in Response to
                  Increases in Common Stock Equivalents..........................................................   10

         2.5  Limitation on Purchaser's Right to Purchase Common Stock Pursuant to Section 2.3 in the
                  Event of a Business Acquisition by Company.....................................................   11

         2.6  Permitted Purchase If Company Proposes to Issue Voting Securities for Cash.........................   11

         2.7  Permitted Purchase in Response To Third Party Tender Offer or Exchange Offer.......................   12

         2.8  Permitted Purchase With Board Approval.............................................................   13

         2.9  Permitted Purchase by 100% Tender Offer After Four Years...........................................   13
</TABLE>


                                       2
<PAGE>   4
<TABLE>
<S>                                                                                                                <C>
        2.10  Requirements for Tender Offers ....................................................................   13

        2.11  Mandatory Disposal of Excess Shares ...............................................................   13

        2.12  Monthly Report of Ownership .......................................................................   14

        2.13  General Rule Regarding Acquisition of Voting Securities ...........................................   14

        2.14  Requirements of Trading Exchange or Stock Quotation System ........................................   14

ARTICLE 3. SALES OF SHARES BY PURCHASER AND RELATED RIGHTS AND OBLIGATIONS OF PURCHASER AND COMPANY..............   15

         3.1  General Restrictions on Resale or Other Disposition................................................   15

         3.2  Allowed Sales Pursuant to Registration Rights......................................................   15

         3.3  Allowed Sales Pursuant to Rule 144.................................................................   15

         3.4  Allowed Private Sales to Third Parties or Pursuant to Tender Offer.................................   15

         3.5  Allowed Transfers by EMI and Purchaser Affiliates..................................................   15

         3.6  Allowed Transfers Upon Approved Business Disposition...............................................   15

         3.7  Right of First Refusal.............................................................................   16

         3.8  Procedures for Right of First Refusal..............................................................   16

         3.9  Purchaser's Covenants With Respect to Distribution of Shares.......................................   18

         3.10  Company's Undertaking to Cooperate in Rule 144 Transactions.......................................   18

ARTICLE 4. LEGENDS AND STOP TRANSFER ORDERS......................................................................   18

         4.1  Placement of Legends and Entry of Stop Transfer Orders.............................................   18

         4.2  Removal of Legends and Stop Transfer Orders........................................................   19

ARTICLE 5. CERTAIN AGREEMENTS OF PURCHASER AND COMPANY...........................................................   19

         5.1  Future Actions.....................................................................................   19

         5.2  Acquisitions and Transfers in Contravention of Agreement...........................................   20

         5.3  Company's Issuance of Securities...................................................................   20
</TABLE>


                                       3
<PAGE>   5
<TABLE>
<S>                                                                                                                <C>
ARTICLE 6. BOARD OF DIRECTORS....................................................................................   20

         6.1  Size of Board......................................................................................   20

         6.2  Terms..............................................................................................   20

         6.3  Vacancies..........................................................................................   21

         6.4  Proportional Representation........................................................................   21

ARTICLE 7. REGISTRATION RIGHTS...................................................................................   21

         7.1  Duration of Registration Rights....................................................................   21

         7.2  Demand Registration Covenant.......................................................................   22

         7.3  Participation Registration Covenant................................................................   23

         7.4  Company's Obligations in Connection with Registrations.............................................   23

         7.5  Conditions to Obligations of Company Under Registration Covenants..................................   24

         7.6  Expenses...........................................................................................   26

         7.7  Assignability of Registration Rights...............................................................   26

         7.8  Indemnification....................................................................................   26

ARTICLE 8. TERMINATION...........................................................................................   29

         8.1  Termination........................................................................................   29

         8.2  Extended Cure Period...............................................................................   29

ARTICLE 9. REPRESENTATIONS AND WARRANTIES........................................................................   29

         9.1  Of Company.........................................................................................   29

         9.2  Of EMI.............................................................................................   30

ARTICLE 10. MISCELLANEOUS........................................................................................   30

         10.1  Specific Enforcement..............................................................................   30

         10.2  Severability......................................................................................   31
</TABLE>


                                       4
<PAGE>   6
<TABLE>
<S>                                                                                                                <C>
         10.3  Expenses..........................................................................................   31

         10.4  Assignment; Successors............................................................................   31

         10.5  Amendments........................................................................................   31

         10.6  Notices...........................................................................................   31

         10.7  Attorneys' Fees...................................................................................   32

         10.8  Integration.......................................................................................   32

         10.9  Waivers...........................................................................................   32

         10.10  Governing Law....................................................................................   32

         10.11  Counterparts.....................................................................................   33

         10.12  Cooperation......................................................................................   34

         10.13  Section Headings and Captions....................................................................   34
</TABLE>


                                       5
<PAGE>   7
                              STANDSTILL AGREEMENT


                  THIS STANDSTILL AGREEMENT (the "Agreement") is made this 27th
day of February, 1995, by and between VWR CORPORATION, a Pennsylvania
corporation ("Company") and EM Industries, Incorporated, a New York corporation
("EMI").

                                    RECITALS

                  A. Company and EMI have entered into a Common Share and
Warrant Purchase Agreement pursuant to which, among other things, Company shall
issue and sell to EMI Common Stock (as defined below) of Company and a common
share purchase warrant (the "Warrant").

                  B. The parties seek to regulate the acquisition and
disposition by Purchaser (as defined below) of Company's Voting Securities,
provide for EMI representation on Company's Board, and generally foster a
constructive and mutually beneficial relationship.

                  C. EMI and Company acknowledge that Company has made, prior to
the date hereof, a careful evaluation of Purchaser's investment objectives with
regard to its ownership of Voting Securities, and the compatibility of
Purchaser's management and objectives with the management and objectives of
Company; that such factors were critical to Company in its decision to enter
into this Agreement; that, absent the provisions of Articles 2 through 4 hereof,
Purchaser's ownership of Voting Securities would present an unusual opportunity
for it to gain effective control of Company and Company might have reached a
different decision with regard to entering into this Agreement and the Common
Share and Warrant Purchase Agreement; that, therefore, the provisions of
Articles 2 through 4 were a material inducement to Company to enter into this
Agreement and the Common Share and Warrant Purchase Agreement; and, that the
primary purposes of Articles 2 through 4 are that, so long as such provisions
remain in effect and except as permitted by such provisions, the Voting
Securities owned by Purchaser not come to rest in the hands of any single holder
or group of holders other than Purchaser, and Purchaser's ownership of Voting
Securities not be increased, other than as provided for in this Agreement or
with the consent of Company. EMI acknowledges that such purposes are reasonable
and that the provisions of Articles 2 through 4 are reasonable in view of such
purposes.

                  NOW, THEREFORE, in consideration of the mutual agreements and
covenants set forth herein and in the Common Share and Warrant Purchase
Agreement, and for other good and valuable consideration, the parties agree as
follows:

         ARTICLE 1. DEFINITIONS

                  As used in this Agreement, in addition to other terms defined
elsewhere herein, the following terms have the respective meanings set forth
below:

                  1.1 Act. "Act" means the Securities Act of 1933, as amended.

                  1.2 Affiliate. "Affiliate" means any Person directly or
indirectly controlled by, controlling or under common control with another
Person. For purposes of this definition, "control" means the power to direct the
management or policies of the Person in question.


                                       6
<PAGE>   8
                  1.3 Affiliated Director. "Affiliated Director" means any
member of the Board who has been designated by EMI under Article 6 for
nomination or appointment as a director of Company.

                  1.4 Assignee. See Section 10.4.

                  1.5 Board. "Board" means the Board of Directors of Company as
constituted from time to time.

                  1.6 Business Day. "Business Day" means any Monday through
Friday, inclusive, excluding any such day which is a Federal or Commonwealth of
Pennsylvania holiday.

                  1.7 Commission. "Commission" means the Securities and Exchange
Commission of the United States.

                  1.8 Common Share and Warrant Purchase Agreement. "Common Share
and Warrant Purchase Agreement" means the Common Share and Warrant Purchase
Agreement, dated February 27, 1995, between Company and EMI.

                  1.9 Common Stock. "Common Stock" means the common shares of
Company, par value $1.00 per share or such other par value as may be established
from time to time.

                  1.10 Common Stock Equivalents. "Common Stock Equivalents"
means the sum of the following, determined at any time during the term of this
Agreement: (a) the total number of shares of issued and outstanding Common
Stock, plus (b) the number of shares of Common Stock reserved for issuance
pursuant to stock options granted (but not yet exercised) under Company's stock
option plans, and plus (c) the number of votes which may be cast for the
election of directors (whether directly or by formula) as a result of ownership
of any Voting Securities other than Common Stock; provided, however, the shares
of Common Stock described in (b) above shall not be included in Common Stock
Equivalents until the earlier of (i) the date the options are exercisable, or
(ii) the end of the fiscal year of Company during which such options were
granted; provided, further, that the votes described in (c) above shall not be
included in Common Stock Equivalents until the Voting Securities other than
Common Stock are able to be voted for the election of directors.

                  1.11 Effective Date. "Effective Date" means the date the
acquisition of Common Stock by Purchaser is consummated pursuant to the terms of
the Common Share and Warrant Purchase Agreement.

                  1.12 Exchange Act. "Exchange Act" means the Securities
Exchange Act of 1934, as amended.

                  1.13 Holder. "Holder" means Purchaser and any Person to whom
the registration rights under Article 7 have been transferred in compliance with
Section 7.7.

                  1.14 Investment Banking Firm. "Investment Banking Firm" means
an internationally recognized investment banking firm.

                  1.15  Market Disposition Program.  See Section 3.8(a).


                                       7
<PAGE>   9
                  1.16  Notice of Exercise.  See Section 3.8(b)(iii).

                  1.17  Notice of Issue.  See Section 2.6.

                  1.18  Notice of Proposed Sale.  See Section 3.8(a).

                  1.19  Percentage Limitation.  See Section 2.2.

                  1.20 Permitted Percentage. "Permitted Percentage" means the
Percentage Limitation or, if the percentage of Common Stock Equivalents owned by
Purchaser increases as a consequence of (a) a reduction in the number of
outstanding Voting Securities other than as a result of (1) the expiration of
rights to acquire Common Stock under Company's stock option plans or (2) the
lapse of rights to vote for the election of directors as a result of ownership
of any Voting Securities other than Common Stock, (b) Purchaser's acquisitions
of Voting Securities with Board approval in accordance with Section 2.8, or (c)
Purchaser's acquisitions of Voting Securities in a tender offer permitted by
Section 2.7, following which Company fails to repurchase shares of Voting
Securities in accordance with Section 2.7(b), such greater percentage of Common
Stock Equivalents owned by Purchaser after such reduction, acquisition, or
failure, respectively. The Permitted Percentage shall be reduced from time to
time if, upon the issuance by Company of Common Stock Equivalents, Purchaser
either does not or is not permitted by this Agreement to purchase its full
Permitted Percentage of such issuance.

                  1.21 Person. "Person" means any individual, partnership,
association, corporation, trust, limited liability company or other entity,
including without limitation employee pension, profit sharing, and other benefit
plans and trusts.

                  1.22 Principal Trading Market. "Principal Trading Market"
means the principal trading exchange or national automated stock quotation
system on which the Common Stock is traded or quoted.

                  1.23  Private Sale.  See Section 3.8(a).

                  1.24 Purchaser. "Purchaser" means EMI and Purchaser
Affiliates, jointly and severally.

                  1.25 Purchaser Affiliate. "Purchaser Affiliate" means any
Affiliate of EMI.

                  1.26  Registrable Securities.  See Section 7.1.

                  1.27  Registration Expenses.  See Section 7.6(a).

                  1.28  Restriction Termination Date.  See Section 7.1.

                  1.29  Selling Expenses.  See Section 7.6(a).

                  1.30 Twenty Day Average. "Twenty Day Average" means the
average closing sale price of Common Stock on the Principal Trading Market for
the twenty (20) trading days preceding the earlier of the closing of, or public
announcement date concerning, the issuance of Voting Securities by Company.


                                       8
<PAGE>   10
                  1.31 Unaffiliated Director. "Unaffiliated Director" means a
director on the Board who is not an Affiliated Director.

                  1.32 Voting Securities. "Voting Securities" means Common Stock
and any other Company securities entitled to vote for the election of directors,
or any security (including any preferred stock of Company) convertible into or
exchangeable for or exercisable for the purchase of Common Stock or other
Company securities entitled to vote for the election of directors.

                  1.33 13D Group. "13D Group" means any group of Persons formed
for the purpose of acquiring, holding, voting or disposing of Voting Securities
required under Section 13(d) of the Exchange Act and the rules and regulations
thereunder (as now in effect) to file a statement on Schedule 13D with the
Commission as a "person" within the meaning of Section 13(d)(3) of the Exchange
Act disclosing beneficial ownership of Voting Securities representing more than
5% of any class of Voting Securities.


    ARTICLE 2. RESTRICTIONS ON ACQUISITION OF ADDITIONAL SHARES BY PURCHASER

                  2.1 No Purchases Before Effective Date. Except as provided in
Section 2.7, Purchaser shall not, between the date of execution of this
Agreement and the Effective Date, acquire in any way or hold record or
beneficial ownership of any Voting Securities.

                  2.2 No Purchases Beyond Percentage Limitation. Except as
otherwise permitted herein, Purchaser shall not, directly or indirectly, acquire
any Voting Securities beyond its "Percentage Limitation." The "Percentage
Limitation" shall be 20.1% of the Common Stock Equivalents.

                  2.3 Permitted Purchase Due to Increases in Common Stock
Equivalents. If the Common Stock Equivalents increase at any time and, as a
consequence thereof Purchaser's aggregate ownership of Common Stock Equivalents
falls below the Percentage Limitation, Purchaser may acquire additional shares
of Common Stock up to the Percentage Limitation, as follows:

                           (a) Purchaser may at any time do so by open-market
purchases, partial tender offer, or private transaction; and/or

                           (b) Purchaser may, in accordance with Section 2.4,
purchase unissued or treasury shares of Common Stock from Company.

                  2.4 Procedures Concerning Purchaser's Acquisition of Shares
From Company in Response to Increases in Common Stock Equivalents.

                           (a) Within thirty (30) days after any increase in
Common Stock Equivalents (other than an increase previously notified to EMI
under Section 2.6), Company shall give EMI written notice setting forth the
number of Common Stock Equivalents prior to the increase, the number of Common
Stock Equivalents after the increase, Purchaser's Percentage Limitation, the
number of shares of Common Stock Purchaser may purchase as a consequence of said
increase, and the per share purchase price for such shares.


                                       9
<PAGE>   11
                           (b) The purchase price per share of Common Stock
purchased under Section 2.3(b) shall be established as follows:

                                    (i) if the Common Stock Equivalents
increased as a result of issuance by Company of one or more Voting Securities
(other than issuance of options under Company's stock option plans), the price
per share shall be the lesser of the Twenty Day Average or the aggregate fair
market value of all consideration received by Company for such Voting Securities
as determined in good faith by the Board (including attribution of the
consideration received with respect to each Voting Security other than Common
Stock) within thirty (30) days after the issuance, divided by the number of
Common Stock Equivalents issued by Company; or

                                    (ii) if the Common Stock Equivalents
increased as a result of Company's issuance of stock options under Company's
stock option plans, the purchase price shall be the exercise price of such stock
options.

                           (c) Purchaser shall have the right to purchase from
Company a number of shares of Common Stock equal to its Percentage Limitation
multiplied by the increase in the Common Stock Equivalents. Purchaser shall have
sixty (60) days from receipt of Company's notice pursuant to Section 2.4.(a)
above to notify Company in writing whether it elects to purchase any of such
shares of Common Stock and, if it so elects, the number of shares it elects to
purchase. At the time Purchaser delivers its notice to Company, there shall be a
binding agreement between Purchaser and Company for the purchase and sale of the
number of shares of Common Stock elected by Purchaser. Purchaser shall pay the
purchase price to Company in immediately available funds, and Company shall
deliver certificates representing the shares to Purchaser, on a date specified
by Purchaser in its notice, which date shall not be more than ten (10) days
after Purchaser delivers its notice to Company.

                  2.5 Limitation on Purchaser's Right to Purchase Common Stock
Pursuant to Section 2.3 in the Event of a Business Acquisition by Company.

                           (a) Notwithstanding Section 2.3, Purchaser shall have
no right to purchase additional shares of Common Stock if (i) the Common Stock
Equivalents increased due to issuance by Company of Voting Securities in
connection with Company's acquisition of a business entity from a third party,
(ii) during the one year period following closing of such an acquisition,
Company repurchases a number of shares of Voting Securities equal to or greater
than the number of shares of Common Stock Equivalents issued to the third party,
and (iii) Company's plan to repurchase shares was approved by a majority of the
Board and notice thereof was given to Purchaser prior to the closing of the
acquisition. If Company does not within the one year period repurchase a number
of shares of Voting Securities equal to the number of Common Stock Equivalents
issued to the third party, Purchaser shall have all rights under Section 2.3 to
purchase shares of Common Stock up to its Percentage Limitation. For purposes of
Section 2.4, Company shall give notice to Purchaser in accordance with Section
2.4(a) within thirty (30) days after the end of the one year period, and the
purchase price to be paid by Purchaser to purchase shares from Company shall be
established in accordance with Section 2.4(b)(i) as of the date of the closing
of the business acquisition. Except as modified by the preceding sentence, the
provisions of Section 2.4 shall govern any such purchase.


                                       10
<PAGE>   12
                           (b) The limitation contained in Section 2.5(a) shall
only apply to increases of fifteen percent (15%) or less in the Common Stock
Equivalents. If in connection with an acquisition Company issues Voting
Securities which cause the Common Stock Equivalents to increase more than
fifteen percent (15%), Purchaser shall have all rights under Section 2.3 to
purchase Common Stock in connection with such increase over fifteen percent
(15%).

                  2.6 Permitted Purchase If Company Proposes to Issue Voting
Securities for Cash. If Company proposes to issue Voting Securities solely for
cash pursuant to a registered offering or a private placement, and as a
consequence thereof Purchaser's aggregate ownership of Common Stock Equivalents
would fall below its Percentage Limitation, Company shall give EMI written
notice of such fact (the "Notice of Issue") at least thirty (30) days prior to
the anticipated date of such issuance stating the anticipated number of Common
Stock Equivalents to be issued and the anticipated price per Common Stock
Equivalent. Purchaser shall have the right to purchase from Company the number
of shares of Common Stock required for Purchaser to own in the aggregate the
Percentage Limitation of the Common Stock Equivalents following the issuance of
the shares actually issued in such registered offering or private placement.
Purchaser shall have fifteen (15) days from receipt of the Notice of Issue to
notify Company in writing whether it elects to purchase any of such shares of
Common Stock and, if it so elects, the number of shares it elects to purchase.
At the time Purchaser delivers its election to Company, there shall be a binding
agreement between Purchaser and Company for the purchase and sale of the number
of shares of Common Stock elected by Purchaser, subject to the consummation of
such sale described in the Notice of Issue. The purchase price per share shall
be the price per Common Stock Equivalent at which the Voting Securities are
actually issued by Company; provided, however, that without Purchaser's consent
the purchase price shall not be more than one hundred twenty percent (120%) of
the anticipated price per Common Stock Equivalent set forth in the Notice of
Issue. Purchaser shall pay the purchase price to Company in immediately
available funds, and Company shall deliver certificates representing the shares
of Common Stock to Purchaser, on the date of Company's issuance of the Voting
Securities.

                  2.7 Permitted Purchase in Response To Third Party Tender Offer
or Exchange Offer.

                           (a) If a tender or exchange offer is made by any
Person or 13D Group (other than Purchaser or any Person acting in concert with
Purchaser) to acquire Voting Securities, Purchaser may make a tender offer for
up to an equivalent number of shares of such Voting Securities as are sought to
be purchased by the party making the other tender offer. If Purchaser initiates
a tender offer under this Section 2.7, the tender offer may be on such terms as
Purchaser shall elect and Company agrees that it shall not in any way (whether
by active opposition, Board announcement or otherwise) contest said tender
offer.

                           (b) If, following such a tender offer by Purchaser,
it owns in the aggregate more than the Percentage Limitation of the Common Stock
Equivalents, Company shall have the right, exercisable at any time during the
six month period following completion of Purchaser's tender offer, to demand the
purchase from Purchaser a number of shares of such Voting Securities as will
cause Purchaser to own in the aggregate the Percentage Limitation of


                                       11
<PAGE>   13
the Common Stock Equivalents following such purchase; provided, however, that
Purchaser shall not be obligated to sell any Common Stock Equivalents to Company
pursuant to this Section 2.7 until such time as such sale would not subject
Purchaser to liability under Section 16(b) of the Exchange Act or any other
applicable provision of federal or state law; and, provided further, that
Purchaser shall not be entitled to vote such Common Stock Equivalents between
the time of Company's demand to purchase pursuant to this Section 2.7(b) and
Purchaser's sale of such Common Stock Equivalents. Company shall, within said
six month period, notify EMI in writing whether it elects to purchase any of
such shares and, if it so elects, the number of shares it elects to purchase. At
the time Company delivers its notice to EMI, there shall be a binding agreement
between Purchaser and Company for the purchase and sale of the number of shares
of such Voting Securities elected by Company.

                           (c) The purchase price per share shall be the price
per share paid by Purchaser in such tender offer to the tendering shareholders.
In addition, Company shall reimburse Purchaser for Purchaser's pro-rata share of
the costs and expenses incurred in conducting said tender offer. The pro-rata
share of costs and expenses shall be the aggregate of all costs and expenses
(including Purchaser's cost of borrowing, not to exceed the lesser of the prime
interest rate plus 1% and Company's then-current cost of borrowing) actually
incurred by Purchaser, divided by the number of shares of Voting Securities
acquired by it in the tender offer. Company shall pay the purchase price and the
costs and expenses described in this paragraph to Purchaser in immediately
available funds, and Purchaser shall deliver certificates representing the
shares to Company, on a date specified by Company in its notice, which date
shall not be more than twenty (20) days after Company delivers its notice to
EMI.

                           (d) If Company's purchase is subject to or is
voluntarily submitted for shareholder approval, Purchaser shall vote all its
Voting Securities in favor of the purchase.

                           (e) If Company does not elect to purchase shares from
Purchaser, or elects to purchase only a portion of the shares under Section
2.7(b), Purchaser shall be entitled to retain the shares over the Percentage
Limitation but the Percentage Limitation shall remain 20.1%.

                  2.8 Permitted Purchase With Board Approval. Notwithstanding
any other provision of this Agreement, Purchaser may purchase additional shares
of Voting Securities at any time, if two thirds (2/3) of the Unaffiliated
Directors approve such purchase in advance.

                  2.9 Permitted Purchase by 100% Tender Offer After Four Years.
Notwithstanding any other provision of this Agreement, commencing on the fourth
anniversary of the Effective Date, Purchaser shall have the right to acquire
additional shares of Common Stock by means of a tender offer in accordance with
Section 2.10 below.

                  2.10 Requirements for Tender Offers.

                           (a) Whenever Purchaser shall make a tender offer for
shares of Common Stock under Section 2.9, Purchaser may not close the
acquisition of the tendered shares unless all of the following requirements have
been satisfied:

                                    (i) Purchaser's offer shall have been made
to all holders of Common Stock;


                                       12
<PAGE>   14
                                    (ii) Purchaser shall offer to purchase for
cash all shares tendered; and

                                    (iii) Purchaser's offer shall have been
accepted by shareholders owning not less than two-thirds (2/3) of the
outstanding Common Stock.

                           (b) With respect to calculating whether Purchaser's
offer has been accepted by shareholders owning two-thirds (2/3) of the
outstanding Common Stock, Common Shares beneficially owned by Purchaser shall be
excluded from the outstanding Common Stock.

                  2.11 Mandatory Disposal of Excess Shares. If in violation of
any provision of this Article 2 Purchaser shall at any time hold in the
aggregate in excess of its then Permitted Percentage, Purchaser shall be
required to dispose of such excess shares by promptly selling, subject to
Company's right of first refusal under Section 3.7, sufficient Voting Securities
so that after such sale Purchaser shall own in the aggregate not more than its
then Permitted Percentage, provided, however, that Purchaser shall not be
obligated to sell any Voting Securities to Company pursuant to this Section 2.11
until such time as such sale would not subject Purchaser to liability under
Section 16(b) of the Exchange Act or any other applicable provision of federal
or state law; and, provided further, that Purchaser shall not be entitled to
vote such Voting Securities between the time of Company's demand that Purchaser
dispose of such Voting Securities pursuant to this Section 2.11 and Purchaser's
disposal of such Voting Securities. If Purchaser fails to dispose of shares of
Voting Securities within one hundred eighty (180) days after receipt of notice
from Company advising EMI of its obligation so to dispose of shares (it being
understood that giving of notice by Company is not a precondition to Purchaser's
obligation to dispose of excess shares), Company shall have the right to redeem
at par value from Purchaser a number of shares of Common Stock so that after
such redemption the shares of Voting Securities owned by Purchaser do not exceed
Purchaser's then Permitted Percentage. Any Voting Securities held by Purchaser
in contravention of this Section 2.11 may not be voted in any manner on which
shareholders of Company are entitled to vote and Company shall not be required
to count any such votes, if cast, in determining the result of shareholder
voting on any matter.

                  2.12 Monthly Report of Ownership. During the term of this
Agreement, Purchaser will furnish to Company, within ten (10) days after the end
of each calendar month in which Purchaser acquires or disposes of any Voting
Securities, a statement showing the number of shares of Voting Securities
acquired or disposed of during the just ended month and the aggregate number of
shares of Voting Securities held by Purchaser at the end of such month. To the
extent that any such acquisition or disposition must be reported to the
Commission, Purchaser may fulfill the statement requirement in this Section 2.12
by providing to Company a copy of such report to the Commission.

                  2.13 General Rule Regarding Acquisition of Voting Securities.
Purchaser agrees that any and all acquisitions of Voting Securities shall be
made in compliance with all applicable federal and state securities laws. EMI
agrees to indemnify, defend and hold harmless Company, its officers, directors
and employees from and against any and all losses, claims, liabilities,
assertions and expenses incurred or suffered by any of them, including
attorneys' fees and costs


                                       13
<PAGE>   15
of litigation, as a consequence of a claim by any party other than Company or
any of its Affiliates that Purchaser breached its obligations set forth in the
preceding sentence.

                  2.14 Requirements of Trading Exchange or Stock Quotation
System.

                  Notwithstanding any other provision of this Agreement, if, by
reason of the listing or other requirements of the principal trading exchange or
national automated stock quotation system on which the Company's Common Stock is
then traded or quoted, the issuance by Company of any additional Voting
Securities to Purchaser pursuant to this Article 2 requires approval of
Company's shareholders, then Company's obligation to issue and sell such
additional Voting Securities to Purchaser shall be subject to receipt of such
shareholder approval, which Company shall use its best efforts to obtain as soon
as possible after the date on which Purchaser shall otherwise become entitled to
purchase such additional Voting Securities from Company pursuant to this Article
2.


        ARTICLE 3.  SALES OF SHARES BY PURCHASER AND RELATED RIGHTS AND
                    OBLIGATIONS OF PURCHASER AND COMPANY

                  3.1 General Restrictions on Resale or Other Disposition.
During the term of this Agreement, Purchaser shall not sell, transfer any
beneficial interest in, pledge, hypothecate or otherwise dispose of any Voting
Securities except in compliance with Article 3.

                  3.2 Allowed Sales Pursuant to Registration Rights. Subject to
Company's right of first refusal under Section 3.7, Purchaser may at any time
sell Common Stock by means of an offering made pursuant to the registration
rights set forth in Article 7 below.

                  3.3 Allowed Sales Pursuant to Rule 144. Subject to Company's
right of first refusal under Section 3.7, Purchaser may at any time sell Common
Stock pursuant to Rule 144 of the General Rules and Regulations under the Act,
provided that Purchaser shall notify Company at least two Business Days prior to
the date of entering any sale or transfer order of Common Stock pursuant to Rule
144, and provided further that, if Company shall thereupon notify EMI of the
pendency of its public offering of any Voting Securities, Purchaser shall not
effect any sales under Rule 144 within 10 days prior to the commencement of or
during such offering.

                  3.4 Allowed Private Sales to Third Parties or Pursuant to
Tender Offer. Subject to Company's right of first refusal under Section 3.7,
Purchaser may at any time make private sales of Voting Securities to a third
person, including sales pursuant to a tender offer or exchange offer.

                  3.5 Allowed Transfers by EMI and Purchaser Affiliates. EMI and
Purchaser Affiliates may at any time transfer Voting Securities among
themselves, provided that such transfer would have no clear, adverse impact of a
financial character on Company, and would not adversely affect the liabilities
and/or responsibilities of EMI to Company, provided that the transferee shall
agree in advance in writing to be bound by the terms of this Agreement.

                  3.6 Allowed Transfers Upon Approved Business Disposition.
Purchaser may dispose of Voting Securities in conjunction with a merger or
consolidation in which Company is


                                       14
<PAGE>   16
acquired, or in conjunction with a sale of all or substantially all of Company's
assets, provided a majority of the Board approved such merger, consolidation, or
sale.

                  3.7 Right of First Refusal. If during the term of this
Agreement, Purchaser desires to sell all or part of its Voting Securities
pursuant to Section 2.11, 3.2, 3.3 or 3.4, Company shall have a right of first
refusal to purchase said Voting Securities in accordance with the procedures set
forth in Section 3.8 below.

                  3.8 Procedures for Right of First Refusal.

                           (a) If Purchaser desires to sell a third party all or
part of its Voting Securities pursuant to Section 3.4 above ("Private Sale"), or
if Purchaser desires to sell all or part of its Common Stock in the open market
pursuant to Section 3.2 or 3.3 above ("Market Disposition Program"), Purchaser
shall transmit to Company a written notice ("Notice of Proposed Sale") setting
forth:

                                    (i) if a Private Sale, (A) as to each Person
to whom such sale is proposed to be made: (1) the name, address and principal
business activity of such Person; (2) the number of shares of Voting Securities
proposed to be sold to such Person; (3) the manner in which the sale is proposed
to be made; and (4) the price at which or other consideration for which, and the
material terms upon which, such sale is proposed to be made, and (B)
representing that the Private Sale is bona fide; and

                                    (ii) if sales pursuant to a Market
Disposition Program: (A) the approximate date the sales are scheduled to
commence; and (B) the amount of Common Stock sought to be disposed of.

                           (b) Upon receipt of the Notice of Proposed Sale
Company shall have an option to purchase, in the case of a Private Sale, all but
not less than all of the Voting Securities proposed to be sold, and in the case
of a Market Disposition Program, all, if the Market Disposition Program is a
firm commitment public offering, or, if it is not such an offering, any part, of
the Common Stock proposed to be disposed of, on the following terms and
conditions;

                                    (i) If the option arises in connection with
a Private Sale, the purchase price shall be the price specified in the Notice of
Proposed Sale.

                                    (ii) If the option arises in connection with
a Market Disposition Program, the purchase price per share of Common Stock shall
be the Twenty Day Average determined as if the day Purchaser delivers the Notice
of Proposed Sale to Company is the closing date of an issuance of securities by
Company in the absence of any public announcement.

                                    (iii) If a majority of the Unaffiliated
Directors determine to exercise the option, they shall direct Company to send a
written notice (the "Notice of Exercise") to EMI within thirty (30) days after
the Notice of Proposed Sale is received by Company specifying the number of
shares Company is purchasing; provided, however, that in the case of a tender
offer or exchange offer, EMI must receive the Notice of Exercise not less than
forty-eight (48) hours prior to the earlier of (A) the expiration of the tender
offer or exchange offer or (B)


                                       15
<PAGE>   17
any date after which shares tendered may be treated less favorably than shares
tendered prior thereto. If approval of such purchase by Company's shareholders
is required by law or Company's Restated Articles of Incorporation, and if the
Private Sale is in response to a tender offer, Company shall waive its right of
first refusal granted under Section 3.7; otherwise, Company's Notice of Exercise
shall be subject to receipt of such shareholder approval, which Company shall
use its best efforts to obtain as soon as possible, and in any event within one
hundred twenty (120) days after, the date of the Notice of Exercise. Company's
failure to obtain shareholder approval within the one hundred twenty (120) day
period shall give Purchaser the right to proceed with the proposed sale under
Section 3.8(c). If such repurchase is subject to shareholder approval, Purchaser
shall vote all its Voting Securities in favor of the purchase.

                                    (iv) Upon EMI's receipt of the Notice of
Exercise, there shall be a binding agreement between Purchaser and Company for
the purchase and sale of the number of shares contained in the Notice of
Exercise. The closing of the purchase and sale shall occur on the thirtieth
Business Day following EMI's receipt of the Notice of Exercise. At the closing
Purchaser will deliver to Company certificates for the Voting Securities to be
sold, duly endorsed for transfer or accompanied by a duly executed stock power,
and Company will deliver to Purchaser the purchase price as follows: if
Company's purchase is following Purchaser's proposed Private Sale, Company shall
pay Purchaser the price specified in the Notice of Proposed Sale in the same
manner (and the sale shall be upon the same terms) specified therein, and if
Company's purchase is following Purchaser's proposed Market Disposition Program,
Company shall pay Purchaser at the closing for the shares purchased in
immediately available funds; provided, however, that if Company receives a
Notice of Proposed Sale on or before the third anniversary of the Effective
Date, Company shall have the option to pay Purchaser by delivery at the closing
of ten (10%) percent of the purchase price in immediately available funds, and
the balance by delivery of a promissory note providing terms specified in the
next succeeding sentence; provided, further, that notwithstanding the preceding
proviso, if the Notice of Proposed Sale received by Company on or before the
third anniversary describes a proposed Private Sale in response to a tender
offer, Company shall pay the purchase price in the same manner (and the sale
shall be upon the same terms) specified in the Notice of Proposed Sale. The
promissory note shall provide for: fixed interest at a rate equal to the
Company's then-current cost of borrowing; equal annual installments including
interest payable on each anniversary of the closing in immediately available
funds, with each installment in an amount sufficient to amortize the promissory
note in ten annual payments; and for the entire unpaid balance including accrued
and unpaid interest to be payable on the fifth anniversary of the closing.

                                    (v) Company may assign its right to purchase
the Voting Securities and may designate in the Notice of Exercise one or more
Persons to take title to all or any part of the Voting Securities, but this
shall not relieve Company of its obligation to pay the purchase price.

                           (c) If following receipt of a Notice of Proposed Sale
Company fails to give EMI a Notice of Exercise within the prescribed time
period, Purchaser shall be free to effect such sale on the following terms and
conditions:


                                       16
<PAGE>   18
                                    (i) if a Private Sale was proposed,
Purchaser may effect such sale at any time during the period ending one hundred
twenty (120) days after the date Company's Notice of Exercise was required to be
given, to the Person or Persons specified in the Notice of Proposed Sale for the
consideration and on the terms specified in said notice; and

                                    (ii) if a Market Disposition Program was
proposed, Purchaser may effect such sales at any time during the period ending
one hundred eighty (180) days after the date Company's Notice of Exercise
required to be given.


                           (d) If Purchaser does not make the sales within the
time periods provided above, the Voting Securities so proposed to be sold will
once again become subject to this Agreement to the same extent as if such sales
had not been proposed.

                  3.9 Purchaser's Covenants With Respect to Distribution of
Shares. In any transaction or transactions under Section 3.2 or 3.3, Purchaser
shall use its reasonable best efforts, and shall cause any underwriter involved
to use its reasonable best efforts, to sell the Common Stock in the United
States and in a manner which will effect the broadest distribution reasonably
possible, with no sales to any one person or group (as defined in the Exchange
Act) in excess of 10% of the Common Stock sold in such sale.

                  3.10 Company's Undertaking to Cooperate in Rule 144
Transactions. In the event of any proposed sales of Common Stock by Purchaser
under Section 3.3, Company shall cooperate with Purchaser to enable such sales
to be made in accordance with applicable laws, rules and regulations, the
requirements of Company's transfer agent, and the reasonable requirements of the
broker through which the sales are proposed to be executed, and shall, upon
request, furnish unlegended certificates representing Common Stock in such
numbers and denominations as Purchaser shall reasonably require for delivery in
connection with such sales.


         ARTICLE 4. LEGENDS AND STOP TRANSFER ORDERS

                  4.1 Placement of Legends and Entry of Stop Transfer Orders.
Purchaser agrees:

                           (a) that, within ten (10) Business Days after its
acquisition of any certificates evidencing Voting Securities (or, in the case of
Voting Securities currently owned by Purchaser, within ten (10) Business Days
after the date hereof) to submit such certificates to Company for placing on the
face thereof the following legends:

                  "THE SHARES REPRESENTED BY THIS CERTIFICATE HAVE NOT BEEN
                  REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED, OR
                  ANY APPLICABLE STATE SECURITIES LAW AND ARE SUBJECT TO THE
                  RESTRICTIONS ON DISPOSITION SET FORTH IN AND TO THE OTHER
                  PROVISIONS OF A COMMON SHARE AND WARRANTY PURCHASE AGREEMENT,
                  DATED FEBRUARY 27, 1995, BETWEEN VWR CORPORATION AND EM
                  INDUSTRIES, INCORPORATED, AND A STANDSTILL AGREEMENT, DATED
                  FEBRUARY 27, 1995, BETWEEN VWR CORPORATION AND EM INDUSTRIES,
                  INCORPORATED. COPIES


                                       17
<PAGE>   19
                  OF SUCH AGREEMENTS ARE ON FILE AT THE RESPECTIVE OFFICES OF
                  VWR CORPORATION AND EM INDUSTRIES INCORPORATED.";

     and such additional legends designed to ensure compliance with Federal and
     State laws as counsel for Company may reasonably request; and

                           (b) to the entry of stop transfer orders with the
transfer agents of any such Voting Securities, against the transfer of such
legended certificates except in compliance with this Agreement.

                  4.2 Removal of Legends and Stop Transfer Orders. Company
agrees that it will, upon receipt of an opinion from its counsel that it is
appropriate so to do and upon the presentation to its transfer agent of the
certificates containing the legends provided for in Section 4.1(a), remove such
legends and withdraw the stop transfer orders provided for in Section 4.1(b)
with respect to such certificates, upon the earlier of the following:

                           (a) any sale of the shares represented by such
certificates made under Section 3.2, 3.3, or 3.4; or

                           (b) termination of this Agreement.


         ARTICLE 5. CERTAIN AGREEMENTS OF PURCHASER AND COMPANY

                  5.1 Future Actions. Purchaser shall not, unless the prior
written consent of the Board (in which a majority of the Unaffiliated Directors
shall concur) has been obtained, and then only to the extent express written
consent has been obtained:

                           (a) at any time before the expiration of four (4)
years after the Effective Date, solicit proxies or become a "participant" in a
"solicitation" (as such terms are defined in Regulation 14A under the Exchange
Act) in opposition to the recommendation of the majority of the directors on the
Board with respect to any matter; or

                           (b) deposit any Voting Securities in a voting trust
or subject them to a voting agreement or other arrangement of similar effect;
provided, however, that nothing in this Section 5.1 shall preclude Purchaser
from so depositing any Voting Securities if such trust, agreement or arrangement
is, and continues to be during the term of this Agreement, solely by and among
EMI and Purchaser Affiliates; or

                           (c) join a partnership, limited partnership,
syndicate or other group for the purpose of acquiring, holding or disposing of
Voting Securities within the meaning of Section 13(d) of the Exchange Act; or

                           (d) induce or attempt to induce any other Person to
initiate a tender offer for any securities of Company, or to effect any change
of control of Company, or take any action for the purpose of convening a
stockholders' meeting of Company; or

                           (e) acquire, by purchase or otherwise, more than 1%
of any class of equity securities of any entity which, prior to the time
Purchaser acquires more than 1% of such class, is publicly disclosed (by filing
with the Commission or otherwise) to be the beneficial


                                       18
<PAGE>   20
owner of more than 5% of any class of the Voting Securities; if Purchaser owns
in the aggregate in excess of 1% of any such entity, it shall promptly divest
such excess; provided, however, that Purchaser shall not be obligated to divest
itself of such excess pursuant to this Section 5.1(e) until such time as such
divestment would not subject Purchaser to liability under Section 16(b) of the
Exchange Act or any other applicable provision of federal or state law; and,
provided further, that Purchaser shall not be entitled to vote such Voting
Securities until Purchaser shall divest itself of such excess; and, provided
further, that upon being notified by Company in writing that an entity owns in
excess of 5% of any class of the Voting Securities, Purchaser shall affirm in
writing to Company that Purchaser does not own, in the aggregate, more than 1%
of any class of equity securities of such Person.

                  5.2 Acquisitions and Transfers in Contravention of Agreement.
Notwithstanding Company's rights to seek injunctions or other relief, any Voting
Securities acquired or transferred by Purchaser in contravention of this
Agreement may not be voted on any matter on which shareholders of Company are
entitled to vote, any attempt to vote such Voting Securities shall be a breach
of this Agreement and Company shall not be required to count any such votes, if
cast, in determining the result of shareholder voting on any matter.

                  5.3 Company's Issuance of Securities. During the term of this
Agreement, Company shall not issue any security (including without limitation
any Voting Security) which provides the holder(s) thereof with any extraordinary
or special voting rights or any right to veto any action of Company, unless such
issuance is approved in advance by an Affiliated Director. Further, Company
shall not consider or approve any such issuance prior to the Effective Date.


         ARTICLE 6. BOARD OF DIRECTORS

                  6.1 Size of Board. On or before the Effective Date, Company
shall take all requisite action to increase the size of the Board by two to
eleven and to appoint, effective as of the Effective Date, individuals
designated by EMI to fill the two new seats.

                  6.2 Terms. EMI shall advise company on or before the Effective
Date which of the Affiliated Directors shall have a term expiring at the second
annual meeting of shareholders of Company next following the Effective Date, and
which shall have a term expiring at the third such annual meeting. After the
term of any Affiliated Director expires, his or her successor shall serve a term
of three (3) years as provided in the Restated Articles of Incorporation of
Company.

                  6.3 Vacancies. In the event of the death, resignation,
retirement, disqualification or removal from office of any Affiliated Director
for any reason, EMI shall have the right to designate a replacement for such
Affiliated Director, or fill such vacancy, to the extent EMI would be entitled
to designate a nominee for election to the Board of Directors pursuant to
Section 6.4 hereof if directors were to be elected at an annual meeting
occurring at such date.

                  6.4  Proportional Representation.

                           (a) Company shall annually cause representatives
designated by EMI to be nominated for election to the Board so as to provide
Purchaser with that percentage


                                       19
<PAGE>   21
representation on the Board, rounded down to the nearest whole number, as shall
equal the Permitted Percentage applicable at the time of each annual nomination.
With respect to committees of the Board, Purchaser shall be entitled to be
represented on any committee with respect to which EMI requests representation.

                           (b) Purchaser shall vote its shares of Common Stock
so as to elect to the Board its proportionate number of Affiliated Directors and
the persons who have been designated by the Unaffiliated Directors, and in all
other matters so as to provide other Company shareholders with corresponding
proportionate representation. If, pursuant to the Restated Articles of
Incorporation of Company, cumulative voting for the election of Company
directors is required, Purchaser may initially vote its shares to ensure that
its then proportionate number of Affiliated Directors are elected. Purchaser
agrees that, once its proportionate number of Affiliated Directors are elected,
Purchaser shall vote its shares of Common Stock so as to elect persons to the
Board who have been designated by the Unaffiliated Directors.

                           (c) Subject to the provisions of Section 6.3, Company
may effect changes in Board representation by increase in the size of the Board
or by resignations or retirements of Board members. Notwithstanding the
foregoing, Purchaser's right to proportional Board representation shall not
cause the number of Affiliated Directors to (i) decrease during the one year
period during which Company has the right to purchase Voting Securities under
Section 2.5(a), or (ii) increase during the six month period during which
Company has the right to purchase Voting Securities under Section 2.7(b).


         ARTICLE 7. REGISTRATION RIGHTS

                  7.1 Duration of Registration Rights. Purchaser's rights to
have Company register shares of Registrable Securities (as defined below)
provided in this Article 7 shall terminate upon the Restriction Termination Date
(as defined below). Rights of a Holder other than Purchaser to have Company
register shares of Registrable Securities provided in this Article 7 shall
terminate upon the Restriction Termination Date. As used in this Article 7,
"Registrable Securities" shall mean all Common Stock so long as certificates
representing the same are required to bear the restrictive legend set forth in
Section 4.1 hereof, to the extent that such legend refers to registration under
the Act. As used in this Article 7, "Restriction Termination Date" shall mean,
with respect to any Registrable Securities, the earliest of (i) the date that
such Registrable Securities shall have been Registered and sold or otherwise
disposed of in accordance with the intended method of distribution by the seller
or sellers thereof set forth in the Registration Statement covering such
Registrable Securities or transferred in compliance with Rule 144 under the
Securities Act and (ii) the date that an opinion of counsel to Company, which
opinion of counsel shall be reasonably acceptable to Purchaser, containing
reasonable assumptions shall have been rendered and, based upon such opinion,
the legend referred to in Section 4.1 hereof, to the extent that such legend
refers to registration under the Act, shall have been removed.

                  7.2  Demand Registration Covenant.

                           (a) If a Holder requests in writing that Company
register under the Act any Registrable Securities then owned by Holder, Company
will use its best efforts to cause the


                                       20
<PAGE>   22
offering and sale to be registered as soon as reasonably practicable. In
connection therewith Company shall prepare and file a registration statement
under the Act on such form as Company shall determine to be appropriate;
provided, however, that Company shall not be obligated to file more than one
registration statement pursuant to this Section 7.2 during any 12-month period.
The request shall specify the amount of Registrable Securities intended to be
offered and sold, shall express Holder's present intent to offer such
Registrable Securities for distribution, shall describe the nature or method of
the proposed offer and sale, and shall contain the undertaking of Holder to
comply with all applicable requirements of this Article 7.

                           (b) Upon receipt of a request for registration under
Section 7.2, Company will promptly give notice to all Holders other than those
initiating the request and provide a reasonable opportunity for such Holders to
participate in such registration. Any such other Holder must notify Company in
writing of its desire to participate, within thirty (30) days of receipt of
Company's notice.

                           (c) Any request for registration under Section 7.2
must be for a firm commitment public offering to be managed by one or more
Investment Banking Firms selected by the Holders requesting registration,
provided that such Investment Banking Firms are reasonably satisfactory to
Company. If, in the written opinion of the Investment Banking Firms marketing
factors require a limitation of the number of shares to be underwritten, and if
the total amount of securities that all Holders (initiating and non-initiating)
request pursuant to Section 7.2 to be included in such offering exceeds the
amount of securities that the Investment Banking Firms reasonably believe
compatible with the success of the offering, Company shall only be required to
include in the offering the amount of Registrable Securities that the Investment
Banking Firms believe will not jeopardize the success of the offering, and such
amount shall be allocated among such Holders in proportion to the respective
amounts of Registrable Securities proposed to be sold by each of the Holders.
Any shares of Registrable Securities that are so excluded from the underwriting
shall be excluded from the registration.

                           (d) Subject to the provisions of Section 7.2(a) and
7.2(b), if within forty-five (45) days after receipt of a request under Section
7.2(a) and any requests under Section 7.2(b), Company shall have obtained (i)
from Commission a "no-action" letter, in form and substance reasonably
satisfactory to the counsel of the Holders requesting registration, in which the
Commission has indicated that it will take no action if, without registration
under the Act, Holders dispose of the Registrable Securities covered by the
request(s) in the manner proposed or (ii) any opinion of its counsel (concurred
in by counsel for the requesting Holder(s)) that no registration under the Act
is required, Company need not comply with such request or request(s); provided,
however, that receipt of such "no-action" letter or opinion shall not constitute
a registration for the purpose of determining Company's obligations to Holders
under Section 7.2; and provided, further, that in such event counsel for Company
shall opine that, whether by reason of the "no-action" letter or otherwise, the
removal of any legend from certificates representing all shares to which such
"no-action" letter or opinion refers is permissible, and, if so, Company shall
remove from such certificates all legends no longer required and shall rescind
any stop-transfer instructions previously communicated to its transfer agent
relating to such certificates.


                                       21
<PAGE>   23
                  7.3 Participation Registration Covenant. If Company shall
propose registration under the Act of an offering of Common Stock, Company shall
give prompt written notice of such fact to each Holder and will use all
reasonable efforts to cause the registration of such number of shares of Common
Stock then owned by Holders as Holders shall request, within fifteen (15) days
after receipt of such notice, to be included, upon the same terms (including the
method of distribution) of any such offering; provided, however, that (a)
Company shall not be required to give notice or include such Common Stock in any
such registration if the proposed registration (i) is not a primary registration
of securities by Company for its own account, or (ii) is primarily (A) a
registration of a stock option or compensation plan or of securities issued or
issuable pursuant to any such plan, or (B) a registration of securities proposed
to be issued in exchange for securities or assets of, or in connection with a
merger or consolidation with, another corporation; (b) the offering of Common
Stock by Holders shall comply with Section 3.9 above; and (c) Company may, in
its sole discretion and without the consent of the Holders, withdraw such
registration statement and abandon the proposed offering.

                  7.4 Company's Obligations in Connection with Registrations. In
connection with any registration of Registrable Securities undertaken by Company
under Article 7, Company shall:

                           (a) furnish to Holders or their underwriter such
copies of any prospectus (including any preliminary prospectus) Holders may
reasonably request to effect the offering and sale, but only while Company is
required under the provisions hereof to cause the registration statement to
remain current and effective;

                           (b) use its best efforts to qualify the offering
under applicable Blue Sky or other state securities laws to enable Holders to
offer and sell the Registrable Securities; provided, however, that Company shall
not be obligated to qualify as a foreign corporation to do business under the
laws of any jurisdiction in which it is not then qualified;

                           (c) furnish Holders, at the expense of Company, with
unlegended certificates representing ownership of the Registrable Securities
being sold in such numbers and denominations as Holders shall reasonably
request, meeting the requirements of the Principal Trading Market;

                           (d) use its best efforts to cause the registration
statement to remain current and effective for sixty (60) days following its
effective date or such lesser period as the underwriters may agree; and

                           (e) instruct the transfer agent(s) and the
registrar(s) of Company's securities to release the stop transfer orders with
respect to the Registrable Securities being sold.

                           (f) Company will promptly prepare and file with the
Commission such amendments and prospectus supplements, including post-effective
amendments, to the Registration Statement as Company determines may be necessary
or appropriate, and use its best efforts to have such post-effective amendments
declared effective as promptly as practicable; cause the related prospectus to
be supplemented by any prospectus supplement, and as so supplemented, to be
filed with the Commission; and notify the Holders of any securities included in
such Registration Statement and the underwriter thereof, if any, promptly when a
prospectus,


                                       22
<PAGE>   24
any prospectus supplement or post-effective amendment must be filed or has been
filed and, with respect to any post-effective amendment, when the same has
become effective, and make the same available to such Holders and any
underwriter.

                           (g) Company will furnish to each Holder and the
underwriter thereof, if any, a signed counterpart, addressed to each Holder and
underwriter, of (i) an opinion or opinions of counsel to Company and (ii) a
comfort letter or comfort letters from Company's independent public accountants,
each in customary form and covering such matters of the type customarily covered
by opinions or comfort letters, as the case may be, as Holders or the
underwriter may reasonably request.

                           (h) Company will make generally available to its
securityholders, as soon as reasonably practicable, an earning statement
covering a period of 12 months, beginning three months after the effective date
of the Registration Statement, which earning statement shall satisfy the
provisions of Section 11(a) of the Securities Act.

                           (i) Company will use its best efforts to cause all
such Registrable Securities to be listed in the Principal Trading Market, and on
each securities exchange on which similar securities issued by Company are then
listed.

                  7.5 Conditions to Obligations of Company Under Registration
Covenants. Company's obligations to register the Registrable Securities owned by
Holders under Article 7 are subject to the following conditions.

                           (a) Company (upon the decision of a majority of the
Unaffiliated Directors) shall be entitled to postpone for up to ninety (90) days
the filing of any registration statement under Section 7.2, if at the time it
receives the request for registration such Unaffiliated Directors determine, in
their reasonable judgment, that such registration and offering would materially
interfere with any financing, acquisition, corporate reorganization or other
material transaction involving Company or any of its Affiliates. Company shall
promptly give Holders written notice of such determination.

                           (b) Company may require that the number of shares of
Registrable Securities offered for sale by Holders pursuant to a request for
registration under Section 7.3 be decreased or excluded entirely if, in the
opinion of Company's Investment Banking Firm, such reduction is desirable to
permit the orderly distribution and sale of the securities being offered. If
Company shall require such a reduction, Holders shall have the right to withdraw
from the offering.

                           (c) If Holders request registration pursuant to
Section 7.2, Company will enter into an underwriting agreement containing
representations, warranties and agreements not materially different from those
customarily included in underwriting agreements with an issuer for a secondary
distribution; provided, however, that Company will not be obligated to indemnify
the Investment Banking Firms on terms materially different from those set forth
in Section 7.8:


                                       23
<PAGE>   25
                           (d) Company may require, as a condition to fulfilling
its obligations under the registration covenants in Sections 7.2 and 7.3, the
indemnification agreements provided in Section 7.8(b) from Holders and the
underwriters.

                           (e) It shall be a condition precedent to the
obligations of Company to take action pursuant to this Article 7 that each
Holder whose Registrable Securities are being registered, and each underwriter
designated by such Holder, will furnish to Company such information and
materials as Company may reasonably request and as shall be required in
connection with the action to be taken by Company. To the extent possible
Holders shall provide Company with any information and materials required to
obtain acceleration of the effective date of the registration statement.

                           (f) If, in the reasonable opinion of counsel to
Company it is necessary or appropriate for Company to comply with any applicable
rule, regulation, or release promulgated by the Commission, each Holder whose
Registrable Securities are being registered and any underwriter participating in
such public offering shall execute and deliver to Company an appropriate
agreement, in form satisfactory to counsel for Company, that such Holder or
underwriter will comply with all prospectus delivery requirements of the Act and
with all anti-stabilization, manipulation, and similar provisions of Section 10
of the Exchange Act and any rules issued thereunder by the Commission, and will
furnish to Company information about sales made in such public offering.

                           (g) Holders of Common stock included in the
registration statement shall not (until further notice) effect sales thereof
after receipt of written notice (which may include notice by telegraph) from
Company to suspend sales, to permit Company to correct or update a registration
statement or prospectus; provided, however, that the obligations of Company with
respect to maintaining any registration statement current and effective shall be
extended by a period of days equal to the period such suspension is in effect.

                           (h) At the end of the period during which Company is
obligated to keep any registration statement current and effective (and any
extensions thereof required by the preceding paragraph), and upon receipt of
notice from Company of its intention to remove from registration the securities
covered by such registration statement that remain unsold, Holders of
Registrable Securities included in the registration statement shall discontinue
sales of such Registrable Securities pursuant to such registration statement,
and each such Holder shall notify Company of the number of shares registered
belonging to such Holder that remain unsold promptly following receipt of such
notice from Company.

                  7.6  Expenses.

                           (a) In connection with any registration pursuant to
Section 7.2, all Registration Expenses (as defined below) shall be borne fifty
percent (50%) by Company and fifty percent (50%) by Holders of the Registrable
Securities on the basis of the number of shares registered by them, and all
Selling Expenses (as defined below) shall be borne by Holders of the Registrable
Securities on the basis of the number of shares registered by them. As used in
this Section 7.6, "Registration Expenses" shall mean all expenses incurred by
Company in complying with this Article 7, including, without limitation, all
federal and state registration, qualification


                                       24
<PAGE>   26
and filing fees, printing expenses, fees and disbursements of counsel for
Company, Blue Sky fees and expenses, and the expense of any special audits
incident to or required by such registration. As used in this Section 7.6,
"Selling Expenses" shall mean all underwriting discounts and selling commissions
applicable to the sale of Registrable Securities pursuant to this Agreement and
all fees and disbursements of counsel for any Holder.

                           (b) In connection with any registration pursuant to
Section 7.3, Company shall pay all Registration Expenses and Selling Expenses,
except to the extent the aggregate of such expenses exceeds the amount which
Company would have expended in conducting an offering of only the shares sold by
it, and the participating Holders pro rata shall pay such excess based on the
number of shares of Registrable Securities offered by each pursuant to such
registration statement. Such Holders shall pay all Registration Expenses and
Selling Expenses directly attributable to the inclusion in the offering of
Registrable Securities being sold by the Holders, including without limitation
fees and disbursements of their own counsel and accountants.

                  7.7 Assignability of Registration Rights. The registration
rights afforded Purchaser in this Article 7, shall be assignable to a transferee
of Registrable Securities from Purchaser so long as (i) such transferee has
acquired no fewer than two million (2,000,000) shares of Registrable Securities
(as adjusted from time to time to reflect stock splits, stock dividends and
similar changes in the capitalization of Company) from Purchaser, (ii) such
transferee has agreed with Company in writing to comply with all applicable
provisions of this Article 7, and (iii) Purchaser has otherwise complied with
all provisions of this Agreement which affect its right to sell, transfer or
otherwise dispose of shares of Registrable Securities. For a transfer of
registration rights to be effective, Purchaser shall give Company written notice
at the time of such transfer stating the name and address of the transferee and
identifying the shares with respect to which the rights under this Article 7 are
being assigned.

                  7.8 Indemnification.

                           (a) In the case of each registration effected by
Company pursuant to Section 7.2 or 7.3, to the extent permitted by law Company
("indemnifying party") agrees to indemnify and hold harmless each Holder, its
officers and directors, and each underwriter within the meaning of Section 15 of
the Act, against any and all losses, claims, damages, liabilities or actions to
which they or any of them may become subject under the Act or any other statute
or common law, including any amount paid in settlement of any litigation,
commenced or threatened, if such settlement is effected with the written consent
of Company, and to reimburse them for any legal or other expenses incurred by
them in connection with investigating any claims and defending any actions,
insofar as any such losses, claims, damages, liabilities or actions arise out of
or are based upon (i) any untrue statement or alleged untrue statement of a
material fact contained in the registration statement relating to the sale of
such shares, or any post-effective amendment thereto, or the omission or alleged
omission to state therein a material fact required to be stated therein or
necessary to make the statements therein not misleading, (ii) any untrue
statement or alleged untrue statement of a material fact contained in any
preliminary prospectus, if used prior to the effective date of such registration
statement, or contained in the final prospectus (as amended or supplemented if
Company shall have filed with the Commission


                                       25
<PAGE>   27
any amendment thereof or supplement thereto) if used within the period during
which Company is required to keep the registration statement to which such
prospectus relates current under Section 7.4(d) (including any extensions of
such period as provided in Section 7.5.(g)), or the omission or alleged omission
to state therein (if so used) a material fact necessary to make the statements
therein, in light of the circumstances under which they were made, not
misleading; provided, however, that the indemnification agreement contained in
this Section 7.8(a) shall not (x) apply to such losses, claims, damages,
liabilities or actions arising out of, or based upon, any such untrue statement
or alleged untrue statement, or any such omission or alleged omission, if such
statement or omission was made in reliance upon and in conformity with
information furnished to Company by such Holder or underwriter for use in
connection with preparation of the registration statement, any preliminary
prospectus or final prospectus contained in the registration statement, or any
amendment or supplement thereto, or (y) inure to the benefit of any underwriter
or any Person controlling such underwriter, if such underwriter failed to send
or give a copy of the final prospectus to the Person asserting the claim at or
prior to the written confirmation of the sale of such securities to such Person
and if the untrue statement or omission concerned had been corrected in such
final prospectus.

                           (b) In the case of each registration effected by
Company pursuant to Section 7.2 or 7.3 above, each Holder and each underwriter
of the shares to be registered (each such party and such underwriters being
referred to severally as an "indemnifying party") shall agree in the same manner
and to the same extent as set forth in Section 7.8(a) to indemnify and hold
harmless Company, each Person (if any) who controls Company within the meaning
of Section 15 of the Act, the directors of Company and those officers of Company
who shall have signed any such registration statement, with respect to any
untrue statement or alleged untrue statement in, or omission or alleged omission
from, such registration statement or any post-effective amendment thereto or any
preliminary prospectus or final prospectus (as amended or supplemented, if
amended or supplemented) contained in such registration statement, if such
statement or omission was made in reliance upon and in conformity with
information furnished to Company by such indemnifying party for use in
connection with the preparation of such registration statement or any
preliminary prospectus or final prospectus contained in such registration
statement or any such amendment or supplement thereto.

                           (c) Each indemnified party will, promptly after
receipt of written notice of the commencement of an action against such
indemnified party in respect of which indemnity may be sought under this Section
7.8, notify the indemnifying party in writing of the commencement thereof. In
case any such action shall be brought against any indemnified party and it shall
so notify an indemnifying party of the commencement thereof, the indemnifying
party will be entitled to participate therein, with the approval of any
indemnified parties, which approval shall not be unreasonably withheld, and to
the extent it may wish, jointly with any other indemnifying party similarly
notified, to assume the defense thereof with counsel satisfactory to such
indemnified party, and after notice from the indemnifying party to such
indemnified party of its election so to assume the defense thereof, the
indemnifying party will not be liable to such indemnified party under this
Section 7.8 for any legal or other expenses subsequently incurred by such
indemnified party in connection with the defense thereof other than reasonable
costs of investigation. Notwithstanding the foregoing, an indemnified party
shall have the right to


                                       26
<PAGE>   28
employ separate counsel (reasonably satisfactory to the indemnifying party) to
participate in the defense thereof, but the fees and expenses of such counsel
shall be the expense of such indemnified party unless the named parties to such
action or proceedings include both the indemnifying party and the indemnified
party and the indemnifying party or such indemnified party shall have been
advised by counsel that there are one or more legal defenses available to it
which are different from or additional to those available to the indemnifying
party (in which case, if the indemnified party notifies the indemnifying party
in writing that it elects to employ separate counsel at the reasonable expense
of the indemnifying party, the indemnifying party shall not have the right to
assume the defense of such action or proceeding on behalf of the indemnified
party, as the case may be, it being understood, however, that the indemnifying
party shall not, in connection with any such action or proceeding or separate or
substantially similar or related action or proceeding in the same jurisdiction
arising out of the same general allegations or circumstances, be liable for the
reasonable fees and expenses of more than one separate counsel at any time for
the indemnifying party and all indemnified parties, which counsel shall be
designated in writing by the Holders of a majority of the Common Shares). If the
indemnifying party withholds consent to a settlement or proposed settlement by
the indemnified party, it shall acknowledge to the indemnified party its
indemnification obligations hereunder. The indemnity agreements in this Section
7.8 shall be in addition to any liabilities which the indemnifying parties may
have pursuant to law.
                           (d) If the indemnification provided for in this
Section 7.8 from an indemnifying party is unavailable to an indemnified party
hereunder in respect to any losses, claims, damages, liabilities or expenses
referred to herein, then the indemnifying party, in lieu of indemnifying such
indemnified party, shall contribute to the amount paid or payable by such
indemnified party as a result of such losses, claims, damages, liabilities or
expenses in such proportion as is appropriate to reflect the relative fault of
the indemnifying party and indemnified party in connection with the statements
or omissions which result in such losses, claims, damages, liabilities or
expenses, as well as any other relevant equitable considerations. The relative
fault of such indemnifying party and indemnified party shall be determined by
reference to, among other things, whether the untrue or alleged untrue statement
of a material fact or the omission or alleged omission to state a material fact
relates to information supplied by such indemnifying party or indemnified party
and that party's relative intent, knowledge, access to information supplied by
such indemnifying party or indemnified party and opportunity to correct or
prevent such statement or omission. The amount paid or payable by a party as a
result of the losses, claims, damages, liabilities and expenses referred to
above shall be deemed to include any legal or other fees or expenses reasonably
incurred by such party in connection with investigating or defending any action,
suit, proceeding or claim.


         ARTICLE 8. TERMINATION

                  8.1 Termination. This Agreement shall terminate upon the
earliest to occur of the following:

                           (a) Purchaser's completion of a tender offer in
accordance with Section 2.10, provided, that Purchaser's offer has been accepted
by shareholders owning not less than two-thirds (2/3) of the outstanding Common
Stock, as provided in such Section; or


                                       27
<PAGE>   29
                           (b) by mutual written agreement of Company and EMI;
or

                           (c) if the transactions contemplated under the Common
Share Purchase Agreement shall not have been consummated, on August 1, 1995; or

                           (d) if elected by EMI, exercisable upon delivery of
written notice thereof to Company, upon the failure of Company to comply with
its obligations under this Agreement and cure of such failure does not occur
within thirty (30) days after EMI has given written notice of such failure to
Company; or

                           (e) if elected by Company, exercisable upon delivery
of written notice thereof to the EMI, upon the failure of Purchaser to comply
with its obligations under this Agreement and cure of such failure does not
occur within thirty (30) days after Company gives written notice of such failure
to EMI.

                  8.2 Extended Cure Period. Notwithstanding Sections 8.1(d) and
8.1(e), the parties agree that if the nature of the failure requires that more
than thirty (30) days are necessary to cure, this Agreement shall not terminate
if the failing party commences a cure within the thirty (30) day period and
thereafter continuously and diligently pursues all steps necessary to cure the
failure up to and including completion of the cure; provided, however, that such
extended cure period shall terminate sixty (60) days after the expiration of the
thirty-day period after the delivery of notice, as contemplated in Sections
8.1(d) and 8.1(e); provided, further, that this Section 8.2 shall not apply to
Company's failure to sell at the time provided shares of Common Stock to
Purchaser under Section 2.4 or 2.6.

         ARTICLE 9. REPRESENTATIONS AND WARRANTIES

                  9.1 Of Company. Company hereby represents and warrants to EMI
as follows:

                           (a) Company is a corporation duly organized, validly
existing and in good standing under the laws of the Commonwealth of
Pennsylvania, with corporate power to own its properties and to conduct its
business as now conducted.

                           (b) The authorized capital stock of Company consists
of (i) 30,000,000 shares of Common Stock, of which at the date of this
Agreement, 11,066,367 shares were validly-issued and outstanding, fully paid and
nonassessable and no shares were held in Company's treasury, and (ii) 1,000,000
preferred shares, par value $1.00 per share, of which, at the date of this
Agreement, no shares were issued and outstanding. In addition, at the date of
this Agreement, an aggregate of 597,407 shares of Common Stock (including
authorized but unissued shares and treasury shares) were reserved for issuance
pursuant to presently existing options and future options under currently
existing stock option plans. Other than the Warrant, no other options, warrants,
rights or convertible securities providing for the issuance of Company capital
stock are outstanding.

                           (c) Company has full legal right, power and authority
to enter into and perform this Agreement, and the execution and delivery of this
Agreement by Company and the consummation of the transactions contemplated
hereby have been duly authorized by the Board and require no other Board or
stockholder action. This Agreement constitutes a valid and


                                       28
<PAGE>   30
binding agreement of Company. Neither this Agreement nor the performance of this
Agreement by Company or EMI violate Company's Restated Articles of
Incorporation.

                  9.2 Of EMI. EMI hereby represents and warrants to Company as
follows:

                           (a) EMI is a corporation duly organized, validly
existing and in good standing under the laws of New York, with corporate power
to own its properties and to conduct its business as now conducted.

                           (b) EMI has full legal right, power and authority to
enter into and perform this Agreement, and the execution and delivery of this
Agreement by it and the consummation of the transactions contemplated hereby
have been duly authorized by the Board of Directors of EMI and require no other
Board of Directors or stockholder action. This Agreement constitutes a valid and
binding agreement of EMI.


         ARTICLE 10. MISCELLANEOUS

                  10.1 Specific Enforcement. The parties hereto acknowledge and
agree that each would be irreparably damaged if any of the provisions of this
Agreement are not performed by the other in accordance with their specific terms
or are otherwise breached. It is accordingly agreed that each party shall be
entitled to seek an injunction or injunctions to prevent breaches of this
Agreement by the other and to enforce this Agreement and the terms and
provisions thereof specifically against the other, in addition to any other
remedy to which such aggrieved party may be entitled at law or in equity. Any
action or proceeding seeking to enforce any provision of, or based on any right
arising out of, this Agreement may be brought against any of the parties in the
courts of the Commonwealth of Pennsylvania, County of Chester, in the United
States District Court for the Eastern District of Pennsylvania, courts of the
State of New York, New York County, or in the United States District Court for
the Southern District of New York, and each of the parties consents to the
jurisdiction of such courts (and of the appropriate appellate courts) in any
such action or proceeding and waives any objection to venue laid therein.
Process in any action or proceeding referred to in the preceding sentence may be
served on any party anywhere in the world.

                  10.2 Severability. If any term or provision of this Agreement
is held by a court of competent jurisdiction or other authority to be invalid,
void, unenforceable or against its regulatory policy, the remainder of the
terms, provisions, covenants and restrictions of this Agreement shall remain in
full force and effect and shall in no way be affected, impaired or invalidated.

                  10.3 Expenses. Except as otherwise provided herein, each party
hereto shall pay its own expenses in connection with this Agreement.

                  10.4 Assignment; Successors. This Agreement shall be binding
upon and shall inure to the benefit of and be enforceable by the successors and
permitted assigns of the parties hereto. Except as otherwise provided herein,
Company may not assign its rights and delegate its duties and obligations under
this Agreement without the prior written consent of EMI, and EMI may not assign
its rights or delegate its duties and obligations under this Agreement without
the prior written consent of Company and, in the absence of such consent, any
such purported


                                       29
<PAGE>   31
assignment or delegation shall be void; provided, however, that EMI may assign
its rights and delegate its duties and obligations under this Agreement without
such consent to a directly or indirectly wholly owned subsidiary of EMI, or to
any corporation, partnership or other entity wholly-owned by the same person
which controls EMI, which subsidiary, corporation, partnership or other entity
(referred to herein as the "Assignee") may, following duly authorized execution
and delivery of an agreement assuming the obligations of EMI hereunder
reasonably satisfactory to Company, accept title to the Shares and/or Warrant
Shares. In the event that EMI assigns its rights and delegates all of its
obligations under this Agreement in accordance with this Section 10.4, all
references to EMI herein shall refer to the Assignee as well as to EMI and EMI
shall be jointly and severally liable with the Assignee for the performance of
its obligations hereunder.

                  10.5 Amendments. This Agreement may not be modified, amended,
altered or supplemented except by a written agreement signed by Company and EMI
which shall be authorized by all necessary corporate action of each party. Any
party may waive any condition to the obligations of any other party hereunder.

                  10.6 Notices. Every notice or other communication required or
contemplated by this Agreement to be given by a party shall be delivered either
by (a) personal delivery, (b) courier mail, or (c) facsimile mail addressed to
the party for whom intended at the following address:

To Company:       VWR Corporation
                           1310 Goshen Parkway
                           West Chester, PA 19380
                           Attention:  Jerrold B. Harris
                           Telecopy No.:  (610)436-1760

With a copy to:   Drinker Biddle & Reath
                           1000 Westlakes Drive, Suite 300
                           Berwyn, PA  19312
                           Attention:  Thomas E. Wood, Esq.
                           Telecopy No.:  (610)993-8585

To EMI:                    EM Industries, Incorporated
                           5 Skyline Drive
                           Hawthorne, New York 10532
                           Attention: President & Chief Executive Officer
                           Telecopy No.: (914) 592-8775

With a copy to:   Rogers & Wells
                           200 Park Avenue
                           New York, New York  10166
                           Attention:  Klaus H. Jander, Esq.
                           Telecopy No.:  (212) 878-3025

     or at such other address as the intended recipient previously shall have
     designated by written notice to the other parties. Notice by courier mail
     shall be effective on the date it is officially


                                       30
<PAGE>   32
recorded as delivered to the intended recipient by return receipt or equivalent.
All notices and other communications required or contemplated by this Agreement
delivered in person or sent by facsimile mail shall be deemed to have been
delivered to and received by the addressee and shall be effective on the date of
personal delivery or on the date sent, respectively. Notice not given in writing
shall be effective only if acknowledged in writing by a duly authorized
representative of the party to whom it was given.

                  10.7 Attorneys' Fees. If any action or proceeding shall be
commenced to enforce this Agreement or any right arising in connection with this
Agreement, the prevailing party in such action or proceeding shall be entitled
to recover from the other party the reasonable attorneys' fees, costs and
expenses incurred by such prevailing party in connection with such action or
proceeding.

                  10.8 Integration. This Agreement, together with the Common
Share and Warrant Purchase Agreement and the Warrant, contains the entire
understanding of the parties with respect to its subject matter. There are no
restrictions, agreements, promises, warranties, covenants or undertakings other
than those expressly set forth herein or therein with respect to any matter.

                  10.9 Waivers. No failure or delay on the part of either party
in the exercise of any power, right or privilege hereunder shall operate as a
waiver thereof, nor shall any single or partial exercise of any such power,
right or privilege preclude other or further exercise thereof or of any other
right, power or privilege. All rights and remedies existing under this Agreement
are cumulative to, and not exclusive of, any rights or remedies otherwise
available.

                  10.10 Governing Law. This Agreement shall be exclusively
governed by, construed in accordance with, and interpreted according to the
substantive law of the Commonwealth of Pennsylvania without giving effect to the
principles of conflict of laws.

                  10.11 Counterparts. This Agreement may be executed in one or
more counterparts, each of which shall be deemed to be an


                                       31
<PAGE>   33
original, but all of which together shall constitute one and the same
instrument.

                  10.12 Cooperation. The parties hereto shall each perform such
acts, execute and deliver such instruments and documents, and do all such other
things as may be reasonably necessary to accomplish the transactions
contemplated in this Agreement.

                  10.13 Section Headings and Captions. Section headings and
captions used in this Agreement are provided for convenience only and shall not
affect its meaning or interpretation.


                  IN WITNESS WHEREOF, Company and EMI have caused this Agreement
to be executed on the date first above written.


                                    VWR CORPORATION


                                    BY:  /s/ Jerrold B. Harris
                                         ------------------------------
                                    ITS:  President
                                         ------------------------------


                                    EM INDUSTRIES, INCORPORATED


                                    BY:  /s/ Walter W. Zywottek
                                         ------------------------------

                                    ITS:  President
                                         ------------------------------


                                       32

<PAGE>   1
                                                                  Exhibit (c)(4)


                AMENDMENT NUMBER ONE TO THE STANDSTILL AGREEMENT



                                  by and among


                                VWR CORPORATION,

                           EM INDUSTRIES, INCORPORATED

                                       and

                          EM LABORATORIES, INCORPORATED



                               September 15, 1995
<PAGE>   2
                AMENDMENT NUMBER ONE TO THE STANDSTILL AGREEMENT


                  This Amendment Number One to the Standstill Agreement (the
"Amendment") made this 15th day of September, 1995 by and among VWR Corporation
("VWR"), a Pennsylvania corporation, EM Industries, Incorporated ("EMI"), a New
York corporation, and EM Laboratories, Incorporated ("EM Laboratories"), a New
York corporation,

                              W I T N E S S E T H:

                  WHEREAS, EMI and VWR entered into a Standstill Agreement dated
February 27, 1995 (the "Standstill Agreement");

                  WHEREAS, pursuant to an Assignment and Assumption Agreement
dated April 13, 1995, and in conformity with Section 10.4 of the Standstill
Agreement, EMI assigned its rights and delegated its duties and obligations
under the Standstill Agreement to EM Laboratories and EM Laboratories accepted
such assignment and delegation; and WHEREAS, accordingly, all references to EMI
in the Standstill Agreement refer to EM Laboratories as assignee as well as to
EMI, and EMI and EM Laboratories are jointly and severally liable for the
performance of the obligations of EM Laboratories under the Standstill
Agreement;

                  WHEREAS, Section 10.5 of the Standstill Agreement provides
that the Standstill Agreement may be amended by a written agreement signed by
VWR and EMI; and

                  WHEREAS, VWR, EMI and EM Laboratories have agreed to amend the
Standstill Agreement as provided herein,

                  NOW THEREFORE, in consideration of the mutual agreements and
covenants set forth herein, and for other good and valuable consideration, the
parties agree that the Standstill Agreement shall be amended as of the date
hereof as follows:


         SECTION. 1. To the Recitals there shall be added Recital D, which shall
         read in its entirety as follows:

           "D. Company and EMI have entered into a Common Share and Debenture
           Purchase Agreement dated May 24, 1995, pursuant to which, among other
           things, Company shall issue and sell to EMI additional Common Stock
           (as defined below) of Company and a subordinated debenture (the
           'Debenture')."


         SECTION 2. To Article 1 there shall be added the following sentence,
         which shall be set forth immediately after the caption "DEFINITIONS":

           "Capitalized terms used but not defined herein shall have the meaning
           set forth, as the case may be, in the Common Share and Warrant
           Purchase Agreement (as defined below) or the Common Share and
           Debenture Purchase Agreement (as defined below)."


         SECTION 3. To Article 1 there shall be added the following definitions,
         the other sections of Article 1 being renumbered accordingly, which new
         definitions shall read in their entirety as follows:


                                       1
<PAGE>   3
         "1.3. Agreement. 'Agreement' means this Standstill Agreement, as it may
be from time to time modified, amended, altered or supplemented by written
agreement of the parties as provided in Section 10.5."

         "1.10. Common Share and Debenture Purchase Agreement. 'Common Share and
         Debenture Purchase Agreement' means the Common Share and Debenture
         Purchase Agreement, dated May 24, 1995, between Company and EMI."

         "1.31. Second Closing Date. 'Second Closing Date' means the date the
         acquisition of the Common Stock and Debenture by Purchaser is
         consummated pursuant to the terms of the Common Share and Debenture
         Purchase Agreement."


     SECTION 4. Section 1.10 of the Agreement shall be renumbered Section 1.12
     shall be amended to read, in its entirety, as follows:

         "1.12. Common Stock Equivalents. 'Common Stock Equivalents' means the
         sum of the following, determined at any time during the term of this
         Agreement: (a) the total number of shares of issued and outstanding
         Common Stock, plus (b) the number of votes which may be cast for the
         election of directors (whether directly or by formula) as a result of
         ownership of any Voting Securities other than Common Stock; provided,
         however, that the votes described in (b) above shall not be included in
         Common Stock Equivalents until the Voting Securities other than Common
         Stock are able to be voted for the election of directors."


     SECTION 5. The second sentence of Section 2.2 shall be amended to read in
     its entirety as follows:

         "The 'Percentage Limitation' shall be 49.9% of the Common Stock
         Equivalents."


     SECTION 6. Section 2.7(e) shall be amended to read in its entirety as
     follows:

         "(e) If Company does not elect to purchase shares from Purchaser, or
         elects to purchase only a portion of the shares under Section 2.7(b),
         Purchaser shall be entitled to retain the shares over the Percentage
         Limitation but the Percentage Limitation shall remain 49.9%."



     SECTION 7. Section 2.10 shall be amended to read in its entirety as
     follows:

         "2.10 Requirements for Tender Offers. Whenever Purchaser shall make a
         tender offer for shares of Common Stock under Section 2.9:

         "(a) Purchaser shall not commence any such tender offer unless
         acceptance of Purchaser's offer shall have been recommended to the
         shareholders by a majority vote of the Unaffiliated Directors; and

         "(b) Purchaser may not close the acquisition of the tendered shares
         unless all of the following requirements have been satisfied:


                                       2
<PAGE>   4
                  "(i) Purchaser's offer shall have been made to all holders of
         Common Stock;

                  "(ii) Purchaser shall offer to purchase for cash all shares
         tendered; and

                  "(iii) Purchaser's offer shall have been accepted by
         shareholders owning not less than a majority of the outstanding Common
         Stock.

         "(c) With respect to calculating whether Purchaser's offer has been
         accepted by shareholders owning a majority of the outstanding Common
         Stock, Common Shares beneficially owned by Purchaser shall be excluded
         from the outstanding Common Stock."


     SECTION 8. Section 4.1(a) shall be amended so that the legend set forth
     therein shall read in its entirety as follows:

         "THE SHARES REPRESENTED BY THIS CERTIFICATE HAVE NOT BEEN REGISTERED
         UNDER THE SECURITIES ACT OF 1933, AS AMENDED, OR ANY APPLICABLE STATE
         SECURITIES LAW AND ARE SUBJECT TO THE RESTRICTIONS ON DISPOSITION SET
         FORTH IN AND TO THE OTHER PROVISIONS OF A COMMON SHARE AND WARRANTY
         PURCHASE AGREEMENT, DATED FEBRUARY 27, 1995, BETWEEN VWR CORPORATION
         AND EM INDUSTRIES, INCORPORATED, AND A COMMON SHARE AND DEBENTURE
         PURCHASE AGREEMENT, DATED MAY 24, 1995, BETWEEN VWR CORPORATION AND EM
         INDUSTRIES, INCORPORATED, AND A STANDSTILL AGREEMENT, DATED FEBRUARY
         27, 1995, BETWEEN VWR CORPORATION AND EM INDUSTRIES, INCORPORATED, AS
         AMENDED ON SEPTEMBER 15, 1995. COPIES OF SUCH AGREEMENTS ARE ON FILE AT
         THE RESPECTIVE OFFICES OF VWR CORPORATION AND EM INDUSTRIES
         INCORPORATED."


     SECTION 9. Section 6.1 shall be amended to read in its entirety as follows:

         "6.1. Size of Board; Proportionate Representation. (a) On or before the
         Second Closing Date, the Company shall take all requisite action,
         including without limitation increasing or decreasing the number of
         seats on the Board, to grant EMI the right, at EMI's option, to
         nominate such number of directors to the Board as shall ensure that EMI
         shall have the right to maintain Board representation at all times
         commensurate with the aggregate proportion of Common Shares owned by
         EMI and its Affiliates.

         "(b) At any time when EMI shall exercise its option to appoint
         directors, as described in paragraph (a) above, the Company shall take
         all requisite action to cause the election, effective immediately, of
         the individuals designated by EMI to fill the number of seats on the
         Board that shall be proportionate to the aggregate Common Share
         ownership of EMI and its Affiliates."


     SECTION 10. Section 6.2 shall be amended to read in its entirety as
     follows:


                                       3
<PAGE>   5
         "6.2 Terms. EMI shall advise Company as necessary, from time to time,
         which of the Affiliated Directors shall have a term expiring at the
         second annual meeting of shareholders of Company next following the
         Second Closing Date, and which shall have a term expiring at the third
         such annual meeting. After the term of any Affiliated Director expires,
         his or her successor shall serve a term of three (3) years as provided
         in the Restated Articles of Incorporation of Company."


     SECTION 11. Section 8.1(a) shall be amended to read in its entirety as

         follows: "(a) Purchaser's completion of a tender offer in accordance
         with Section 2.10, provided, that Purchaser's offer shall have been
         recommended to the shareholders by a majority vote of the Unaffiliated
         Directors and shall have been accepted by shareholders owning not less
         than a majority of the outstanding Common Stock, as provided in such
         Section; or".


     SECTION 12. The proviso set forth in the second sentence of Section 10.4
     shall be amended to read in its entirety as follows:

         ". . . provided, however, that EMI may assign its rights and delegate
         its duties and obligations under this Agreement without such consent to
         an Affiliate of EMI, which Affiliate (referred to herein as the
         "Assignee") may, following duly authorized execution and delivery of an
         agreement assuming the obligations of EMI hereunder reasonably
         satisfactory to Company, accept title to the Shares and/or Warrant
         Shares."


     SECTION 13. This Amendment shall be exclusively governed by, construed in
     accordance with, and interpreted according to the substantive law of the
     Commonwealth of Pennsylvania without giving effect to the principles of
     conflict of laws.

     SECTION 14. This Amendment may be executed in one or more counterparts,
     each of which shall be deemed to be an original, but all of which together
     shall constitute one and the same instrument.

     IN WITNESS WHEREOF, VWR, EMI and EM Laboratories have caused this Amendment
     to be executed on the date first above written.


                                 VWR CORPORATION

                                 By: /s/ Jerrold B. Harris
                                 Name:  Jerrold B. Harris
                                 Title:  President and Chief Executive Officer


                                 EM INDUSTRIES, INCORPORATED

                                 By:  /s/ Walter W. Zywottek
                                 Name:  Walter W. Zywottek
                                 Title:  President and Chief Executive Officer


                                       4
<PAGE>   6
                                 EM LABORATORIES, INCORPORATED

                                 By:  /s/ Walter W. Zywottek
                                 Name:  Walter W. Zywottek
                                 Title:  President and Chief Executive Officer


                                       5


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