MARION MERRELL DOW INC
SC 13D, 1995-05-12
PHARMACEUTICAL PREPARATIONS
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          ____________________________________________________________

                       SECURITIES AND EXCHANGE COMMISSION
                              WASHINGTON, DC 20549


                                  SCHEDULE 13D

                    UNDER THE SECURITIES EXCHANGE ACT OF 1934

                            Marion Merrell Dow Inc.
          ____________________________________________________________
                                (Name of issuer)

                    Common Stock, par value $0.10 per share
          ____________________________________________________________
                         (Title of class of securities)

                                   569790-10-8
          ____________________________________________________________
                                 (CUSIP number)

                                        Copy to:
               Harry R. Benz                 Roger S. Aaron, Esq.
              Hoechst Corporation           Skadden, Arps, Slate,
                                                Meagher & Flom
               Route 202-206                 919 Third Avenue
               P.O. Box 2500                 New York, New York  10022
               Somerville, New Jersey
                          08876-1258
          ____________________________________________________________
                  (Name, address and telephone number of person
                authorized to receive notices and communications)

                                May 3, 1995
          ____________________________________________________________
             (Date of event which requires filing of this statement)

               If the filing person has previously filed a statement
          on Schedule 13G to report the acquisition which is the
          subject of this Schedule 13D, and is filing this schedule
          because of Rule 13d-1 (b)(3) or (4), check the following box
          [  ].

               Check the following box if a fee is being paid with the
          statement [X].
          ____________________________________________________________

           CUSIP NO. 569790-10-8

            1   NAME OF REPORTING PERSONS
                 S.S. OR I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS
                 Hoechst Corporation
                 22-1862783

            2   CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP    (a) [x]
                                                                    (b) [ ]

            3   SEC USE ONLY

            4   SOURCE OF FUNDS
                 BK, AF

            5   CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED
                 PURSUANT TO ITEM 2(D) OR 2(E)                          [ ]

            6   CITIZENSHIP OR PLACE OF ORGANIZATION
                 Delaware
                                       7    SOLE VOTING POWER
               NUMBER OF                     -0-
                SHARES
                                       8    SHARED VOTING POWER
                                             -0-
             BENEFICIALLY
                                       9    SOLE DISPOSITIVE POWER
             OWNED BY EACH                  -0-
               REPORTING
              PERSON WITH             10   SHARED DISPOSITIVE POWER
                                            -0-

            11  AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
                 196,865,790 shares of common stock

            12  CHECK BOX IF THE AGGREGATE AMOUNT IN BOX (11) EXCLUDES CERTAIN
                 SHARES                                                   [ ]

            13  PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
                 71.0%

            14  TYPE OF REPORTING PERSON
                 CO



           CUSIP NO. 569790-10-8

            1   NAME OF REPORTING PERSONS
                 S.S. OR I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS
                 H Pharma Acquisition Corp.
                 51-0363736

            2   CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP    (a) [x]
                                                                    (b) [ ]

            3   SEC USE ONLY

            4   SOURCE OF FUNDS
                 BK, AF

            5   CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED
                 PURSUANT TO ITEM 2(D) OR 2(E)                          [ ]

            6   CITIZENSHIP OR PLACE OF ORGANIZATION
                 Delaware
                                       7    SOLE VOTING POWER
               NUMBER OF                    -0-
                 SHARES
                                       8    SHARED VOTING POWER
               BENEFICIALLY                 -0-

               OWNED BY EACH           9    SOLE DISPOSITIVE POWER
                                            -0-
               REPORTING
              PERSON WITH             10   SHARED DISPOSITIVE POWER
                                           -0-

            11  AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
                 196,865,790 shares of common stock

            12  CHECK BOX IF THE AGGREGATE AMOUNT IN BOX (11) EXCLUDES CERTAIN
                 SHARES                                                    [ ]

            13  PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
                 71.0%

            14  TYPE OF REPORTING PERSON
                 CO


          ITEM 1.   SECURITY AND ISSUER.

                    The class of equity securities to which this
          Statement on Schedule 13D (this "Statement") relates is
          the common stock, par value $0.10 per share (the "Common
          Stock" or the "Shares"), of Marion Merrell Dow Inc., a
          Delaware corporation (the "Company").  The address of the
          principal executive offices of the Company is 9300 Ward
          Parkway, Kansas City, Missouri  64114.

          ITEM 2.   IDENTITY AND BACKGROUND.

                    (a)-(c), (f)  This Statement is filed jointly
          by Hoechst Corporation, a Delaware corporation
          ("Parent"), and H Pharma Acquisition Corp., a Delaware
          corporation ("Acquisition").  Each of Parent and
          Acquisition is a wholly owned subsidiary of Hoechst
          Aktiengesellschaft, a German corporation ("Hoechst AG").
          Parent is a holding company for the U.S. operations of
          Hoechst AG, a multinational pharmaceutical and chemical
          company headquartered in Frankfurt, Germany.  Acquisition
          is a recently organized corporation that has not
          conducted any business except in connection with the
          Transaction (as defined below).  The address of each of
          Parent's and Acquisition's principal offices is Route
          202-206, Somerville, New Jersey 08876-1258.

                    (d)-(e)  During the past five years, neither
          Parent nor Acquisition nor, to their knowledge, any of
          the persons listed on Schedule 1 hereto, has been
          convicted in a criminal proceeding (excluding traffic
          violations or similar misdemeanors).  During the past
          five years, neither Parent nor Acquisition nor, to their
          knowledge, any of the persons listed on Schedule 1
          hereto, has been a party to a civil proceeding of a
          judicial or administrative body of competent jurisdiction
          and as a result of such proceeding been subject to a
          judgment, decree or final order enjoining future
          violations of, or prohibiting or mandating activities
          subject to, federal or state securities laws or finding
          any violation with respect to such laws.

          ITEM 3.   SOURCE AND AMOUNT OF FUNDS OR OTHER
                    CONSIDERATION.

                    The total amount of funds required by
          Acquisition to consummate the Transaction (as defined
          below) and to pay related fees and expenses is estimated
          to be approximately $7.1 billion.  Acquisition expects to
          obtain such funds from initial equity contributions from
          Hoechst AG totalling $2.5 billion, plus additional
          funding to Acquisition by Parent.  This additional
          funding is expected to be in the form of further equity
          contributions and/or loans.  Parent expects to obtain the
          funds to make such equity contributions and/or loans from
          general corporate funds and/or through borrowings from
          commercial banks or other sources.  Parent has received
          preliminary indications of interest from numerous
          commercial banks with respect to their providing debt
          financing for the Transaction.  However, no agreements
          have been entered into with respect to any such third
          party loans.

          ITEM 4.   PURPOSE OF THE TRANSACTION.

                    (a)-(j) Parent and Acquisition have entered
          into (i) an Agreement and Plan of Merger, dated as of May
          3, 1995 (the "Merger Agreement"), by and among Parent,
          Acquisition, the Company and The Dow Chemical Company, a
          Delaware corporation ("DCC"), and (ii) a Stock Purchase
          Agreement, dated as of May 3, 1995 (the "Stock Purchase
          Agreement"), by and among Parent, Acquisition, DCC, RH
          Acquisition Corp., a Delaware corporation and a wholly
          owned subsidiary of DCC ("RHAC"), and Dow Holdings Inc.,
          a Delaware corporation and a wholly owned subsidiary of
          DCC ("DHI" and, collectively with DCC and RHAC, "Dow").

                    Pursuant to the Stock Purchase Agreement, Dow
          has agreed to sell all of the 196,865,790 shares
          (collectively, "Dow Shares") of Common Stock owned by Dow
          to Acquisition for $25.75 per Share in cash.  The
          purchase and sale of the Dow Shares pursuant to the Stock
          Purchase Agreement is subject to the satisfaction or
          waiver of certain conditions including, among others,
          termination or expiration of the applicable waiting
          periods under the Hart-Scott-Rodino Antitrust
          Improvements Act of 1976, as amended, and under
          Regulation (EEC) No. 4064/89 of the European Community.
          The Dow Shares represent approximately 71.0% of the
          outstanding Shares as of April 28, 1995.

                    Pursuant to the Merger Agreement, Acquisition
          has agreed to merge with and into the Company, with the
          Company continuing as the surviving corporation (the
          "Merger").  In the Merger, each outstanding Share (other
          than Shares owned by Parent, Acquisition or any of their
          subsidiaries, Shares held in the treasury of the Company
          or any of its subsidiaries, and Shares the holders of
          which properly exercise dissenters' rights under the
          General Corporation Law of the State of Delaware), would
          be converted into the right to receive $25.75 in cash,
          plus, in the event the Dow Shares are purchased by
          Parent, Acquisition or their affiliates at least one day
          prior to the effective date (the "Effective Date") of the
          Merger, an additional cash amount equal to $0.25
          multiplied by a fraction (i) the numerator of which is
          the number of whole days from the record date for the
          regular quarterly cash dividend on the Shares next
          preceding the Effective Date (excluding such record date)
          to and including the Effective Date, and (ii) the
          denominator of which is the number of whole days in the
          full quarter in which the Effective Date occurs
          (collectively, the "Merger Consideration").  As a result
          of the Merger, the Company would become a wholly owned
          subsidiary of Parent.  The Common Stock is currently
          registered pursuant to Section 12(b) of the Securities
          Exchange Act of 1934, as amended (the "Exchange Act"),
          and the Company files reports pursuant thereto with the
          Securities and Exchange Commission and the New York Stock
          Exchange, Inc. (the "NYSE").  Following the consummation
          of the Merger, the registration of the Common Stock under
          the Exchange Act would be terminated and the Shares would
          no longer be listed on the NYSE or otherwise publicly
          traded.  Closing under the Merger Agreement is
          conditioned upon, among other things, (i) Acquisition,
          Parent or their affiliates having purchased the Dow
          Shares, and (ii) the Merger Agreement having been adopted
          by the Company's stockholders.  Pursuant to the Merger
          Agreement, each of DCC, Parent and Acquisition has agreed
          to vote (and to cause each of its respective affiliates
          to vote) all Shares  held by it (or its affiliates) in
          favor of adoption of the Merger Agreement.

                    The Merger Agreement provides that upon
          consummation of the Merger, each outstanding option
          (including any related stock appreciation right)(an
          "Employee Option") issued, awarded or granted pursuant to
          the Company's 1992 Incentive Compensation Plan, the 1985
          Associate Stock Option Plan or the Non-Qualified Employee
          Stock Option Plan (the "Company Plans") to purchase
          Shares will be eliminated by the Company, and each holder
          of an eliminated Employee Option will be entitled to
          receive from the Company in consideration for the
          elimination of such Employee Option an amount in cash
          (less applicable withholding taxes) equal to the product
          of (i) the number of Shares previously subject to such
          Employee Option and (ii) the excess, if any, of the
          Merger Consideration over the exercise price per Share
          previously subject to such Employee Option.  Each
          Employee Option the exercise price per Share of which is
          equal to or greater than the Merger Consideration will be
          eliminated in consideration for a cash payment equal to
          the product of $0.01 multiplied by the number of Shares
          previously subject to such Employee Option.  The Merger
          Agreement also provides that each outstanding performance
          share ("Performance Share") granted under the Company's
          1992 Incentive Compensation Plan will become fully vested
          in accordance with the terms of the Incentive Plan and,
          upon consummation of the Merger, will, unless previously
          paid and eliminated in accordance with the terms thereof,
          be eliminated by the Company, and each holder of an
          eliminated Performance Share will be entitled to receive
          from the Company an amount in cash (less applicable
          withholding taxes) equal to the product of (i) the Merger
          Consideration and (ii) the number of Performance Shares
          previously held by such holder.

                    In the Merger Agreement, the Company has agreed
          to redeem, immediately prior to the Merger, all of the
          outstanding shares of its Series A ESOP Convertible
          Preferred Stock (the "Series A Preferred Shares") at the
          applicable cash redemption price determined in accordance
          with the Company's Restated Certificate of Incorporation.
          The Company and Parent have held discussions with the
          trustee of the Marion Merrell Dow Associate Stock
          Ownership Plan ("ASOP") Trust (which holds the Series A
          Preferred Shares) with respect to a possible transaction
          in which the Company would repurchase the Series A
          Preferred Shares in exchange for consideration consisting
          of cash and the assumption by the Company of the ASOP's
          obligations under the 9.11% Guaranteed Amortizing ESOP
          Notes due August 1, 2005 which were previously issued by
          the ASOP.  No definitive agreements with respect to any
          such ASOP transaction have been reached.  However, Parent
          expects to continue discussions with respect to such
          transaction.

                    The Merger Agreement also provides that,
          promptly upon the purchase by Acquisition of the Dow
          Shares, Acquisition will be entitled to designate up to
          that number of directors, rounded up to the nearest whole
          number, on the Board of Directors of the Company as will
          make the percentage of the directors designated by
          Acquisition equal to the percentage of outstanding Shares
          held by Acquisition and its affiliates (other than the
          Company and its subsidiaries).  The Company has agreed
          to, upon Acquisition's request following its purchase of
          the Dow Shares, increase the size of its Board of
          Directors or use its reasonable best efforts to secure
          the resignation of such number of directors as is
          necessary to enable Acquisition's designees to be elected
          to the Company's Board of Directors.

                    The transactions contemplated by the Merger
          Agreement and the Stock Purchase Agreement, including the
          Merger and the purchase of the Dow Shares by Acquisition,
          are collectively referred to in this Statement as the
          "Transaction."

                    The purpose of the Stock Purchase Agreement is
          to enable Parent to acquire control of the Company and
          the purpose of the Merger Agreement is to enable Parent
          to acquire the entire equity interest in the Company.

                    Roussel Uclaf S.A. ("Roussel"), a French
          societe anonyme which is a majority-owned subsidiary of
          Hoechst AG, has entered into an agreement dated as of May
          3, 1995 with certain affiliates of DCC (the "Purchase
          Agreement"), to acquire the pharmaceutical business
          operated by DCC and its affiliates in Argentina, Brazil,
          Mexico and elsewhere in Latin America (the "Latin
          American Pharma Business").  Pursuant to and subject to
          the terms and conditions of the Purchase Agreement,
          Roussel and/or its designated affiliates will purchase
          the assets of the Latin American Pharma Business (other
          than real property and certain other specified assets)
          for $140 million, subject to adjustment as provided in
          the Purchase Agreement.  The assets to be acquired
          include:  (i) all of the capital stock of Merrell Lepetit
          Farmaceutica Industrial LTDA, a limited company organized
          under the laws of Brazil, (ii) certain assets owned by
          Latin American Pharmaceutical Inc., a Delaware
          corporation, which assets include all of the capital
          stock of Laboratorios Lepetit de Mexico S.A. de C.V., a
          corporation organized under the laws of Mexico and (iii)
          certain assets owned by Dow Quimica Argentina S.A., a
          corporation organized under the laws of Argentina.
          Closing under the Purchase Agreement is conditioned upon,
          among other things, Hoechst AG having acquired, directly
          or indirectly, at least a majority of the Shares
          outstanding on a fully diluted basis.

                    Following the Transaction, it is expected that
          the Company's businesses and operations will be
          integrated with the other pharmaceutical businesses and
          operations of Hoechst AG.

                    The descriptions set forth in this Statement
          of the Merger Agreement, the Stock Purchase Agreement and
          the Purchase Agreement do not purport to be complete and
          are qualified in their entirety by reference to the
          Merger Agreement, the Stock Purchase Agreement and the
          Purchase Agreement, copies of which are filed as Exhibits
          1, 2 and 3, respectively, to this Statement.

          ITEM 5.   INTEREST IN SECURITIES OF THE ISSUER.

                    (a)  Parent and Acquisition beneficially own an
          aggregate of 196,865,790 Shares, which is the number of
          Dow Shares which Acquisition has agreed to purchase from
          Dow pursuant to the Stock Purchase Agreement.  Such
          Shares represent approximately 71.0% of the outstanding
          Shares as of April 28, 1995.  Except as set forth in this
          Item 5(a), neither Parent nor Acquisition nor, to their
          knowledge, any of the persons listed on Schedule 1
          hereto, beneficially owns any Shares.

                    (b)  As of the date of this Statement, Parent
          and Acquisition do not have voting or dispositive power
          with respect to the Dow Shares.  After acquiring the Dow
          Shares, Acquisition would have sole voting and
          dispositive power with respect to all of the Dow Shares.

                    (c)  Except as disclosed herein, there have
          been no transactions in the class of securities reported
          on that were effected during the past sixty (60) days by
          Parent or Acquisition.  To the knowledge of Parent or
          Acquisition, there have been no transactions in the class
          of securities reported on during the past sixty (60) days
          by any of the persons listed on Schedule 1.

                    (d)-(e)  Not applicable.

          ITEM 6.   CONTRACTS, ARRANGEMENTS, UNDERSTANDINGS OR
                    RELATIONSHIPS WITH RESPECT TO SECURITIES OF THE
                    ISSUER.

                    The descriptions of the Merger Agreement and
          the Stock Purchase Agreement set forth in Item 4 of this
          Statement are incorporated herein by reference.  In
          addition, pursuant to the Stock Purchase Agreement, Dow
          has agreed that, as long as the Stock Purchase Agreement
          is in effect, it shall vote, or cause to be voted, all of
          the Dow Shares in favor of the approval and adoption of
          the Merger Agreement and the transactions contemplated
          thereby.  Dow has also agreed that as long as the Stock
          Purchase Agreement is in effect, in any meeting of the
          stockholders of the Company, however called, it shall
          vote, or cause to be voted, all of the Dow Shares:  (i)
          against any action or agreement that would result in a
          breach in any material respect of any covenant,
          representation or warranty or any other obligation of the
          Company or DCC under the Merger Agreement or of Dow under
          the Stock Purchase Agreement; and (ii) against any action
          or agreement that would impede, interfere with or
          discourage the transactions contemplated by the Merger
          Agreement, including, without limitation:  (1) any
          extraordinary corporate transaction, such as a merger,
          reorganization or liquidation involving the Company or
          any of its subsidiaries, (2) a sale or transfer of a
          material amount of assets of the Company or any of its
          subsidiaries or the issuance of securities by the Company
          or any of its subsidiaries, (3) any change in the Board
          of Directors of the Company (other than as contemplated
          by the Merger Agreement as described in Item 4 of this
          Statement), (4) any change in the present capitalization
          or dividend policy of the Company (other than as
          contemplated by the Merger Agreement) or (5) any other
          material change in the Company's corporate structure or
          business.  The Stock Purchase Agreement also provides
          that, upon the purchase and sale of the Dow Shares
          pursuant to the Stock Purchase Agreement, Dow shall grant
          Acquisition an irrevocable proxy to vote all the Dow
          Shares at any meeting of the stockholders of the Company,
          however called.  In the Stock Purchase Agreement, Dow has
          also agreed not to (either directly or indirectly):  (i)
          sell, transfer, pledge, assign, hypothecate or otherwise
          dispose of the Dow Shares; (ii) grant any proxies with
          respect to the Dow Shares, deposit the Dow Shares into a
          voting trust or enter into a voting agreement with
          respect to such Dow Shares; or (iii) take any action
          which would make any representation or warranty of Dow in
          the Stock Purchase Agreement untrue or incorrect in any
          material respect.

                    Other Agreements.  In connection with the
          transactions contemplated by the Merger Agreement and the
          Stock Purchase Agreement, the following additional
          agreements were executed on May 3, 1995.  Pursuant to an
          Indemnity Agreement, Parent has agreed to indemnify DCC
          from and after the earlier of the purchase by Acquisition
          of the Dow Shares and the Effective Date in respect of
          DCC's existing guaranty in favor of the investors in
          Carderm Capital L.P., in which subsidiaries of the
          Company hold a controlling interest.  Pursuant to a Tax
          Allocation Agreement, DCC, Parent and the Company have
          agreed to an allocation of certain tax liabilities.
          Pursuant to separate Computerized Process Control
          Software Agreements, affiliates of DCC and affiliates of
          the Company have agreed to leases of certain process
          control software owned by affiliates of DCC.  Pursuant to
          an Insurance Separation Agreement, Parent, the Company,
          DCC and three wholly owned insurance subsidiaries of DCC
          have agreed to certain matters regarding insurance,
          reinsurance and related topics.  Pursuant to a
          Manufacturing Agreement Amendment between DCC, the
          Company and Merrell Dow Pharmaceuticals, Inc., a wholly
          owned subsidiary of the Company ("MDPI"), the terms of a
          manufacturing arrangement and ground lease relating to a
          manufacturing facility in Midland, Michigan were modified
          and DCC agreed to repurchase the facility upon the
          termination of the manufacturing arrangement at a
          purchase price of 60% of the residual book value of the
          facility at the time of termination.  Pursuant to a
          Second Amendment to Master Service Agreements between
          DCC, the Company and MDPI, certain research and
          development services provided by DCC were modified and
          DCC agreed to purchase certain physical assets owned by
          either the Company or MDPI upon the termination of the
          research services arrangements at a purchase price of 60%
          of the residual book value of the assets at the time of
          termination of the research services arrangements.
          Pursuant to a Third Amendment to Master Service
          Agreements between DCC, the Company and MDPI, certain
          services provided globally by DCC to subsidiaries of the
          Company were terminated and certain other services
          provided by DCC to specific subsidiaries of the Company
          were extended under similar terms to existing agreements.
          Pursuant to two letter agreements entered into by DCC and
          the Company, the parties set forth (i) a non-exclusive
          list of agreements to be reached prior to the date of the
          purchase of Dow Shares and (ii) certain agreements
          regarding employment matters in Italy.  The above
          descriptions do not purport to be complete and are
          qualified in their entirety by reference to each of the
          foregoing agreements, copies of which are filed as
          Exhibits 6 through 16 hereto.

          ITEM 7.   MATERIAL TO BE FILED AS EXHIBITS.

          Exhibit 1.     Agreement and Plan of Merger, dated as of
                         May 3, 1995, by and among Marion Merrell
                         Dow Inc., The Dow Chemical Company,
                         Hoechst Corporation and H Pharma
                         Acquisition Corp.

          Exhibit 2.     Stock Purchase Agreement, dated as of May
                         3, 1995, among Hoechst Corporation, H
                         Pharma Acquisition Corp., The Dow Chemical
                         Company, RH Acquisition Corp. and Dow
                         Holdings Inc.

          Exhibit 3.     Purchase Agreement, dated as of May 3,
                         1995, among Latin American Pharmaceutical
                         Inc., Dow Quimica Argentina S.A., Dow
                         Quimica Mexicana S.A., Dow Productos
                         Quimicos LTDA, Mineracao e Quimica de
                         Nordeste, Dow Quimica S.A., Merrell
                         Lepetit Farmaceutica Industrial LTDA,
                         Laboratorios Lepetit de Mexico S.A. de
                         C.V. and Roussel Uclaf S.A.

          Exhibit 4.     Press Release, dated May 4, 1995, issued
                         by Hoechst AG.


          Exhibit 5.     Joint Press Release, dated May 4, 1995,
                         issued by Hoechst AG, Marion Merrell Dow
                         Inc. and The Dow Chemical Company.

          Exhibit 6.     Insurance Separation Agreement, dated as
                         of May 3, 1995, among Marion Merrell Dow
                         Inc., The Dow Chemical Company, Dorinco
                         Reinsurance Company, Dorintal Reinsurance
                         Ltd., Timber Insurance Ltd. and Hoechst
                         Corporation.

          Exhibit 7.     Indemnity Agreement, dated as of May 3,
                         1995, between Hoechst Corporation and The
                         Dow Chemical Company.

          Exhibit 8.     Tax Allocation Agreement, dated as of May
                         3, 1995, among The Dow Chemical Company,
                         Hoechst Corporation and Marion Merrell Dow
                         Inc.

          Exhibit 9.     Computerized Process Control Software
                         Agreement (Leases and Services), dated as
                         of May 3, 1995, between Rofan Services
                         Inc. and Marion Merrell Pharmaceuticals
                         Inc.

          Exhibit 10.    Computerized Process Control Software
                         Agreement (Leases and Services), dated as
                         of May 3, 1995, between Rofan Automation
                         and Information Systems B.V. and Gruppo
                         Lepetit S.p.A.

          Exhibit 11.    Computerized Process Control Software
                         Agreement (Leases and Services), dated as
                         of May 3, 1995, between Rofan Automation
                         and Information Systems B.V. and
                         Biochimica Del Salento S.p.A.

          Exhibit 12.    Manufacturing Agreement Amendment, dated
                         as of May 3, 1995, between The Dow
                         Chemical Company and Merrell Dow
                         Pharmaceuticals, Inc.

          Exhibit 13.    Second Amendment to Master Service
                         Agreements, dated as of May 3, 1995,
                         between Marion Merrell Dow Inc., The Dow
                         Chemical Company and Marion Merrell
                         Pharmaceuticals, Inc.

          Exhibit 14.    Third Amendment to Master Service
                         Agreements, dated as of May 3, 1995,
                         between Marion Merrell Dow Inc., The Dow
                         Chemical Company and Merrell Dow
                         Pharmaceuticals, Inc.

          Exhibit 15.    Letter Agreement, dated as of May 3, 1995,
                         between The Dow Chemical Company and
                         Merrell Dow Pharmaceuticals, Inc. and
                         Marion Merrell Dow Inc.

          Exhibit 16.    Letter Agreement, dated as of May 3, 1995,
                         between The Dow Chemical Company and
                         Marion Merrell Dow Inc.


          Exhibit 17.    Joint Filing Agreement, dated as of May
                         11, 1995, between Hoechst Corporation and
                         H Pharma Acquisition Corp.


                                  SIGNATURE

                    After reasonable 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.

                              HOECHST CORPORATION

                              By: /s/ Harry R. Benz
                              Title:  Secretary and Treasurer
                              Date:   May 12, 1995


                                  SIGNATURE

                    After reasonable 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.

                              H PHARMA ACQUISITION CORP.

                              By: /s/ David A. Jenkins
                              Title:  Vice President and Secretary
                              Date:   May 12, 1995


          SCHEDULE 1
                         CERTAIN INFORMATION RELATING
                     TO DIRECTORS AND EXECUTIVE OFFICERS

                    1.  DIRECTORS AND EXECUTIVE OFFICERS OF HOECHST
          AG.  The following table sets forth the name, business
          address, present principal occupation or employment of
          each member of the Supervisory Board and the Board of
          Management (substantially the same as directors and
          executive officers) of Hoechst AG.  All of the members of
          the Supervisory Board and the Board of Management are
          citizens of Germany except for Messrs. Furgler, Hussain,
          and Drew who are citizens of Switzerland, Kuwait and the
          United States, respectively.  Unless otherwise indicated,
          the business address of each of the individuals named
          below is Hoechst AG, 65926 Frankfurt Main, Germany, and
          each occupation set forth opposite the individual's name
          refers to employment with Hoechst AG.

          Name and Business Address     Principal Present Occupation

          SUPERVISORY BOARD

          Erhard Bouillon               Chairman of the Supervisory
                                        Board

          Rolf Brand                    Deputy Chairman of the
                                        Supervisory Board

          Oswald Bommel                 Member of the Supervisory
                                        Board

          Willi Esser                   Mechanic; Member of the
                                        Central Works Council of
                                        Hoechst AG

          Dr.-Ing. E.h.                 Member of the Super-
          Werner H. Dieter              visory Board
          Mannesmann AG
          Postfach 10 36 41
          40027 Dusseldorf
          Germany

          Dietrich-Kurt Frowein         Member of the Board of
          Commerzbank AG                Management of Commerzbank AG
          Postfac 10 05 05
          60005 Frankfurt am Main
          Germany

          Dr. iur. Dr. h.c. mult.       Member of the Super-
          Kurt Furgler                  visory Board
          DoufourstraBe 34
          Scoitzerland
          CH-9000 St. Gallen
          Switzerland

          Prof. Dr. rer. nat.           Member of the Supervisory
          Dr.-Ing. E.h.                 Board


          Heinz Harnisch

          Dr. rer. nat.                 Graduate Chemist; Chairman of
          Ingolf Hornke                 the Senior Executives'
                                        Committee of Hoechst AG

          Hani Abdul-Aziz Hussain       Managing Director - Marketing
          Kuwait Petroleum Corp.        Petrochemical Industries Co.
          P.O. Box 26565                (K.S.C.), Kuwait
          Safat -- Kuwait

          Hermann-Heinz Konrad          Graduate Engineer; Deputy
                                        Chairman of the Senior
                                        Executives' Committee of
                                        Hoechst AG

          Rainer Kumlehn                Electrician; Regional Head of
          IG Chemie-Papier              the IG Chemie-Papier-
          Keramik Hessen                Keramik Hessen
          Wilhelm-Lerner-StraBe 69-7
          60329 Frankfurt am Main
          Germany

          Prof. Dr. rer. nat.           University of Konstanz;
          Dr. rer. nat. h.c.            Biology Department
          Hubert Markl
          HollanderstraBe 22
          78465 Konstanz
          Germany

          Juergen Sarrazin              Chairman of the Board of
          Dresdner Bank AG              Managing Directors of
          Jergen-Ponto Platz            Dresdner Bank AG
          D-60301 Frankfurt am Main
          Germany

          Egon Schaefer                 Electrician; Deputy Chairman
          IG Chemie-Papier-Keramik      of IG Chemie-Papier-Keramik
          Postfach 30
          30030 Hannover
          Germany

          Dr. jur.                      Chairman of the Board of
          Hans-Juergen Schinzler        Management of Muenchener
          Muenchener                    Ruckversicherungs-
          Ruckversicherungs-            Gesellschaft
          Gesellschaft
          80791 Munchen
          Germany

          Konrad Starnecker             Skilled Chemical Plant Opera-
          Furstbert 1                   tive; Member of the Central
          84556 Kastl, Kr. Altotting    Works Council of Hoechst AG
          Germany

          Wolfgang Vetter               Fitter; Member of the Central
          LinkstraBe 1                  Germany Works Council of
          65933 Frankfurt am Main       Works Council of Hoechst AG

          Kurt F. Viermetz              Vice-Chairman of J.P.
          J.P. Morgan & Co. Inc.        Morgan & Co. Inc.
          60 Wall Street
          New York, New York
          102600-0060

          Arnold Weber                  Chairman of the Central Works
          Rauenthaler 31                Council of Hoechst AG
          60529 Frankfurt am Main
          Germany

          BOARD OF MANAGEMENT

          Juergen Dormann               Chairman of the Board
                                        of Management

          Dr. Ernest H. Drew, Ph.D      Member of the Board of
                                        Management; Chemicals,
                                        Specialty Chemicals, Technical
                                        Polymers Divisions

          Prof. Dr. rer. nat.           Member of the Board of
          Utz-Hellmuth Felcht           Management; Director of
                                        Personnel; Research; Herberts,
                                        SGL Carbon, Hoechst CeramTec

          Dr. jur.                      Member of the Board of
          Martin Fruehauf               Management; Finance and
                                        Accounts, Legal Matters,
                                        Patents, Taxes, Insurance

          Dr. rer. pol.                 Deputy Chairman of the
          Guenter Metz                  Board of Management;
                                        Fibres and Fibre
                                        Intermediates, Plastics and
                                        Films Divisions; the Americas

          Dipl.-Kfm.                    Member of the Board
          Justus Mische                 of Management; Europe, Africa;
                                        Materials Management

          Dr. rer. nat.                 Member of the Board
          Karl-Gerhard Seifert          of Management; Pharmaceutical
                                        and Diagnostics Divisions;
                                        Schwarzkopf

          Dr.-Ing.                      Member of the Board
          Ernst Schadow                 of Management; Messer
                                        Griesheim, Uhde; Engineering
                                        and Environmental Protection;
                                        Hoechst Site

          Dipl.-Ing. Horst Waesche      Member of the Board of
                                        Management; Asia; AgrEvo;
                                        Hoechst Veterinar; Informatics
                                        and Communication

                    2.  DIRECTORS AND EXECUTIVE OFFICERS OF HOECHST
          CORPORATION.  The following table sets forth the name and
          present principal occupation or employment of each director
          and executive officer of Hoechst Corporation.  All such
          directors and officers are citizens of the United States,
          except Messrs. Engels, Felcht, Fruehauf, Metz, Schmieder,
          Seifert and Warning who are citizens of Germany.  The
          business address of Messrs. Benz, Engels, Kennedy, Harris,
          Schmieder and Warning is Hoechst Celanese Corporation
          ("HCC"), Route 202-206, P.O. Box 2500, Somerville, New
          Jersey  08876-1258, and the business address of Messrs.
          Drew, Felcht, Fruehauf, Metz and Seifert is Hoechst AG,
          65926 Frankfurt Main and Germany.

           Name/Position with Parent   Principal Present Occupation

           Harry R. Benz               Senior Vice President -
           Director, Secretary and     Finance, Chief Financial
           Treasurer                   Officer and Director - HCC

           Dr. Ernest H. Drew, Ph.D.   See "Directors and Exec-
           Director                    utive Officers of Hoechst AG"
           Karl G. Engels              President, Chief Executive
           Director                    Officer and Director - HCC

           Prof. Dr. rer. nat. Utz-    See "Directors and Exec-
           Hellmuth Felcht             utive Officers of Hoechst AG"
           Director
           Dr. jur. Martin Fruehauf    See "Directors and Executive
           Director                    Officers of Hoechst AG"

           Thomas F. Kennedy           Executive Vice President and
           Director                    Director - HCC

           William B. Harris           Senior Vice President and
           Director                    Director - HCC
           Dr. rer. pol. Guenter Metz  See "Directors and Executive
           Chairman of the Board and   Officers of Hoechst AG"
           President

           Dr. Klaus Schmieder         Vice President and Treasurer
           Assistant Treasurer         - HCC
           Dr. rer. nat. Karl-Gerhard  See "Directors and Executive
           Seifert                     Officers of Hoechst AG"
           Director


           Dr. Klaus Warning           Vice President and Director -
           Director                    HCC

                    3.  DIRECTORS AND EXECUTIVE OFFICERS OF H PHARMA
          ACQUISITION CORP.  The following table sets forth the name
          and present principal occupation or employment of each
          director and executive officer of H Pharma Acquisition Corp.
          All such directors and officers are citizens of the United
          States, except Mr. Schmieder who is a citizen of Germany.
          The business address of each of the individuals named below
          is Route 202-206, P.O. Box 2500, Somerville, New Jersey
          08876-1258.

           Name/Position with         Principal Present Occupation
           Acquisition

           Harry R. Benz              See "Directors and Executive
           Director and President     Officers of Hoechst
                                      Corporation"
           David A. Jenkins           Vice President - General Counsel
           Director, Vice President   and Director - HCC
           and Secretary

           Dr. Klaus Schmieder        See "Directors and Executive
           Vice President and         Officers of Hoechst
           Treasurer                  Corporation"

           Karen J. Weiner            Vice President and General
           Vice President and         Counsel, Life Sciences Group -
           Assistant Secretary        HCC

                                  EXHIBIT INDEX

          Exhibit 1.     Agreement and Plan of Merger, dated as of May
                         3, 1995, by and among Marion Merrell Dow
                         Inc., The Dow Chemical Company, Hoechst
                         Corporation and H Pharma Acquisition Corp.

          Exhibit 2.     Stock Purchase Agreement, dated as of May 3,
                         1995, among Hoechst Corporation, H Pharma
                         Acquisition Corp., The Dow Chemical Company,
                         RH Acquisition Corp. and Dow Holdings Inc.

          Exhibit 3.     Purchase Agreement, dated as of May 3, 1995,
                         among Latin American Pharmaceutical Inc., Dow
                         Quimica Argentina S.A., Dow Quimica Mexicana
                         S.A., Dow Productos Quimicos LTDA, Mineracao
                         e Quimica de Nordeste, Dow Quimica S.A.,
                         Merrell Lepetit Farmaceutica Industrial LTDA,
                         Laboratorios Lepetit de Mexico S.A. de C.V.
                         and Roussel Uclaf S.A.

          Exhibit 4.     Press Release, dated May 4, 1995, issued by
                         Hoechst AG.

          Exhibit 5.     Joint Press Release, dated May 4, 1995,
                         issued by Hoechst AG, Marion Merrell Dow Inc.
                         and The Dow Chemical Company.

          Exhibit 6.     Insurance Separation Agreement, dated as of
                         May 3, 1995, among Marion Merrell Dow Inc.,
                         The Dow Chemical Company, Dorinco Reinsurance
                         Company, Dorintal Reinsurance Ltd., Timber
                         Insurance Ltd. and Hoechst Corporation.

          Exhibit 7.     Indemnity Agreement, dated as of May 3, 1995,
                         between Hoechst Corporation and The Dow
                         Chemical Company.

          Exhibit 8.     Tax Allocation Agreement, dated as of May 3,
                         1995, among The Dow Chemical Company, Hoechst
                         Corporation and Marion Merrell Dow Inc.

          Exhibit 9.     Computerized Process Control Software
                         Agreement (Leases and Services), dated as of
                         May 3, 1995, between Rofan Services Inc. and
                         Marion Merrell Pharmaceuticals Inc.

          Exhibit 10.    Computerized Process Control Software
                         Agreement (Leases and Services), dated as of
                         May 3, 1995, between Rofan Automation and
                         Information Systems B.V. and Gruppo Lepetit
                         S.p.A.

          Exhibit 11.    Computerized Process Control Software
                         Agreement (Leases and Services), dated as of
                         May 3, 1995, between Rofan Automation and
                         Information Systems B.V. and Biochimica Del
                         Salento S.p.A.

          Exhibit 12.    Manufacturing Agreement Amendment, dated as
                         of May 3, 1995, between The Dow Chemical
                         Company and Merrell Dow Pharmaceuticals, Inc.


          Exhibit 13.    Second Amendment to Master Service
                         Agreements, dated as of May 3, 1995, between
                         Marion Merrell Dow Inc., The Dow Chemical
                         Company and Marion Merrell Pharmaceuticals,
                         Inc.

          Exhibit 14.    Third Amendment to Master Service Agreements,
                         dated as of May 3, 1995, between Marion
                         Merrell Dow Inc., The Dow Chemical Company
                         and Merrell Dow Pharmaceuticals, Inc.

          Exhibit 15.    Letter Agreement, dated as of May 3, 1995,
                         between The Dow Chemical Company and Merrell
                         Dow Pharmaceuticals, Inc. and Marion Merrell
                         Dow Inc.

          Exhibit 16.    Letter Agreement, dated as of May 3, 1995,
                         between The Dow Chemical Company and Marion
                         Merrell Dow Inc.

          Exhibit 17.    Joint Filing Agreement, dated as of May 11,
                         1995, between Hoechst Corporation and H
                         Pharma Acquisition Corp.




                                                          EXHIBIT 1


                                                     CONFORMED COPY

          AGREEMENT AND PLAN OF MERGER

                    THIS AGREEMENT AND PLAN OF MERGER, dated as of
          May 3, 1995, is by and among Marion Merrell Dow Inc., a
          Delaware corporation (the "Company"), The Dow Chemical
          Company, a Delaware corporation ("DCC"), Hoechst
          Corporation, a Delaware corporation ("Parent"), and H
          Pharma Acquisition Corp., a Delaware corporation
          ("Acquisition").

                    WHEREAS, the Boards of Directors of Parent,
          Acquisition, DCC and the Company have each approved the
          acquisition of the Company by Parent upon the terms and
          subject to the conditions set forth in this Agreement;

                    WHEREAS, in furtherance thereof, upon the terms
          and subject to the conditions of this Agreement, (i)
          Acquisition would be merged (the "Merger") with and into
          the Company in accordance with the General Corporation
          Law of the State of Delaware ("Delaware Law") and (ii)
          each share of common stock, par value $0.10 per share, of
          the Company (the "Shares"), issued and outstanding
          immediately prior to the Effective Time (as defined
          herein) would, except as otherwise expressly provided
          herein, be converted into the right to receive the Merger
          Consideration (as defined herein); and

                    WHEREAS, simultaneously with the execution and
          delivery hereof, Parent, Acquisition, DCC, RH Acquisition
          Corp., a Delaware corporation and a wholly owned
          subsidiary of DCC ("RHAC"), and Dow Holdings Inc., a
          Delaware corporation and a wholly owned subsidiary of DCC
          ("DHI" and, collectively with DCC and RHAC, "Dow") are
          entering into a stock purchase agreement (the "Stock
          Purchase Agreement") pursuant to which Dow has agreed,
          among other things, to sell to Acquisition all of the
          196,865,790 Shares held by Dow (the "Dow Shares").

                    NOW, THEREFORE, in consideration of the
          foregoing and the mutual covenants and agreements herein
          contained, and intending to be legally bound hereby, the
          Company, DCC, Parent and Acquisition hereby agree as
          follows.

                                  ARTICLE I

                                  THE MERGER

                    Section 1.1  The Merger.  At the Effective Time
          and upon the terms and subject to the conditions of this
          Agreement and Delaware Law, Acquisition shall be merged
          with and into the Company, whereupon the separate
          corporate existence of Acquisition shall cease and the
          Company shall continue as the surviving corporation (the
          "Surviving Corporation").  At Acquisition's option,
          subject to Section 9.2 hereof, the Merger may be
          structured so that any direct subsidiary of Parent other
          than Acquisition is merged with and into the Company.  In
          the event of such election, the parties agree to execute
          an appropriate amendment to this Agreement in order to
          reflect such election.

                    Section 1.2  Effective Time; Closing.  As soon
          as practicable after the satisfaction or waiver of the
          conditions set forth in Article VII, the parties hereto
          will file a certificate of merger with the Secretary of
          State of the State of Delaware and make all other filings
          or recordings required by Delaware Law in connection with
          the Merger.  The Merger shall become effective at such
          time as the certificate of merger is duly filed with the
          Secretary of State of the State of Delaware (the
          "Effective Time").  Prior to such filing, a closing (the
          "Closing") shall be held at the offices of Skadden, Arps,
          Slate, Meagher & Flom, 919 Third Avenue, New York, New
          York 10022, or such other place as the parties shall
          agree, for the purpose of confirming the satisfaction or
          waiver of the conditions set forth in Article VII.  The
          date on which the Closing occurs is referred to herein as
          the "Closing Date".

                    Section 1.3  Effects of the Merger; Subsequent
          Actions.  (a) The Merger shall have the effects set forth
          in Delaware Law.  Without limiting the generality of the
          foregoing, and subject thereto and any other applicable
          laws, at the Effective Time, all the properties, rights,
          privileges, powers and franchises of the Company and
          Acquisition shall vest in the Surviving Corporation, and
          all debts, liabilities, restrictions, disabilities and
          duties of the Company and Acquisition shall become the
          debts, liabilities, restrictions, disabilities and duties
          of the Surviving Corporation.

                         (b)  If, at any time after the Effective
          Time, the Surviving Corporation shall consider or be
          advised that any deeds, bills of sale, assignments,
          assurances or any other actions or things are necessary
          or desirable to vest, perfect or confirm of record or
          otherwise in the Surviving Corporation its right, title
          or interest in, to or under any of the rights, properties
          or assets of the Company or Acquisition acquired or to be
          acquired by the Surviving Corporation as a result of or
          in connection with the Merger, or otherwise to carry out
          this Agreement, the officers and directors of the
          Surviving Corporation shall be authorized to execute and
          deliver, in the name and on behalf of the Company or
          Acquisition, all such deeds, bills of sale, assignments,
          assumption agreements and assurances and to take and do,
          in the name and on behalf of each of such corporations or
          otherwise, all such other actions and things as may be
          necessary or desirable to vest, perfect or confirm any
          and all right, title and interest in, to and under such
          rights, properties or assets of the Surviving Corporation
          or otherwise to carry out this Agreement.

                    Section 1.4  Certificate of Incorporation and
          By-Laws.  (a) The Certificate of Incorporation of
          Acquisition in effect immediately prior to the Effective
          Time shall be the Certificate of Incorporation of the
          Surviving Corporation until amended in accordance with
          applicable law; provided that the name of the Surviving
          Corporation as set forth in its Certificate of
          Incorporation shall be changed to a new name to be
          determined by Acquisition prior to the Effective Time.

                         (b)  The By-Laws of Acquisition in effect
          at the Effective Time shall be the By-Laws of the
          Surviving Corporation until amended in accordance with
          applicable law.

                    Section 1.5  Directors.  The directors of
          Acquisition at the Effective Time shall be the initial
          directors of the Surviving Corporation, each to hold
          office in accordance with the Certificate of
          Incorporation and By-Laws of the Surviving Corporation
          and until his or her successor is duly elected and
          qualified.

                    Section 1.6  Officers.  The officers of the
          Company at the Effective Time, and any additional
          individuals designated by Parent, shall be the initial
          officers of the Surviving Corporation, each to hold
          office in accordance with the Certificate of
          Incorporation and By-Laws of the Surviving Corporation
          and until his or her successor is duly appointed and
          qualified.

                    Section 1.7  Conversion of Shares.  At the
          Effective Time, by virtue of the Merger and without any
          action on the part of Parent, Acquisition, the Company or
          the holder of any of the following securities:

                         (a)  Each Share issued and outstanding
          immediately prior to the Effective Time (other than
          Shares to be cancelled pursuant to Section 1.7(b) hereof
          and Dissenting Shares (as hereinafter defined)), shall by
          virtue of the Merger and without any action on the part
          of the holder thereof be converted into the right to
          receive the Merger Consideration (as defined below),
          without interest thereon.  As used herein, "Merger
          Consideration" means the sum (rounded up to the nearest
          $0.01) of $25.75 in cash plus an Additional Contingent
          Amount (as defined below); provided, that the Additional
          Contingent Amount shall be payable only if Acquisition,
          Parent or their affiliates purchase the Dow Shares at
          least one (1) day prior to the Effective Time.  As used
          herein, "Additional Contingent Amount" means a cash
          amount equal to $0.25 multiplied by a fraction (i) the
          numerator of which shall be the number of whole days from
          the record date for the regular quarterly cash dividend
          on the Shares next preceding the date on which the
          Effective Time occurs (excluding such record date) to and
          including the date on which the Effective Time occurs and
          (ii) the denominator of which shall be the number of
          whole days in the full quarter during which the Effective
          Time occurs.

                         (b)  Each Share which is issued and
          outstanding immediately prior to the Effective Time and
          owned by Parent or Acquisition or any direct or indirect
          subsidiary of Parent or Acquisition, or which is held in
          the treasury of the Company or any of its subsidiaries,
          shall be cancelled and retired and no payment of any
          consideration shall be made with respect thereto.

                         (c)  Each share of Common Stock, par value
          $0.01 per share, of Acquisition issued and outstanding
          immediately prior to the Effective Time shall be
          converted into and become one validly issued, fully paid
          and nonassessable share of Common Stock, par value $0.01
          per share, of the Surviving Corporation.

                    Section 1.8  Company Plans.  (a) Effective as
          of the Effective Time, each outstanding option (including
          any related stock appreciation right)(an "Employee
          Option") issued, awarded or granted pursuant to the
          Company's 1992 Incentive Compensation Plan, the 1985
          Associate Stock Option Plan or the Non-Qualified Employee
          Stock Option Plan (the "Company Plans") to purchase
          Shares shall be eliminated by the Company, and each
          holder of an eliminated Employee Option shall be entitled
          to receive from the Company (or, at Parent's option, any
          subsidiary of the Company) in consideration for the
          elimination of such Employee Option an amount in cash
          (less applicable withholding Taxes (as defined in Section
          3.10 hereof)) equal to the product of (i) the number of
          Shares previously subject to such Employee Option and
          (ii) the excess, if any, of the Merger Consideration over
          the exercise price per Share previously subject to such
          Employee Option; provided, that each Employee Option the
          exercise price per Share of which is equal to or greater
          than the Merger Consideration shall be eliminated in
          consideration for a cash payment equal to the product of
          $0.01 multiplied by the number of Shares previously
          subject to such Employee Option. 

                         (b)  Each outstanding performance share
          ("Performance Share") granted under the Company's 1992
          Incentive Compensation Plan (the "Incentive Plan") shall
          become fully vested in accordance with the terms of the
          Incentive Plan and, effective as of the Effective Time,
          shall, unless theretofore paid and eliminated in
          accordance with the terms thereof, be eliminated by the
          Company, and each holder of an eliminated Performance
          Share shall be entitled to receive from the Company (or,
          at Parent's option, any subsidiary of the Company) an
          amount in cash (less applicable withholding Taxes) equal
          to the product of (i) the Merger Consideration and (ii)
          the number of Performance Shares previously held by such
          holder.

                    Section 1.9  Stockholders' Meeting.  The
          Company, acting through its Board of Directors (the
          "Board"), shall in accordance with applicable law as soon
          as practicable following the date hereof:

                              (i)  subject to applicable law,
               duly call, give notice of, convene and hold an
               annual or special meeting of its stockholders
               (the "Stockholders' Meeting") for the purpose
               of considering and taking action upon this
               Agreement;

                             (ii)  subject to the fiduciary
               duties of the Board under applicable law,
               include in the Proxy Statement (as defined in
               Section 3.7) the recommendation of the Board
               that stockholders of the Company vote in favor
               of adoption of this Agreement and the
               transactions contemplated hereby; and

                            (iii)  subject to the fiduciary
               duties of the Board under applicable law, use
               its reasonable best efforts to obtain the
               necessary approvals by its stockholders of this
               Agreement and the transactions contemplated
               hereby.

                    At such meeting, each of DCC, Parent and
          Acquisition will vote (and will cause each of their
          respective affiliates to vote) all Shares owned by it (or
          their respective affiliates) in favor of adoption of this
          Agreement and the transactions contemplated hereby.

                                  ARTICLE II

                    DISSENTING SHARES; EXCHANGE OF SHARES

                    Section 2.1  Dissenting Shares. 
          Notwithstanding anything in this Agreement to the
          contrary, Shares outstanding immediately prior to the
          Effective Time and held by a holder who has not voted in
          favor of the Merger or consented thereto in writing and
          who has demanded appraisal for such Shares in accordance
          with Section 262 of Delaware Law ("Dissenting Shares")
          shall not be converted into a right to receive the Merger
          Consideration unless such holder fails to perfect or
          withdraws or otherwise loses his right to appraisal.  If,
          after the Effective Time, such holder fails to perfect or
          withdraws or loses his right to appraisal, such Shares
          shall be treated as if they had been converted as of the
          Effective Time into a right to receive the Merger
          Consideration without interest thereon.  The Company
          shall give Acquisition prompt notice of any demands
          received by the Company for appraisal of Shares, and,
          prior to the Effective Time, Acquisition shall have the
          right to participate in all negotiations and proceedings
          with respect to such demands.  Prior to the Effective
          Time, the Company shall not, except with the prior
          written consent of Acquisition, make any payment with
          respect to, or settle or offer to settle, any such
          demands.

                    Section 2.2  Exchange of Certificates.      
          (a) Prior to the Effective Time, Parent shall designate a
          bank or trust company reasonably acceptable to the
          Company to act as paying agent (the "Paying Agent") in
          effecting the exchange for the Merger Consideration of
          certificates (the "Certificates") that, prior to the
          Effective Time, represented Shares.  Upon the surrender
          of each such Certificate formerly representing Shares,
          together with a properly completed letter of transmittal,
          the Paying Agent shall pay the holder of such Certificate
          the Merger Consideration multiplied by the number of
          Shares formerly represented by such Certificate, in
          exchange therefor, and such Certificate shall forthwith
          be cancelled.  Until so surrendered and exchanged, each
          such Certificate (other than Certificates representing
          Dissenting Shares or Shares held by Parent, Acquisition
          or the Company, or any direct or indirect subsidiary
          thereof) shall represent solely the right to receive the
          Merger Consideration.  No interest shall be paid or
          accrue on the Merger Consideration.  If the Merger
          Consideration (or any portion thereof) is to be delivered
          to any person other than the person in whose name the
          Certificate formerly representing Shares surrendered in
          exchange therefor is registered, it shall be a condition
          to such exchange that the Certificate so surrendered
          shall be properly endorsed or otherwise be in proper form
          for transfer and that the person requesting such exchange
          shall pay to the Paying Agent any transfer or other Taxes
          required by reason of the payment of the Merger
          Consideration to a person other than the registered
          holder of the Certificate surrendered, or shall establish
          to the satisfaction of the Paying Agent that such Tax has
          been paid or is not applicable.

                         (b)  Prior to the Effective Time, Parent
          or Acquisition shall deposit, or cause to be deposited,
          in trust with the Paying Agent the Merger Consideration
          to which holders of Shares shall be entitled at the
          Effective Time pursuant to Section 1.7(a) hereof;
          provided that no such deposit shall relieve Parent of its
          obligation to pay the Merger Consideration pursuant to
          Section 1.7(a). 

                         (c)  The Merger Consideration shall be
          invested by the Paying Agent, as directed by Parent,
          provided such investments shall be limited to direct
          obligations of the United States of America, obligations
          for which the full faith and credit of the United States
          of America is pledged to provide for the payment of
          principal and interest, commercial paper rated of the
          highest quality by Moody's Investors Services, Inc. or
          Standard & Poor's Corporation, or certificates of deposit
          issued by a commercial bank having at least
          $1,000,000,000 in assets; provided, that no loss on
          investment made pursuant to this Section 2.2(c) shall
          relieve Parent or Acquisition of its obligation to pay
          the Merger Consideration pursuant to Section 1.7(a).

                         (d)  Promptly following the date which is
          six months after the Effective Time, the Paying Agent
          shall deliver to Parent all cash and documents in its
          possession relating to the transactions described in this
          Agreement, and the Paying Agent's duties shall terminate. 
          Thereafter, each holder of a Certificate formerly
          representing a Share may surrender such Certificate to
          the Surviving Corporation and (subject to applicable
          abandoned property, escheat and similar laws) receive in
          exchange therefor the Merger Consideration, without any
          interest thereon.

                         (e)  Promptly after the Effective Time,
          the Paying Agent shall mail to each record holder of
          Certificates that immediately prior to the Effective Time
          represented Shares a form of letter of transmittal and
          instructions for use in surrendering such Certificates
          and receiving the Merger Consideration in exchange
          therefor.

                         (f)  After the Effective Time, there shall
          be no transfers on the stock transfer books of the
          Surviving Corporation of any Shares.  If, after the
          Effective Time, Certificates formerly representing Shares
          are presented to the Surviving Corporation or the Paying
          Agent, they shall be cancelled and exchanged for the
          Merger Consideration, as provided in this Article II,
          subject to applicable law in the case of Dissenting
          Shares.

                                 ARTICLE III

                REPRESENTATIONS AND WARRANTIES OF THE COMPANY

                    The Company represents and warrants to Parent
          and Acquisition as follows:

                    Section 3.1  Organization and Qualification;
          Subsidiaries.  (a)  Each of the Company and its
          subsidiaries is a corporation duly organized, validly
          existing and in good standing under the laws of the
          jurisdiction of its incorporation and has all requisite
          corporate power and authority to own, lease and operate
          its properties and to carry on its business as now being
          conducted, except where the failure to be so organized,
          existing and in good standing or to have such power and
          authority would not, individually or in the aggregate,
          have a material adverse effect on the business, results
          of operations (on an annualized basis) or financial
          condition of the Company and its subsidiaries, taken as a
          whole (a "Material Adverse Effect").  Without limiting
          the generality of the foregoing definition of "Material
          Adverse Effect", such definition shall specifically
          include adverse consequences to earnings or financial
          condition in excess of $75 million to the Company and its
          subsidiaries, taken as a whole, but shall specifically
          exclude adverse consequences to earnings and financial
          condition of $75 million or less unless such adverse
          consequences also constitute a material adverse effect on
          the business, results of operations (on an annualized
          basis) or financial condition of the Company and its
          subsidiaries, taken as a whole.  "Material Adverse
          Effect" shall not mean or include any of the events set
          forth on Schedule 3.1(a) or any of the transactions
          effected pursuant to this Agreement.

                         (b)  Each of the Company and its
          subsidiaries is duly qualified or licensed and in good
          standing to do business in each jurisdiction (including
          any foreign country) in which the property owned, leased
          or operated by it or the nature of the business conducted
          by it makes such qualification or licensing necessary,
          except where the failure to be so duly qualified or
          licensed and in good standing would not, individually or
          in the aggregate, have a Material Adverse Effect.

                         (c)  The Company has heretofore furnished
          or made available to Parent complete and correct copies
          of the Company's Restated Certificate of Incorporation
          and By-Laws and the equivalent organizational documents
          of each of its subsidiaries, each as amended to the date
          hereof, as requested by Parent.  Such Restated
          Certificate of Incorporation, By-Laws and equivalent
          organizational documents are in full force and effect. 
          The Company is not in violation of any of the provisions
          of its Restated Certificate of Incorporation or By-Laws
          and no subsidiary of the Company is in violation of any
          of the provisions of such subsidiary's equivalent
          organizational documents.

                         (d)  The Company has heretofore furnished
          or made available to Parent a complete and correct list
          of the subsidiaries of the Company, which list sets forth
          the amount of capital stock of or other equity interests
          in such subsidiaries owned by the Company, directly or
          indirectly.  Except as set forth in Schedule 3.1(d), no
          entity in which the Company owns, directly or indirectly,
          less than a 50% equity interest is, individually or when
          taken together with all other such entities, material to
          the business of the Company and its subsidiaries, taken
          as a whole.

                    Section 3.2  Capitalization of the Company and
          its Subsidiaries.  The authorized capital stock of the
          Company consists of (i) 350,000,000 Shares of which, as
          of April 28, 1995, 277,097,048 Shares were issued and
          outstanding (including 1,992,600 Shares subject to
          restrictions issued pursuant to employee benefit plans of
          the Company and its subsidiaries or otherwise) and (ii)
          8,000,000 shares of Preferred Stock, par value $1.00 per
          share, of which, as of April 28, 1995, 2,769,670 shares
          of Series A ESOP Convertible Preferred Stock (the "Series
          A Preferred Shares") were issued and outstanding.  All
          outstanding shares of capital stock of the Company have
          been validly issued, and are fully paid, nonassessable
          and free of preemptive rights.  As of April 28, 1995,
          Employee Options to purchase an aggregate of 22,213,415
          Shares were outstanding and the weighted average exercise
          price of such Employee Options was $22.86 per Share.  As
          of April 28, 1995, 2,769,670 Shares were reserved for
          issuance upon conversion of the Series A Preferred
          Shares.  Each Series A Preferred Share is convertible
          into one Share.  Except as set forth above or in Schedule
          3.2, and except as a result of the exercise of Employee
          Options outstanding as of April 28, 1995, there are
          outstanding (i) no shares of capital stock or other
          voting securities of the Company, (ii) no securities of
          the Company convertible into or exchangeable for shares
          of capital stock or voting securities of the Company,
          (iii) no options, subscriptions, warrants, convertible
          securities, calls or other rights to acquire from the
          Company, and no obligation of the Company to issue,
          deliver or sell any capital stock, voting securities or
          securities convertible into or exchangeable for capital
          stock or voting securities of the Company and (iv) no
          equity equivalents, performance shares, interests in the
          ownership or earnings of the Company or other similar
          rights issued by the Company (collectively, "Company
          Securities").  Except as set forth on Schedule 3.2 or as
          contemplated by this Agreement, there are no outstanding
          obligations of the Company or any of its subsidiaries to
          repurchase, redeem or otherwise acquire any Company
          Securities, other than the Company's obligations
          hereunder and under the Restated Certificate of
          Incorporation of the Company to redeem the Series A
          Preferred Shares.  Except as set forth in Schedule 3.2,
          each of the outstanding shares of capital stock of each
          of the Company's subsidiaries is duly authorized, validly
          issued, fully paid and nonassessable and is directly or
          indirectly owned by the Company, free and clear of all
          security interests, liens, claims, pledges, charges,
          voting agreements or other encumbrances of any nature
          whatsoever (collectively, "Liens").  Except as set forth
          in Schedule 3.2, there are no existing options, calls or
          commitments of any character relating to the issued or
          unissued capital stock or other equity securities of any
          subsidiary of the Company.  

                    Section 3.3  Authority Relative to this
          Agreement; Fairness Opinion.  The Company has all
          necessary corporate power and authority to execute and
          deliver this Agreement, to perform its obligations
          hereunder and to consummate the transactions contemplated
          hereby.  The Board, at a meeting duly called and held on
          May 3, 1995,  (i) determined that this Agreement and the
          transactions contemplated hereby, including the Merger,
          are in the best interests of the stockholders of the
          Company (other than DCC, Parent, Acquisition or their
          affiliates), (ii) approved this Agreement and the
          transactions contemplated hereby, including the Merger,
          (iii) resolved, subject to their fiduciary duties under
          applicable law, to recommend that the stockholders of the
          Company approve and adopt this Agreement and the Merger
          and (iv) resolved to redeem, effective immediately prior
          to the Merger, all of the outstanding Series A Preferred
          Shares.  Lehman Brothers Inc. ("Lehman Brothers") has
          delivered to the Board its written opinion dated May 3,
          1995 to the effect that, as of the date of such opinion,
          the consideration to be received by the holders of Shares
          (other than DCC, Parent, Acquisition or their affiliates)
          pursuant to the Merger is fair to such holders from a
          financial point of view.  As of the date hereof, the
          Company has been authorized by Lehman Brothers to permit
          the inclusion of such fairness opinion in the Proxy
          Statement referred to in Section 3.7.  The execution,
          delivery and performance of this Agreement and the
          consummation of the transactions contemplated hereby have
          been duly and validly authorized by the Board and no
          other corporate proceedings on the part of the Company
          are necessary to authorize this Agreement or to
          consummate the transactions so contemplated (other than,
          with respect to the Merger, the approval and adoption of
          this Agreement by the holders of a majority of the
          outstanding Shares and Series A Preferred Shares (voting
          together as a single class) and the filing of the
          appropriate merger documents as required by Delaware
          Law).  The Board has taken all action necessary with
          respect to the transactions contemplated hereby and by
          the Stock Purchase Agreement so as to render inapplicable
          to such transactions, including, without limitation, the
          Merger and the purchase of Shares pursuant to the Stock
          Purchase Agreement, the restrictions on business
          combinations contained in Section 203 of the Delaware Law
          and the supermajority voting requirements contained in
          Article Fifteenth of the Company's Restated Certificate
          of Incorporation.  This Agreement has been duly and
          validly executed and delivered by the Company and,
          assuming it constitutes a valid and binding agreement of
          the other parties hereto, constitutes a legal, valid and
          binding agreement of the Company enforceable against the
          Company in accordance with its terms. 

                    Section 3.4  Non-Contravention; Required
          Filings and Consents.  (a) Except as set forth in
          Schedule 3.4, the execution, delivery and performance by
          the Company of this Agreement and the consummation of the
          transactions contemplated hereby (including the Merger)
          do not and will not (i) contravene or conflict with the
          Restated Certificate of Incorporation or By-Laws of the
          Company or the equivalent organizational documents of any
          of its subsidiaries; (ii) assuming that all consents,
          authorizations and approvals contemplated by subsection
          (b) below have been obtained and all filings described
          therein have been made, contravene or conflict with or
          constitute a violation of any provision of any law,
          regulation, judgment, injunction, order or decree binding
          upon or applicable to the Company, any of its
          subsidiaries or any of their respective properties; (iii)
          conflict with, or result in the breach or termination of
          any provision of or constitute a default (with or without
          the giving of notice or the lapse of time or both) under,
          or give rise to any right of termination, cancellation,
          or loss of any benefit to which the Company or any of its
          subsidiaries is entitled under any provision of any
          agreement, contract, license or other instrument binding
          upon the Company, any of its subsidiaries or any of their
          respective properties, or allow the acceleration of the
          performance of, any obligation of the Company or any of
          its subsidiaries under any indenture, mortgage, deed of
          trust, lease, license, contract, instrument or other
          agreement to which the Company or any of its subsidiaries
          is a party or by which the Company or any of its
          subsidiaries or any of their respective assets or
          properties is subject or bound; or (iv) result in the
          creation or imposition of any Lien on any asset of the
          Company or any of its subsidiaries, except in the case of
          clauses (ii), (iii) and (iv) for any such contraventions,
          conflicts, violations, breaches, terminations, defaults,
          cancellations, losses, accelerations and Liens which
          would not individually or in the aggregate have a
          Material Adverse Effect or be reasonably expected to
          prevent the consummation by the Company of the
          transactions contemplated by this Agreement. 

                         (b)  The execution, delivery and
          performance by the Company of this Agreement and the
          consummation of the transactions contemplated hereby
          (including the Merger) by the Company require no action
          by or in respect of, or filing with, any governmental
          body, agency, official or authority (either domestic or
          foreign) other than (i) the filing of a certificate of
          merger in accordance with Delaware Law; (ii) compliance
          with any applicable requirements of the Hart-Scott-Rodino
          Antitrust Improvements Act of 1976, as amended (the "HSR
          Act"), Regulation (EEC) No. 4064/89 of the European
          Community (the "EC Merger Regulation"), and the Canadian
          Competition Act; (iii) the filing of a notice pursuant to
          Section 721 of the Defense Production Act of 1950, as
          amended ("Exon-Florio"); (iv) compliance with any
          applicable requirements of the Securities Exchange Act of
          1934, as amended (the "Exchange Act"), and state
          securities, takeover and Blue Sky laws; and (v) such
          actions or filings which, if not taken or made, would not
          individually or in the aggregate have a Material Adverse
          Effect or be reasonably expected to prevent the
          consummation by the Company of the transactions
          contemplated by this Agreement.

                    Section 3.5  SEC Reports.  (a) The Company has
          filed all required forms, reports and documents with the
          Securities and Exchange Commission (the "SEC") since
          January 1, 1992.  The Company has made available to
          Parent, in the form filed with the SEC, the Company's (i)
          Annual Reports on Form 10-K for the fiscal years ended
          December 31, 1994, 1993 and 1992, (ii) Quarterly Reports
          on Form 10-Q for the quarters ended March 31, 1994, June
          30, 1994 and September 30, 1994, (iii) all proxy
          statements relating to meetings of the Company's
          stockholders since December 31, 1992 and (iv) all other
          reports or registration statements (other than reports on
          Form 10-Q not referred to in (ii) above) filed by the
          Company with the SEC since December 31, 1992
          (collectively, the "SEC Reports").  The SEC Reports were
          prepared in accordance with all applicable requirements
          of the Securities Act of 1933, as amended (the
          "Securities Act"), and the Exchange Act.  As of their
          respective dates, none of the SEC Reports, including,
          without limitation, any financial statements or schedules
          included therein, contained any untrue statement of a
          material fact or omitted to state a material fact
          required to be stated therein or necessary in order to
          make the statements therein, in light of the
          circumstances under which they were made, not misleading. 
          The audited consolidated financial statements and
          unaudited consolidated interim financial statements of
          the Company included in the SEC Reports fairly present,
          in conformity with generally accepted accounting
          principles applied on a consistent basis (except as may
          be indicated in the notes thereto), the consolidated
          financial position of the Company and its consolidated
          subsidiaries as of the dates thereof and their
          consolidated results of operations and cash flows for the
          periods then ended (subject to normal year-end
          adjustments and the lack of footnote disclosure (to the
          extent permitted by SEC rules) in the case of any
          unaudited interim financial statements and subject to any
          subsequent reclassification as indicated in SEC Reports
          filed prior to the date hereof).  The Company has
          heretofore provided or made available complete and
          correct copies of each of the SEC Reports to Parent.

                         (b)  Except as disclosed in the SEC
          Reports filed prior to the date of this Agreement or as
          set forth in Schedule 3.5(b), the Company and its
          subsidiaries have no liabilities of any nature (whether
          accrued, absolute, contingent or otherwise), except for
          liabilities incurred in the ordinary course of business
          since December 31, 1994 or liabilities which would not,
          individually or in the aggregate, have a Material Adverse
          Effect.  

                    Section 3.6  Absence of Certain Changes; Net
          Cash Position; Derivatives.  (a) Since December 31, 1994,
          except as disclosed in the SEC Reports filed prior to the
          date of this Agreement or as set forth in Schedule
          3.6(a), neither the Company nor any of its subsidiaries
          has (i) declared, set aside or paid any dividend or other
          distribution (whether in cash, stock, or property or any
          combination thereof) in respect of its capital stock
          (other than cash dividends declared and paid on the
          Series A Preferred Shares in accordance with their terms
          and on the Shares to holders of record on March 31, 1995
          in the amount of $0.25 per Share), (ii) entered into,
          adopted or amended or materially increased the benefits
          paid or payable under any severance, termination or
          deferred compensation agreement or arrangement with any
          director, officer or employee, (iii) changed any of the
          accounting principles or practices used by the Company,
          except as required as a result of a change in law, SEC
          guidelines or generally accepted accounting principles,
          (iv) settled litigations for amounts in excess of $3
          million in the aggregate, or (v) except as previously
          disclosed to Parent, entered into any transaction, or
          conducted its business or operations, except in the
          ordinary course of business consistent with past practice
          or where such transactions or conduct would not,
          individually or in the aggregate, have a Material Adverse
          Effect.  Since December 31, 1994, there has not been any
          material adverse change in the business, results of
          operations (on an annualized basis) or financial
          condition of the Company and its subsidiaries, taken as a
          whole.  For purposes of this Section 3.6(a), "material
          adverse change" shall be construed without reference to
          the definition of Material Adverse Effect and shall not
          mean or include any of the events set forth in Schedule
          3.1(a) or any of the transactions effected pursuant to
          this Agreement.

                         (b)  As of the date of this Agreement,
          subject to the last sentence of this Section 3.6(b), the
          Net Cash of the Company and its subsidiaries is at least
          $250 million.  As used herein, "Net Cash" means the
          excess of (i) the sum of the cash, cash equivalents,
          short term investments, notes receivable (excluding trade
          notes receivable) and long term readily marketable
          financial assets of the Company and its subsidiaries over
          (ii) the sum of the accounts payable to DCC and its
          affiliates (other than the Company and its subsidiaries),
          dividends payable, notes payable (excluding trade notes
          payable), long term debt (including current portion of
          long term debt) and any other balance sheet liabilities
          for borrowed money of the Company and its subsidiaries,
          in each case determined in conformity with generally
          accepted accounting principles.  The accounts payable to
          DCC and its affiliates (other than the Company and its
          subsidiaries) included in the $250 million Net Cash
          referred to above total $58 million and are as of March
          31, 1995.

                         (c)  Schedule 3.6(c) sets forth a complete
          and correct list of all Derivative Financial Instruments
          (including the face, contract or notional amount of and
          any open position relating to such Derivative Financial
          Instruments and a brief summary of the nature and terms
          thereof) as of April 30, 1995 to which the Company or any
          of its subsidiaries is a party or by which the Company or
          any of its subsidiaries or any of their respective assets
          or properties is subject or bound (including, without
          limitation, funds of the Company or any of its
          subsidiaries invested by any other person).  For purposes
          of this Agreement, "Derivative Financial Instrument"
          means any futures, forward, swap, option or swaption
          contract, or any other financial instrument with similar
          characteristics and/or generally characterized by the
          financial community as a "derivative" security.

                    Section 3.7  Proxy Statement; Schedule 13E-3. 
          The proxy or information statement or similar materials
          distributed to the Company's stockholders in connection
          with the Merger, including any amendments or supplements
          thereto (the "Proxy Statement"), shall not, at the time
          filed with the SEC, at the time mailed to the Company's
          stockholders, at the time of the Stockholders' Meeting or
          at the Effective Time, 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.  Notwithstanding the
          foregoing, the Company makes no representation or
          warranty with respect to any information provided by
          Parent or Acquisition specifically for use in the Proxy
          Statement.  The Proxy Statement will comply as to form in
          all material respects with the provisions of the Exchange
          Act and the rules and regulations thereunder.  None of
          the information provided by the Company specifically for
          use in any Rule 13e-3 Transaction Statement on Schedule
          13E-3 required to be filed with the SEC under the
          Exchange Act in connection with the Merger (the "Schedule
          13E-3") will at the time the Schedule 13E-3 or any
          amendments thereto are filed with the SEC, 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.

                    Section 3.8  Finder's Fee.  No broker, finder,
          investment banker or other intermediary (other than
          Lehman Brothers) is entitled to any brokerage, finder's
          or other fee or commission in connection with the
          transactions contemplated by this Agreement or by the
          Stock Purchase Agreement based upon arrangements made by
          and on behalf of the Company.  The Company has heretofore
          furnished to Parent a complete and correct copy of all
          agreements between the Company and Lehman Brothers
          pursuant to which Lehman Brothers would be entitled to
          any payment relating to the transactions contemplated
          hereby or by the Stock Purchase Agreement.

                    Section 3.9  Absence of Litigation.  Except as
          disclosed in the SEC Reports filed prior to the date
          hereof, as of the date hereof, there is no action, suit,
          claim, investigation or proceeding pending against, or to
          the knowledge of the Company, threatened against, the
          Company or any of its subsidiaries or any of their
          respective properties before any court or arbitrator or
          any administrative, regulatory or governmental body, or
          any agency or official which, individually or in the
          aggregate, would reasonably be expected to have a
          Material Adverse Effect.  Except as disclosed in the SEC
          Reports filed prior to the date of this Agreement or in
          Schedule 3.9, as of the date hereof, there is no action,
          suit, claim, investigation or proceeding pending against,
          or to the knowledge of the Company, threatened against,
          the Company or any of its subsidiaries or any of their
          respective properties before any court or arbitrator or
          any administrative, regulatory or governmental body, or
          any agency or official which (i) challenges or seeks to
          prevent, enjoin, alter or delay the Merger or any of the
          other transactions contemplated hereby or by the Stock
          Purchase Agreement; or (ii) alleges criminal action or
          inaction.  Without limiting the generality of the
          foregoing, as of the date hereof, there is no action,
          suit, claim, investigation or proceeding relating to
          debarment or potential debarment pending against, or to
          the knowledge of the Company, threatened against, the
          Company or any of its subsidiaries before the Health Care
          Financing Administration, the Department of Defense, the
          Inspector General of the Department of Health and Human
          Services or any similar state agency which, individually
          or in the aggregate, would reasonably be expected to have
          a Material Adverse Effect.  Except as disclosed in the
          SEC Reports filed prior to the date of this Agreement, as
          of the date hereof, neither the Company nor any of its
          subsidiaries nor any of their respective properties is
          subject to any order, writ, judgment, injunction, decree,
          determination or award having, or which would reasonably
          be expected to have, a Material Adverse Effect or which
          would prevent or delay the consummation of the
          transactions contemplated hereby. 

                    Section 3.10  Taxes.  Except as set forth in
          the SEC Reports filed prior to the date of this Agreement
          or in Schedule 3.10(a), (a) the Company and its
          subsidiaries have filed, been included in or sent, all
          material returns, material declarations and reports and
          information returns and statements required to be filed
          or sent by or relating to any of them relating to any
          Taxes (as defined below) with respect to any material
          income, properties or operations of the Company or any of
          its subsidiaries (collectively, "Returns"); (b) as of the
          time of filing, the Returns correctly reflected in all
          material respects the facts regarding the income,
          business, assets, operations, activities and status of
          the Company and its subsidiaries and any other material
          information required to be shown therein; (c) the Company
          and its subsidiaries have timely paid or made provision
          for all material Taxes that have been shown as due and
          payable on the Returns that have been filed; (d) the
          Company and its subsidiaries have made or will make
          provision for all material Taxes payable for any periods
          that end before the Effective Time for which no Returns
          have yet been filed and for any periods that begin before
          the Effective Time and end after the Effective Time to
          the extent such Taxes are attributable to the portion of
          any such period ending at the Effective Time; (e) the
          charges, accruals and reserves for taxes reflected on the
          books of the Company and its subsidiaries are adequate
          under generally accepted accounting principles to cover
          the Tax liabilities accruing or payable by the Company
          and its subsidiaries in respect of periods prior to the
          date hereof; (f) neither the Company nor any of its
          subsidiaries is delinquent in the payment of any material
          Taxes or has requested any extension of time within which
          to file or send any material Return (other than
          extensions granted to the Company for the filing of its
          Returns as set forth in Schedule 3.10(a)), which Return
          has not since been filed or sent; (g) no material
          deficiency for any Taxes has been proposed, asserted or
          assessed in writing against the Company or any of its
          subsidiaries (or any member of any affiliated or combined
          group of which the Company or any of its subsidiaries is
          or has been a member for which either the Company or any
          of its subsidiaries could be liable) other than those
          Taxes being contested in good faith by appropriate
          proceedings and set forth in Schedule 3.10(b) (which
          shall set forth the nature of the proceeding, the type of
          return, the deficiencies proposed, asserted or assessed
          and the amount thereof, and the taxable year in
          question); (h) neither the Company nor any of its
          subsidiaries has granted any extension of the limitation
          period applicable to any material Tax claims other than
          those Taxes being contested in good faith by appropriate
          proceedings; (i) neither the Company nor any of its
          subsidiaries is subject to liability for Taxes of any
          person (other than the Company or its subsidiaries),
          including, without limitation, liability arising from the
          application of U.S. Treasury Regulation section 1.1502-6
          or any analogous provision of state, local or foreign
          law; and (j) neither the Company nor any of its
          subsidiaries is or has been a party to any material tax
          sharing agreement with any corporation which is not
          currently a member of the affiliated group of which the
          Company is currently a member.

                    "Tax" means with respect to any person (i) any
          net income, gross income, gross receipts, sales, use, ad
          valorem, franchise, profits, license, withholding,
          payroll, employment, excise, severance, stamp,
          occupation, premium, property, value-added, windfall
          profits, custom duty or other tax, governmental fee,
          capital stock, social security (or similar),
          unemployment, disability, transfer, registration,
          alternative or add-on minimum, estimated or other like
          assessment or charge of any kind whatsoever, together
          with any interest and any penalty, addition to tax or
          additional amount imposed by any taxing authority
          (domestic or foreign) on such person and (ii) any
          liability of the Company or any subsidiary for the
          payment of any amount of the type described in clause (i)
          as a result of being a member of an affiliated or
          combined group.

                    Section 3.11  Employee Benefits.  (a) Schedule
          3.11(a) contains a true and complete list of each bonus,
          deferred compensation, incentive compensation, stock
          purchase, stock option, severance or termination pay,
          hospitalization or other medical, dental, life,
          disability or other insurance, supplemental unemployment
          benefits, profit-sharing, pension, savings or retirement
          plan, program, agreement or arrangement, and each other
          employee benefit plan, program, agreement or arrangement,
          sponsored, maintained or contributed to or required to be
          contributed to by the Company or by any trade or
          business, whether or not incorporated (an "ERISA
          Affiliate"), that together with the Company would be
          deemed a "single employer" within the meaning of section
          4001 of the Employee Retirement Income Security Act of
          1974, as amended ("ERISA"), for the benefit of any
          employee or terminated employee of the Company or any
          ERISA Affiliate (the "Plans").  Schedule 3.11(a)
          identifies each of the Plans that is an "employee benefit
          plan," as that term is defined in section 3(3) of ERISA
          (the "ERISA Plans").  

                         (b)  With respect to each Plan, the
          Company has heretofore delivered or made available to
          Parent true and complete copies of each of the following
          documents (to the extent applicable):

                              (i)  a copy thereof;

                             (ii)  a copy of the most recent
               annual report and actuarial report, if required
               under ERISA, and the most recent report
               prepared with respect thereto in accordance
               with Statement of Financial Accounting
               Standards No. 87, Employer's Accounting for
               Pensions;

                            (iii)  a copy of the most recent
               actuarial report prepared with respect thereto
               in accordance with Statement of Financial
               Accounting Standards No. 106, Employer's
               Accounting for Non-Pension Postretirement
               Benefits;

                             (iv)  a copy of the most recent
               Summary Plan Description;

                              (v)  if the Plan is funded
               through a trust or any third party funding
               vehicle, a copy of the trust or other funding
               agreement and the latest financial statements
               thereof; and

                             (vi)  the most recent
               determination letter received from the Internal
               Revenue Service with respect to each Plan
               intended to qualify under section 401(a) of the
               Internal Revenue Code of 1986, as amended (the
               "Code").

                         (c)  With respect to each ERISA Plan
          subject to Title IV of ERISA, no material liability
          (other than liabilities for premiums due the Pension
          Benefit Guaranty Corporation ("PBGC") (which premiums
          have been paid when due)) under Title IV of ERISA has
          been incurred by the Company or any ERISA Affiliate that
          has not been satisfied in full, and, to the knowledge of
          the Company, no condition exists that presents a material
          risk to the Company or any ERISA Affiliate of incurring a
          material liability under such Title.  To the extent this
          representation applies to sections 4064, 4069 or 4204 of
          Title IV of ERISA, it is made not only with respect to
          each ERISA Plan but also with respect to any employee
          benefit plan, program, agreement or arrangement subject
          to Title IV of ERISA to which the Company or any ERISA
          Affiliate made, or was required to make, contributions
          during the five (5)-year period ending on the Effective
          Time.

                         (d)  The PBGC has not instituted
          proceedings to terminate any ERISA Plan and, to the
          knowledge of the Company, no condition exists that
          presents a material risk that such proceedings will be
          instituted.

                         (e)  Except as set forth on Schedule
          3.11(e), with respect to each ERISA Plan subject to Title
          IV of ERISA, the present value of accrued benefits under
          such plan, based upon the actuarial assumptions used for
          funding purposes in the most recent actuarial report
          prepared by such plan's actuary with respect to such plan
          did not exceed, as of its latest valuation date, the then
          current value of the assets of such plan allocable to
          such accrued benefits.

                         (f)  Neither the Company nor any ERISA
          Affiliate, nor, to the knowledge of the Company, any
          ERISA Plan, nor any trust created thereunder, nor any
          trustee or administrator thereof has engaged in a
          transaction in connection with which the Company or any
          ERISA Affiliate, any ERISA Plan, any such trust, or any
          trustee or administrator thereof, or any party dealing
          with any ERISA Plan or any such trust could be subject to
          either a civil penalty assessed pursuant to section 409
          or 502(i) of ERISA or a Tax imposed pursuant to section
          4975 or 4976 of the Code, except for such penalties and
          Taxes which would not, individually or in the aggregate,
          have a Material Adverse Effect.

                         (g)  No ERISA Plan or any trust
          established thereunder has incurred any "accumulated
          funding deficiency" (as defined in section 302 of ERISA
          and section 412 of the Code), whether or not waived, as
          of the last day of the most recent fiscal year of such
          ERISA Plan ended prior to the Effective Time; and all
          contributions required to be made with respect thereto
          (whether pursuant to the terms of any ERISA Plan or
          otherwise) on or prior to the Effective Time have been
          timely made.

                         (h)  No ERISA Plan is a "multiemployer
          pension plan," as defined in section 3(37) of ERISA, nor
          is any ERISA Plan a plan described in section 4063(a) of
          ERISA.

                         (i)  To the knowledge of the Company, each
          Plan has been operated and administered in all material
          respects in accordance with its terms and applicable law,
          including but not limited to ERISA and the Code.

                         (j)  Each ERISA Plan intended to be
          "qualified" within the meaning of section 401(a) of the
          Code has been drafted with the intention to be so
          qualified and has been submitted to the Internal Revenue
          Service along with a request for a favorable
          determination letter on or before the date hereof, and it
          is anticipated that each such plan will be modified so as
          to incorporate any conforming amendments requested or
          required by the Internal Revenue Service as a condition
          to the issuance of such favorable determination letter.

                         (k)  To the Company's knowledge, except as
          reasonably estimated and as set forth on Schedule
          3.11(k), no amounts payable under the Plans as a result
          of the consummation of the transactions contemplated by
          this Agreement will fail to be deductible for federal
          income tax purposes by application of section 280G of the
          Code.

                         (l)  Except as set forth on Schedule
          3.11(l), no Plan provides benefits, including without
          limitation death or medical benefits (whether or not
          insured), with respect to current or former employees of
          the Company or any ERISA Affiliate beyond their
          retirement or other termination of service (other than
          (i) coverage mandated by applicable law or (ii) death
          benefits or retirement benefits under any "employee
          pension plan," as that term is defined in section 3(2) of
          ERISA).

                         (m)  Except as provided in Schedule
          3.11(m), the consummation of the transactions
          contemplated by this Agreement will not (i) entitle any
          current or former employee or officer of the Company or
          any ERISA Affiliate to severance pay, unemployment
          compensation or any other payment, except as expressly
          provided in this Agreement or (ii) accelerate the time of
          payment or vesting, or increase the amount of
          compensation due any such employee or officer.

                         (n)  There are no pending or, to the
          knowledge of the Company, threatened claims by or on
          behalf of any Plan, by any employee or beneficiary
          covered under any such Plan, or otherwise involving any
          such Plan (other than routine claims for benefits).

                         (o)  The Company has reserved the right to
          amend or terminate any Plan which is a welfare benefit
          plan, as that term is defined in section 3(l) of ERISA.

                    Section 3.12  Compliance.  Neither the Company
          nor any of its subsidiaries is in violation of, or has
          violated, any applicable provisions of (i) any laws,
          rules, statutes, orders, ordinances or regulations or
          (ii) any note, bond, mortgage, indenture, contract,
          agreement, lease, license, permit, franchise, or other
          instrument or obligations to which the Company or any of
          its subsidiaries is a party or by which the Company or
          any of its subsidiaries or its or any of their respective
          properties are bound or affected, which, individually or
          in the aggregate, would have or be reasonably expected to
          have a Material Adverse Effect.

                    Section 3.13  Environmental Matters. (a) Except
          as set forth in Schedule 3.13 and to the knowledge of the
          Company, the Company and its subsidiaries are in
          compliance with all applicable Environmental Laws (which
          compliance includes, but is not limited to, the
          possession by the Company and its subsidiaries of all
          permits and other governmental authorizations required
          under applicable Environmental Laws, and compliance with
          the terms and conditions thereof), except for any
          noncompliance that individually or in the aggregate would
          not reasonably be expected to have a Material Adverse
          Effect.  Except as set forth in Schedule 3.13, neither
          the Company nor any of its subsidiaries has received any
          communication (written or oral), whether from a
          governmental authority, citizens group, employee or
          otherwise, that alleges that the Company is not in such
          compliance, and there are no past or present actions,
          activities, circumstances, conditions, events or
          incidents that would prevent or interfere with such
          compliance in the future.

                    (b)  Except as set forth in Schedule 3.13,
          there is no Environmental Claim pending or, to the
          knowledge of the Company, threatened against the Company
          or any of its subsidiaries, or, to the knowledge of the
          Company, against any person or entity whose liability for
          any Environmental Claim the Company or any of its
          subsidiaries has retained or assumed either contractually
          or by operation of law, which individually or in the
          aggregate would reasonably be expected to have a Material
          Adverse Effect.

                    (c) Except as set forth in Schedule 3.13, there
          are no past or present actions, activities,
          circumstances, conditions, events or incidents
          (including, without limitation, the release, emission,
          discharge, presence or disposal of any Hazardous
          Material) which could form the basis of any Environmental
          Claim against the Company or any of its subsidiaries, or,
          to the knowledge of the Company, against any person or
          entity whose liability for any Environmental Claim the
          Company or any of its subsidiaries has or may have
          retained or assumed either contractually or by operation
          of law, which individually or in the aggregate would
          reasonably be expected to have a Material Adverse Effect.

                    (d) Except as set forth in Schedule 3.13,
          neither the Company nor any of its subsidiaries has, and
          to the knowledge of Company, no other person has
          Released, placed, stored, buried or dumped Hazardous
          Materials on, beneath or adjacent to any property owned,
          operated or leased or formerly owned, operated or leased
          by the Company or any of its subsidiaries, and neither
          the Company nor any of its subsidiaries has received
          notice that it is a potentially responsible party for the
          Cleanup of any property, whether or not owned or operated
          by the Company or any of its subsidiaries, which
          individually or in the aggregate would reasonably be
          expected to have a Material Adverse Effect.
           
                    (e)  The Company and its subsidiaries have
          delivered or otherwise made available for inspection to
          Parent true, complete and correct copies and results of
          any material reports, studies, analyses, tests or
          monitoring possessed or initiated by the Company or any
          of its subsidiaries pertaining to Hazardous Materials in,
          on, beneath or adjacent to the property owned or leased
          by the Company or any of its subsidiaries or regarding
          the Company's and its subsidiaries' compliance with
          applicable Environmental Laws.

                    (f)  Except as set forth in Schedule 3.13, no
          transfers of permits or other governmental authorizations
          under Environmental Laws, and no additional permits or
          other governmental authorizations under Environmental
          Laws, will be required to permit the Company and its
          subsidiaries or the Surviving Corporation and its
          subsidiaries, as the case may be, to be in full
          compliance with all applicable Environmental Laws for the
          period immediately following the transactions
          contemplated hereby, as conducted by the Company and its
          subsidiaries immediately prior to the date hereof.  To
          the extent that such transfers or additional permits and
          other governmental authorizations are required, the
          Company and its subsidiaries agree to use reasonable best
          efforts to effect such transfers and obtain such permits
          and other governmental authorizations at the time such
          transfers, permits and other governmental authorizations
          are required by law.

                    (g) The following terms as used in this Section
          shall have the following meanings:

                    "Cleanup" means all actions required by
          governmental entities or Environmental Laws to: (1)
          cleanup, remove, treat or remediate Hazardous Materials
          in the indoor or outdoor environment; (2) prevent the
          Release of Hazardous Materials so that they do not
          migrate, endanger or threaten to endanger public health
          or welfare of the indoor or outdoor environment; (3)
          perform pre-remedial studies and investigations and post-
          remedial monitoring and care; or (4) respond to any
          government requests for information or documents in any
          way relating to cleanup, removal, treatment or
          remediation or potential cleanup, removal, treatment or
          remediation of Hazardous Materials in the indoor or
          outdoor environment.

                    "Environmental Claim" means any claim, action,
          cause of action, investigation or notice (written or
          oral) by any person or entity alleging potential
          liability (including, without limitation, potential
          liability for investigatory costs, Cleanup costs,
          governmental response costs, natural resources damages,
          property damages, personal injuries, or penalties)
          arising out of, based on or resulting from (a) the
          presence, or Release into the indoor or outdoor
          environment, of any Hazardous Materials at any location,
          whether or not owned or operated by the Company or any of
          its subsidiaries or (b) circumstances forming the basis
          of any violation, or alleged violation, of any
          Environmental Law.

                    "Environmental Laws" means all federal, state,
          local and foreign laws and regulations relating to
          pollution or protection of human health or the
          environment, including without limitation, laws relating
          to Releases or threatened Releases of Hazardous Materials
          into the indoor or outdoor environment (including,
          without limitation, ambient air, surface water, ground
          water, land surface or subsurface strata) or otherwise
          relating to the manufacture, processing, distribution,
          use, treatment, storage, Release, disposal, transport or
          handling of Hazardous Materials and all laws and
          regulations with regard to recordkeeping, notification,
          disclosure and reporting requirements respecting
          Hazardous Materials.

                    "Hazardous Materials" means all substances
          defined as Hazardous Substances, Oils, Pollutants or
          Contaminants in the National Oil and Hazardous Substances
          Pollution Contingency Plan, 40 C.F.R. SECTION 300.5, or defined
          as such by, or regulated as such under, any Environmental
          Law.

                    "Release" means any release, spill, emission,
          discharge, leaking, pumping, injection, deposit,
          disposal, discharge, dispersal, leaching or migration
          into the indoor or outdoor environment (including,
          without limitation, ambient air, surface water,
          groundwater and surface or subsurface strata) or into or
          out of any property, including the movement of Hazardous
          Materials through or in the air, soil, surface water,
          groundwater or property.

                    Section 3.14  Intellectual Property.  Except to
          the extent that the inaccuracy of any of the following
          (or the circumstances giving rise to such inaccuracy)
          individually or in the aggregate, would not reasonably be
          expected to have a Material Adverse Effect, and except as
          disclosed in the SEC Reports filed prior to the date of
          this Agreement or as set forth in Schedule 3.14:  (1) the
          Company and each of its subsidiaries owns, or is licensed
          or has the right to use (in each case, free and clear of
          any Liens), all Intellectual Property (as defined below)
          used in or necessary for the conduct of its business as
          currently conducted; (2) to the knowledge of the Company,
          the use of any Intellectual Property by the Company and
          its subsidiaries does not infringe on or otherwise
          violate the rights of any person; (3) to the knowledge of
          the Company, no product (or component thereof) or process
          used, sold or manufactured by and/or for, or supplied to,
          the Company or any of its subsidiaries infringes or
          otherwise violates the Intellectual Property of any other
          person; and (4) to the knowledge of the Company, no
          person is challenging, infringing on or otherwise
          violating any right of the Company or any of its
          subsidiaries with respect to any Intellectual Property
          owned by and/or licensed to the Company and its
          subsidiaries.  For purposes of this Agreement
          "Intellectual Property" shall mean trademarks, service
          marks, brand names, certification marks, trade dress,
          assumed names, trade names and other indications of
          origin, the goodwill associated with the foregoing and
          registrations in any jurisdiction of, and applications in
          any jurisdiction to register, the foregoing, including
          any extension, modification or renewal of any such
          registration or application; inventions, discoveries and
          ideas, whether patentable or not in any jurisdiction;
          patents, applications for patents (including, without
          limitation, divisions, continuations, continuations in
          part and renewal applications), and any renewals,
          extensions or reissues thereof, in any jurisdiction;
          nonpublic information, trade secrets and confidential
          information and rights in any jurisdiction to limit the
          use or disclosure thereof by any person; writings and
          other works, whether copyrightable or not in any
          jurisdiction; registrations or applications for
          registration of copyrights in any jurisdiction, and any
          renewals or extensions thereof; and any similar
          intellectual property or proprietary rights.

                    Section 3.15  Significant Agreements.  Schedule
          3.15 sets forth a complete and correct list of all
          contracts, agreements and commitments (oral or written)
          between the Company or any of its subsidiaries, on the
          one hand, and on the other hand, (i) DCC or any of its
          affiliates (other than the Company and its subsidiaries)
          (excluding contracts, agreements and commitments which
          collectively are immaterial to the Company and except for
          this Agreement and certain other agreements entered into
          in connection with this Agreement and to which Parent is
          a party or of which Parent is aware); (ii) Chugai
          Pharmaceutical Co., Ltd. or any of its affiliates; or
          (iii) Tanabe Seiyaku Co., Ltd. or any of its affiliates
          (the contracts, agreements and commitments listed in
          Schedule 3.15, collectively, the "Significant
          Agreements").  The Company has heretofore furnished or
          made available to Parent complete and correct copies of
          the Significant Agreements, each as amended or modified
          to the date hereof (including any waivers with respect
          thereto).  Except as set forth on Schedule 3.4 or
          Schedule 3.15, each of the Significant Agreements is in
          full force and effect and enforceable in accordance with
          its terms; neither the Company nor any of its
          subsidiaries has received any notice (written or oral) of
          cancellation or termination of, or any expression or
          indication of an intention or desire to cancel or
          terminate, any of the Significant Agreements; no
          Significant Agreement is the subject of, or, to the
          knowledge of the Company, has been threatened to be made
          the subject of, any arbitration, suit or other legal
          proceeding; with respect to any Significant Agreement
          which by its terms will terminate as of a certain date
          unless renewed or unless an option to extend such
          Significant Agreement is exercised, neither the Company
          nor any of its subsidiaries has received any notice
          (written or oral), or otherwise has any knowledge, that
          any such Significant Agreement will not be so renewed or
          that any such extension option will not be exercised; and
          there exists no event of default or occurrence, condition
          or act on the part of the Company or any of its
          subsidiaries or, to the knowledge of the Company, on the
          part of the other parties to the Significant Agreements
          which constitutes or would constitute (with notice or
          lapse of time or both) a breach of or default under any
          of the Significant Agreements, except to the extent that
          the inaccuracy of the foregoing insofar as it relates to
          contracts, agreements and commitments referenced in
          Section 3.15(i) would not, individually or in the
          aggregate, have a Material Adverse Effect. 

                    Section 3.16  Insurance.  Schedule 3.16 sets
          forth a complete and correct list of all material
          insurance policies (including a brief summary of the
          nature and terms thereof and any amounts paid or payable
          to the Company or any of its subsidiaries thereunder)
          providing coverage in favor of the Company or any of its
          subsidiaries or any of their respective properties.  Each
          such policy is in full force and effect, no notice of
          termination, cancellation or reservation of rights has
          been received with respect to any such policy, there is
          no default with respect to any provision contained in any
          such policy, and there has not been any failure to give
          any notice or present any claim under any such policy in
          a timely fashion or in the manner or detail required by
          any such policy, except for any such failures to be in
          full force and effect, any such terminations,
          cancellations, reservations or defaults, or any such
          failures to give notice or present claims which,
          individually or in the aggregate, would not reasonably be
          expected to have a Material Adverse Effect.  The coverage
          provided by such policies is, in the Company's judgment,
          reasonable in scope and amount, in light of the risks
          attendant to the business and activities of the Company
          and its subsidiaries.  

                    Section 3.17  Labor Matters.  Except as set
          forth in Schedule 3.17 and except for normal and
          customary labor arrangements outside North America,
          neither the Company nor any of its subsidiaries is a
          party to any collective bargaining or other labor union
          contract applicable to persons employed by the Company or
          any of its subsidiaries, no collective bargaining
          agreement is being negotiated by the Company or any of
          its subsidiaries and the Company has no knowledge of any
          material activities or proceedings of any labor union to
          organize any of their respective employees.  There is no
          labor dispute, strike or work stoppage against the
          Company or any of its subsidiaries pending or, to the
          Company's knowledge, threatened which may interfere with
          the respective business activities of the Company or any
          of its subsidiaries, except where such dispute, strike or
          work stoppage would not reasonably be expected to have a
          Material Adverse Effect.

                    Section 3.18  FDA Matters. 

                         (a)  Schedule 3.18 sets forth a complete
          and correct list of all products that are, directly or
          indirectly, being researched in human subjects or
          distributed for commercial sale by the Company or any of
          its subsidiaries (the "Products")(including, on such
          Schedule 3.18, a list of all material Licenses (as
          defined below) for each Product that have been obtained
          by the Company or any of its subsidiaries, or form the
          basis for manufacturing, distribution, sale or human
          research of a Product by the Company or any of its
          subsidiaries).  

                         (b)  Except as set forth in Schedule 3.18,
          (i) with respect to each Product: (A) the Company and its
          subsidiaries have obtained all applicable approvals,
          clearances, authorizations, licenses and registrations
          required by United States or foreign governments or
          government agencies, to permit the manufacture,
          distribution, sale, marketing or human research of such
          Product (collectively, "Licenses"); (B) the Company and
          its subsidiaries are in full compliance with all terms
          and conditions of each License in each country in which
          such Product is marketed, and with all requirements
          pertaining to the manufacture, distribution, sale or
          human research of such Product which is not required to
          be the subject of a License; (C) the Company and its
          subsidiaries are in full compliance with all applicable
          requirements (as set forth in relevant statutes and
          regulations) regarding registration, licensure or
          notification for each site (in any country) at which such
          Product is manufactured, processed, packed, held for
          distribution or from which it is distributed; and (D) to
          the extent such product is intended for export from the
          United States, the Company and its subsidiaries are in
          full compliance with either all United States Food and
          Drug Administration (hereafter, "FDA") requirements for
          marketing or 21 U.S.C. 381(e) or 382; (ii) all
          manufacturing operations performed by the Company and its
          subsidiaries have been and are being conducted in full
          compliance with the current good manufacturing practice,
          including, but not limited to, the good manufacturing
          practice regulations issued by FDA and counterpart
          requirements in the European Union and other countries;
          (iii) all nonclinical laboratory studies, as described in
          21 C.F.R. 58.3(d), sponsored by the Company or any of its
          subsidiaries have been and are being conducted in full
          compliance with the good laboratory practice regulations
          set forth in 21 C.F.R. Part 58 and counterpart
          requirements in the European Union and other countries;
          and (iv) the Company and its subsidiaries are in full
          compliance with all reporting requirements for all
          Licenses or plant registrations described in the
          preceding clauses (b)(i)(A) and (b)(i)(C), including, but
          not limited to, the adverse event reporting requirements
          for drugs in 21 C.F.R. Parts 312 and 314 and for devices
          in 21 C.F.R. Parts 812 and 803; except, in the case of
          the preceding clauses (b)(i)(A) through (b)(i)(D),
          inclusive, (b)(ii), (b)(iii) and (b)(iv), for any such
          failures to obtain or noncompliances which, individually
          or in the aggregate, would not reasonably be expected to
          have a Material Adverse Effect.  Without limiting the
          generality of the foregoing definition of "Licenses",
          such definition shall specifically include, with respect
          to the United States, new drug applications, abbreviated
          new drug applications, product license applications,
          investigational new drug applications, premarket approval
          applications, premarket notifications under Section
          510(k) of the Federal Food, Drug, and Cosmetic Act,
          investigational device exemptions, and product export
          applications issued by FDA, as well as registrations
          issued by the Drug Enforcement Administration of the
          Department of Justice. 

                         (c)  Except as set forth in Schedule 3.18,
          neither the Company nor any of its subsidiaries nor any
          of their officers, employees or agents has made any
          untrue statement of a material fact or fraudulent
          statement to FDA, failed to disclose a fact required to
          be disclosed to FDA, or committed any act, made any
          statement, or failed to make any statement, that would
          reasonably be expected to provide a basis for FDA to
          invoke its policy respecting "Fraud, Untrue Statements of
          Material Facts, Bribery, and Illegal Gratuities," set
          forth in 56 Fed. Reg. 46191 (September 10, 1991).

                         (d)  The Company has provided or made
          available to Parent all documents in its possession
          concerning communications to or from FDA, or prepared by
          FDA, which bear in any material respect on compliance by
          the Company and its subsidiaries with FDA regulatory
          requirements.

                                  ARTICLE IV

                    REPRESENTATIONS AND WARRANTIES OF DCC 

                    DCC represents and warrants to Parent and
          Acquisition as follows:

                    Section 4.1  Organization. DCC is a corporation
          duly organized, validly existing and in good standing
          under the laws of the State of Delaware.  

                    Section 4.2  Authority Relative to this
          Agreement.  DCC has all necessary 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 have
          been duly and validly authorized by the board of
          directors of DCC, and no other corporate proceedings on
          the part of DCC are necessary to authorize this Agreement
          or to consummate the transactions so contemplated.  This
          Agreement has been duly and validly executed and
          delivered by DCC and, assuming it constitutes a valid and
          binding agreement of the other parties hereto,
          constitutes a legal, valid and binding agreement of DCC,
          enforceable against DCC in accordance with its terms.

                    Section 4.3  Non-Contravention; Required
          Filings and Consents.  (a) The execution, delivery and
          performance by DCC of this Agreement and the consummation
          of the transactions contemplated hereby (including the
          Merger) do not and will not (i) contravene or conflict
          with the Certificate of Incorporation or By-Laws of DCC;
          (ii) assuming that all consents, authorizations and
          approvals contemplated by subsection (b) below have been
          obtained and all filings described therein have been
          made, contravene or conflict with or constitute a
          violation of any provision of any law, regulation,
          judgment, injunction, order or decree binding upon or
          applicable to DCC or any of its properties; (iii)
          conflict with, or result in the breach or termination of
          any provision of or constitute a default (with or without
          the giving of notice or the lapse of time or both) under,
          or give rise to any right of termination, cancellation,
          or loss of any benefit to which DCC is entitled under any
          provision of any agreement, contract, license or other
          instrument binding upon DCC or any of its properties, or
          allow the acceleration of the performance of, any
          obligation of DCC under any indenture, mortgage, deed of
          trust, lease, license, contract, instrument or other
          agreement to which DCC is a party or by which DCC or any
          of its assets or properties is subject or bound; or (iv)
          result in the creation or imposition of any Lien on any
          asset of DCC, except in the case of clauses (ii), (iii)
          and (iv) for any such contraventions, conflicts,
          violations, breaches, terminations, defaults,
          cancellations, losses, accelerations and Liens which,
          individually or in the aggregate, would not reasonably be
          expected to prevent DCC from performing its obligations
          hereunder. 

                         (b)  The execution, delivery and
          performance by DCC of this Agreement and the consummation
          of the transactions contemplated hereby by DCC require no
          action by or in respect of, or filing with, any
          governmental body, agency, official or authority (either
          domestic or foreign) other than (i) compliance with any
          applicable requirements of the HSR Act, the EC Merger
          Regulation and the Canadian Competition Act; (ii) the
          filing of a notice pursuant to Exon-Florio; (iii)
          compliance with any applicable requirements of the
          Exchange Act and state securities, takeover and Blue Sky
          laws; and (iv) such actions or filings which, if not
          taken or made, would not, individually or in the
          aggregate, reasonably be expected to prevent DCC from
          performing its obligations hereunder. 

                    Section 4.4  Absence of Litigation.  Except as
          previously disclosed by DCC to the Company, Parent and
          Acquisition, as of the date hereof, there is no action,
          suit, claim, investigation or proceeding pending against,
          or to the knowledge of DCC, threatened against, DCC or
          any of its properties before any court or arbitrator or
          any administrative, regulatory or governmental body, or
          any agency or official which challenges or seeks to
          prevent, enjoin, alter or delay the Merger or any of the
          other transactions contemplated by this Agreement or the
          Stock Purchase Agreement.  As of the date hereof, neither
          DCC nor any of its properties is subject to any order,
          writ, judgment, injunction, decree, determination or
          award which would prevent or delay the consummation of
          the transactions contemplated hereby.

                    Section 4.5  Certain Matters Concerning the
          Company.  (a)  Except for this Agreement and certain
          other agreements entered into in connection with this
          Agreement and to which Parent is a party or of which
          Parent is aware, Schedule 4.5 sets forth a complete and
          correct list of all contracts, agreements and commitments
          (oral or written) between the Company or any of its
          subsidiaries, on the one hand, and DCC or any of its
          affiliates (other than the Company and its subsidiaries),
          on the other hand (the "Dow Agreements").  

                         (b)  To the knowledge of DCC, and without
          having made any special inquiry or investigation, except
          as disclosed in the SEC Reports filed prior to the date 
          of this Agreement or as set forth on Schedule 3.5(b), the
          Company and its subsidiaries have no liabilities of any
          nature (whether accrued, absolute, contingent or
          otherwise), except for liabilities incurred in the
          ordinary course of business since December 31, 1994 or
          which would not, individually or in the aggregate, have a
          Material Adverse Effect.

                                  ARTICLE V

           REPRESENTATIONS AND WARRANTIES OF PARENT AND ACQUISITION

                    Each of Parent and Acquisition represents and
          warrants to the Company as follows:

                    Section 5.1  Organization.  Each of Parent and
          Acquisition is a corporation duly organized, validly
          existing and in good standing under the laws of the State
          of Delaware and has all requisite corporate power and
          authority to own, lease and operate its properties and to
          carry on its business as now being conducted.  As of the
          closing pursuant to the Stock Purchase Agreement and as
          of the Closing hereunder, Acquisition will be a direct
          wholly owned subsidiary of Parent.

                    Section 5.2  Authority Relative to this
          Agreement.  Each of Parent and Acquisition has all
          necessary 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 have been duly and validly authorized
          by the board of directors of Acquisition and Parent and
          by the sole stockholder of Acquisition, and no other
          corporate proceedings on the part of Parent or
          Acquisition are necessary to authorize this Agreement or
          to consummate the transactions so contemplated.  This
          Agreement has been duly and validly executed and
          delivered by each of Parent and Acquisition and, assuming
          it constitutes a valid and binding agreement of the other
          parties hereto, constitutes a legal, valid and binding
          agreement of each of Parent and Acquisition, enforceable
          against each of Parent and Acquisition in accordance with
          its terms. 

                    Section 5.3  Non-Contravention; Required
          Filings and Consents.  (a) The execution, delivery and
          performance by Parent and Acquisition of this Agreement
          and the consummation of the transactions contemplated
          hereby (including the Merger) do not and will not
          (i) contravene or conflict with the Certificate of
          Incorporation or By-Laws of Parent or Acquisition; (ii)
          assuming that all consents, authorizations and approvals
          contemplated by subsection (b) below have been obtained
          and all filings described therein have been made,
          contravene or conflict with or constitute a violation of
          any provision of any law, regulation, judgment,
          injunction, order or decree binding upon or applicable to
          Parent or Acquisition or any of their respective
          properties; (iii) conflict with, or result in the breach
          or termination of any provision of or constitute a
          default (with or without the giving of notice or the
          lapse of time or both) under, or give rise to any right
          of termination, cancellation, or loss of any benefit to
          which Parent or Acquisition is entitled under any
          provision of any agreement, contract, license or other
          instrument binding upon Parent, Acquisition or any of
          their respective properties, or allow the acceleration of
          the performance of, any obligation of Parent or
          Acquisition under any indenture, mortgage, deed of trust,
          lease, license, contract, instrument or other agreement
          to which Parent or Acquisition is a party or by which
          Parent or Acquisition or any of their respective assets
          or properties is subject or bound; or (iv) result in the
          creation or imposition of any Lien on any asset of Parent
          or Acquisition, except in the case of clauses (ii), (iii)
          and (iv) for any such contraventions, conflicts,
          violations, breaches, terminations, defaults,
          cancellations, losses, accelerations and Liens which,
          individually or in the aggregate, would not reasonably be
          expected to prevent the consummation of the Merger. 

                         (b)  The execution, delivery and
          performance by Parent and Acquisition of this Agreement
          and the consummation of the transactions contemplated
          hereby (including the Merger) by Parent and Acquisition
          require no action by or in respect of, or filing with,
          any governmental body, agency, official or authority
          (either domestic or foreign) other than (i) the filing of
          a certificate of merger in accordance with Delaware Law;
          (ii) compliance with any applicable requirements of the
          HSR Act, the EC Merger Regulation and the Canadian
          Competition Act; (iii) compliance with any applicable
          requirements of the Exchange Act and state securities,
          takeover and Blue Sky laws; (iv) the filing of a notice
          pursuant to Exon-Florio; and (v) such actions or filings
          which, if not taken or made, would not, individually or
          in the aggregate, reasonably be expected to prevent the
          consummation of the Merger.

                    Section 5.4  Absence of Litigation.  Except as
          previously disclosed by Parent and Acquisition to the
          Company and DCC, as of the date hereof, there is no
          action, suit, claim, investigation or proceeding pending
          against, or to the knowledge of Parent and Acquisition,
          threatened against, Parent or Acquisition or any of their
          respective properties before any court or arbitrator or
          any administrative, regulatory or governmental body, or
          any agency or official which challenges or seeks to
          prevent, enjoin, alter or delay the Merger or any of the
          other transactions contemplated by this Agreement or the
          Stock Purchase Agreement.  As of the date hereof, neither
          Parent nor Acquisition nor any of their respective
          properties is subject to any order, writ, judgment,
          injunction, decree, determination or award which would
          prevent or delay the consummation of the transactions
          contemplated hereby.

                    Section 5.5  Proxy Statement; Schedule 13E-3. 
          None of the information provided by Parent or Acquisition 
          specifically for use in the Proxy Statement shall, at the
          time filed with the SEC, at the time mailed to the
          Company's stockholders, at the time of the Stockholders'
          Meeting or at the Effective Time, 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. 
          None of the information provided by Parent or Acquisition
          specifically for use in the Schedule 13E-3(if required to
          be filed) will at the time the Schedule 13E-3 or any
          amendments thereto are filed with the SEC, 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. 

                    Section 5.6  No Prior Activities.  Since the
          date of its incorporation, Acquisition has not engaged in
          any activities other than in connection with or as
          contemplated by this Agreement or the Stock Purchase
          Agreement or in connection with arranging any financing
          required to consummate the transactions contemplated
          hereby and thereby. 

                    Section 5.7  Financing.  Upon the terms and
          subject to the conditions of this Agreement, Parent or
          Acquisition will have available all funds necessary to
          satisfy its obligation to pay the aggregate Merger
          Consideration.

                    Section 5.8  Parent Not an Interested
          Stockholder.  As of the date hereof, (i) neither Parent
          nor any of its affiliates is, with respect to the
          Company, an "Interested Stockholder", as such term is
          defined in Section 203 of Delaware Law and (ii) except to
          the extent that Parent and its affiliates may be deemed
          to hold Shares as a result of this Agreement or the Stock
          Purchase Agreement, Parent and its affiliates
          collectively do not hold directly or indirectly five
          percent (5%) or more of the outstanding voting securities
          of the Company.

                                  ARTICLE VI

                                  COVENANTS

                    Section 6.1  Conduct of Business of the
          Company.  Except as otherwise expressly provided in this
          Agreement, during the period from the date hereof to the
          Effective Time, the Company and its subsidiaries will
          each conduct its operations according to its ordinary
          course of business consistent with past practice, and the
          Company and its subsidiaries will each use its reasonable
          best efforts to preserve intact its business
          organization, to keep available the services of its
          officers and employees and to maintain existing
          relationships with licensors, licensees, suppliers,
          contractors, distributors, customers and others having
          business relationships with it.  Without limiting the
          generality of the foregoing, and except as disclosed in
          the SEC Reports filed prior to the date of this
          Agreement, as otherwise expressly provided in this
          Agreement, as required by law or as set forth in Schedule
          6.1, prior to the Effective Time, neither the Company nor
          any of its subsidiaries will, without the prior written
          consent of Acquisition (which consent will be deemed to
          include the consent of any person designated from time to
          time by Acquisition by written notice to the Company):

                         (a)  amend its certificate or articles of
          incorporation or by-laws or equivalent organizational
          documents;

                         (b)  authorize for issuance, issue, sell,
          deliver or agree or commit to issue, sell or deliver
          (whether through the issuance or granting of options,
          warrants, commitments, subscriptions, rights to purchase
          or otherwise) any stock of any class or any other
          securities or equity equivalents (including, without
          limitation, stock appreciation rights), except as
          required by option agreements as in effect as of the date
          hereof or upon any conversion of Series A Preferred
          Shares, or amend any of the terms of any such securities
          or agreements outstanding as of the date hereof;

                         (c)  split, combine or reclassify any
          shares of its capital stock, declare, set aside or pay
          any dividend or other distribution (whether in cash,
          stock, or property or any combination thereof) in respect
          of its capital stock (except that the Company may declare
          and pay dividends on the Series A Preferred Shares in
          accordance with their terms and may declare and pay its
          regular quarterly cash dividends in respect of issued and
          outstanding Shares in an amount not to exceed $0.25 per
          Share per quarter; provided, that the record dates for
          determining the holders of Shares entitled to receive
          such regular quarterly cash dividends shall be the close
          of business on the last business day of each calendar
          quarter), or, except for the redemption of the Series A
          Preferred Shares pursuant hereto and pursuant to the
          Company's Restated Certificate of Incorporation, redeem,
          repurchase or otherwise acquire any of its securities or
          any securities of its subsidiaries;

                         (d)  (i) incur any indebtedness for
          borrowed money (except for short term indebtedness
          incurred in the ordinary course of business consistent
          with past practice pursuant to existing lines of credit)
          or issue any debt securities or, except in the ordinary
          course of business consistent with past practice, assume,
          guarantee or endorse the obligations of any other person;
          (ii) make any loans, advances or capital contributions
          to, or investments in, any other person (other than to
          wholly owned subsidiaries of the Company); (iii) pledge
          or otherwise encumber shares of capital stock of the
          Company or any of its subsidiaries; (iv) enter into or
          invest in any Derivative Financial Instruments except in
          the ordinary course of business consistent with the
          Company's current investment and risk management
          policies; or (v) except in the ordinary course of
          business consistent with past practice, mortgage or
          pledge any of its assets, tangible or intangible, or
          create or suffer to exist any Lien thereupon;

                         (e)  enter into, adopt or (except as may
          be required by law or the terms of any such arrangement)
          amend or terminate any bonus, profit sharing,
          compensation, severance, termination, stock option, stock
          appreciation right, restricted stock, performance unit,
          stock equivalent, stock purchase agreement, pension,
          retirement, deferred compensation, employment, severance
          or other employee benefit agreement, trust, plan, fund or
          other arrangement for the benefit or welfare of any
          director, officer or employee, or (except, in the case of
          employees who are not officers or directors, for normal
          compensation increases in the ordinary course of business
          consistent with past practice that, in the aggregate, do
          not result in a material increase in benefits or
          compensation expense to the Company) increase in any
          manner the compensation or benefits of any director,
          officer or employee or pay any benefit not required by
          any plan or arrangement as in effect as of the date
          hereof (including, without limitation, the granting of
          stock options, restricted stock, stock appreciation
          rights or performance units); 

                         (f)  acquire, sell, lease or dispose of
          any assets outside the ordinary course of business or any
          assets which in the aggregate are material to the Company
          and its subsidiaries, taken as a whole, or enter into any
          contract, agreement, commitment or transaction outside
          the ordinary course of business consistent with past
          practice;

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

                         (h)  (i) acquire (by merger,
          consolidation, or acquisition of stock or assets) any
          corporation, partnership or other business organization
          or division thereof; (ii) authorize any new capital
          expenditure or expenditures which, individually, is in
          excess of $1,000,000 or, in the aggregate, are in excess
          of $5,000,000; (iii) settle any litigations for amounts
          in excess of $200,000 individually or $1,000,000 in the
          aggregate; or (iv) enter into or amend any contract,
          agreement, commitment or arrangement with respect to any
          of the foregoing;

                         (i)  make any Tax election or settle or
          compromise any Tax liability, other than in the ordinary
          course of business;

                         (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 in the ordinary course
          of business consistent with past practice or in
          accordance with their terms, of liabilities set forth in
          Schedule 3.5(b) or reflected or reserved against in the
          consolidated financial statements (or the notes thereto)
          of the Company and its consolidated subsidiaries or
          incurred in the ordinary course of business consistent
          with past practice; 

                         (k)  terminate, modify, amend or waive
          compliance with any provision of any of the Significant
          Agreements, or fail to take any action necessary to
          preserve the benefits of any Significant Agreement to the
          Company or any of its subsidiaries; or

                         (l)  take, or agree in writing or
          otherwise to take, any of the actions described above in
          Section 6.1.

                    Section 6.2  Boards of Directors and
          Committees; Section 14(f).

                         (a)  Promptly following the purchase by
          Acquisition, Parent or their affiliates of the Dow Shares
          and from time to time thereafter, Acquisition shall be
          entitled to designate up to such number of directors,
          rounded up to the next whole number, on the Board that
          equals the product of (i) the total number of directors
          on the Board (giving effect to the election of any
          additional directors pursuant to this Section) and (ii)
          the percentage that the number of Shares owned by
          Acquisition and its affiliates (including any Shares
          purchased pursuant to the Stock Purchase Agreement) bears
          to the total number of outstanding Shares, and the
          Company shall, upon request by Acquisition, promptly
          either increase the size of the Board or use its
          reasonable best efforts to secure the resignation of such
          number of directors as is necessary to enable
          Acquisition's designees to be elected to the Board and
          shall cause Acquisition's designees to be so elected. 
          Promptly upon request by Acquisition, the Company will
          use its reasonable best efforts to cause persons
          designated by Acquisition to constitute the same
          percentage as is on the Board of (i) each committee of
          the Board, (ii) each board of directors of each
          subsidiary of the Company designated by Acquisition and
          (iii) each committee of each such board.  Simultaneously
          with the purchase by Acquisition, Parent or their
          affiliates of the Dow Shares, DCC shall use its
          reasonable best efforts to cause each employee of DCC who
          is on the Board to resign from the Board and from the
          board of directors of any subsidiary of the Company on
          which such individual serves.  Subject to the foregoing,
          the Company shall use its reasonable best efforts to
          ensure that all of the members of the Board as of the
          date hereof who are not employees of DCC shall remain
          members of the Board until the Effective Time.

                         (b)  The Company's obligations to appoint
          designees to the Board shall be subject to Section 14(f)
          of the Exchange Act, and Rule 14f-1 promulgated
          thereunder.  As promptly as practicable following the
          date of this Agreement, the Company shall take all
          actions required pursuant to Section 14(f) and Rule 14f-1
          in order to fulfill its obligations under this Section
          6.2 and shall file with the SEC and distribute to its
          stockholders such information as is required under
          Section 14(f) and Rule 14f-1.  Parent or Acquisition will
          supply to the Company in writing and be solely
          responsible for any information with respect to either of
          them and their nominees, officers, directors and
          affiliates required by Section 14(f) and Rule 14f-1.

                         (c)  Following the election or appointment
          of Acquisition's designees pursuant to this Section 6.2
          and prior to the Effective Time, any amendment of this
          Agreement or the Restated Certificate of Incorporation or
          By-Laws of the Company, any termination 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 Parent or Acquisition or any waiver of any of the
          Company's rights hereunder, will require the concurrence
          of a majority of the directors of the Company then in
          office who are not designees of Acquisition or employees
          of DCC or the Company.  From and after the purchase of
          the Dow Shares by Acquisition, Parent or their affiliates
          and prior to the Effective Time, Parent and Acquisition
          will cooperate with the Company to ensure that the Board
          at all times includes at least two directors who are not
          designees of Acquisition or employees of DCC or the
          Company.

                    Section 6.3  Proxy Statement; Schedule 13E-3. 

                         (a)  The Company shall, as promptly as
          practicable following the date hereof, prepare and file
          the Proxy Statement with the SEC under the Exchange Act. 
          As soon as practicable following completion of review of
          the Proxy Statement by the SEC, the Company shall mail
          the Proxy Statement to its stockholders who are entitled
          to vote at the Stockholders' Meeting.  Subject to the
          fiduciary obligations of the Board under applicable law,
          the Proxy Statement shall contain the recommendation of
          the Board that the stockholders of the Company adopt this
          Agreement and the Merger.

                         (b)  In the event Parent and the Company
          determine that the Schedule 13E-3 is required to be filed
          with the SEC in connection with the Merger, then, as
          promptly as practicable following notice of such
          determination, the Company, Parent and Acquisition shall
          prepare and file the Schedule 13E-3 with the SEC.  

                         (c)  The Company, Parent and Acquisition
          shall cooperate with one another in the preparation and
          filing of the Proxy Statement and the Schedule 13E-3 (if
          required to be filed) and shall use their reasonable best
          efforts to promptly obtain and furnish the information
          required to be included in the Proxy Statement and the
          Schedule 13E-3 and to respond promptly to any comments or
          requests made by the SEC with respect to the Proxy
          Statement or the Schedule 13E-3 (if required to be
          filed).  Each party hereto shall promptly notify the
          other parties of the receipt of comments of, or any
          requests by, the SEC with respect to the Proxy Statement
          or the Schedule 13E-3 (if required to be filed), and
          shall promptly supply the other parties with copies of
          all correspondence between such party (or its
          representatives) and the SEC (or its staff) relating
          thereto.  The Company, Parent and Acquisition each agrees
          to correct any information provided by it for use in the
          Proxy Statement or the Schedule 13E-3 (if required to be
          filed) which shall have become, or is, false or
          misleading.     

                    Section 6.4  Access to Information.  (a)
          Subject to applicable law and the agreements set forth in
          Section 6.4(b), between the date hereof and the Effective
          Time, the Company will give each of Parent and
          Acquisition and their counsel, financial advisors,
          auditors, and other authorized representatives reasonable
          access to all employees, plants, offices, warehouses and
          other facilities and to all books and records of the
          Company and its subsidiaries, will permit each of Parent
          and Acquisition and their respective counsel, financial
          advisors, auditors and other authorized representatives
          to make such inspections as Parent or Acquisition may
          reasonably require and will cause the Company's officers
          and those of its subsidiaries to furnish Parent or
          Acquisition or their representatives with such financial
          and operating data and other information with respect to
          the business and properties of the Company and any of its
          subsidiaries as Parent or Acquisition may from time to
          time reasonably request.  No investigation pursuant to
          this Section 6.4 shall affect any representations or
          warranties of the parties herein or the conditions to the
          obligations of the parties hereunder.  The foregoing
          shall not require the Company to permit any inspection,
          or to disclose any information, which in the reasonable
          judgment of the Company would result in the disclosure of
          any trade secrets of third parties or violate any
          obligation of the Company with respect to confidentiality
          if the Company shall have used reasonable efforts to
          obtain the consent of such third party to such inspection
          or disclosure.

                         (b)  Each of Parent and Acquisition agrees
          to be bound by the confidentiality agreement, dated as of
          August 18, 1994 (the "Confidentiality Agreement"), among
          Hoechst AG ("HAG"), Hoechst Celanese Corporation ("HCC"),
          Roussel Uclaf S.A. ("RU"), DCC and the Company as if the
          references to HAG, HCC and RU therein were to Parent and
          Acquisition, except that Parent and Acquisition may (i)
          enter into this Agreement and the Stock Purchase
          Agreement and (ii) acquire Shares pursuant to the Merger
          and the Stock Purchase Agreement.

                    Section 6.5  Reasonable Best Efforts.  Subject
          to the terms and conditions herein provided, each of the
          parties hereto agrees to use its reasonable best efforts
          to take, or cause to be taken, all actions, and to do, or
          cause to be done, all things reasonably necessary, proper
          or advisable under applicable laws and regulations to
          consummate and make effective the transactions
          contemplated by this Agreement and the Stock Purchase
          Agreement.  Without limiting the generality of the
          foregoing, Parent, Acquisition, DCC and the Company shall
          cooperate with one another (i) in the preparation and
          filing of any required filings under the HSR Act and the
          other laws referred to in Sections 3.4(b), 4.3(b) and
          5.3(b); (ii) in determining whether action by or in
          respect of, or filing with, any governmental body,
          agency, official or authority (either domestic or
          foreign) is required, proper or advisable or any actions,
          consents, waivers or approvals are required to be
          obtained from parties to any contracts, in connection
          with the transactions contemplated by this Agreement and
          the Stock Purchase Agreement; and (iii) in seeking timely
          to obtain any such actions, consents and waivers and to
          make any such filings.  In case at any time after the
          Effective Time any further action is necessary or
          desirable to carry out the purposes of this Agreement,
          the proper officers and directors of each party hereto
          shall take all such necessary action.

                    Section 6.6  Public Announcements.  Parent and
          Acquisition, on the one hand, and DCC and the Company, on
          the other hand, will consult with each other before
          issuing any press release with respect to the
          transactions contemplated by this Agreement and the Stock
          Purchase Agreement, and shall not issue any such press
          release prior to such consultation, except as may be
          required by applicable law or by applicable rules of any
          securities exchange.

                    Section 6.7  Indemnification; Insurance.  

                         (a)  From and after the purchase by
          Acquisition, Parent or their affiliates of the Dow
          Shares, Parent and Acquisition shall indemnify and hold
          harmless each person who is, or has been at any time
          prior to the date hereof or who becomes prior to the
          Effective Time, an officer, director or employee of the
          Company or any of its subsidiaries (collectively, the
          "Indemnified Parties" and individually, the "Indemnified
          Party") against all losses, liabilities, expenses, claims
          or damages in connection with any claim, suit, action,
          proceeding or investigation based in whole or in part on
          the fact that such Indemnified Party is or was a
          director, officer or employee of the Company or any of
          its subsidiaries and arising out of acts or omissions
          occurring prior to and including the Effective Time
          (including but not limited to the transactions
          contemplated by this Agreement) to the fullest extent
          permitted by Delaware Law, for a period of not less than
          six years following the Effective Time; provided that in
          the event any claim or claims are asserted or made within
          such six-year period, all rights to indemnification in
          respect of any such claim or claims shall continue until
          final disposition of any and all such claims.

                         (b)  Parent shall cause the Certificate of
          Incorporation and By-Laws of the Surviving Corporation
          and its subsidiaries to include provisions for the
          limitation of liability of directors and indemnification
          of the Indemnified Parties to the fullest extent
          permitted under applicable law and shall not permit the
          amendment of such provisions in any manner adverse to the
          Indemnified Parties, as the case may be, without the
          prior written consent of such persons, for a period of
          six years from and after the date hereof.  

                         (c)  Without limitation of the foregoing,
          in the event any such Indemnified Party is or becomes
          involved in any capacity in any action, proceeding or
          investigation in connection with any matter, including,
          without limitation, the transactions contemplated by this
          Agreement, occurring prior to, and including, the
          Effective Time, Parent will pay as incurred such
          Indemnified Party's legal and other expenses (including
          the cost of any investigation and preparation) incurred
          in connection therewith.  Parent shall pay all expenses,
          including attorneys' fees, that may be incurred by any
          Indemnified Party in enforcing the indemnity and other
          obligations provided for in this Section 6.7 or any
          action involving an Indemnified Party resulting from the
          transactions contemplated by this Agreement.

                         (d)  For six years after the Effective
          Time, the Surviving Corporation shall cause to be
          maintained the current policies of directors' and
          officers' liability insurance maintained by the Company
          (provided that the Surviving Corporation may substitute
          therefor policies of at least the same coverage
          containing terms and conditions which are substantially
          equivalent) with respect to matters occurring prior to
          the Effective Time, to the extent such policies are
          available; provided, that in no event shall the Surviving
          Corporation be required to expend, in order to maintain
          or procure insurance coverage pursuant to this Section
          6.7(c), any amount per annum greater than 125% of the
          current annual premiums paid by the Company for such
          insurance (which the Company represents and warrants to
          be not more than $620,000).

                         (e)  Any determination to be made as to
          whether any Indemnified Party has met any standard of
          conduct imposed by law shall be made by legal counsel
          reasonably acceptable to such Indemnified Party, Parent
          and the Surviving Corporation, retained at Parent's and
          the Surviving Corporation's expense.

                         (f)  This Section 6.7 is intended to
          benefit the Indemnified Parties and their respective
          heirs, executors and personal representatives and shall
          be binding on the successors and assigns of Parent,
          Acquisition and the Surviving Corporation.

                    Section 6.8  Notification of Certain Matters. 
          The Company shall give prompt notice to Parent or
          Acquisition, and Parent or Acquisition shall give prompt
          notice to the Company, upon becoming aware of (i) the
          occurrence, or non-occurrence, of any event the
          occurrence, or non-occurrence of which would cause any
          representation or warranty contained in this Agreement to
          be untrue or inaccurate and (ii) any failure of the
          Company, Parent or Acquisition, as the case may be, to
          comply with or satisfy any covenant, condition or
          agreement to be complied with or satisfied by it
          hereunder; provided, that the delivery of any notice
          pursuant to this Section 6.8 shall not limit or otherwise
          affect the remedies available hereunder to the party
          receiving such notice.

                    Section 6.9  Redemption of Series A Preferred
          Stock; Termination of Stock Plans.  (a) Effective
          immediately prior to the Merger, the Company shall redeem
          for cash all of the outstanding Series A Preferred Shares
          at the applicable redemption price determined in
          accordance with the Company's Restated Certificate of
          Incorporation (which shall not exceed $37.41 per Series A
          Preferred Share).  Upon such redemption, the Company
          shall retire the shares so redeemed and restore such
          shares to the status of authorized but unissued shares of
          Preferred Stock, par value $1.00 per share, undesignated
          as to series.  The foregoing provisions of this Section
          6.9 shall be of no further force or effect if the Company
          purchases all of the outstanding Series A Preferred
          Shares prior to the Merger.

                         (b)  Except as may be otherwise agreed to
          by the Parent and the Company, the Company Plans shall
          terminate as of the Effective Time.  Prior to the
          purchase by Parent, Acquisition and their affiliates of
          the Dow Shares, the Board (or, if appropriate, any
          committee thereof) shall adopt such resolutions or take
          such other actions as are required to (i) effect the
          transactions contemplated by Section 1.8 hereof and (ii)
          with respect to any stock option, stock appreciation or
          other stock benefit plan of the Company or any of its
          subsidiaries not addressed by the preceding clause (i),
          ensure that, following the Effective Time, no participant
          therein shall have any right thereunder to acquire any
          capital stock of the Surviving Corporation or any
          subsidiary thereof.

                         (c)  Between the date of this Agreement
          and the Effective Time, the Company shall reasonably
          cooperate with Parent and Acquisition in structuring
          transactions (including those described in Sections
          1.8(a), 1.8(b) and 6.9(b)) with respect to Employee
          Options and Performance Shares so as to optimize the tax
          treatment of the Company, Parent and Acquisition in
          connection therewith.

                    Section 6.10  No Solicitation.  (a) The Company
          will immediately cease any existing discussions or
          negotiations with any third parties conducted prior to
          the date hereof with respect to any Acquisition Proposal
          (as defined below).  The Company shall not, directly or
          indirectly, through any officer, director, employee,
          representative or agent or any of its subsidiaries, (i)
          solicit, initiate, or encourage any inquiries or
          proposals that constitute, or would lead to, a proposal
          or offer for a merger, consolidation, business
          combination, sale of substantial assets, sale of a
          substantial percentage of shares of capital stock
          (including, without limitation, by way of a tender offer)
          or similar transactions involving the Company or any of
          its subsidiaries, other than the transactions
          contemplated by this Agreement (any of the foregoing
          inquiries or proposals being referred to in this
          Agreement as an "Acquisition Proposal"), (ii) subject to
          the fiduciary duties of the Board under applicable law,
          engage in negotiations or discussions concerning, or
          provide any non-public information to any person or
          entity relating to, any Acquisition Proposal, or (iii)
          agree to, approve or recommend any Acquisition Proposal;
          provided, that nothing contained in this Section 6.10
          shall prevent the Company from, and the Company may
          without any liability for breach of this Agreement, (A)
          furnish information to, or enter into discussions or
          negotiations with, any person in connection with an
          unsolicited bona fide written Acquisition Proposal by
          such person or recommend an Acquisition Proposal to the
          stockholders of the Company, if and only to the extent
          that the Board determines in good faith after
          consultation with outside legal counsel that such action
          is necessary for the Board to comply with its fiduciary
          duties to stockholders under applicable law and prior to
          furnishing such information to, or entering into
          discussions or negotiations with, such person, the Board
          receives from such person an executed confidentiality
          agreement with terms no less favorable to the Company
          than those contained in the Confidentiality Agreement; or
          (B) comply with Rules 14d-9 and 14e-2 promulgated under
          the Exchange Act with regard to an Acquisition Proposal.

                         (b)  The Company shall notify Parent
          immediately (and no later than 24 hours) after receipt by
          the Company of any Acquisition Proposal or any request
          for non-public information in connection with an
          Acquisition Proposal or for access to the properties,
          books or records of the Company by any person or entity
          that informs the Company that it is considering making,
          or has made, an Acquisition Proposal.  Such notice shall
          be made orally and shall indicate the identity of the
          offeror and the terms and conditions of such proposal,
          inquiry or contract.

                   Section 6.11  Undisclosed Agreements.  If,
          after the date hereof, Parent becomes aware that there
          are any contracts, agreements and commitments (oral or
          written; provided, that oral agreements referred to in
          this Section 6.11 shall not include oral agreements
          entered into pursuant to any contracts, agreements or
          commitments listed on Schedule 4.5) existing as of the
          date of this Agreement between the Company or any of its
          subsidiaries, on the one hand, and DCC or any of its
          affiliates (other than the Company and its subsidiaries),
          on the other hand, which are not set forth in Schedule
          4.5, then, from and after the purchase by Acquisition,
          Parent or their affiliates of the Dow Shares, the Company
          and, following the Effective Time, the Surviving
          Corporation shall have the right, exercisable within 60
          days after Parent becomes aware of such contract,
          agreement or commitment, to, at its sole discretion,
          terminate (effective as of the date on which Acquisition,
          Parent or their affiliates purchase the Dow Shares;
          provided, that any payments (not in excess of the fair
          market value of the goods or services to which such
          payments relate) made to DCC or any of its affiliates
          pursuant to such contract, agreement or commitment shall
          not be required to be repaid pursuant to this clause) any
          or all of such contracts, agreements or commitments, and
          neither Parent nor the Company nor any of their
          respective subsidiaries shall incur or be subject to any
          penalty or liability whatsoever with respect to such
          termination.  DCC agrees to be, and agrees to cause its
          applicable affiliates to be, bound by any such
          termination.  The termination provisions set forth in
          this Section 6.11 shall be the sole remedy of Parent,
          Acquisition and the Company, and their affiliates, for
          any breach of the representations and warranties set
          forth in Section 4.5.

                    Section 6.12  Employee Matters.  (a) For a
          period of at least two years after the Effective Time,
          Parent shall cause the Surviving Corporation to provide
          benefit plans (other than any stock-based plans, programs
          or arrangements) that are in the aggregate substantially
          as favorable as the Company's existing compensation,
          welfare and pension benefit plans, programs and
          arrangements for the benefit of current and former
          employees and directors of the Company (subject to such
          modification as may be required by applicable law).

                         (b)  If any employee of the Company or any
          of its subsidiaries becomes a participant in any employee
          benefit or compensation plan, arrangement, practice or
          policy of Parent or any affiliate of Parent, such
          employee shall be given credit for eligibility and
          vesting under such plan for all service prior to the
          Effective Time with the Company, any of its subsidiaries,
          affiliates or any predecessors for which the employee
          would have been credited in the Company's plans
          immediately prior to the Effective Time.

                    Section 6.13  Acquisition.  (a) Prior to the
          purchase by Acquisition, Parent or their affiliates of
          the Dow Shares, each of Parent and Acquisition shall take
          all steps necessary to cause Acquisition to become a
          direct wholly owned subsidiary of Parent and remain so
          until the Effective Time.

                         (b)  Parent will take all action necessary
          to cause Acquisition to perform its obligations hereunder
          and to consummate the Merger on the terms and conditions
          set forth herein.

                    Section 6.14  Certain Intercompany Accounts and
          Matters.  Effective as of the purchase by Parent,
          Acquisition or their affiliates of the Dow Shares, DCC
          and its subsidiaries, on the one hand, and the Company
          and its subsidiaries, on the other hand, shall repay all
          outstanding intercompany obligations between them for
          borrowed money, in accordance with the terms of such
          obligations; provided, that any such obligations between
          Marion Merrell Dow KK and Dow Chemical Japan ("Japanese
          Intercompany Accounts") may remain outstanding until
          December 31, 1995; provided, further, that Parent shall
          cause Marion Merrell Dow KK to perform its obligations
          with respect to the Japanese Intercompany Accounts and
          Parent  guarantees the performance of the obligations of
          Marion Merrell Dow KK with respect to the Japanese
          Intercompany Accounts.

                    Section 6.15  Stock Purchase Agreement.  Upon
          the terms and subject to the conditions set forth in the
          Stock Purchase Agreement, Parent shall cause Acquisition
          to, and Acquisition shall, purchase the Dow Shares.

                    Section 6.16  Name Changes. (a) Within 90 days
          following the purchase of the Dow Shares by Parent,
          Acquisition or their affiliates, the Company shall cause
          its subsidiaries to delete "DOW" from their respective
          company names and within the same 90 days initiate all
          the necessary legal filings with the appropriate local
          governmental authority to effectuate a name change to a
          new name that does not contain DOW or a name confusingly
          similar to DOW.  Within eighteen (18) months following
          the purchase of the Dow Shares by Parent, Acquisition or
          their affiliates, the Company and its subsidiaries will
          also replace their current names, which include DOW, to
          their new company names on all stationary, business
          cards, real and personal property, directories, labels,
          advertising and promotional material, drug registrations
          and any and all applications, registrations or other
          documents filed or to be filed with international,
          national and local governmental offices, agencies or
          authorities in any country.

                         (b)  From and after the date Acquisition,
          Parent or their affiliates purchase the Dow Shares, the
          Company shall indemnify and hold DCC and its subsidiaries
          harmless from and against the out-of-pocket costs and
          expenses described in the next sentence of this Section
          6.16(b) which DCC or its subsidiaries incur as a result
          of defending any suits, claims, administrative or legal
          proceedings brought against DCC or any of its
          subsidiaries to the extent that the basis of any such
          suit, claim or proceeding is premised on the use of the
          name and trademark DOW by the Company or any of its
          subsidiaries or on their products.  The Company's
          indemnification under this Section 6.16(b) shall be
          limited solely to the out-of-pocket costs and expenses
          (including reasonable fees and expenses of outside
          counsel) incurred by DCC or its subsidiaries in
          successfully obtaining dismissal or other favorable
          disposition of any such suits, claims or proceedings but
          shall not include the amounts of any settlement payments,
          judgments or other payments of any type.

                    Section 6.17  1989 Stock Acquisition Agreement. 
          Notwithstanding Section 10.1 of the 1989 Stock
          Acquisition Agreement, dated as of July 17, 1989 among
          the Company, RH Acquisition Corp. and DCC (the "1989
          Stock Acquisition Agreement"), Section 7.23 of the 1989
          Stock Acquisition Agreement is hereby waived by the
          Company and DCC and shall be of no further effect from
          and after the purchase of the Dow Shares by Parent,
          Acquisition or their affiliates; provided, however, that
          nothing herein shall be deemed to amend, waive or
          supersede any other provision of the 1989 Stock
          Acquisition Agreement, including, without limitation,
          Section 7.18 and Section 7.19 thereof.

                                 ARTICLE VII

                   CONDITIONS TO CONSUMMATION OF THE MERGER

                    Section 7.1  Conditions to the Company's,
          Parent's and Acquisition's Obligation to Effect the
          Merger.  The respective obligations of the Company,
          Parent and Acquisition to effect the Merger are subject
          to the satisfaction at or prior to the Effective Time of
          the following conditions:

                         (a)  this Agreement shall have been
          adopted by the affirmative vote of the stockholders of
          the Company by the requisite vote in accordance with
          Delaware Law; 

                         (b)  any waiting period applicable to the
          Merger under the HSR Act, EC Merger Regulation and the
          Canadian Competition Act shall have terminated or
          expired;

                         (c)  no statute, rule, regulation,
          executive order, decree, ruling, injunction or other
          order shall have been enacted, entered, promulgated or
          enforced by any court or governmental or supranational
          authority of competent jurisdiction within the United
          States or the European Community which prohibits the
          Merger or makes the Merger illegal; and

                         (d)  Acquisition, Parent or their
          affiliates shall have purchased the Dow Shares. 

                                 ARTICLE VIII

                        TERMINATION; AMENDMENT; WAIVER

                    Section 8.1  Termination.  This Agreement may
          be terminated and the Merger may be abandoned at any time
          prior to the Effective Time, notwithstanding approval
          thereof by the stockholders of the Company:

                        (a)  by mutual written consent of Parent,
          Acquisition, DCC and the Company;

                         (b)  by Parent, DCC or the Company if any
          court or governmental or supranational authority of
          competent jurisdiction within the United States or the
          European Community shall have issued an order, decree or
          ruling or taken any other action restraining, enjoining
          or otherwise prohibiting the Merger and such order,
          decree, ruling or other action shall have become final
          and nonappealable;

                         (c)   by Parent, DCC or the Company, at
          any time after January 31, 1996, if the Merger shall not
          have occurred by such date; provided, that the right to
          terminate this Agreement under this subparagraph (c)
          shall not be available to any party whose failure to
          fulfill any obligation under this Agreement has been the
          cause or resulted in the failure of the Merger to have
          occurred by such date; provided, further, that no party
          hereto shall have the right to terminate this Agreement
          under this subparagraph (c) if Acquisition, Parent or
          their affiliates shall have acquired the Dow Shares; 

                         (d)  by Parent, at any time prior to the
          purchase by Acquisition, Parent or their affiliates of
          the Dow Shares, if (i) there shall have been a breach of
          any representation or warranty of the Company contained
          herein or of Dow contained in the Stock Purchase
          Agreement which would have a Material Adverse Effect or
          prevent the consummation of the Merger or the
          transactions contemplated by the Stock Purchase
          Agreement, (ii) there shall have been a breach of any
          covenant or agreement of the Company or DCC contained
          herein or of Dow contained in the Stock Purchase
          Agreement which would have a Material Adverse Effect or
          prevent the consummation of the Merger or the
          transactions contemplated by the Stock Purchase
          Agreement, which shall not have been cured prior to two
          business days following notice of such breach, or (iii)
          the Board shall have withdrawn or modified in a manner
          adverse to Parent its approval or recommendation of this
          Agreement, the Merger or the transactions contemplated by
          the Stock Purchase Agreement or shall have recommended,
          or the Company shall have entered into an agreement
          providing for, an Acquisition Proposal, or the Board
          shall have resolved to do any of the foregoing;

                         (e)  by DCC if Acquisition fails to
          purchase the Dow Shares in violation of Acquisition's
          obligations under the Stock Purchase Agreement; or

                         (f)  at any time prior to the purchase by
          Acquisition, Parent or their affiliates of the Dow
          Shares, by the Company, DCC or Parent in the event the
          Stock Purchase Agreement shall have been terminated by
          the mutual written consent of the parties thereto.

                    Section 8.2  Effect of Termination.  In the
          event of the termination and abandonment of this
          Agreement pursuant to Section 8.1, this Agreement shall
          forthwith become void and have no effect, without any
          liability on the part of any party hereto, other than the
          provisions of this Section 8.2 and Section 8.3.  The
          termination of this Agreement shall not relieve any party
          from liability for any breach of this Agreement.

                    Section 8.3  Fees and Expenses.  Each party
          shall bear its own expenses and costs in connection with
          this Agreement and the transactions contemplated hereby.

                    Section 8.4  Amendment.  Subject to Section
          6.2(c), this Agreement may be amended by action taken by
          the Company, DCC, Parent and Acquisition at any time
          before or after adoption of the Merger by the
          stockholders of the Company but, after any such approval,
          no amendment shall be made which decreases the Merger
          Consideration or changes the form thereof or which
          adversely affects the rights of the Company's
          stockholders hereunder without the approval of such
          stockholders.  This Agreement may not be amended except
          by an instrument in writing signed on behalf of each of
          the parties hereto.

                    Section 8.5  Extension; Waiver.  Subject to
          Section 6.2(c), at any time prior to the Effective Time,
          the Company and DCC, on the one hand, and Parent and
          Acquisition, on the other hand, may (i) extend the time
          for the performance of any of the obligations or other
          acts of the other party, (ii) waive any inaccuracies in
          the representations and warranties of the other party
          contained herein or in any document, certificate or
          writing delivered pursuant hereto, or (iii) waive
          compliance by the other party with any of the agreements
          or conditions contained herein.  Any agreement on the
          part of any party hereto to any such extension or waiver
          shall be valid only if set forth in an instrument in
          writing signed on behalf of such party.  The failure of
          any party hereto to assert any of its rights hereunder
          shall not constitute a waiver of such rights.

                                  ARTICLE IX

                                MISCELLANEOUS

                    Section 9.1  Nonsurvival of Representations and
          Warranties.  The representations and warranties made
          herein shall not survive beyond the purchase by
          Acquisition, Parent or their affiliates of the Dow
          Shares.  The covenants and agreements herein shall
          survive in accordance with their respective terms.

                    Section 9.2  Entire Agreement; Assignment. 
          This Agreement (including the Schedules hereto), the
          Stock Purchase Agreement and the Confidentiality
          Agreement (i) constitute the entire agreement among the
          parties hereto with respect to the subject matter hereof
          and supersede all other prior agreements and
          understandings, both written and oral, among the parties
          with respect to the subject matter hereof and (ii) shall
          not be assigned by operation of law or otherwise;
          provided that Acquisition may assign its rights and
          obligations in whole or in part to any direct subsidiary
          of Parent (provided that such transferee agrees in
          writing to be bound by this Agreement), but no such
          assignment shall relieve Acquisition of its obligations
          hereunder if such assignee does not perform such
          obligations.

                    Section 9.3  Notices.  All notices, requests,
          claims, demands and other communications hereunder shall
          be in writing and shall be given (and shall be deemed to
          have been duly given upon receipt) by delivery in person,
          by facsimile or by registered or certified mail (postage
          prepaid, return receipt requested), to the other party as
          follows:

                    if to Parent or Acquisition:

                         Hoechst Corporation
                         Route 202-206
                         P.O. Box 2500
                         Somerville, New Jersey  08876-1258
                         Fax: 908-231-4848
                         Attention: Harry R. Benz 


                    with copies to:

                         Hoechst AG
                         65926 Frankfurt am Main
                         Germany
                         Fax: 011-49-69-319-113 
                         Attention: Peter Schuster 

                         and

                         Skadden, Arps, Slate, Meagher & Flom
                         919 Third Avenue
                         New York, New York  10022
                         Fax: 212-735-2000
                         Attention: Roger S. Aaron
                                        and
                                    Franklin M. Gittes

                    if to the Company:

                         Marion Merrell Dow Inc.
                         9300 Ward Parkway
                         Kansas City, Missouri  64114
                         Fax: 816-966-3805
                         Attention: General Counsel

                    with copies to:

                         Shook, Hardy & Bacon PC
                         One Kansas City Place
                         1200 Main Street
                         Kansas City, Missouri  64105-2118
                         Fax: 816-421-5547
                         Attention: Jennings J. Newcom
                                        and
                                    Randall B. Sunberg

                         and

                         Sullivan & Cromwell
                         125 Broad Street
                         New York, New York  10004
                         Fax:  212-558-3355
                         Attention:  Francis J. Aquila


                    if to DCC, to:

                         The Dow Chemical Company
                         2030 Dow Center
                         Midland, Michigan  48674
                         Fax:  517-636-0861
                         Attention: Jane M. Gootee

                    with a copy to:

                         Mayer, Brown & Platt
                         190 South LaSalle Street
                         Chicago, Illinois  60603-3441
                         Fax:  312-701-7711
                         Attention:  Scott J. Davis

          or to such other address as the person to whom notice is
          given may have previously furnished to the other in
          writing in the manner set forth above.

                    Section 9.4  Governing Law.  This Agreement
          shall be governed by and construed in accordance with the
          law of the State of Delaware, without regard to the
          principles of conflicts of law thereof.  Each of the
          parties hereto hereby irrevocably and unconditionally
          consents to submit to jurisdiction of the courts of the
          State of Delaware and of the United States of America
          located in the State of Delaware (the "Delaware Courts")
          for any litigation arising out of or relating to this
          Agreement and the transactions contemplated hereby (and
          agrees not to commence any litigation relating thereto
          except in such Delaware Courts), waives any objection to
          the laying of venue of any such litigation in the
          Delaware Courts and agrees not to plead or claim in any
          Delaware Court that such litigation brought therein has
          been brought in an inconvenient forum.

                    Section 9.5  Parties in Interest.  This
          Agreement shall be binding upon and inure solely to the
          benefit of each party hereto and its successors and
          permitted assigns, and, except as provided in Section 6.7
          nothing in this Agreement, express or implied, is
          intended to or shall confer upon any other person any
          rights, benefits or remedies of any nature whatsoever
          under or by reason of this Agreement.

                    Section 9.6  Remedies.  The parties hereto
          agree that irreparable damage would occur in the event
          any provision of this Agreement was not performed in
          accordance with the terms hereof and that the parties
          shall be entitled to specific performance of the terms
          hereof, in addition to any other remedy at law or in
          equity.  Notwithstanding anything to the contrary
          contained herein, the Company's exclusive remedy for
          Parent's or Acquisition's breach of Section 6.15 shall be
          an action for monetary damages.

                    Section 9.7  Severability.  The provisions of
          this Agreement shall be deemed severable and the
          invalidity or unenforceability of any provision shall not
          affect the validity and enforceability of the other
          provisions hereof.  If any provision of this Agreement,
          or the application thereof to any person or entity or any
          circumstance, is invalid or unenforceable, (a) a suitable
          and equitable provision shall be substituted therefor in
          order to carry out, so far as may be valid and
          enforceable, the intent and purpose of such invalid and
          unenforceable provision and (b) the remainder of this
          Agreement and the application of such provision to other
          persons, entities or circumstances shall not be affected
          by such invalidity or unenforceability, nor shall such
          invalidity or unenforceability affect the validity or
          enforceability of such provision, or the application
          thereof, in any other jurisdiction.

                    Section 9.8  Descriptive Headings.  The
          descriptive headings herein are inserted for convenience
          of reference only and are not intended to be part of or
          to affect the meaning or interpretation of this
          Agreement.

                    Section 9.9  Certain Definitions.  For purposes
          of this Agreement, the term:

                    (a)  "affiliate" of a person means a person
          that directly or indirectly, through one or more
          intermediaries, controls, is controlled by, or is under
          common control with, the first mentioned person;

                    (b)  "control" (including the terms "controlled
          by" and "under common control with") means the
          possession, directly or indirectly or as trustee or
          executor, of the power to direct or cause the direction
          of the management policies of a person, whether through
          the ownership of stock, as trustee or executor, by
          contract or credit arrangement or otherwise;

                    (c)  "generally accepted accounting principles"
          shall mean the generally accepted accounting principles
          set forth in the opinions and pronouncements of the
          Accounting Principles Board of the American Institute of
          Certified Public Accountants and statements and
          pronouncements of the Financial Accounting Standards
          Board or in such other statements by such other entity as
          may be approved by a significant segment of the
          accounting profession in the United States, in each case
          applied on a basis consistent with the manner in which
          the audited financial statements for the fiscal year of
          the Company ended December 31, 1994 were prepared;

                    (d)  "person" means an individual, corporation,
          partnership, association, trust, unincorporated
          organization, other entity or group (as defined in
          Section 13(d)(3) of the Exchange Act); and

                    (e)  "subsidiary" or "subsidiaries" of any
          person means any corporation, partnership, joint venture
          or other legal entity of which such person (either alone
          or through or together with any other subsidiary), owns,
          directly or indirectly, 50% or more of the stock or other
          equity interests the holder of which is generally
          entitled to vote for the election of the board of
          directors or other governing body of such corporation,
          partnership, joint venture or other legal entity;
          provided, that Carderm Capital L.P., a Delaware limited
          partnership, shall be deemed a subsidiary of the Company
          for all purposes under this Agreement.

                    Section 9.10  Counterparts.  This Agreement may
          be executed in two or more counterparts, each of which
          shall be deemed to be an original, but all of which shall
          constitute one and the same agreement.

                    IN WITNESS WHEREOF, each of the parties has
          caused this Agreement to be executed on its behalf by its
          representatives thereunto duly authorized, all as of the
          day and year first above written.

                                   HOECHST CORPORATION

                                   By: /s/ Harry R. Benz              
                                        Name:  Harry R. Benz
                                        Title: Secretary and Treasurer

                                   H PHARMA ACQUISITION CORP.

                                   By: /s/ Klaus Schmieder            
                                        Name:  Klaus Schmieder
                                        Title: Vice President and
                                               Treasurer

                                   MARION MERRELL DOW INC.

                                   By: /s/ Fred W. Lyons, Jr.         
                                        Name:  Fred W. Lyons, Jr.
                                        Title: Chairman and Chief
                                               Executive Officer

                                   THE DOW CHEMICAL COMPANY

                                   By: /s/ Enrique C. Falla           
                                        Name:  Enrique C. Falla
                                        Title: Executive Vice 
                                               President and Chief
                                               Financial Officer





                                                             EXHIBIT 2


                                                        CONFORMED COPY

                            STOCK PURCHASE AGREEMENT

                    THIS STOCK PURCHASE AGREEMENT, dated as of   May
          3, 1995, is among Hoechst Corporation, a Delaware
          corporation ("Parent"), H Pharma Acquisition Corp., a
          Delaware corporation ("Acquisition"), The Dow Chemical
          Company, a Delaware corporation ("DCC"), RH Acquisition
          Corp., a Delaware corporation and a wholly owned subsidiary
          of DCC ("RHAC"), and Dow Holdings Inc., a Delaware
          corporation and a wholly owned subsidiary of DCC ("DHI"). 
          DCC, RHAC and DHI are sometimes individually referred to
          herein as a "Seller" and are sometimes collectively referred
          to herein as the "Sellers".

                    WHEREAS, simultaneously with the execution and
          delivery of this Agreement, Parent, Acquisition, DCC and
          Marion Merrell Dow Inc., a Delaware corporation (the
          "Company"), are entering into an Agreement and Plan of
          Merger (the "Merger Agreement"), which provides, among other
          things, upon the terms and subject to the conditions
          thereof, that (i) Acquisition will be merged with and into
          the Company in accordance with the General Corporation Law
          of the State of Delaware ("Delaware Law") and (ii) each
          share of common stock, par value $0.10 per share, of the
          Company (the "Shares"), issued and outstanding immediately
          prior to the Effective Time (as defined in the Merger
          Agreement) will, except as otherwise expressly provided in
          the Merger Agreement, be converted into the right to receive
          the Merger Consideration (as defined in the Merger
          Agreement); 

                    WHEREAS, each Seller owns the number of Shares
          (the "Seller's Shares") set forth on Schedule A hereto
          opposite the name of such Seller; and

                    WHEREAS, in order to induce Parent and Acquisition
          to enter into the Merger Agreement, each Seller has agreed
          to enter into this Agreement.

                    NOW, THEREFORE, in consideration of the foregoing
          and the mutual covenants and agreements herein contained,
          and intending to be legally bound hereby, Parent,
          Acquisition and the Sellers hereby agree as follows.

                    Section 1.  Capitalized Terms.  Capitalized terms
          used but not defined herein shall have the meanings assigned
          to such terms in the Merger Agreement.

                    Section 2.  Representations and Warranties of
          Sellers.  Each Seller represents and warrants to Parent and
          Acquisition as follows: 

                    (a)  Such Seller is a corporation duly organized,
          validly existing and in good standing under the laws of the
          jurisdiction of its incorporation.

                  (b)  Such Seller has all necessary corporate power
          and authority to execute and deliver this Agreement, to
          perform its obligations hereunder and to consummate the
          transactions contemplated hereby.  

                    (c)  The execution, delivery and performance of
          this Agreement and the consummation of the transactions
          contemplated hereby have been duly and validly authorized by
          the board of directors of such Seller and the sole
          stockholder of RHAC and (indirectly) DHI and no other
          corporate proceedings on the part of any Seller are
          necessary to authorize this Agreement or to consummate the
          transactions so contemplated.  

                    (d)  This Agreement has been duly and validly
          executed and delivered by such Seller and constitutes a
          legal, valid and binding agreement of such Seller
          enforceable against such Seller in accordance with its
          terms. 

                    (e)  The execution, delivery and performance by
          such Seller of this Agreement and the consummation of the
          transactions contemplated hereby do not and will not
          (i) contravene or conflict with the Certificate of
          Incorporation or By-Laws of such Seller; (ii) assuming that
          all consents, authorizations and approvals contemplated by
          subsection (f) below have been obtained and all filings
          described therein have been made, contravene or conflict
          with or constitute a violation of any provision of any law,
          regulation, judgment, injunction, order or decree binding
          upon or applicable to such Seller, any of its subsidiaries
          or any of its properties; (iii) conflict with, or result in
          the breach or termination of any provision of or constitute
          a default (with or without the giving of notice or the lapse
          of time or both) under, or give rise to any right of
          termination, cancellation, or loss of any benefit to which
          such Seller or any of its subsidiaries is entitled under any
          provision of any agreement, contract, license or other
          instrument binding upon such Seller, any of its subsidiaries
          or any of their respective properties, or allow the
          acceleration of the performance of, any obligation of such
          Seller or any of its subsidiaries under any indenture,
          mortgage, deed of trust, lease, license, contract,
          instrument or other agreement to which such Seller or any of
          its subsidiaries is a party or by which such Seller or any
          of its subsidiaries or any of their respective assets or
          properties is subject or bound; or (iv) result in the
          creation or imposition of any Lien on any asset of such
          Seller or any of its subsidiaries, except in the case of
          clauses (ii), (iii) and (iv) for any such contraventions,
          conflicts, violations, breaches, terminations, defaults,
          cancellations, losses, accelerations and Liens which would
          not individually or in the aggregate be reasonably expected
          to prevent the consummation by such Seller of the
          transactions contemplated by this Agreement. 

                    (f)  The execution, delivery and performance by
          such Seller of this Agreement and the consummation of the
          transactions contemplated hereby by such Seller require no
          action by or in respect of, or filing with, any governmental
          body, agency, official or authority (either domestic or
          foreign) other than (i) compliance with any applicable
          requirements of the HSR Act, the EC Merger Regulation and
          the Canadian Competition Act; (ii) compliance with any
          applicable requirements of the Exchange Act and state
          securities, takeover and Blue Sky laws; (iii) the filing of
          a notice pursuant to Exon-Florio; and (iv) such actions or
          filings which, if not taken or made, would not individually
          or in the aggregate be reasonably expected to prevent the
          consummation by such Seller of the transactions contemplated
          by this Agreement.

                    (g)  Except as previously disclosed by the Sellers
          to Parent and Acquisition, as of the date hereof, there is
          no action, suit, claim, investigation or proceeding pending
          against, or to the knowledge of the Sellers, threatened
          against, any Seller or any of its subsidiaries or any of
          their respective properties before any court or arbitrator
          or any administrative, regulatory or governmental body, or
          any agency or official which challenges or seeks to prevent,
          enjoin, alter or delay the Merger or any of the other
          transactions contemplated hereby or by the Merger Agreement. 
          As of the date hereof, none of the Sellers, none of their
          respective subsidiaries and none of their respective
          properties is subject to any order, writ, judgment,
          injunction, decree, determination or award which would
          prevent or delay the consummation of the transactions
          contemplated hereby.

                    (h)  Such Seller has, and at any Closing (as
          defined below) hereunder such Seller will have, good and
          valid title to such Seller's Shares, free and clear of any
          Liens.

                    (i)  There are no options or rights to acquire, or
          any agreements to which such Seller is a party relating to,
          such Seller's Shares, other than this Agreement.

                    (j)  The transfer of such Seller's Shares
          hereunder to Acquisition will transfer to Acquisition good
          and valid title to such Seller's Shares, free and clear of
          any Liens.

                    (k)  The Seller's Shares described in Schedule A
          represent all of the Shares beneficially owned (within the
          meaning of Rule 13d-3 under the Exchange Act) by DCC.

                    (l)  DCC owns, directly or indirectly, all of the
          outstanding shares of capital stock of RHAC and DHI, free
          and clear of any Liens.

                    Section 3.  Representations and Warranties of
          Parent and Acquisition.  Each of Parent and Acquisition
          represents and warrants to the Sellers as follows: 

                    (a)  Each of Parent and Acquisition is a
          corporation duly organized, validly existing and in good
          standing under the laws of the jurisdiction of its
          incorporation.

                    (b)  Each of Parent and Acquisition has all
          necessary corporate power and authority to execute and
          deliver this Agreement, to perform its obligations hereunder
          and to consummate the transactions contemplated hereby.  

                    (c)  The execution, delivery and performance of
          this Agreement and the consummation of the transactions
          contemplated hereby have been duly and validly authorized by
          the board of directors of each of Parent and Acquisition and
          no other corporate proceedings on the part of Parent or
          Acquisition are necessary to authorize this Agreement or to
          consummate the transactions so contemplated. 

                    (d)  This Agreement has been duly and validly
          executed and delivered by each of Parent and Acquisition and
          constitutes a legal, valid and binding agreement of each of
          Parent and Acquisition enforceable against each of Parent
          and Acquisition in accordance with its terms.

                    (e)  The execution, delivery and performance by
          Parent and Acquisition of this Agreement and the
          consummation of the transactions contemplated hereby do not
          and will not (i) contravene or conflict with the Certificate
          of Incorporation or By-Laws of Parent or Acquisition; (ii)
          assuming that all consents, authorizations and approvals
          contemplated by subsection (f) below have been obtained and
          all filings described therein have been made, contravene or
          conflict with or constitute a violation of any provision of
          any law, regulation, judgment, injunction, order or decree
          binding upon or applicable to Parent, Acquisition, any of
          their respective subsidiaries or any of their respective
          properties; (iii) conflict with, or result in the breach or
          termination of any provision of or constitute a default
          (with or without the giving of notice or the lapse of time
          or both) under, or give rise to any right of termination,
          cancellation, or loss of any benefit to which Parent,
          Acquisition or any of their respective subsidiaries is
          entitled under any provision of any agreement, contract,
          license or other instrument binding upon Parent,
          Acquisition, any of their respective subsidiaries or any of
          their respective properties, or allow the acceleration of
          the performance of, any obligation of Parent, Acquisition or
          any of their respective subsidiaries under any indenture,
          mortgage, deed of trust, lease, license, contract,
          instrument or other agreement to which Parent or Acquisition
          is a party or by which Parent, Acquisition, any of their
          respective subsidiaries or any of their respective assets or
          properties is subject or bound; or (iv) result in the
          creation or imposition of any Lien on any asset of Parent,
          Acquisition, or any of their respective subsidiaries except
          in the case of clauses (ii), (iii) and (iv) for any such
          contraventions, conflicts, violations, breaches,
          terminations, defaults, cancellations, losses, accelerations
          and Liens which would not individually or in the aggregate
          be reasonably expected to prevent the consummation by Parent
          or Acquisition of the transactions contemplated by this
          Agreement. 

                    (f)  The execution, delivery and performance by
          Parent and Acquisition of this Agreement and the
          consummation of the transactions contemplated hereby by
          Parent and Acquisition require no action by or in respect
          of, or filing with, any governmental body, agency, official
          or authority (either domestic or foreign) other than (i)
          compliance with any applicable requirements of the HSR Act,
          the EC Merger Regulation and the Canadian Competition Act;
          (ii) compliance with any applicable requirements of the
          Exchange Act and state securities, takeover and Blue Sky
          laws; (iii) the filing of a notice pursuant to Exon-Florio;
          and (iv) such actions or filings which, if not taken or
          made, would not individually or in the aggregate be
          reasonably expected to prevent the consummation by Parent
          and Acquisition of the transactions contemplated by this
          Agreement.

                    (g)  Except as previously disclosed by Parent and
          Acquisition to Sellers, as of the date hereof, there is no
          action, suit, claim, investigation or proceeding pending
          against, or to the knowledge of Parent and Acquisition,
          threatened against, Parent, Acquisition, any of their
          respective subsidiaries or any of their respective
          properties before any court or arbitrator or any
          administrative, regulatory or governmental body, or any
          agency or official which challenges or seeks to prevent,
          enjoin, alter or delay the Merger or any of the other
          transactions contemplated hereby or by the Merger Agreement. 
          As of the date hereof, none of Parent, Acquisition, any of
          their respective subsidiaries or any of their respective
          properties is subject to any order, writ, judgment,
          injunction, decree, determination or award which would
          prevent or delay the consummation of the transactions
          contemplated hereby.

                    Section 4.  Purchase of Seller's Shares by
          Acquisition; Dividends.  As soon as practicable following
          the satisfaction or waiver of all of the conditions set
          forth in Section 10 hereof, but, subject to the following
          sentence, in no event more than three business days
          following such satisfaction or waiver, Acquisition shall
          purchase all of each Seller's Shares, at a purchase price of
          $25.75 per Share in cash (the "Purchase Price").  The
          closing of such purchase and sale (the "Closing") of the
          Seller's Shares shall take place at such time and on such
          business day as Acquisition may designate (the "Closing
          Date") by notice to Sellers; provided, that the Closing
          shall not take place during any period beginning the day
          following the New York Stock Exchange "ex-dividend" date and
          ending on the corresponding record date with respect to a
          regular quarterly cash dividend on the Shares; provided,
          further, that, if the Closing is delayed as set forth in the
          immediately preceding proviso, then the Closing shall take
          place on the first business day following such record date. 
          The Closing shall occur at the office of Skadden, Arps,
          Slate, Meagher & Flom, 919 Third Avenue, New York, New York
          10022, or such other place as the parties may mutually
          agree.  The parties further agree that if Acquisition
          acquires the Seller's Shares on or before the New York Stock
          Exchange "ex-dividend" date in respect of any regular
          quarterly cash dividend paid in respect of the Shares, then,
          whether or not such Seller's Shares are transferred of
          record to Acquisition on or before the corresponding record
          date, the dividend payable to holders of record on such
          record date shall be for the account of Acquisition and not
          the Sellers.  The foregoing shall not limit the remedies of
          Parent and Acquisition, on the one hand, or the Sellers, on
          the other hand, in the event that the other parties hereto
          fail to effect the Closing in violation of their obligations
          hereunder.

                    Section 5.  Transfer of Shares.  At the Closing,
          and subject to the satisfaction or waiver of the conditions
          set forth in Section 10 of this Agreement, each of the
          Sellers will sell, transfer and deliver such Seller's Shares
          to Acquisition (in proper form for transfer) and Acquisition
          will purchase such Shares and wire transfer to the Sellers
          (to such accounts as the Sellers shall specify on at least
          two days notice) immediately available funds representing
          the aggregate Purchase Price for such Seller's Shares,
          without deduction or setoff of any kind, including, without
          limitation, any deduction for any stock transfer tax or
          similar governmental transfer tax.  Acquisition shall bear
          responsibility for any stock transfer tax or similar
          governmental transfer tax, arising out of the transfer of
          each Seller's Shares, but shall not have any responsibility
          whatsoever for any other taxes imposed by law on any of the
          Sellers.  At the Closing and thereafter, each Seller will,
          upon request of Acquisition, execute and deliver all
          additional documents reasonably deemed by Acquisition to be
          necessary, appropriate or desirable to effect, complete and
          evidence the sale, assignment and transfer of such Seller's
          Shares pursuant to this Agreement.

                    Section 6.  Anti-Dilution Adjustments.  In the
          event of any change in the number of Shares outstanding by
          recapitalization, declaration of a stock split or
          combination or payment of a stock dividend or the like, the
          number of Shares to be transferred to Acquisition and the
          per Share payments to be made to the Sellers shall be
          adjusted appropriately.  

                    Section 7.  Covenants.  Except as provided for
          herein, each Seller agrees not to (either directly or
          indirectly):

                    (a)  sell, transfer, pledge, assign, hypothecate
          or otherwise dispose of, or enter into any contract, option
          or other arrangement or understanding with respect to the
          sale, transfer, pledge, assignment, hypothecation or other
          disposition of such Seller's Shares (including, without
          limitation, through the disposition or transfer of control
          of another person);

                    (b)  grant any proxies with respect to such
          Seller's Shares, deposit such Seller's Shares into a voting
          trust or enter into a voting agreement with respect to any
          of such Seller's Shares; or

                    (c)  take any action which would make any
          representation or warranty of such Seller herein untrue or
          incorrect in any material respect.

                    Section 8.  No Solicitation.  (a) The Sellers will
          immediately cease any existing discussions or negotiations
          with any third parties conducted prior to the date hereof
          with respect to any Acquisition Proposal (as defined below). 
          The Sellers shall not, directly or indirectly, through any
          officer, director, employee, representative or agent or any
          of their respective subsidiaries, (i) solicit, initiate, or
          encourage any inquiries or proposals that constitute, or
          would lead to, a proposal or offer for a merger,
          consolidation, business combination, sale of substantial
          assets, sale of a substantial percentage of shares of
          capital stock (including without limitation by way of a
          tender offer) or similar transactions involving the Company
          or any of its subsidiaries, other than the transactions
          contemplated by this Agreement and the Merger Agreement (any
          of the foregoing inquiries or proposals being referred to in
          this Agreement as an "Acquisition Proposal"), (ii) engage in
          negotiations or discussions concerning, or provide any non-
          public information to any person or entity relating to, any
          Acquisition Proposal, or (iii) agree to, approve or
          recommend any Acquisition Proposal; provided, that the
          Sellers shall not be deemed to have breached their
          obligations contained in this Section 8(a) by reason of the
          Company's taking any action permitted by the proviso to
          Section 6.10(a) of the Merger Agreement.

                    (b)  The Sellers shall notify Parent immediately
          (and no later than 24 hours) after receipt by any Seller of
          any Acquisition Proposal or any request for non-public
          information in connection with an Acquisition Proposal or
          for access to the properties, books or records of the
          Company by any person or entity that informs such party that
          it is considering making, or has made, an Acquisition
          Proposal.  Such notice shall be made orally and shall
          indicate in reasonable detail the identity of the offeror
          and the terms and conditions of such proposal, inquiry or
          contract.

                    Section 9.  Voting Agreement; Proxy. 

                    (a)  For so long as this Agreement is in effect,
          Sellers shall vote, or cause to be voted, all of their
          respective Seller's Shares in favor of the approval and
          adoption of the Merger Agreement and the transactions
          contemplated thereby.

                    (b)  For so long as this Agreement is in effect,
          in any meeting of the stockholders of the Company, however
          called, and in any action by consent of the stockholders of
          the Company, Sellers shall vote or cause to be voted all of
          their respective Seller's Shares:  (i) against any action or
          agreement that would result in a breach in any material
          respect of any covenant, representation or warranty or any
          other obligation of the Company or DCC under the Merger
          Agreement or of Sellers under this Agreement; and (ii)
          against any action or agreement that would impede, interfere
          with or discourage the transactions contemplated by the
          Merger Agreement, including, without limitation: (1) any
          extraordinary corporate transaction, such as a merger,
          reorganization or liquidation involving the Company or any
          of its subsidiaries, (2) a sale or transfer of a material
          amount of assets of the Company or any of its subsidiaries
          or the issuance of securities by the Company or any of its
          subsidiaries, (3) any change in the Board (other than as
          contemplated by the Merger Agreement), (4) any change in the
          present capitalization or dividend policy of the Company
          (other than as contemplated by the Merger Agreement) or (5)
          any other material change in the Company's corporate
          structure or business.

                    (c)  Upon receipt of the Purchase Price as
          provided in Section 5 hereof, each Seller shall grant
          Acquisition an irrevocable proxy and irrevocably appoint
          Acquisition or its designees, with full power of
          substitution, its attorney and proxy to vote all such
          Seller's Shares at any meeting of the stockholders of the
          Company however called, or in connection with any action by
          written consent by the stockholders of the Company.  Each
          Seller acknowledges and agrees that such proxy, if and when
          given, will be coupled with an interest, will be irrevocable
          and shall not be terminated by operation of law or otherwise
          upon the occurrence of any event and that no subsequent
          proxies will be given (and if given will not be effective).

                    Section 10.  Conditions.  (a) The obligation of
          Acquisition to purchase the Seller's Shares hereunder shall
          be subject to the satisfaction or waiver at or prior to the
          Closing of each of the following conditions:

                         (i)  any waiting period applicable to the
          purchase and sale of the Seller's Shares pursuant to this
          Agreement under the HSR Act, the EC Merger Regulation and
          the Canadian Competition Act shall have terminated or
          expired;

                         (ii)  either (A) the Committee on Foreign
          Investment in the United States shall have determined not to
          investigate the transactions contemplated by this Agreement
          or the Merger Agreement under Exon-Florio (either by action
          or inaction) or (B) if such Committee shall have determined
          to make such an investigation, such investigation shall have
          been completed or the President shall have determined (by
          action or inaction) not to take any action under Exon-Florio
          with respect to the transactions contemplated by this
          Agreement or the Merger Agreement;

                         (iii)  no statute, rule, regulation,
          executive order, decree, ruling, injunction or other order
          shall have been enacted, entered, promulgated or enforced by
          any court or governmental or supranational authority of
          competent jurisdiction within the United States or the
          European Community (including in connection with obtaining
          termination of applicable waiting periods under the HSR Act
          and the EC Merger Regulation) which (x) prohibits or makes
          illegal the sale of any Seller's Shares pursuant to this
          Agreement or (y) with respect to antitrust or similar
          competition law matters, would have a material adverse
          effect on (A) the United States business and operations of
          the Company and its subsidiaries and the United States
          pharmaceutical business and operations of Parent and its
          affiliates, taken as a whole or (B) the European business
          and operations of the Company and its subsidiaries and the
          European pharmaceutical business and operations of Parent
          and its affiliates, taken as a whole (it being agreed that
          the meaning of "material adverse effect" for purposes of
          this clause (y) shall be consistent with discussions among
          the parties hereto and their respective counsel); 

                         (iv)  there shall not have occurred any
          governmental action (such as the declaration of a banking
          moratorium or a prohibition on the export of funds) which
          prevents Parent and Acquisition from obtaining the funds
          necessary to pay the aggregate Purchase Price hereunder (it
          being agreed that in such event Parent and Acquisition shall
          use their reasonable best efforts to obtain alternative
          sources of funds as soon as practicable, and that this
          condition is not intended to include governmental actions
          that merely make it more expensive for Parent and
          Acquisition to obtain the funds necessary to pay the
          aggregate Purchase Price hereunder);

                         (v)  the Sellers shall have performed in all
          material respects all of their covenants and agreements
          under this Agreement required to be performed at or prior to
          the Closing, and each of DCC and the Company shall have
          performed in all material respects all of its covenants and
          agreements under the Merger Agreement required to be
          performed at or prior to the Closing hereunder; provided,
          that with respect to such covenants and agreements of the
          Company, the foregoing condition shall be deemed satisfied
          so long as no failure to perform any such covenant or
          agreement shall have had or would have a Material Adverse
          Effect and that the existence of any remedy under Section
          6.11 of the Merger Agreement shall not be a condition to
          Acquisition's obligation to purchase the Sellers Shares
          hereunder;

                         (vi)  the representations and warranties of
          the Sellers set forth in this Agreement and of DCC set forth
          in the Merger Agreement and in all other agreements entered
          into in connection with the transactions contemplated hereby
          which are qualified as to materiality shall be true and
          correct and the representations and warranties of the
          Sellers set forth in this Agreement and of DCC set forth in
          the Merger Agreement and such other agreements which are not
          so qualified shall be true and correct in all material
          respects, in each case as of the date when made and (except
          in the case of any representation and warranty made as of a
          specified date) as of the date of the Closing as if such
          representations and warranties were made on such date;
          provided, that the truth or correctness of the
          representations set forth in Section 4.5 of the Merger
          Agreement shall not be a condition to Acquisition's
          obligation to purchase the Seller's Shares hereunder; and

                         (vii)  the representations and warranties of
          the Company set forth in the Merger Agreement shall be true
          and correct as of the date when made and (except in the case
          of any representation and warranty made as of a specified
          date) as of the date of the Closing as if such
          representations and warranties were made on such date;
          provided, that the foregoing condition shall be deemed
          satisfied so long as no failure to be so true and correct
          shall have had or would have a Material Adverse Effect.

                    (b)  The obligation of each Seller to sell such
          Seller's Shares hereunder shall be subject to the
          satisfaction or waiver at or prior to the Closing of each of
          the following conditions:

                         (i)  any waiting period applicable to the
          purchase and sale of the Seller's Shares pursuant to this
          Agreement under the HSR Act, the EC Merger Regulation and
          the Canadian Competition Act shall have terminated or
          expired;

                         (ii)  either (A) the Committee on Foreign
          Investment in the United States shall have determined not to
          investigate the transactions contemplated by this Agreement
          or the Merger Agreement under Exon-Florio (either by action
          or inaction) or (B) if such Committee shall have determined
          to make such an investigation, such investigation shall have
          been completed or the President shall have determined (by
          action or inaction) not to take any action under Exon-Florio
          with respect to the transactions contemplated by this
          Agreement or the Merger Agreement;

                         (iii)  no statute, rule, regulation,
          executive order, decree, ruling, injunction or other order
          shall have been enacted, entered, promulgated or enforced by
          any court or governmental or supranational authority of
          competent jurisdiction within the United States or the
          European Community which prohibits or makes illegal the sale
          of any Seller's Shares pursuant to this Agreement;

                         (iv)  Parent and Acquisition shall have
          performed in all material respects all of their covenants
          and agreements under this Agreement and under the Merger
          Agreement required to be performed at or prior to the
          Closing; provided, that the foregoing condition shall be
          deemed satisfied so long as Acquisition is ready and able to
          purchase each Seller's Shares pursuant to this Agreement;

                         (v)  the representations and warranties of
          Parent and Acquisition set forth in this Agreement and in
          the Merger Agreement which are qualified as to materiality
          shall be true and correct and which are not so qualified
          shall be true and correct in all material respects, in each
          case as of the date when made and (except in the case of any
          representation and warranty made as of a specified date) as
          of the date of the Closing as if such representations and
          warranties were made on such date; provided, that the
          foregoing condition shall be deemed satisfied so long as
          Acquisition is ready and able to purchase each Seller's
          Shares pursuant to this Agreement; and 

                         (vi) the Company shall have performed its
          obligations under Section 6.14 of the Merger Agreement
          required to be performed effective as of the Closing;
          provided, that if such obligations have not been so
          performed, Parent agrees to cause such performance within
          two business days following the Closing and the foregoing
          condition shall be deemed satisfied. 

                    Section 11.  Public Announcements.  Parent and
          Acquisition, on the one hand, and DCC on behalf of the
          Sellers, on the other hand, will consult with each other
          before issuing any press release with respect to the
          transactions contemplated by this Agreement and the Merger
          Agreement, and shall not issue any such press release prior
          to such consultation, except as may be required by
          applicable law or by applicable rules of any securities
          exchange.

                    Section 12.  Specific Performance.  The parties
          hereto agree that irreparable damage would occur in the
          event any provision of this Agreement was not performed in
          accordance with the terms hereof and that the parties shall
          be entitled to specific performance of the terms hereof, in
          addition to any other remedy at law or in equity.

                    Section 13.  Indemnification.  The Sellers, on the
          one hand, and Parent and Acquisition, on the other hand, in
          connection with the transactions contemplated herein, shall
          indemnify and hold the other harmless from and against any
          and all losses, damages, claims, liabilities or obligations
          with respect to (i) any breach of any representation,
          warranty or agreement of the other party contained in this
          Agreement and (ii) any brokerage fees, commissions or
          finders' fees payable on the basis of any action taken by
          the other party or any of its affiliates.

                    Section 14.  Expenses.  Each party shall bear its
          own expenses and costs in connection with this Agreement and
          the transactions contemplated hereby.  

                    Section 15.  Nonsurvival of Representations and
          Warranties; Agreements Joint and Several.  None of the
          representations and warranties made by the Sellers, Parent
          or Acquisition in this Agreement shall survive the Closing
          hereunder; provided, that the representations and warranties
          contained in Section 2(h) and Section 2(j) shall survive
          indefinitely following the Closing.  The covenants and
          agreements made herein shall survive in accordance with
          their respective terms.  Notwithstanding anything contained
          herein to the contrary, the representations, warranties and
          agreements made in this Agreement by the Sellers, on the one
          hand, and Parent and Acquisition, on the other hand, shall
          be joint and several.

                    Section 16.  Amendment; Assignment.  This
          Agreement may not be modified, amended, altered or
          supplemented except upon the execution and delivery of a
          written agreement executed by the parties hereto.  No party
          to this Agreement may assign any of its rights or
          obligations under this Agreement without the prior written
          consent of the other parties except that the rights and
          obligations of Acquisition may be assigned by Acquisition to
          Parent or any of Parent's other wholly owned subsidiaries
          (provided such transferee agrees in writing to be bound
          under this Agreement), but no such transfer shall relieve
          Acquisition of its obligations hereunder if such transferee
          does not perform such obligations.

                    Section 17.  Parties in Interest.  This Agreement
          shall be binding upon and inure solely to the benefit of
          each party hereto and its successors and permitted assigns,
          and nothing in this Agreement, express or implied, is
          intended to or shall confer upon any other person any
          rights, benefits or remedies of any nature whatsoever. 

                    Section 18.  Notices.  All notices, requests,
          claims, demands and other communications hereunder shall be
          in writing and shall be given (and shall be deemed to have
          been duly given upon receipt) by delivery in person, by
          facsimile or by registered or certified mail (postage
          prepaid, return receipt requested), to the other party as
          follows: 

                    (a)  If to Parent or Acquisition, to:

                         Hoechst Corporation
                         Route 202-206
                         P.O. Box 2500
                         Somerville, New Jersey  08876-1258
                         Fax:  908-231-4848
                         Attention: Harry R. Benz


                         with copies to:

                         Hoechst AG
                         65926 Frankfurt am Main
                         Germany
                         Fax: 011-49-69-319-113
                         Attention: Peter Schuster

                         and

                         Skadden, Arps, Slate, Meagher & Flom
                         919 Third Avenue
                         New York, New York  10022
                         Fax:  212-735-2000
                         Attention:     Roger S. Aaron
                                             and
                                        Franklin M. Gittes

                    (b)  If to the Sellers, to:

                         The Dow Chemical Company
                         2030 Dow Center
                         Midland, Michigan  48674
                         Fax:  517-636-0861
                         Attention: Jane M. Gootee

                         with a copy to:

                         Mayer, Brown & Platt
                         190 South LaSalle Street
                         Chicago, Illinois  60603-3441
                         Fax:  312-701-7711
                         Attention:  Scott J. Davis

          or to such other address as the person to whom notice is
          given may have previously furnished to the other in writing
          in the manner set forth above.

                    Section 19.  Reasonable Best Efforts.  Subject to
          the terms and conditions herein provided, each of the
          parties hereto agrees to use its reasonable best efforts to
          take, or cause to be taken, all actions, and to do, or cause
          to be done, all things reasonably necessary, proper or
          advisable under applicable laws and regulations to
          consummate and make effective the transactions contemplated
          by this Agreement.  Without limiting the generality of the
          foregoing, the parties hereto shall cooperate with one
          another (i) in determining whether action by or in respect
          of, or filing with, any governmental body, agency, official
          or authority (either domestic or foreign) is required,
          proper or advisable or any actions, consents, waivers or
          approvals are required to be obtained from parties to any
          contracts, in connection with the transactions contemplated
          by this Agreement and (ii) in seeking timely to obtain any
          such actions, consents, waivers or to make any such filings. 
          In addition, Parent and Acquisition shall use their
          reasonable best efforts to take such action as may be
          required by any governmental or supranational authority of
          competent jurisdiction within the United States or the
          European Community in order to resolve any objections such
          authority may have to the transactions contemplated hereby
          under applicable antitrust laws; provided, that the
          foregoing shall not obligate Parent or Acquisition to take
          any action which would have a material adverse effect on (A)
          the United States business and operations of the Company and
          its subsidiaries and the United States pharmaceutical
          business and operations of Parent and its affiliates, taken
          as a whole or (B) the European business and operations of
          the Company and its subsidiaries and the European
          pharmaceutical business and operations of Parent and its
          affiliates, taken as a whole (it being agreed that the
          meaning of "material adverse effect" for purposes of this
          proviso shall be consistent with discussions among the
          parties and their respective counsel).  In case at any time
          after the Closing any further action is necessary or
          desirable to carry out the purposes of this Agreement, the
          proper officers and directors of each party hereto shall
          take all such necessary action.

                    Section 20.  Governing Law.  This Agreement shall
          be governed by and construed in accordance with the law of
          the State of Delaware, without regard to the principles of
          conflicts of law thereof.

                    Section 21.  Termination.  This Agreement may be
          terminated at any time by mutual written consent of the
          parties hereto.  Upon the termination of the Merger
          Agreement in accordance with its terms, this Agreement shall
          forthwith terminate without any action by any of the parties
          hereto.  No such termination shall relieve any party from
          liability for any breach of this Agreement.

                    Section 22.  Severability.  The provisions of this
          Agreement shall be deemed severable and the invalidity or
          unenforceability of any provision shall not affect the
          validity and enforceability of the other provisions hereof. 
          If any provision of this Agreement, or the application
          thereof to any person or entity or any circumstance, is
          invalid or unenforceable, (a) a suitable and equitable
          provision shall be substituted therefor in order to carry
          out, so far as may be valid and enforceable, the intent and
          purpose of such invalid and unenforceable provision and (b)
          the remainder of this Agreement and the application of such
          provision to other persons, entities or circumstances shall
          not be affected by such invalidity or unenforceability, nor
          shall such invalidity or unenforceability affect the
          validity or enforceability of such provision, or the
          application thereof, in any other jurisdiction.

                    Section 23.  Entire Agreement.  This Agreement
          constitutes the entire agreement among the parties hereto
          with respect to the subject matter hereof and supersedes all
          other prior agreements and understandings, both written and
          oral, among the parties with respect to the subject matter
          hereof.

                    Section 24.  Descriptive Headings.  The
          descriptive headings herein are inserted for convenience of
          reference only and are not intended to be part of or to
          affect the meaning or interpretation of this Agreement.

                    Section 25.  Consent to Jurisdiction.  Each of the
          parties hereto hereby irrevocably and unconditionally
          consents to submit to jurisdiction of the courts of the
          State of Delaware and of the United States of America
          located in the State of Delaware (the "Delaware Courts") for
          any litigation arising out of or relating to this Agreement
          and the transactions contemplated hereby (and agrees not to
          commence any litigation relating thereto except in such
          Delaware Courts), waives any objection to the laying of
          venue of any such litigation in the Delaware Courts and
          agrees not to plead or claim in any Delaware Court that such
          litigation brought therein has been brought in an
          inconvenient forum.

                    Section 26.  Certain Definitions.  For purposes of
          this Agreement, the term:

                    (a)  "affiliate" of a person means a person that
          directly or indirectly, through one or more intermediaries,
          controls, is controlled by, or is under common control with,
          the first mentioned person;

                    (b)  "control" (including the terms "controlled
          by" and "under common control with") means the possession,
          directly or indirectly or as trustee or executor, of the
          power to direct or cause the direction of the management
          policies of a person, whether through the ownership of
          stock, as trustee or executor, by contract or credit
          arrangement or otherwise;

                    (c)  "person" means an individual, corporation,
          partnership, association, trust, unincorporated
          organization, other entity or group (as defined in Section
          13(d)(3) of the Exchange Act); and

                    (d)  "subsidiary" or "subsidiaries" of any person
          means any corporation, partnership, joint venture or other
          legal entity of which such person (either alone or through
          or together with any other subsidiary), owns, directly or
          indirectly, 50% or more of the stock or other equity
          interests the holder of which is generally entitled to vote
          for the election of the board of directors or other
          governing body of such corporation, partnership, joint
          venture or other legal entity; provided, that the Company
          and its subsidiaries shall not be deemed subsidiaries of any
          of the Sellers for purposes of this Agreement.

                    Section 27.  Counterparts.  This Agreement may be
          executed in two or more counterparts, each of which shall be
          deemed to be an original, but all of which shall constitute
          one and the same agreement.

                    IN WITNESS WHEREOF, each of the parties has caused
          this Agreement to be executed on its behalf by its
          representatives thereunto duly authorized, all as of the day
          and year first above written.

                                   HOECHST CORPORATION

                                   By:  /s/ Harry R. Benz             
                                        Name:  Harry R. Benz
                                        Title: Secretary and Treasurer

                                   H PHARMA ACQUISITION CORP.

                                   By:  /s/ Klaus Schmieder          
                                        Name:  Klaus Schmieder
                                        Title: Vice President and
                                               Treasurer

                                   THE DOW CHEMICAL COMPANY

                                   By:  /s/ Enrique C. Falla         
                                        Name:  Enrique C. Falla
                                        Title: Executive Vice 
                                               President and Chief
                                               Financial Officer

                                   RH ACQUISITION CORP.

                                   By:  /s/ John C. Lillich         
                                        Name:  John C. Lillich
                                        Title: President

                                   DOW HOLDINGS INC.

                                   By:  /s/ Enrique C. Falla         
                                        Name:  Enrique C. Falla
                                        Title: President


                                   SCHEDULE A 
                                     TO THE
                            STOCK PURCHASE AGREEMENT

                    Capitalized terms used in this Schedule A and not
          otherwise defined in this Schedule A have the respective
          meanings assigned to such terms in the attached Stock
          Purchase Agreement.

          Name of each Seller                     Number of Shares

          The Dow Chemical Company                65,931,690 Shares

          RH Acquisition Corp.                    55,934,100 Shares

          Dow Holdings Inc.                       75,000,000 Shares
          ========================                ==================
          Total                                   196,865,790 Shares





                                                             EXHIBIT 3



                               PURCHASE AGREEMENT

                    THIS PURCHASE AGREEMENT, dated as of May 3, 1995,
          is among Latin American Pharmaceutical Inc., a Delaware
          corporation ("LAPI") and a wholly owned subsidiary of The
          Dow Chemical Company, a Delaware corporation ("TDCC"), Dow
          Quimica Argentina S.A., a corporation organized under the
          laws of Argentina and an indirect wholly owned subsidiary of
          TDCC ("Dow Argentina"), Dow Quimica Mexicana S.A., a
          corporation organized under the laws of Mexico and an
          indirect wholly owned subsidiary of TDCC ("Dow Mexico"), Dow
          Productos Quimicos LTDA, a limited company organized under
          the laws of Brazil and an indirect wholly owned subsidiary
          of TDCC ("Dow Productos"), Mineracao e Quimica de Nordeste,
          a corporation organized under the laws of Brazil and an
          indirect wholly owned subsidiary of TDCC ("Dow Mineracao"),
          Dow Quimica S.A., a corporation organized under the laws of
          Brazil and an indirect wholly owned subsidiary of TDCC ("Dow
          Brazil" and, collectively with LAPI, Dow Argentina, Dow
          Productos and Dow Mineracao, "Sellers"), Merrell Lepetit
          Farmaceutica Industrial LTDA, a limited company organized
          under the laws of Brazil and an indirect wholly owned
          subsidiary of TDCC ("Lepetit Brazil"), Laboratorios Lepetit
          de Mexico S.A. de C.V., a corporation organized under the
          laws of Mexico and an indirect wholly owned subsidiary of
          TDCC ("Lepetit Mexico" and, collectively with Lepetit
          Brazil, the "Transferred Subsidiaries"), and Roussel Uclaf
          S.A., a French societe anonyme ("Purchaser").  

                    WHEREAS, Sellers directly, or indirectly through
          their affiliates, develop, register, formulate, manufacture,
          distribute, market and sell prescription and nonprescription
          drugs and certain over-the-counter products, including
          personal care and personal hygiene products, in Argentina,
          Brazil, Mexico and elsewhere in Latin America (the
          "Business"); and

                    WHEREAS, upon the terms and subject to the
          conditions contained in this Agreement, Sellers desire to
          sell and to cause their affiliates to sell to Purchaser or
          its designated affiliate or affiliates, and Purchaser
          desires that it or its designated affiliate or affiliates
          purchase, the Business.

                    NOW, THEREFORE, in consideration of and in
          reliance upon the terms, covenants, and conditions contained
          in this Agreement and other good and valuable consideration,
          the receipt and sufficiency of which are hereby
          acknowledged, the parties hereto agree as follows.

                                    ARTICLE I

                          TRANSFER OF DESIGNATED ASSETS

                    Section 1.1  Transfer of Designated Assets.  Upon
          the terms and subject to the conditions contained in this
          Agreement, at the Closing provided for in Section 3.1,
          Sellers shall, or shall cause their affiliates to, sell,
          transfer, convey, assign and deliver the Designated Assets
          (as defined in Section 1.2) to Purchaser or one or more
          affiliates of Purchaser designated by Purchaser (it being
          understood and agreed that the Designated Assets of the
          Transferred Subsidiaries will not be transferred directly
          but indirectly through the transfer to Purchaser or one or
          more affiliates of Purchaser designated by Purchaser of all
          of the outstanding shares of capital stock of the
          Transferred Subsidiaries).
            
                    Section 1.2  Designated Assets.  As used in this
          Agreement, the term "Designated Assets" means all of the
          rights, properties, assets, claims, contracts, licenses,
          permits, causes of action, operations and businesses of
          every kind, character and description, whether tangible or
          intangible, and wherever located, of Sellers or any of their
          affiliates, which are used primarily in connection with, or
          are held for use primarily in, are necessary for the conduct
          of, or are otherwise primarily related to the Business,
          including, but not limited to: (i) all machinery and
          equipment, racks, movable walls, tools, dyes, furniture,
          furnishings, plant and office equipment, leasehold
          improvements and automobiles and other vehicles; (ii) all
          inventories, including supplies, raw materials, work-in-
          process, finished goods and goods-in-transit from suppliers
          or manufacturers used or intended for use, or held for sale;
          (iii) all accounts and notes receivable and cash and cash
          equivalents; (iv) all prepaid rent, prepaid property taxes,
          prepaid supplies, advances and other prepaid expenses and
          deposits; (v) all rights in and under product registrations,
          leases, licenses, contracts, purchase and sale orders,
          commitments, arrangements, understandings, quotations and
          other agreements; (vi) all operating data and records,
          including books, sales and sales promotional data,
          advertising materials, customer lists, financial records,
          tax records, credit information, cost and pricing
          information, supplier lists, registration files, business
          plans, development and production data and information,
          reference catalogs, computer programs and electronic data
          processing software; (vii) all engineering and production
          designs, drawings and other similar data; and (viii) all
          Intellectual Property (as defined in Section 4.12); except
          for the assets listed on Schedule 1.2 (the "Excluded
          Assets").  It is understood and agreed that the inadvertent
          failure to include a particular asset on Schedule 1.2 shall
          not create a presumption that such asset is not an Excluded
          Asset.

                                   ARTICLE II

                  DESIGNATED LIABILITIES; EXCLUDED LIABILITIES

                    Section 2.1  Assumption of Designated Liabilities. 
          Upon the terms and subject to the conditions contained in
          this Agreement, at the Closing provided for in Section 3.1,
          Purchaser shall, or shall cause its affiliates purchasing
          Designated Assets to, assume the Designated Liabilities (as
          defined in Section 2.2)(it being understood and agreed that
          the Designated Liabilities of the Transferred Subsidiaries
          shall be retained by the Transferred Subsidiaries).  

                    Section 2.2  Designated Liabilities.  As used in
          this Agreement, the term "Designated Liabilities" means: 
          all liabilities arising out of the conduct of the Business
          or the ownership of the Designated Assets, including (a) all


          liabilities reflected in the Financial Statements (as
          defined in Section 4.7) to the extent not satisfied as of
          the Closing and (b) all liabilities (including liabilities
          under contracts) to the extent arising out of the conduct of
          the Business after the Closing; except, in all cases, for
          the Excluded Liabilities (as defined in Section 2.3).  

                    Section 2.3  Excluded Liabilities.  Neither
          Purchaser nor any of its affiliates, nor any of the
          Transferred Subsidiaries nor any of their respective
          subsidiaries, if any, shall, or shall be required pursuant
          to this Agreement to, assume or retain or have any liability
          or obligation of any nature, direct or indirect, absolute,
          accrued, contingent or otherwise, for the following excluded
          liabilities (the "Excluded Liabilities"):  (i) all
          liabilities of TDCC or any of its affiliates related to or
          associated with (A) the businesses of TDCC and its
          affiliates (other than the Business and liabilities of the
          Business, if any, relating to the products referred to in
          Sections 6 and 8 of the Insurance Separation Agreement,
          dated as of May 3, 1995, among TDCC, Hoechst Corporation
          ("Hoechst"), Marion Merrell Dow Inc. ("MMD"), Dorinco
          Reinsurance Company, Dorintal Reinsurance Ltd. and Timber
          Insurance Ltd. (the "Insurance Agreement)) (B) the Excluded
          Assets and (C) employees who are not identified on Schedules
          4.16 or 6.15; (ii) all liabilities arising in connection
          with all actions, suits, claims, investigations and
          proceedings pending, threatened or otherwise known on the
          Closing Date; (iii) pre-Closing environmental liabilities
          related to the Business; and (iv) all liabilities arising as
          a result of the Restructuring (as defined in Section 3.2). 
          After the Closing, all Excluded Liabilities shall be
          retained by and remain liabilities of TDCC and its
          affiliates (other than the Transferred Subsidiaries) or,
          with respect to the Excluded Liabilities of the Transferred
          Subsidiaries, shall be assumed by TDCC or one or more of its
          affiliates (other than the Transferred Subsidiaries).

                                   ARTICLE III

                                     CLOSING

                    Section 3.1  Closing.  The closing of the
          transactions contemplated by this Agreement (the "Closing")
          shall take place at the offices of Skadden, Arps, Slate,
          Meagher & Flom, 919 Third Avenue, New York, New York 10022
          at 10:00 a.m., local time, on the sixth business day
          following the satisfaction or waiver of the conditions
          contained in Articles VII and VIII of this Agreement (unless
          waived by the appropriate party), or such other date as
          shall be agreed upon by the parties, but in no event later
          than January 31, 1996 (the "Closing Date").  To the extent
          any party hereto may reasonably request, local closings in
          the countries where the Designated Assets are located shall
          be held simultaneously with and as part of the Closing.  In
          the event that the portion of the Purchase Price (as defined
          in Section 3.4) payable at any such local closing is
          required by applicable law to be paid in local currency, the
          amount of local currency to be paid shall be determined by
          reference to a mutually agreeable official exchange rate.


                    Section 3.2  Restructuring.  

                         (a)  On or prior to the Closing, Sellers
          shall, and shall cause their affiliates to, effect the
          following transactions (collectively, the "Restructuring"):
          (i) Dow Brazil shall sell, transfer, convey, assign and
          deliver all of the Shares of Lepetit Brazil owned by it to
          Dow Productos; (ii) Dow Productos and Dow Mineracao will
          create a new corporation or limited company ("Brazil Newco")
          which will be owned by them in proportion to their
          respective ownership of the Shares of Lepetit Brazil and
          will cause Lepetit Brazil to transfer all of its rights,
          properties, assets, claims, contracts, licenses, permits,
          causes of action, operations and businesses of every kind,
          character and description, whether tangible or intangible,
          and wherever located which are not Designated Assets, and
          specifically including its real properties, including land,
          buildings, structures and fixtures, (together with all
          easements, rights and privileges appertaining thereto) to
          Brazil Newco; (iii) Dow Productos and Dow Mineracao shall
          cause Brazil Newco to assume from Lepetit Brazil its
          Excluded Liabilities; (iv) Lepetit Mexico will sell,
          transfer, convey, assign and deliver its real properties,
          including land, buildings, structures and fixtures,
          (together with all easements, rights and privileges
          appertaining thereto) to Dow Mexico and the proceeds of such
          sale (net of any applicable Taxes) shall be transferred or
          paid, by dividend or otherwise, by Lepetit Mexico to LAPI;
          (v) LAPI shall assume from Lepetit Mexico its Excluded
          Liabilities; and (vi) Lepetit International Inc. ("Dow
          Panama") will sell, transfer, convey, assign and deliver
          (for inclusion in the Designated Assets) all of its
          trademarks associated with the Business to LAPI.  As used
          herein, "Shares" means all of the issued and outstanding
          shares of capital stock of Lepetit Mexico and all of the
          outstanding equity interests in Lepetit Brazil.

                         (b)  Sellers shall retain appropriate local
          counsel (who may be employees of Sellers) and other experts
          (as necessary) to assist in the preparation of documentation
          for, and the execution of, the Restructuring.  Sellers shall
          provide a detailed written plan specifically identifying all
          transactions to be completed in connection with the
          Restructuring (the "Restructuring Plan") and shall provide
          Purchaser an opportunity to comment on and consult with
          Sellers concerning the Restructuring Plan prior to any
          implementation thereof.  In addition, Sellers shall give due
          consideration to any objections raised by Purchaser with
          respect to the Restructuring Plan (and notice and
          opportunity to confer on deviations therefrom) and use
          reasonable efforts to make appropriate modifications to the
          Restructuring Plan in response to any such objections.  The
          deeds, bills of sale, instruments of assignment and
          assumption and other documents necessary to effect the
          Restructuring (which shall be delivered to Purchaser in
          sufficient time for review and comment in advance of their
          execution) shall be reasonably satisfactory in form and
          substance to Purchaser, and the Restructuring shall be
          completed in accordance with the Restructuring Plan (as
          modified in response to Purchaser's objections, if any) with
          no material deviations therefrom that, individually or in
          the aggregate, are or may be detrimental to the Business.  

                    Section 3.3  Deliveries at the Closing.

                         (a)  At the Closing, immediately following
          the Restructuring contemplated by Section 3.2, Sellers
          shall, or shall cause their affiliates to, deliver or cause
          to be delivered to Purchaser the following:  (i) a notarial
          deed or deeds, in form and substance reasonably satisfactory
          to Purchaser, as may be necessary to transfer the Shares to
          Purchaser or affiliates of Purchaser designated by
          Purchaser, duly executed by Dow Productos and Dow Mineracao
          or LAPI, as appropriate; (ii) the share registers of the
          Transferred Subsidiaries (which may be delivered locally);
          (iii) the minute books and, if any, the corporate seals of
          the Transferred Subsidiaries (which may be delivered
          locally); (iv) such resignations of the officers and
          directors of the Transferred Subsidiaries from such
          positions as Purchaser shall request; (v) such other deeds,
          bills of sale, instruments of assignment and other
          documents, in form and substance reasonably satisfactory to
          Purchaser, as may be necessary to transfer good and
          marketable title to the Designated Assets (other than the
          Designated Assets transferred indirectly to Purchaser
          through the transfer of the Shares) to Purchaser or
          affiliates of Purchaser designated by Purchaser; (vi) such
          instruments of assumption and other documents, in form and
          substance reasonably satisfactory to Purchaser, as may be
          necessary to effect the assumption by Brazil Newco and LAPI
          of all Excluded Liabilities of the Transferred Subsidiaries;
          and (vii) the certificates referred to in Section 8.7.

                         (b)  At the Closing, concurrently with the
          deliveries contemplated by Section 3.3, Purchaser will
          deliver or cause to be delivered to Sellers:  (i) such
          instruments of assumption and other documents, in form and
          substance reasonably satisfactory to Sellers, as may be
          necessary to effect the assumption by Purchaser or
          affiliates of Purchaser designated by Purchaser of the
          Designated Liabilities (other than the Designated
          Liabilities of the Transferred Subsidiaries); (ii) the
          Purchase Price (as defined in Section 3.4); and (iii) the
          certificates referred to in Section 7.5.

                    Section 3.4  Purchase Price; Payment at Closing;
          Purchase Price Adjustment.  

                         (a)  As consideration for the purchase of the
          Business, at the Closing, Purchaser shall pay to Sellers the
          aggregate amount of One Hundred Forty Million Dollars
          ($140,000,000), such amount to be adjusted pursuant to
          Section 3.4(b)(iv) below (the amount so adjusted being, the
          "Purchase Price").  It is understood and agreed that the
          amount paid at Closing shall be allocated as follows:  $50
          Million in respect of Lepetit Brazil, $20 Million in respect
          of the Designated Assets sold by Dow Argentina (the
          "Argentine Assets"), $20 Million in respect of Lepetit
          Mexico and $50 Million in respect of the other Designated
          Assets to be sold by LAPI (the "Other LAPI Assets"), such
          amounts so allocated to be adjusted pursuant to Section
          3.4(b)(v) below.  The Purchase Price shall be payable in
          immediately available funds, which shall be delivered to
          Sellers at the Closing in the form of a wire transfer to an
          account or accounts designated by Sellers; provided, that
          Purchaser shall have received from Sellers written notice of
          the accounts so designated at least two business days prior
          to the Closing.  As used in this Agreement, "Dollars" or
          numbers preceded by the symbol "$" means amounts in United
          States Dollars.

                         (b)  Sellers and Purchaser intend that the
          book value of the Designated Assets at Closing (determined
          on a consolidated basis) shall exceed the book value of the
          Designated Liabilities at Closing (determined on a
          consolidated basis) by $45 million (all as calculated in
          accordance with U.S. GAAP (as defined in Section 4.7) the
          "Closing Net Assets").  Without limiting the obligations of
          Sellers or the Transferred Subsidiaries under any other
          provision of this Agreement, Sellers shall endeavor to cause
          such excess to be $45 million at Closing and shall consult
          with Purchaser from time to time prior to the Closing
          regarding the manner in which Sellers expect to cause such
          excess to be $45 million; provided, that neither Sellers nor
          any of their affiliates shall revalue (except as required by
          Local GAAP (as defined in Section 4.7)) assets for purposes
          of performing their obligations under this Section 3.4(b);
          and provided, further, that subject to the accuracy of
          Sellers' representations and warranties in Section 4.19
          hereof, Purchaser's sole remedy in the event that such
          excess is not equal to $45 million shall be the Purchase
          Price Adjustment contemplated by Section 3.4(b)(iv).  

                         (i) Within twenty-one days after the Closing,
          Sellers shall close the accounts of the Business and prepare
          financial statements of the Business as at the Closing Date,
          including unaudited balance sheets and unaudited income
          statements for each of the Business (which shall be
          consolidated financial statements) and the Business as
          conducted in each of Argentina, Mexico and Brazil, with such
          statements being prepared in accordance with U.S. GAAP as
          well as, with respect to statements pertaining to the
          Business as conducted in each of Argentina, Mexico and
          Brazil, each in accordance with Local GAAP, in all cases
          prepared on a basis consistent with past practice (it being
          understood that Purchaser will provide Sellers with access
          to the appropriate books and records in order to perform
          such function in accordance with paragraph (iii) below). 
          Purchaser shall retain at its own expense a "Big Six"
          accounting firm ("CPA Firm") to audit the consolidated
          balance sheet and the consolidated income statement of the
          Business as at the Closing Date (the "Closing Balance
          Sheet") and a statement (the "Closing Statement") which
          shall set forth the book value of the Designated Assets and
          the book value of the Designated Liabilities as of the
          Closing Date based on the Closing Balance Sheet and the
          amount by which the book value of the Designated Assets
          exceeds the book value of the Designated Liabilities as of
          the Closing Date (such amount, the "Book Value of the
          Business").  The Closing Balance Sheet and Closing Statement
          together with an audit report thereon (which shall detail
          all audit adjustments, if any, thereto) shall be delivered
          to Sellers within thirty (30) days of the receipt of the
          unaudited balance sheets and income statements and shall be
          prepared in accordance with U.S. GAAP.

                         (ii)  Within ten (10) days of their receipt
          of the Closing Balance Sheet and Closing Statement together
          with such work papers and supporting information as are
          reasonably requested by Sellers (the "Objection Period"),
          Sellers shall provide Purchaser with a written statement of
          any objections or disagreements, including the reasons
          therefor, with respect to the Closing Balance Sheet and
          Closing Statement ("Sellers' Objection Statement").  If
          Sellers do not provide Purchaser with a Sellers' Objection
          Statement within the Objection Period, Sellers shall be
          deemed to have accepted and agreed to the Closing Balance
          Sheet and Closing Statement.  In the event Sellers provide
          Purchaser with a Sellers' Objection Statement within the
          Objection Period, Purchaser and Sellers shall have ten (10)
          days (the "Resolution Period") following the receipt by
          Purchaser of a Sellers' Objection Statement to resolve any
          disagreements with respect to the Closing Balance Sheet and
          Closing Statement.  If Purchaser and Sellers are unable to
          resolve their disagreements with respect to the
          determination of the Closing Balance Sheet and Closing
          Statement, they shall, promptly following the Resolution
          Period, refer their differences to another internationally
          recognized firm of independent public accountants (the
          "Second CPA Firm") who shall be chosen by mutual agreement
          of Sellers and Purchaser.  The Second CPA Firm shall, acting
          as experts and not as arbitrators, determine on the basis of
          U.S. GAAP, the differences so submitted, including, if
          applicable, the Book Value of the Business as of the Closing
          Date.  The Second CPA Firm shall deliver its written
          determination to Purchaser and Sellers no later than the
          tenth day after such differences are referred to the Second
          CPA Firm (unless Purchaser and Sellers agree, upon request
          of the Second CPA Firm, to provide the Second CPA Firm with
          additional time to make its determination).  The Second CPA
          Firm's determination shall be conclusive and binding upon
          Purchaser and Sellers.  The fees and disbursements of the
          Second CPA Firm shall be shared equally by Purchaser, on the
          one hand, and Sellers, on the other hand.  The "Final
          Closing Balance Sheet" and "Final Closing Statement" shall
          mean (i) the Closing Balance Sheet and Closing Statement, in
          the event that Sellers and Purchaser resolve all disputes
          during the Resolution Period or Purchaser does not receive
          the Sellers' Objection Statement within the Objection
          Period, or (ii) the Closing Balance Sheet and Closing
          Statement, as adjusted by the Second CPA Firm.

                         (iii)  Purchaser and Sellers each shall
          provide each other, the CPA Firm and the Second CPA Firm
          full access to the books and records, any other information,
          including work papers of its accountants, and to any
          employees to the extent necessary for the preparation of the
          Closing Balance sheet and Closing Statement and the Final
          Closing Balance Sheet and Final Closing Statement.

                         (iv)  If the Book Value of the Business, as
          reflected on the Final Closing Statement, is (i) less than
          $45 million (such shortfall amount being defined as the
          "Sellers' Adjustment Amount"), Sellers shall make an
          adjustment payment to Purchaser in an amount equal to the
          Sellers' Adjustment Amount within five business days
          following the issuance of the Final Closing Statement by
          wire transfer of immediately available United States funds
          to a bank account designated by Purchaser or (ii) greater
          than $45 million (such excess being defined as the
          "Purchaser's Adjustment Amount"), Purchaser shall make an
          adjustment payment to Sellers in an amount equal to the
          Purchaser's Adjustment Amount within five business days
          following the Issuance of the Final Closing Statement by
          wire transfer of immediately available United States funds
          to a bank account designated by Sellers; provided, however,
          that in no event shall the Purchaser's Adjustment Amount
          payable pursuant to this section exceed $10 million.  If
          payments due under this subsection are not made within the
          prescribed time periods, such unpaid amounts will bear
          interest at 10% per annum until the date of payment.  Soft
          loans arrangements up to the total amount of the trade
          accounts receivable of the Business ("Trade A/R") may be
          used to reduce the Closing Net Assets to $45 million.  Any
          such soft loans shall be repaid as the Trade A/R are
          collected and Purchaser shall have no liability for the
          repayment thereof in respect of Trade A/R backing up such
          soft loans that are not collected.  Purchaser shall assist
          Sellers in their efforts to collect such Trade A/R.

                         (v)  The allocation of the Purchase Price set
          forth in Section 3.4(a) will be adjusted to reflect the
          Seller's Adjustment Amount or the Purchaser's Adjustment
          Amount, as the case may be, (A) to the extent such
          adjustment can be attributed to specific Designated Assets,
          by increasing or decreasing, as the case may be, the amount
          of Purchase Price allocated to such Designated Assets or (B)
          to the extent such adjustment cannot be so attributed, by
          increasing or decreasing, as the case may be, the amount of
          Purchase Price allocated to each of Lepetit Brazil, the
          Argentine Assets, Lepetit Mexico and the Other LAPI Assets
          by 25% of the total amount of such adjustment.

                    Section 3.5  Further Assurances.  

                         (a)  From time to time after the Closing,
          Sellers shall, or shall cause their affiliates to, at the
          request of Purchaser and without further cost or expense to
          Purchaser, execute and deliver such additional instruments
          and documents of conveyance, transfer, assignment and
          assumption and take such other actions as Purchaser may
          reasonably request, in order to convey, transfer and assign
          the Designated Assets and the Shares to Purchaser or
          affiliates of Purchaser designated by Purchaser and to
          assume the Excluded Liabilities, all as contemplated by this
          Agreement.

                         (b)  From time to time after the Closing,
          Purchaser shall or shall cause its affiliates to, at the
          request of Sellers and without further cost or expense to
          Sellers, execute and deliver such additional instruments and
          documents of conveyance, transfer, assignment and assumption
          and take such other actions as Sellers may reasonably
          request, in order to convey, transfer and assign the
          Excluded Assets to Sellers or affiliates of Sellers
          designated by Sellers and to assume the Designated
          Liabilities, all as contemplated by this Agreement.


                                   ARTICLE IV

                         REPRESENTATIONS AND WARRANTIES
                                   OF SELLERS

                    Sellers represent and warrant to Purchaser (i)
          severally as to matters which can be attributed to a
          particular Seller based on the geographic area in which it
          operates, (ii) jointly and severally as to matters which
          cannot be attributed to a particular Seller based on the
          geographic area in which it operates and (iii) jointly and
          severally as to matters relating to the Business as a whole,
          as follows:

                    Section 4.1  Corporate Organization, Etc.

                         (a)  Each Seller and each Transferred
          Subsidiary is a corporation or a limited company duly
          organized, validly existing and in good standing under the
          laws of the jurisdiction of its incorporation or
          organization and has all requisite power and authority to
          own, lease and operate its properties and to carry on its
          business as now being conducted, except where the failure to
          be so organized, existing and in good standing or to have
          such power and authority would not, individually or in the
          aggregate, have a material adverse effect on the business,
          results of operations (on an annualized basis) or financial
          condition of the Business (a "Material Adverse Effect"). 
          Without limiting the generality of the foregoing definition
          of "Material Adverse Effect", such definition shall
          specifically include adverse financial consequences to the
          Business in excess of $5 million and shall exclude (i) the
          effects of currency fluctuations and currency devaluations
          and (ii) the termination of business arrangements with Astra
          or Connaught as a result of the transactions contemplated
          hereby.  

                         (b)  Sellers have heretofore furnished or
          made available to Purchaser complete and correct copies of
          each Seller's and each Transferred Subsidiary's Certificate
          of Incorporation and By-Laws and/or equivalent
          organizational documents, each as amended to the date
          hereof.  Such Certificate of Incorporation, By-Laws and
          equivalent organizational documents are in full force and
          effect and no other organizational documents are applicable
          to or binding upon Sellers or the Transferred Subsidiaries. 
          No Seller or Transferred Subsidiary is in violation of any
          of the provisions of its Certificate of Incorporation or By-
          Laws or equivalent organizational documents.

                    Section 4.2  Capitalization of Transferred
          Subsidiaries; Asset Ownership.  There is no authorized,
          issued or outstanding capital stock of Lepetit Brazil.   
          The authorized capital stock of Lepetit Mexico consists of
          7,850 Series A Shares, par value 10 New Pesos per share,
          105,096 Series B shares, par value 10 New Pesos per share,
          and 238,600 Series C shares, par value 10 New Pesos per
          share, all of which shares are issued and outstanding. 
          Except as set forth above, there are outstanding (i) no
          shares of capital stock or other voting securities of any
          Transferred Subsidiary, (ii) no securities of Sellers or any
          of their affiliates (including, without limitation, the
          Transferred Subsidiaries) convertible into or exchangeable
          for shares of capital stock or voting securities of any
          Transferred Subsidiary, (iii) no options, subscriptions,
          warrants, convertible securities, calls or other rights to
          acquire from Sellers or any of their affiliates (including,
          without limitation, the Transferred Subsidiaries), and no
          obligation of Sellers or any of their affiliates (including,
          without limitation, the Transferred Subsidiaries) to issue,
          deliver or sell any capital stock, voting securities or
          securities convertible into or exchangeable for capital
          stock or voting securities of any Transferred Subsidiary and
          (iv) no equity equivalents, interests in the ownership or
          earnings of any Transferred Subsidiary or other similar
          rights.  Except for Dow Argentina, Lepetit Brazil, Lepetit
          Mexico, LAPI, Dow Brazil (Dow Productos after the
          Restructuring), Dow Panama (LAPI after the Restructuring)
          and Dow Mineracao, no person or entity owns any portion of
          the Designated Assets.  

                    Section 4.3  Authorization; Enforceability.   Each
          Seller and Transferred Subsidiary has all necessary
          corporate power and authority to execute and deliver this
          Agreement, and will, prior to the Closing Date, have all
          necessary corporate power and authority to perform its
          obligations hereunder and to consummate the transactions
          contemplated hereby.  The execution and delivery of this
          Agreement have been, and the performance of this Agreement
          and the consummation of the transactions contemplated hereby
          will, prior to the Closing Date, have been, duly and validly
          authorized by the board of directors of each Seller and
          Transferred Subsidiary and no other corporate proceedings on
          the part of any Seller or Transferred Subsidiary are or will
          be necessary to authorize this Agreement or to consummate
          the transactions so contemplated.  This Agreement has been
          duly and validly executed and delivered by each Seller and
          Transferred Subsidiary and constitutes a legal, valid and
          binding agreement of each Seller and Transferred Subsidiary
          enforceable against each Seller and Transferred Subsidiary
          in accordance with its terms. 

                    Section 4.4  Equity Holdings of Transferred
          Subsidiaries.  None of the Transferred Subsidiaries owns,
          directly or indirectly, any capital stock of or other equity
          interests in any other person.  

                    Section 4.5  Title to Shares. Schedule 4.5
          accurately describes the Shares owned by Dow Brazil (which
          will be owned by Dow Productos after the Restructuring), Dow
          Mineracao and LAPI.  Each such Seller has good, valid and
          marketable title to the Shares owned by it, free and clear
          of all security interests, liens, claims, pledges, charges,
          voting trusts or agreements or other encumbrances of any
          nature whatsoever (collectively, "Liens") and free and clear
          of any preemptive or similar rights.  

                    Section 4.6  Non-Contravention; Required Filings
          and Consents.  (a) The execution, delivery and performance
          by Sellers and the Transferred Subsidiaries of this
          Agreement and the consummation of the transactions
          contemplated hereby do not and will not (i) contravene or
          conflict with the Certificate of Incorporation or By-Laws or
          the equivalent organizational documents of any Seller or
          Transferred Subsidiary; (ii) assuming that all consents,
          authorizations and approvals contemplated by subsection (b)
          below have been obtained and all filings described therein
          have been made, contravene or conflict with or constitute a
          violation of any provision of any law, regulation, judgment,
          injunction, order or decree binding upon or applicable to
          any Seller or Transferred Subsidiary or any of their
          respective properties or assets (including, without
          limitation, the Designated Assets) or the Business; (iii)
          except as set forth in Schedule 4.6, conflict with, or
          result in the breach or termination of any provision of or
          constitute a default (with or without the giving of notice
          or the lapse of time or both) under, or require any consent
          under or give rise to any right of termination,
          cancellation, or loss of any benefit to which any Seller or
          Transferred Subsidiary is entitled under any provision of
          any agreement, contract, license or other instrument binding
          upon any Seller or Transferred Subsidiary or any of their
          respective properties or assets (including, without
          limitation, the Designated Assets), or allow the
          acceleration of the performance of, any obligation of any
          Seller or Transferred Subsidiary under any indenture,
          mortgage, deed of trust, lease, license, contract,
          instrument or other agreement to which any Seller or
          Transferred Subsidiary is a party or by which any Seller or
          Transferred Subsidiary or any of their respective assets or
          properties (including, without limitation, the Designated
          Assets) is subject or bound; or (iv) result in the creation
          or imposition of any Lien on any asset of any Seller or
          Transferred Subsidiary; except in the case of clauses (ii),
          (iii) and (iv) for any such contraventions, conflicts,
          violations, breaches, terminations, defaults, cancellations,
          losses, accelerations and Liens which would not individually
          or in the aggregate have a Material Adverse Effect or
          materially interfere with the consummation of the
          transactions contemplated by this Agreement. 

                         (b)  The execution, delivery and performance
          by Sellers and the Transferred Subsidiaries and the
          consummation of the transactions contemplated hereby by
          Sellers and the Transferred Subsidiaries require no action
          by or in respect of, or filing with, any governmental body,
          agency, official or authority (either domestic or foreign)
          other than (i) filings with the appropriate antitrust
          authorities in Brazil and Mexico and the expiration of
          applicable waiting periods in connection therewith; (ii)
          filings with the Federal Investment Bureau in Mexico; (iii)
          filings and approvals with respect to the transfer of
          certain product registrations in Argentina; (iv) such other
          filings with and approvals of governmental authorities in
          Brazil, Mexico and Argentina as may be agreed to by Sellers
          and Purchaser between the date hereof and the Closing Date;
          and (v) such actions or filings which, if not taken or made,
          would not individually or in the aggregate have a Material
          Adverse Effect or materially interfere with the consummation
          of the transactions contemplated by this Agreement.    

                    Section 4.7  Financial Statements.  

                         (a)  Consolidated financial statements of the
          Business, which include a balance sheet as at and income
          statement for the fiscal year ended December 31, 1994 and a
          detailed description of intercompany eliminations (together
          with the notes thereto, the "Financial Statements"), will be
          provided to Purchaser as Schedule 4.7(a) to this Agreement
          no later than May 10, 1995.  The Financial Statements fairly
          present, in conformity with  (except as may be indicated in
          the notes thereto), the consolidated financial position of
          the Business as of the dates thereof and the consolidated
          results of operations of the Business for the periods then
          ended.  For purposes of this Agreement, U.S. GAAP means
          United States generally accepted accounting principles as
          set forth in the opinions and pronouncements of the
          Accounting Principles Board of the American Institute of
          Certified Public Accountants and statements and
          pronouncements of the Financial Accounting Standards Board,
          in each case applied on a consistent basis.

                         (b)  (i) Audited financial statements for
          Lepetit Mexico consisting of balance sheets as at and income
          statements for the fiscal years ended December 31, 1994,
          December 31, 1993 and December 31, 1992 prepared in
          accordance with Mexican generally accepted accounting
          principles applied on a consistent basis together with the
          notes thereto and related statements representing the
          translation thereof into U.S. GAAP and (ii) unaudited
          financial statements of the Business as conducted in each of
          Argentina and Brazil, consisting of balance sheets as at and
          income statements for the fiscal year ended December 31,
          1994 prepared in accordance with the generally accepted
          accounting principles of Argentina and Brazil, respectively,
          applied on a consistent basis, together with the notes
          thereto and related statements representing the translation
          thereof into U.S GAAP (such Mexican, Argentine and Brazilian
          financial statements being collectively, the "Regional
          Financial Statements"), will be provided to Purchaser as
          Schedule 4.7(b) to this Agreement no later than May 10,
          1995.  The Regional Financial Statements fairly present, in
          conformity with the relevant generally accepted accounting
          principles referred to above ("Local GAAP") or generally
          accepted accounting principles, as the case may be, applied
          on a consistent basis (except as may be indicated in the
          notes thereto), the consolidated financial position of the
          Business as of the dates thereof in each of Argentina,
          Brazil and Mexico, as the case may be, and the consolidated
          results of operations of the Business for the periods then
          ended in each of Argentina, Brazil and Mexico, as the case
          may be.

                         (c)  A list of the reserves included in the
          Financial Statements and Regional Financial Statements (in
          U.S. GAAP and Local GAAP) together with a detailed
          description of the matters covered by each such reserve will
          be provided to Purchaser as Schedule 4.7(c) to this
          Agreement no later than May 10, 1995.

                    Section 4.8  No Undisclosed Liabilities.  Except
          as reflected or reserved against in the Financial Statements
          or Regional Financial Statements and for matters covered by
          the Insurance Agreement, neither Sellers nor any of their
          affiliates have any liabilities of any nature (whether
          accrued, absolute, contingent or otherwise) relating to the
          Business, except for liabilities incurred in the ordinary
          course of business since December 31, 1994 which would not,
          individually or in the aggregate, have a Material Adverse
          Effect.

                    Section 4.9  Accounts Receivable.  All accounts
          receivable included in the Designated Assets represent sales
          actually made in the ordinary course of business and
          represent the legal, valid and binding obligations of the
          obligors thereon.  The Financial Statements and Closing
          Balance Sheet contain, as of their respective dates,
          adequate and sufficient reserves for bad debts in respect of
          accounts receivable of the Business.

                    Section 4.10  Inventory.  All of the inventories
          included in the Designated Assets consist of a quality and
          quantity useable and saleable in the ordinary course of
          business (it being understood that a product shall be
          considered unsaleable if its remaining shelf life is less
          than six months).  Inventories of the Business are valued in
          the Financial Statements and Closing Balance Sheet at the
          lower of cost or market, with obsolete or below-standard
          quality materials having been written off. 

                    Section 4.11  Absence of Certain Changes.  Since
          December 31, 1994, except as disclosed in Schedule 4.11 and
          except for the Restructuring and the transactions
          contemplated hereby, neither Sellers nor any of their
          affiliates has (i) taken any of the actions set forth in
          Section 6.1 except as permitted thereunder, or (ii) in
          connection with the Business, entered into any transaction,
          or conducted its business or operations, other than in the
          ordinary course of business consistent with past practice. 
          Since December 31, 1994, there has not been any material
          adverse change in the business, results of operations (on an
          annualized basis) or financial condition of the Business.

                    Section 4.12  Intellectual Property.  

                         (a)  Except as set forth on Schedule 4.12(a)
          or to the extent that the inaccuracy of any of the following
          (or the circumstances giving rise to such inaccuracy)
          individually or in the aggregate, would not reasonably be
          expected to have a Material Adverse Effect:  (1) Subject to
          the provisions of Section 6.16, Dow Argentina, Lepetit
          Brazil, Lepetit Mexico and LAPI own, or are licensed to use
          (in each case, free and clear of any Liens), all
          Intellectual Property (as defined below) used in or
          necessary for the conduct of Business; (2) to the knowledge
          of Sellers, the use of Intellectual Property in the conduct
          of the Business does not infringe on or otherwise violate
          the rights of any person; (3) to the knowledge of Sellers,
          no product (or component thereof or process) used, sold or
          manufactured by and/or for, or supplied to, the Business
          infringes or otherwise violates the Intellectual Property of
          any other person; (4) to the knowledge of Sellers, no person
          is challenging (by way of opposition, interference,
          cancellation, arbitration, interference, nullity, or other
          similar proceedings), infringing on or otherwise violating
          any right with respect to any Intellectual Property used in
          or necessary for the conduct of the Business; and (5) all
          trademarks, service marks, certification marks and similar
          marks used in or necessary for the conduct of the Business
          are properly registered in each jurisdiction where such
          trademarks are used by the Business.  For purposes of this
          Agreement "Intellectual Property" shall mean, without
          limitation, trademarks, service marks, brand names,
          certification marks, trade dress, assumed names, trade names
          and other indications of origin, the goodwill associated
          with the foregoing and registrations in any jurisdiction of,
          and applications in any jurisdiction to register, the
          foregoing, including any extension, modification or renewal
          of any such registration or application; inventions,
          discoveries and ideas, whether patentable or not in any
          jurisdiction; patents, applications for patents (including,
          without limitation, division, continuations, continuations,
          reexaminations in part and renewal applications), and any
          renewals, extensions, reexaminations or reissues thereof, in
          any jurisdiction; nonpublic information, invention
          disclosure, trade secrets and confidential information and
          rights in any jurisdiction to limit the use or disclosure
          thereof by any person; writings and other works, whether
          copyrightable or not in any jurisdiction; registrations or
          applications for registration of copyrights in any
          jurisdiction, and any renewals or extensions thereof; any
          similar intellectual property or proprietary rights such as
          mask works or seed rights; and any claims or causes of
          action arising out of or related to any infringement or
          misappropriation of any of the foregoing.

                         (b)  Set forth on Schedule 4.12(b) are all
          the patents, applications for patents (including, without
          limitation, division, continuations, continuations in part
          and renewal applications), or any renewals, extensions,
          reexaminations or reissues thereof, in any jurisdiction,
          which are used in or necessary for the conduct of the
          Business.

                         (c)  Schedule 4.12(c) sets forth a true and
          complete list of all trademarks, service marks, brand names,
          certification marks, trade dress, assumed names, trade names
          and other indications of origin, and registrations in any
          jurisdiction of, and applications in any jurisdiction to
          register, the foregoing, including any extension,
          modification or renewal of any such registration or
          application which are used in or necessary for the conduct
          of the Business.

                    Section 4.13   Tax Matters. 

                         (a)  As used in this Agreement, the following
          terms shall have the following meanings:

                              (i) "Tax" means any (including, but not
          limited to, Argentine, Brazilian, Mexican, or U.S.) ad
          valorem, alternative or add-on minimum, capital stock,
          custom duty, disability, employment, environmental,
          estimated, excise, franchise, governmental fee or other like
          assessment or charge of any kind whatsoever, gross receipts,
          income, license, occupation, payroll, premium, profits,
          property (including real, personal, and intangible),
          registration, sales, severance, social security (or
          similar), stamp, transfer, unemployment, use, value-added,
          windfall profits, withholding, or other tax of any kind
          whatsoever, including any interest, penalty, or addition
          thereto, whether disputed or not.

                              (ii) "Tax Return" means any return,
          declaration, report, claim for refund, or information return
          or statement relating to Taxes, including any schedule or
          attachment thereto, and including any amendment thereof.

                             (b)  There are no Liens on any of the
          Designated Assets that arose in connection with any failure
          (or alleged failure) to pay any Tax due prior to the Closing
          Date.  To Sellers or any of their affiliates knowledge,
          there are no facts or circumstances that could give rise to
          such a Lien or support the imposition by any Tax authority
          of transferee Tax liability with respect to the Business or
          the Designated Assets.  The purchasers of the Designated
          Assets will not be liable for any Tax Liability related to
          the business or operations of Sellers or any of their
          affiliates relating to a taxable period ending on or before
          the Closing Date, other than those Tax Liabilities of the
          Transferred Subsidiaries for which Purchaser and its
          affiliates are indemnified as provided in Section 9.3
          hereof.

                         (c)  Except as set forth in Schedule 4.13(c),
          the Transferred Subsidiaries each have filed, been included
          in or sent, all material Tax Returns required to be filed or
          sent by or relating to any of them relating to any Taxes
          with respect to any material income, properties or
          operations of the Transferred Subsidiaries.  As of the time
          of filing, such Tax Returns correctly reflected in all
          material respects the facts regarding the income, business,
          assets, operations, activities and status of the Transferred
          Subsidiaries and any other material information required to
          be shown therein.  The Transferred Subsidiaries have timely
          paid or made provision for all material Taxes that have been
          shown as due and payable on the Tax Returns that have been
          filed.  The Transferred Subsidiaries have made or will make
          provision for all material Taxes payable for any periods
          that end before the Closing Date for which no Tax Returns
          have yet been filed and for any periods that begin before
          the Closing Date and end after the Closing Date to the
          extent such Taxes are attributable to the portion of any
          such period ending at the Closing Date.  The charges,
          accruals and reserves for Taxes reflected on the books of
          the Transferred Subsidiaries are adequate under U.S. GAAP or
          Local GAAP, as the case may be, to cover the Tax liabilities
          accruing or payable by the Transferred Subsidiaries in
          respect of periods prior to the date hereof.  None of the
          Transferred Subsidiaries are delinquent in the payment of
          any material Taxes or has requested any extension of time
          within which to file or send any material Tax Return (other
          than extensions granted to the Transferred Subsidiaries for
          the filing of their Tax Returns as set forth in Schedule
          4.13(c)), which Tax Return has not since been filed or sent. 
          No material deficiency for any Taxes has been proposed,
          asserted or assessed in writing against the Transferred
          Subsidiaries (or any member of any affiliated or combined
          group of which the Transferred Subsidiaries are or has been
          a member for which any of the Transferred Subsidiaries could
          be liable) other than those Taxes being contested in good
          faith by appropriate proceedings and set forth in Schedule
          4.13(c) (which shall set forth the nature of the proceeding,
          the type of return, the deficiencies proposed, asserted or
          assessed and the amount thereof, and the taxable year in
          question).  None of the Transferred Subsidiaries have
          granted any extension of the limitation period applicable to
          any material Tax claims other than those Taxes being
          contested in good faith by appropriate proceedings.  None of
          the Transferred Subsidiaries are subject to liability for
          Taxes of any person (other than the Transferred
          Subsidiaries), including, without limitation, liability
          arising from the application of any provision analogous to
          U.S. Treasury Regulation Section 1.1502-6.  None of the
          Transferred Subsidiaries are or has been a party to any
          material Tax sharing agreement with any corporation.  To the
          knowledge of Sellers or any of their affiliates, no claim
          has been made by an authority in a jurisdiction where any of
          the Transferred Subsidiaries do not file Tax Returns that
          such entities are or may be subject to taxation by that
          jurisdiction.  Schedule 4.13(c) (i) lists all federal,
          state, local, and foreign income Tax Returns filed by the
          Transferred Subsidiaries for taxable periods ended on or
          after December 31, 1988, (ii) indicates those Tax Returns
          that have been audited, and (iii) indicates those Tax
          Returns that currently are the subject of audit.  Sellers
          have delivered to Purchaser correct and complete copies of
          all income Tax Returns, examination reports in the records
          of Sellers or any of their affiliates as of the date of this
          Agreement or the Closing Date, and statements of
          deficiencies assessed against or agreed to by the
          Transferred Subsidiaries, if any, since December 31, 1984.

                    Section 4.14  Contracts and Commitments. 

                         (a)  Schedule 4.14(a) lists each of the
          following contracts and agreements of Sellers or any of
          their affiliates relating to the Business (such contracts
          and agreements being "Material Contracts"):

                              (i)  any collective bargaining
               agreement;

                              (ii)  any employee agreement with
               any employee;

                              (iii)  any contract entered into in
               the ordinary course of business which involves the
               payment or receipt of an amount in excess of
               $250,000 or any contract entered into outside of
               the ordinary course of business which involves the
               payment or receipt of an amount in excess of
               $50,000;

                              (iv)  any credit agreement, loan
               agreement, indenture, note, mortgage, security
               agreement, loan commitment, evidence of
               indebtedness, or other contract relating to the
               borrowing of a material amount of funds;

                              (v)  any lease of real property
               that is material to the Business;

                              (vi)  any contract outside the
               ordinary course of business granting to any Person
               a right of first refusal or option to purchase or
               acquire any material assets; and

                              (vii)  any agreement, contract or
               commitment exclusively between or among TDCC
               and/or one or more affiliates of TDCC.

                         (b)  Sellers have heretofore furnished or
          made available to Purchaser complete and correct copies of
          the Material Contracts, each as amended or modified to the
          date hereof (including any waivers with respect thereto). 
          Since December 31, 1994, there have been no transactions
          between Sellers and their affiliates, on the one hand, and
          the other parties to the Material Contracts or any of their
          respective affiliates, on the other hand, other than
          transactions in the ordinary course of business consistent
          with past practice pursuant to and in accordance with the
          terms of the Material Contracts.  Each of the Material
          Contracts is in full force and effect and enforceable in
          accordance with its terms.  Except for the possible
          termination of the business arrangements with Astra as a
          result of the transactions contemplated hereby, neither
          Sellers nor any of their affiliates has received any notice
          (written or oral) of cancellation or termination of, or any
          expression or indication of an intention or desire to cancel
          or terminate, any of the Material Contracts.  No Material
          Contract is the subject of, or has been threatened to be
          made the subject of, any arbitration, suit or other legal
          proceeding.  With respect to any Material Contract which by
          its terms will terminate as of a certain date unless renewed
          or unless an option to extend such Material Contract is
          exercised, neither Sellers nor any of their affiliates has
          received any notice (written or oral), or otherwise has any
          knowledge, that any such Material Contract will not be, or
          is not likely to be, so renewed or that any such extension
          option will not be exercised.  There exists no event of
          default or occurrence, condition or act on the part of
          Sellers or any of their affiliates or, to the knowledge of
          Sellers, on the part of the other parties to the Material
          Contracts which constitutes or would constitute (with notice
          or lapse of time or both) a breach of or default under any
          of the Material Contracts.  Except as set forth in Schedule
          4.14(b), the execution, delivery and performance by Sellers
          and the Transferred Subsidiaries of this Agreement and the
          consummation of the transactions contemplated hereby
          (including the Restructuring) do not and will not conflict
          with, or result in the breach or termination of any
          provision of or constitute a default (with or without the
          giving of notice or the lapse of time or both) under, or
          require any consent under, or give rise to any right of
          termination, cancellation, or loss of any benefit to which
          the Business is entitled under any provision of any Material
          Contract.

                    Section 4.15  Labor Relations.  No collective
          bargaining agreement is being negotiated by TDCC or any of
          its affiliates with respect to any of the employees of the
          Business.  Except as previously disclosed to Purchaser, to
          the knowledge of Sellers, there are no activities or
          proceedings of any labor union to organize any of the
          employees of the Business.  There is no labor dispute,
          strike or work stoppage against the Business pending or, to
          the knowledge of Sellers, threatened which may interfere
          with the Business, except where such dispute, strike or work
          stoppage would not reasonably be expected to have a Material
          Adverse Effect on the Business.

                    Section 4.16  Employee Benefit Plans.   Schedule
          4.16 identifies each "Employee Benefit Arrangement",
          including any employee benefit plan, practice, policy or
          arrangement of any kind, oral or written, covering Employees
          (as defined below), which Sellers or any of their affiliates
          maintains, or to which Sellers or any of their affiliates
          contributes.  Such schedule is complete and accurate in all
          material respects.  All Employee Benefit Arrangements comply
          in all material respects with applicable law.  Neither
          Sellers nor any of their affiliates have any obligations
          with respect to the Employees for retiree health and life
          benefits under any Employee Benefit Arrangement.  There are
          no Employee Benefit Arrangements providing pension,
          retirement or other similar benefits other than those
          Employee Benefit Arrangements in connection with which
          Sellers or their affiliates make contributions as required
          by applicable law.  With respect to each Employee Benefit
          Arrangement:  (i) Sellers and their affiliates are in
          compliance in all material respects with the terms of such
          Employee Benefit Arrangement and with the requirements
          prescribed by applicable law; (ii) except as disclosed on
          Schedule 4.16, there are no material actions or proceedings
          (other than routine claims for benefits) pending or, to the
          knowledge of Sellers, threatened, with respect to any
          Employee Benefit Arrangement; and (iii) all contributions to
          each Employee Benefit Arrangement that may have been
          required to be made in accordance with the terms of the
          Employee Benefit Arrangement and applicable law, have been
          timely made.  None of the Employee Benefit Arrangements is
          subject to the provisions of the Employee Retirement Income
          Security Act of 1974, as amended.  The aggregate amount of
          outstanding loans made by Sellers or any of their affiliates
          to officers, directors or other managerial employees of the
          Business is less than $100,000.  Schedule 4.16 sets forth a
          true and complete list of all agreements (other than
          agreements with respect to the loans referred to in the
          preceding sentence) between Sellers or any of their
          affiliates, on the one hand, and any officer, director or
          other managerial employee of the Business, on the other
          hand.  As used in this Agreement, "Employees" means all
          employees of the Business employed immediately prior to the
          Closing and identified on Schedule 4.16 (which Schedule
          accurately sets forth the wage, salary or other compensation
          currently paid to each such Employee).

                    Section 4.17  Absence of Litigation.  Except as
          set forth on Schedule 4.17, there is no action, suit, claim,
          investigation or proceeding pending against, or to the
          knowledge of Sellers, threatened against or affecting, TDCC
          or any of its affiliates, the Business or the Designated
          Assets before any court or arbitrator or any administrative,
          regulatory or governmental body, or any agency or official
          which (i) individually or in the aggregate, would reasonably
          be expected to have a Material Adverse Effect; (ii) in any
          manner challenges or seeks to prevent, enjoin, alter or
          delay the transactions contemplated hereby; or (iii) alleges
          criminal action or inaction relating to the Business or the
          Designated Assets.  As of the date hereof, neither any
          aspect of the Business nor any of the Designated Assets is
          subject to any order, writ, judgment, injunction, decree,
          determination or award having, or which would reasonably be
          expected to have, a Material Adverse Effect or which would
          prevent or delay the consummation of the transactions
          contemplated hereby.

                    Section 4.18  Compliance.  Neither Sellers nor any
          of their affiliates is in violation of, or has violated, in
          any such case in connection with the conduct of the
          Business, any applicable provisions of (i) any laws, rules,
          statutes, orders, ordinances or regulations (including,
          without limitation, those relating to the protection of the
          environment or the discharge of hazardous materials) or (ii)
          any note, bond, mortgage, indenture, contract, agreement,
          lease, license, permit, franchise, or other instrument or
          obligations to which LAPI, Dow Argentina or any Transferred
          Subsidiary is a party or by which LAPI, Dow Argentina, any
          Transferred Subsidiary or any of the Designated Assets are
          bound or affected, which, individually or in the aggregate,
          would result or reasonably be expected to result in a
          Material Adverse Effect.

                    Section 4.19  Designated Assets; Good Title
          Conveyed, Etc.  All properties and assets (tangible and
          intangible), rights and other items utilized or necessary in
          the conduct of the Business are included in the Designated
          Assets, and such tangible assets are, in the aggregate, in
          good condition and, if applicable, in good working order,
          ordinary wear and tear excepted.  Sellers and their
          affiliates have complete and unrestricted power and the
          unqualified right to sell, assign, transfer and deliver to
          Purchaser, and upon consummation of the transactions
          contemplated by this Agreement, Purchaser will acquire,
          good, valid and marketable title to, the Designated Assets,
          free and clear of all Liens, except for Liens which in the
          aggregate would not have a Material Adverse Effect (it being
          understood and agreed that title to the Designated Assets of
          the Transferred Subsidiaries will not be transferred
          directly but indirectly through the transfer to Purchaser of
          the Shares).  Sellers and their affiliates have complete and
          unrestricted power and the unqualified right to sell,
          assign, transfer and deliver to Purchaser, and upon
          consummation of the transactions contemplated by this
          Agreement, Purchaser will acquire, good, valid and
          marketable title to, the Shares, free and clear of all
          Liens.  The bills of sale, deeds, endorsements, assignments
          and other instruments to be executed and delivered to
          Purchaser by Sellers at the Closing will be valid and
          binding obligations of Sellers enforceable in accordance
          with their terms.  

                    Section 4.20  Brokers and Finders.  No broker or
          finder has acted directly or indirectly for Sellers or any
          of their affiliates in connection with this Agreement or the
          transactions contemplated hereby, except for Morgan Stanley
          & Co. Incorporated ("Morgan Stanley"), whose fees and
          expenses will be paid by TDCC.

                    
                        Section 4.21  Insurance.  Schedule 4.21 sets forth
          a complete and correct list of all insurance policies
          (including a brief summary of the nature and terms thereof
          and any amounts paid or payable to the Business) providing
          coverage in respect of the Business and the Designated
          Assets.  Each such policy is in full force and effect, no
          notice of termination, cancellation or reservation of rights
          has been received with respect to any such policy, there is
          no default with respect to any provision contained in any
          such policy, and there has not been any failure to give any
          notice or present any claim under any such policy in a
          timely fashion or in the manner or detail required by any
          such policy, except for any such failures to be in full
          force and effect, any such terminations, cancellations,
          reservations or defaults, or any such failures to give
          notice or present claims which, individually or in the
          aggregate, would not reasonably be expected to have a
          Material Adverse Effect.  The coverage provided by such
          policies is adequate and sufficient, in nature, scope and
          amount, in accordance with applicable good risk management
          practice.

                    Section 4.22  Product Matters.  

                         (a)  Schedule 4.22 sets forth a complete and
          correct list of all products that are, directly or
          indirectly, being researched in human subjects or
          distributed for commercial sale by Sellers or any of their
          affiliates in connection with the Business (the
          "Products")(including, on such Schedule 4.22, a list of all
          Licenses (as defined below) for each Product that have been
          obtained by Sellers or any of their affiliates, or form the
          basis for manufacturing, distribution, sale or human
          research of a Product by Sellers or any of their
          affiliates).  

                         (b)  (i) With respect to each Product: (A)
          Sellers and their affiliates have obtained all applicable
          approvals, clearances, authorizations, licenses and
          registrations required by applicable governments or
          government agencies, to permit the manufacture,
          distribution, sale, marketing or human research of such
          Product (collectively, "Licenses"); (B) Sellers and their
          affiliates are in full compliance with all terms and
          conditions of each License in each country in which such
          Product is marketed, and with all requirements pertaining to
          the manufacture, distribution, sale or human research of
          such Product which is not required to be the subject of a
          License; and (C) Sellers and their affiliates are in full
          compliance with all applicable requirements (as set forth in
          relevant statutes and regulations) regarding registration,
          licensure or notification for each site (in any country) at
          which such Product is manufactured, processed, packed, held
          for distribution or from which it is distributed; (ii) all
          manufacturing operations performed in connection with the
          Business have been and are being conducted in full
          compliance with applicable good manufacturing practice;
          (iii) all nonclinical laboratory studies sponsored by
          Sellers or any of their affiliates in connection with the
          Business have been and are being conducted in full
          compliance with applicable good laboratory practice
          regulations; and (iv) TDCC and its affiliates are in full
          compliance with all reporting requirements for all Licenses
          or plant registrations described in the preceding clauses
          (b)(i)(A) and (b)(i)(C); except, in the case of the
          preceding clauses (b)(i)(A) through (b)(i)(C), inclusive,
          (b)(ii), (b)(iii) and (b)(iv), for any such failures to
          obtain or noncompliances which, individually or in the
          aggregate, would not reasonably be expected to have a
          Material Adverse Effect. 

                    Section 4.23  Product Liability.  

                         (a)  Except as set forth on Schedule 4.23(a),
          there are not presently pending, or to the knowledge of
          Sellers, threatened civil, criminal or administrative
          actions, suits, demands, claims, hearings, notices of
          violation, investigations, proceedings or demand letters
          relating to any alleged hazard or alleged defect in design,
          manufacture, materials or workmanship, including, without
          limitation, any alleged failure to warn or alleged breach of
          express or implied warranties or representations, relating
          to any product manufactured, distributed, or sold by or on
          behalf of the Business.

                         (b)  To the knowledge of Sellers, except as
          set forth on Schedule 4.23(b), since January 1, 1991, there
          have not been any civil, criminal or administrative actions,
          suits, demands, claims, hearings, notices of violation,
          investigations, proceedings or demand letters pending, or to
          the knowledge of Sellers, threatened, against TDCC or any of
          its affiliates relating to any alleged hazard or alleged
          defect in design, manufacture, materials or workmanship,
          including, without limitation, any alleged failure to warn
          or alleged breach of express or implied warranties or
          representations, relating to any product manufactured,
          distributed, or sold by or on behalf of the Business.

                         (c)  Except as set forth on Schedule 4.23(c),
          since January 1, 1991, there have not been any product
          recalls, reworks or post-sale warnings ("Recalls") by TDCC
          or any of its affiliates relating to any product
          manufactured, distributed, or sold by or on behalf of the
          Business, or any investigation or consideration of or
          decision made by Sellers or any of their affiliates, or to
          the knowledge of Sellers, by any other person, concerning
          whether to undertake or not to undertake any Recall. 

                                    ARTICLE V

                         REPRESENTATIONS AND WARRANTIES
                                  OF PURCHASER
            
                    Purchaser represents and warrants to Sellers as
          follows:

                    Section 5.1  Corporate Organization, Etc. 
          Purchaser is a societe anonyme duly organized, validly
          existing and in good standing under the laws of France. 
          Purchaser has all requisite corporate power and authority to
          own, lease and operate its properties and to carry on its
          business as now being conducted, except where the failure to
          have such power and authority would not in the aggregate
          materially interfere with the consummation by Purchaser of
          the transactions contemplated by this Agreement.

                    Section 5.2  Authorization; Enforceability. 
          Purchaser has all necessary corporate power and authority to
          execute and deliver this Agreement, and perform its
          obligations hereunder and to consummate the transactions
          contemplated hereby.  The execution and delivery of this
          Agreement have been, and the performance of this Agreement
          and the consummation of the transactions contemplated hereby
          have been, duly and validly authorized by the Supervisory
          Board of Purchaser and no other corporate proceedings on the
          part of Purchaser are or will be necessary to authorize this
          Agreement or to consummate the transactions so contemplated. 
          This Agreement has been duly and validly executed and
          delivered by Purchaser and constitutes a legal, valid and
          binding agreement of Purchaser enforceable against Purchaser
          in accordance with its terms. 

                    Section 5.3  Non-Contravention; Required Filings
          and Consents.  (a) The execution, delivery and performance
          by Purchaser of this Agreement and the consummation of the
          transactions contemplated hereby do not and will not
          (i) contravene or conflict with the Certificate of
          Incorporation or By-Laws or the equivalent organizational
          documents of Purchaser; (ii) assuming that all consents,
          authorizations and approvals contemplated by subsection (b)
          below have been obtained and all filings described therein
          have been made, contravene or conflict with or constitute a
          violation of any provision of any law, regulation, judgment,
          injunction, order or decree binding upon or applicable to
          Purchaser or any of its properties or assets; (iii) result
          in the creation or imposition of any Lien on any asset of
          Purchaser; or (iv) result in the breach of any material
          contract binding upon Purchaser; except in the case of
          clauses (ii), (iii) or (iv) above for any such
          contraventions, conflicts, violations, Liens or breaches
          which would not individually or in the aggregate materially
          interfere with the consummation of the transactions
          contemplated by this Agreement. 

                         (b)  The execution, delivery and performance
          by Purchaser and the consummation of the transactions
          contemplated hereby by Purchaser require no action by or in
          respect of, or filing with, any governmental body, agency,
          official or authority (either domestic or foreign) other
          than (i) filings with the appropriate antitrust authorities
          in Brazil and Mexico in connection therewith; (ii) filings
          with and the approval of the Federal Investment Bureau in
          Mexico; (iii) filings and approvals with respect to the
          transfer of certain product registrations in Argentina; (iv)
          such other filings with and approvals of governmental
          authorities in Brazil Mexico and Argentina as may be agreed
          to by Sellers and Purchaser between the date hereof and the
          Closing Date; and (v) such actions or filings which, if not
          taken or made, would not individually or in the aggregate
          materially interfere with the consummation of the
          transactions contemplated by this Agreement.    

                    Section 5.4  Availability of Purchase Price at
          Closing.  At Closing, Purchaser shall have sufficient funds
          available for the payment of the Purchase Price.

                    Section 5.5  Brokers and Finders.  No broker or
          finder has acted directly or indirectly for Purchaser or any
          of its affiliates in connection with this Agreement or the
          transactions contemplated hereby, except for J.P. Morgan &
          Co., whose fees and expenses will be paid by Purchaser.

                                   ARTICLE VI

                            COVENANTS OF THE PARTIES

                    Purchaser, on one hand, and Sellers and the
          Transferred Subsidiaries, on the other hand, hereby covenant
          and agree as follows:

                    Section 6.1  Conduct of the Business.  Except as
          otherwise expressly provided in this Agreement or as may be
          required to effect the Restructuring, during the period from
          the date hereof until the completion of the Closing, Sellers
          shall, and shall cause their affiliates to, conduct the
          Business according to its ordinary course of business
          consistent with past practice, and Sellers shall, and shall
          cause their affiliates to, use their respective best efforts
          to preserve intact the business organization of the
          Business, to keep available the services of the officers
          (except for those from whom Purchaser has requested a
          resignation) and employees of the Business and to maintain
          existing relationships of the Business with licensors,
          licensees, suppliers, contractors, distributors, customers
          and others having business relationships with the Business. 
          Without limiting the generality of the foregoing, and except
          as otherwise expressly provided in this Agreement or as may
          be required to effect the Restructuring, prior to the
          completion of the Closing, in connection with the Business,
          Sellers shall not, and shall cause their affiliates not to,
          without the prior written consent of Purchaser:

                         (a)  amend or propose to amend the
          certificate or articles of incorporation or by-laws or
          equivalent organizational documents of any of the
          Transferred Subsidiaries;

                         (b)  authorize for issuance, issue, sell,
          deliver or agree or commit to issue, sell or deliver
          (whether through the issuance or granting of options,
          warrants, commitments, subscriptions, rights to purchase or
          otherwise) any stock of any class or any other securities or
          equity equivalents (including, without limitation, stock
          appreciation rights) of any of the Transferred Subsidiaries
          or amend any of the terms of any such securities or
          agreements outstanding as of the date hereof;

                         (c)  split, combine or reclassify any shares
          of the capital stock of any of the Transferred Subsidiaries,
          declare, set aside or pay any dividend or other distribution
          (whether in cash, stock, or property or any combination
          thereof) in respect of such capital stock, or redeem,
          repurchase or otherwise acquire any of the securities of any
          of the Transferred Subsidiaries;

                         (d)  (i) except for drawing on existing
          working capital facilities in the ordinary course of
          business, incur any indebtedness for borrowed money or issue
          any debt securities or, except in the ordinary course of
          business consistent with past practice, assume, guarantee or
          endorse the obligations of any other person; (ii) make any
          loans, advances or capital contributions to, or investments
          in, any other person other than short-term investments of
          cash on hand in the ordinary course of business; (iii)
          pledge or otherwise encumber shares of capital stock of any
          of the Transferred Subsidiaries; or (iv) except in the
          ordinary course of business consistent with past practice,
          mortgage or pledge any of any assets, tangible or
          intangible, or create or suffer to exist any Lien thereupon;

                         (e)  except for actions taken by TDCC or its
          affiliates (other than Sellers and subsidiaries thereof),
          enter into, adopt or (except as may be required by law)
          amend or terminate any bonus, profit sharing, compensation,
          severance, termination, stock option, stock appreciation
          right, restricted stock, performance unit, stock equivalent,
          stock purchase agreement, pension, retirement, deferred
          compensation, employment, severance or other employee
          benefit agreement, trust, plan, fund or other arrangement
          for the benefit or welfare of any director, officer or
          employee, or (except, in the case of employees who are not
          officers or directors, for normal compensation increases in
          the ordinary course of business consistent with past
          practice that, in the aggregate, do not result in a material
          increase in benefits or compensation expense) increase in
          any manner the compensation or benefits of any director,
          officer or employee or pay any benefit not required by any
          plan or arrangement as in effect as of the date hereof
          (including, without limitation, the granting of stock
          options, restricted stock, stock appreciation rights or
          performance units); 

                         (f)  acquire, sell, lease or dispose of any
          assets outside the ordinary course of business or any assets
          which in the aggregate are material to the Business or enter
          into any contract, agreement, commitment or transaction
          outside the ordinary course of business consistent with past
          practice;

                         (g)  change any of the accounting principles
          or practices used in connection with the Business except as
          required to be changed at such time pursuant to Local GAAP;

                         (h)  (i) acquire (by merger, consolidation,
          or acquisition of stock or assets) any corporation,
          partnership or other business organization or division
          thereof; (ii) authorize any new capital expenditure or
          expenditures which, individually, is in excess of $100,000
          or, in the aggregate, are in excess of $500,000; (iii)
          settle any litigations for amounts in excess of the greater
          of $20,000 or the amount reserved therefor individually or
          $100,000 in the aggregate; or (iv) enter into or amend any
          contract, agreement, commitment or arrangement with respect
          to any of the foregoing;

                         (i)  make any tax election or settle or
          compromise any tax liability;

                         (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 in the ordinary course of
          business consistent with past practice or in accordance with
          their terms, of liabilities reflected or reserved against in
          the Balance Sheet (or the notes thereto) or incurred in the
          ordinary course of business consistent with past practice; 

                         (k)  terminate, modify, amend or waive
          compliance with any provision of, any of the Material
          Contracts, or fail to take any action necessary (or, with
          respect to the business arrangements with Astra or
          Connaught, fail to use its reasonable efforts) to preserve
          the benefits of any Material Contract to the Business;

                         (l)  revalue any assets (except in connection
          with the revaluation of assets due to currency fluctuations
          or devaluations in accordance with Local GAAP but including,
          without limitation, any revaluation of assets in connection
          with the Restructuring); or

                         (m)  take, or agree in writing or otherwise
          to take, any of the actions described above in Section 6.1
          or any action which would make any of the representations or
          warranties of Sellers contained in this Agreement untrue or
          incorrect in a material respect or would result in any of
          the conditions set forth in Articles VII and VIII not being
          satisfied.

                    Section 6.2  Access to Information.  Subject to
          applicable law and the confidentiality agreement between
          TDCC and Purchaser dated March 12, 1995 (the
          "Confidentiality Agreement"), between the date hereof and
          the Closing, Sellers shall, and shall cause their affiliates
          to, give Purchaser and its counsel, financial advisors,
          auditors, and other authorized representatives reasonable
          access to all employees, plants, offices, warehouses and
          other facilities and to all books and records of the
          Business, shall and shall cause their affiliates to permit
          Purchaser and its counsel, financial advisors, auditors and
          other authorized representatives to make such inspections as
          Purchaser may reasonably require with respect to the
          Business and shall cause its and its affiliates' officers to
          furnish Purchaser or its representatives with such financial
          and operating data and other information with respect to the
          Business as Purchaser may from time to time request,
          provided, however, that nothing set forth in this provision
          shall require the provision of, or access to, internal TDCC
          cost or pricing information.  No investigation pursuant to
          this Section 6.2 shall affect any representations or
          warranties of the parties herein or the conditions to the
          obligations of the parties hereunder.  

                    Section 6.3  Books and Records; Furnishing of
          Information.

                         (a)  After the Closing Date, Sellers shall
          and shall cause their affiliates to make available to
          Purchaser for inspection and copying at Purchaser's expense,
          at reasonable times after request therefor, any records,
          financial data and documents and information (relating to
          the Designated Assets and the Business) which may have been
          retained by TDCC or any of its affiliates (including,
          without limitation, any Tax Return information).  In
          addition, Sellers shall and shall cause their affiliates to
          make available former employees of the Business employed by
          TDCC or its affiliates, as Purchaser shall from time to time
          reasonably request, to permit Purchaser to prepare any Tax
          Returns and in connection with any governmental examination
          of Tax Returns relating to the Designated Assets or the
          Business for periods from and after the Closing Date.  After
          the Closing Date, Sellers shall not and shall cause their
          affiliates not to destroy or otherwise render unavailable
          any of the aforesaid records, documents, data and
          information without first offering them to Purchaser except
          that Sellers shall not be obligated to retain documents
          beyond their normal document retention period subject to
          Sellers' obligation to deliver books and records included in
          the Designated Assets.

                         (b)  Upon the request of Purchaser (who shall
          be responsible for the reasonable costs and expenses related
          thereto), Sellers shall and shall cause their affiliates to
          make available, from time to time as reasonably required,
          employees, consultants, accountants and attorneys of the
          Business employed or retained by TDCC and its affiliates,
          (i) for the purposes of giving testimony or such other
          assistance as Purchaser may reasonably need for the
          preparation and defense or prosecution of any judicial or
          administrative actions or proceedings regarding the Business
          or the Designated Assets with respect to which Purchaser is
          responsible hereunder, or (ii) for any other reasonable
          purpose related to the transactions contemplated hereby. 

                         (c)  From time to time prior to the Closing
          and subject to the terms of the Confidentiality Agreement,
          Sellers shall promptly provide to Purchaser such monthly and
          quarterly financial statements of the Business and of the
          Business as conducted in Brazil, Argentina and Mexico as are
          prepared by Sellers and their affiliates in the ordinary
          course of business.

                         (d)  Purchaser agrees that to the extent
          books and records of Sellers or their affiliates are
          delivered to it erroneously, it will return such books and
          records to TDCC within a reasonable time after discovery
          thereof and in the interim Purchaser will maintain the
          confidentiality of such books and records.

                    Section 6.4  Delivery of Disclosure Schedules. 
          Sellers shall deliver to Purchaser all Schedules to this
          Agreement no later than May 15, 1995.

                    Section 6.5  Supplements to Disclosure Schedule. 
          From time to time prior to the Closing, Sellers will
          promptly supplement or amend the Schedules with respect to
          any matter hereafter arising which, if existing or occurring
          at the date of this Agreement, would have been required to
          be set forth or described in the attached Schedules.  No
          supplement or amendment of the attached Schedules made
          pursuant to this Section 6.5 shall be deemed to cure any
          breach of any representation or warranty made in this
          Agreement.

                    Section 6.6  Sellers' Agreement Regarding
          Confidentiality.  (a) Sellers covenant that, after the
          Closing, they will not, and will not permit any of their
          affiliates to, without the prior written consent of
          Purchaser, disclose to any person confidential information
          relating to or concerning the Designated Assets or the
          Business (the "Confidential Information"), except to its or
          their officers, directors, employees and representatives who
          need to know such information for purposes of taxes,
          accounting, pending litigation and other matters necessary
          in respect of Sellers' ownership, prior to the Closing Date,
          of the Designated Assets or the Business, unless in the
          opinion of Seller's outside counsel, disclosure is required
          to be made under applicable law.  In the event that any of
          TDCC or any of its affiliates is requested or required by
          documents subpoena, civil investigative demand,
          interrogatories, requests for information, or other similar
          process to disclose any Confidential Information, Sellers
          will provide Purchaser with prompt notice of such request or
          demand or other similar process so that Purchaser may seek
          an appropriate protective order or, if such request, demand
          or other similar process is not mandatory, waive Sellers' or
          their affiliates' compliance with the provisions of this
          Section 6.6, as appropriate.

                         (b)  The term "Confidential Information" does
          not include information which (i) becomes generally
          available to the public other than as a result of disclosure
          by Sellers or any of their affiliates, or (ii) becomes
          available to Sellers or their affiliates on a non-
          confidential basis from a source other than the Business,
          provided that such source is not bound by a confidentiality
          agreement with or other obligation of confidentiality to
          Purchaser, the Business or their respective representatives.

                         (c)  For purposes of this Section 6.6,
          Sellers and their affiliates shall include any of their
          respective directors, officers, employees and
          representatives.

                    Section 6.7  Reasonable Best Efforts; Local
          Agreements.  (a) Subject to the terms and conditions herein
          provided, each of the parties hereto agrees to use its
          reasonable best efforts to take, or cause to be taken, all
          actions, and to do, or cause to be done, all things
          reasonably necessary, proper or advisable under applicable
          laws and regulations to consummate and make effective the
          transactions contemplated by this Agreement.  Without
          limiting the generality of the foregoing, the parties hereto
          shall cooperate with one another: (i) in the preparation and
          filing of any required filings under the laws referred to in
          Sections 4.6(b) and 5.3(b); (ii) in determining whether
          action by or in respect of, or filing with, any governmental
          body, agency, official or authority (either domestic or
          foreign) is required, proper or advisable or any actions,
          consents, waivers or approvals are required to be obtained
          from parties to any contracts, in connection with the
          transactions contemplated by this Agreement; (iii) in
          seeking timely to obtain any such actions, consents and
          waivers and to make any such filings (including with respect
          to the transfer of product import registrations in
          Argentina); and (iv) in negotiating alternative arrangements
          in the event a governmental consent, permit, authorization
          or registration required pursuant to the transactions
          contemplated hereby is not obtained on a timely basis, with
          the understanding that such arrangements will be designed so
          as to put the parties in a position as close as practicable
          to that which they would have been in had such consent,
          permit, authorization or registration been obtained.  In
          case at any time after the Closing any further action is
          necessary or desirable to carry out the purposes of this
          Agreement, the proper officers and directors of each party
          hereto shall promptly take all such necessary action.

                         (b)  To the extent that any party hereto
          shall reasonably request, the parties shall prepare and
          execute, with the assistance and advice of local counsel,
          additional agreements reflecting the fundamental terms of
          this Agreement in accordance with the requirements
          (including language) Argentine, Brazilian, Mexican and, if
          applicable, other local laws and customs.  Notwithstanding
          the foregoing, the parties agree that this Agreement sets
          forth the complete agreement and understanding of the
          parties with respect to the matters set forth herein and, to
          the fullest extent permitted by law, shall be controlling in
          the event of any conflict or inconsistency between the
          provisions hereof and the provisions of any of such local
          agreements.

                    Section 6.8  Covenant Not to Compete; No
          Solicitation. 

                         (a)  For a period of five years after the
          Closing Date, Sellers shall not, and shall cause their
          affiliates not to, engage, in Mexico, Central America or
          South America (the "Territory"), in the development (as used
          herein, development shall mean those activities intended to
          bring a product to market and does not include inventions,
          discoveries or the like), registration, formulation, sale or
          distribution of pharmaceutical products in final form
          suitable for human consumption ("Final-Form Pharmaceutical
          Products"), provided, however that nothing set forth herein
          shall prohibit Sellers or any of their affiliates from: (i)
          the development, registration, manufacture, sale or
          distribution of fine chemicals for pharmaceutical use in the
          Territory; (ii) the manufacturing or toll-manufacturing
          outside of the Territory of third party Final-Form
          Pharmaceutical Products (other than Final-Form
          Pharmaceutical Products under development, or being
          manufactured, sold or distributed, by the Business on the
          Closing Date) for resale or distribution in the Territory by
          such third party; or (iii) the development, registration,
          formulation or manufacture outside of the Territory, of
          intermediates, components or bulk versions of Final-Form
          Pharmaceutical Products (other than Final-Form
          Pharmaceutical Products under development, or being
          manufactured, sold or distributed, by the Business on the
          Closing Date) that may be sold or distributed by third
          parties in the Territory.

                         (b)  For a period of five years after the
          Closing Date, Sellers shall not, and shall cause their
          affiliates not to, solicit to employ any of the current
          management employees of the Business so long as they are
          employed by the Business.

                    Section 6.9  Public Announcements.  A designated
          representative of Purchaser and a designated representative
          of Sellers will consult with each other before issuing any
          press release or otherwise making any public statements
          (other than internal communications with employees) 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 or by applicable rules of any
          securities exchange.

                    Section 6.10  Transition Services; Real Property
          Leases.  Prior to the Closing, Purchaser and one of the
          Sellers or an affiliate designated by Sellers (for the
          purposes of this Section 6.10, each a "Service Provider" or
          a "Lessor," as the case may be) shall negotiate the
          definitive terms of a transition services agreement (the
          "Transition Services Agreement") and certain real property
          leases (the "Real Property Leases").  On the Closing Date,
          the relevant Service Provider or Lessor, shall enter into
          the Transition Services Agreement and the Real Property
          Leases.

                         (a)  Transition Services Agreement.

                              (i)  Prior to the Closing,
               Purchaser and the relevant Service Provider shall
               determine (A) each type of transition service to
               be provided by the relevant Service Provider to
               Purchaser and its affiliates after the Closing and
               (B) the period of time following the Closing that
               each type of transition service is to be provided. 
               From and after the Closing Date, Purchaser shall
               update the relevant Service Provider ten business
               days before the beginning of each calendar quarter
               with respect to its projected future needs for
               each type of transition service for the next year.

                              (ii)  In consideration for such
               transition services, Purchaser, or the applicable
               affiliate of Purchaser, will pay the relevant
               Service Provider an amount equal to such Service
               Provider's costs and expenses, including wages,
               benefits and other actual costs, incurred by such
               entity in connection with the performance of such
               transition services and determined on a basis
               consistent with past practice plus (A) a mark-up
               of 20% during the first year that such services
               are provided after Closing and (B) a mark-up of
               40% thereafter.  

                              (iii)  Insofar as the relevant
               Service Provider requires data, documents,
               information or materials of any nature to be
               furnished by Purchaser and its affiliates or
               requires the cooperation of Purchaser and its
               affiliates or their personnel, Purchaser agrees to
               furnish such items, to provide such cooperation
               and to direct its personnel in such manner as may
               be reasonably necessary in order to assist the
               relevant Service Provider in performing such
               transition services in a prompt manner.  

                              (iv)  The provision of each type of
               transition service pursuant to the Transition
               Services Agreement shall be terminable at
               Purchaser's option at any time upon four months'
               written notice to the relevant Service Provider.

                         (b)  Mexico Lease.  Purchaser intends to
          lease the Cuernavaca site on the following terms:

                              (i)  The term of the lease shall be
               a maximum of five years subject to Purchaser's
               right to terminate the lease at any time upon one
               year's notice to the Lessor thereof.

                              (ii)  Annual rent under the lease
               shall be the Mexican Peso equivalent of $600,000,
               determined as of the second business day prior to
               the Closing Date by reference to a mutually
               agreeable official exchange rate, to be paid on a
               quarterly basis (the "Initial Mexico Rent").  The
               Initial Mexico Rent shall be adjusted semi-
               annually for changes in the Banxico Index or other
               index as mutually agreed between lessee and Lessor
               (the "Adjusted Mexico Rent"); provided, however,
               that should the Banxico Index (or such other
               mutually agreeable index) change by more than 25%
               during the six month period between (x) the date
               upon which the Initial Mexico Rent or Adjusted
               Mexico Rent, as the case may be, is determined and
               (y) the first date or next date, as the case may
               be, upon which the Adjusted Mexico Rent is
               determined, the rent under the lease for such
               period shall be retroactively adjusted as if it
               had been adjusted quarterly rather than semi-
               annually, and subsequent adjustments shall be made
               on a quarterly basis until such time as the change
               in the index during a subsequent six month period
               does not exceed 25% (at which time such
               adjustments shall again be made semi-annually).

                         (c)  Brazil Lease.  Purchaser intends to
          lease the Santo Amaro site on the following terms: 

                              (i)  The term of the lease shall be
               a maximum of four years and nine months subject to
               Purchaser's right to terminate the lease at any
               time upon one year's notice to the Lessor thereof.

                              (ii)  Annual rent under the lease
               shall be the Brazilian Real equivalent of
               $3,500,000, determined as of the second business
               day prior to the Closing Date by reference to a
               mutually agreeable official exchange rate, to be
               paid on a quarterly basis (the "Initial Brazil
               Rent").  The Initial Brazil Rent shall be adjusted
               semi-annually for changes in the ICPR Index or
               other index as mutually agreed between Lessor and
               lessee (the "Adjusted Brazil Rent"); provided,
               however, that should the ICPR Index (or such other
               mutually agreeable index) change by more than 25%
               during the six month period between (x) the date
               upon which the Initial Brazil Rent or Adjusted
               Brazil Rent, as the case may be, is determined and
               (y) the first date or next date, as the case may
               be, upon which the Adjusted Brazil Rent is
               determined, the rent under the lease for such
               period shall be retroactively adjusted as if it
               had been adjusted quarterly rather than semi-
               annually, and subsequent adjustments shall be made
               on a quarterly basis until such time as the change
               in the index during a subsequent six month period
               does not exceed 25% (at which time such
               adjustments shall again be made semi-annually).

                    Section 6.11  Post Closing Services to Sellers. 
          If Sellers or any of their affiliates require assistance in
          connection with any of the Excluded Liabilities after the
          Closing Date, then upon request Purchaser will allow
          reasonable access to employees and records of the Business
          related to such Excluded Liabilities.  Sellers or their
          affiliates will pay Purchaser's costs in providing such
          assistance.

                    Section 6.12  Intercompany Agreements and
          Arrangements.  Sellers shall, and shall cause their
          affiliates to, cancel, effective as of the Closing Date, all
          intercompany agreements or arrangements (including, without
          limitation, intercompany assets and liabilities relating to
          financing activities which shall be paid or repaid, as the
          case may be, prior to Closing) relating to, binding upon or
          affecting the Transferred Subsidiaries or the Designated
          Assets other than those intercompany agreements or
          arrangements that Sellers and Purchaser agree shall remain
          in effect after the Closing.

                    Section 6.13  Notification of Certain Matters. 
          Sellers shall give prompt notice to Purchaser, and Purchaser
          shall give prompt notice to Sellers, of (i) the occurrence,
          or non-occurrence, of any event known to them the
          occurrence, or non-occurrence, of which would be likely to
          cause any representation or warranty contained in this
          Agreement to be untrue or inaccurate and (ii) any failure of
          any party hereto to comply with or satisfy any covenant,
          condition or agreement to be complied with or satisfied by
          it hereunder; provided, that the delivery of any notice
          pursuant to this Section 6.13 shall not limit or otherwise
          affect the remedies available hereunder to the party
          receiving such notice.

                    Section 6.14  Transfer Taxes.  Sellers and
          Purchaser shall share equally all Taxes imposed upon the
          transfer of the Designated Assets to Purchaser (other than
          any such Taxes arising out of or relating to the
          Restructuring).  If a Seller pays a value added tax in any
          jurisdiction in connection with the transactions
          contemplated hereby, and such Seller transfers the benefit
          of such value added tax to Purchaser, upon realization of
          such benefit, Purchaser shall pay to such Seller an amount
          equal to such benefit.

                    Section 6.15  Employee Matters.  Purchaser shall
          cause the Transferred Subsidiaries to offer to continue the
          employment, in comparable positions, of (i) all active
          Employees on the Closing Date or upon the return to active
          employment, in accordance with the provisions of the
          Business' employment policies (as in effect on the date
          hereof), of any Employee who is, on the Closing Date, on
          disability or medical leave or on nonmedical leave, and (ii)
          the employees identified on Schedule 6.15; provided,
          however, that the foregoing shall not obligate Purchaser or
          any Transferred Subsidiary to continue the employment of any
          such Employee or employee for any minimum period of time. 

                    Section 6.16  Name Change.  (a) Within 90 days
          after the Closing, Purchaser shall cause the Transferred
          Subsidiaries to delete "DOW" from their respective company
          names (to the extent such names include "DOW") and within
          the same 90 days initiate any necessary legal filings with
          the appropriate local governmental authority to effectuate a
          name change to, and to thereafter use only,  a new name that
          does not contain DOW or a name confusingly similar to DOW in
          English or any other language.  Within 12 months of the
          Closing or as soon as practicable thereafter with respect to
          matters requiring the action of third parties, Purchaser
          will also cause the Transferred Subsidiaries to replace
          their current names (to the extent such current names
          include DOW) to their new company name on all stationery,
          business cards, real and personal property, directories,
          labels, advertising and promotional material, drug
          registrations and any and all applications, registrations or
          other documents filed or to be filed with international,
          national and local governmental offices, agencies or
          authorities in any country.

                    (b)  Within 90 days after the Closing, Sellers
          shall cause their affiliates to delete "Lepetit" and
          "Merrell" from their respective company names (to the extent
          used therein) and within the same 90 days initiate any
          necessary legal filings with the appropriate local
          governmental authority to effectuate a name change to, and
          to thereafter use only, a new name that does not contain
          Lepetit or Merrell or a name confusingly similar thereto in
          English or any other language.  Within 12 months of the
          Closing or as soon as practicable thereafter with respect to
          matters requiring the action of third parties, Sellers will
          also cause their affiliates to replace their current names
          (to the extent such current names include Lepetit or
          Merrell) to their new Company name on all stationery,
          business cards, real and personal property, directories,
          labels, advertising and promotional material, drug
          registrations and any and all applications, registrations or
          other documents filed or to be filed with international,
          national and local governmental offices, agencies or
          authorities in any country.

                                   ARTICLE VII

                       CONDITIONS TO SELLERS' OBLIGATIONS

                    The obligation of Sellers to effect the Closing
          shall be subject to the satisfaction at or before the
          Closing of each of the following conditions, unless waived
          in writing by Sellers:

                    Section 7.1  Representations and Warranties True. 
          Each of the representations and warranties of Purchaser set
          forth in this Agreement that are qualified as to materiality
          shall be true and correct and each of the representations
          and warranties of Purchaser set forth in this Agreement that
          are not so qualified shall be true and correct in all
          material respects, in each case as of the date hereof and as
          of the Closing Date as if such representations and
          warranties were made at and as of the Closing Date (or, in
          the case of any representation and warranty made as of a
          specified date, as of such date).

                    Section 7.2  Performance.  Purchaser shall have
          performed and complied with all of the covenants and
          agreements required by this Agreement to be performed or
          complied with by it at or prior to the Closing.

                    Section 7.3  No Injunction.  On the Closing Date,
          there shall not be in effect any order, decree or ruling or
          other action restraining, enjoining or otherwise prohibiting
          the transactions contemplated hereby, which order, decree,
          ruling or action shall have been issued or taken by any
          court of competent jurisdiction or other governmental body
          located or having jurisdiction within the United States or
          any country or economic region in which TDCC or any of its
          affiliates, directly or indirectly, has material assets or
          operations.

                    Section 7.4  Waiting Periods.  Any applicable
          waiting periods contemplated by Sections 4.6(b)(i)-(iv) and
          5.3(b)(i)-(iv) shall have expired or been terminated.

                    Section 7.5  Certificates.  Purchaser shall have
          furnished Sellers with such certificates of its officers and
          others to evidence compliance with the conditions set forth
          in this Article VII as may be reasonably requested by
          Sellers.

                    Section 7.6  MMD Acquisition.  Hoechst AG shall
          have acquired, directly or indirectly, shares of common
          stock of MMD representing not less than a majority of MMD's
          outstanding voting power (on a fully diluted basis).

                                  ARTICLE VIII

                      CONDITIONS TO PURCHASER'S OBLIGATIONS

                    The obligation of Purchaser to effect the Closing
          shall be subject to the satisfaction at or before the
          Closing of each of the following conditions, unless waived
          in writing by Purchaser:

                    Section 8.1  Representations and Warranties True. 
          Each of the representations and warranties of Sellers set
          forth in this Agreement that are qualified as to materiality
          shall be true and correct and each of the representations
          and warranties of Sellers set forth in this Agreement that
          are not so qualified shall be true and correct in all
          material respects, in each case as of the date hereof and as
          of the Closing Date as if such representations and
          warranties were made at and as of the Closing Date (or, in
          the case of any representation and warranty made as of a
          specified date, as of such date) 

                    Section 8.2  Performance.  Sellers and the
          Transferred Subsidiaries shall have performed and complied
          with all of the covenants and agreements required by this
          Agreement to be performed or complied with by them at or
          prior to the Closing.

                    Section 8.3  No Injunction.  On the Closing Date,
          there shall not be in effect any order, decree or ruling or
          other action restraining, enjoining or otherwise prohibiting
          the transactions contemplated hereby, which order, decree,
          ruling or action shall have been issued or taken by any
          court of competent jurisdiction or other governmental body
          located or having jurisdiction within France or any country
          or economic region in which Purchaser or any of its
          affiliates, directly or indirectly, has material assets or
          operations.

                    Section 8.4  Waiting Periods.  Any applicable
          waiting periods contemplated under Sections 4.6(b)(i)-(iv)
          and 5.3(b)(i)-(iv) shall have expired or been terminated.

                    Section 8.5  No Material Adverse Change.  There
          shall not have occurred, and Purchaser shall not have become
          aware of any fact that would reasonably be expected to
          result in, a material adverse change in the business,
          results of operations (on an annualized basis) or financial
          condition of the Business, other than (i) the effects of
          currency fluctuations and currency devaluations and (ii) the
          termination of business arrangements with Astra or Connaught
          as a result of the transactions contemplated hereby.

                    Section 8.6  MMD Acquisition.  Hoechst AG shall
          have acquired, directly or indirectly, shares of common
          stock of MMD representing not less than a majority of MMD's
          outstanding voting power (on a fully diluted basis).

                    Section 8.7  Certificates.  Sellers and the
          Transferred Subsidiaries shall have furnished Purchaser with
          such certificates of their officers and others to evidence
          compliance with the conditions set forth in this Article
          VIII as may be reasonably requested by Purchaser.

                                   ARTICLE IX

                            SURVIVAL; INDEMNIFICATION

                    Section 9.1  Survival of Representations and
          Warranties.  All representations and warranties made by
          Sellers in this Agreement shall survive the Closing Date and
          continue for a period of three years from the Closing Date,
          or until the termination and abandonment of this Agreement
          as provided herein; provided, that the representations and
          warranties contained in Section 4.13 shall survive the
          Closing Date and continue until the termination of any
          applicable statute of limitation, the representations and
          warranties contained in Section 4.19 shall survive the
          Closing Date and continue in perpetuity, and the
          representations and warranties contained in Sections 4.22
          and 4.23 shall survive the Closing Date for a period of 10
          years from the Closing Date.  All representations and
          warranties made by Purchaser in this Agreement shall survive
          the Closing Date and continue for a period of one year
          thereafter.  Any right of indemnification pursuant to this
          Article IX with respect to a claimed breach of a
          representation or warranty shall expire at the date of
          termination of the representation or warranty claimed to be
          breached (the "Termination Date"), unless on or prior to the
          Termination Date a Claim (as defined herein) has been made
          to the party from whom indemnification is sought.  Provided
          that a Claim is timely made, it may continue to be asserted
          beyond the Termination Date of the representation and
          warranty to which such Claim relates.  As used in this
          Agreement, a "Claim" means a written notice asserting a
          breach of a representation, warranty, covenant, agreement or
          obligation specified in this Agreement, which shall
          reasonably set forth, in light of the information then known
          to the party giving such notice, a description of and
          estimate (if then reasonable to make) of the amount involved
          in such breach.  The covenants and agreements contained in
          this Agreement shall survive in accordance with their
          respective terms.


                    Section 9.2  General Indemnification.

                         (a)  After the Closing Date, Dow Mexico, Dow
          Argentina and Dow Brazil for themselves and their successors
          (collectively, the "Indemnitors") hereby agree, jointly and
          severally, to defend and, promptly upon the determination of
          the Damages (as defined below) arising from or relating to
          any Claim, to indemnify and hold harmless Purchaser and each
          parent, affiliate, subsidiary (including, after the Closing
          and without limitation, each Transferred Subsidiary),
          director, officer, employee, agent and representative of
          Purchaser (collectively, the "Purchaser Group"), as the case
          may be, from and against all demands, claims, actions or
          causes of action, assessments, losses, damages (including,
          without limitation, consequential and punitive damages),
          liabilities, costs and expenses, including, without
          limitation, interest, penalties and reasonable attorneys'
          fees, disbursements and expenses (collectively, the
          "Damages") asserted against, resulting to, or imposed upon
          or incurred by any member of the Purchaser Group, directly
          or indirectly, by reason of, or resulting from, or which
          constitutes or arises out of: (i) any breach of any
          representation or warranty of Sellers contained in or made
          pursuant to this Agreement (it being understood and agreed
          that for purposes of determining whether a breach has
          occurred for purposes of this Section 9.2(a)(i) and for
          purposes of clause (x) of the proviso in this sentence, all
          materiality exceptions and qualifications to such
          representations and warranties shall be disregarded); (ii)
          any breach of any covenant or agreement of Sellers contained
          in or made pursuant to this Agreement; (iii) all Excluded
          Liabilities set forth in clause (i) of Section 2.3; (iv) all
          Excluded Liabilities set forth in clause (ii) of Section
          2.3; (v) all Excluded Liabilities set forth in clauses (iii)
          and (iv) of Section 2.3; and (vi) all Damages arising out of
          or relating to the conduct of the Business or the ownership
          of the Designated Assets prior to the Closing (other than
          Damages incurred as a result of the matters set forth in
          clause 9.2(a)(iv)); provided, however, that there shall be
          no amount payable by Indemnitors pursuant to their
          indemnification obligations under (x) Sections 9.2(a)(i) and
          9.2(a)(vi) in respect of the first $2 million of Damages
          determined to have been incurred as a result of the matters
          set forth in Sections 9.2(a)(i) and 9.2(a)(vi) by the
          Purchaser Group, after which the members of the Purchaser
          Group shall be entitled to all such Damages so incurred (net
          of insurance proceeds actually received by members of the
          Purchaser Group), but in no event more than an aggregate
          amount equal to $100 million; and (y) Section 9.2(a)(iv) in
          respect of Damages determined to have been incurred as a
          result of the matters set forth in Section 9.2(a)(iv) by the
          Purchaser Group to the extent and in the amount that such
          Damages were reserved for in Schedule 4.7(c) (less any
          amount by which such reserves have been reduced between the
          date of this Agreement and the Closing) or to the extent
          that insurance proceeds are actually received by members of
          the Purchaser Group in respect of such Damages.  If the
          aggregate amount of Damages incurred by the Purchaser Group
          as a result of the matters set forth in Section 9.2(a)(iv)
          prior to the tenth anniversary of the Closing Date is less
          than the amount of reserves shown on Schedule 4.7(c) for
          Damages of the type contemplated by Section 9.2(a)(iv),
          Purchaser shall pay to Sellers, within 30 days following the
          tenth anniversary of the Closing Date, an amount equal to
          the excess of such reserves over such Damages (less any
          amount by which such reserves have been reduced between the
          date of this Agreement and the Closing).  It is understood
          and agreed that following the Closing, Sellers shall control
          the defense of those matters referred to in Section
          9.2(a)(iv) above; provided, however, that Sellers shall not,
          without Purchaser's prior written consent, settle or
          compromise any claim or consent to entry of any judgment
          relating to any such Third Party Claim, which settlement,
          compromise or judgment (A) does not include as an
          unconditional term thereof the giving by the claimant or the
          plaintiff to the Indemnified Party, or its subsidiaries,
          affiliates, directors, officers, employees, agents or
          representatives against whom a Third Party Claim is
          asserted, a release from all liabilities in respect of such
          Third Party Claim or (B) provides for any nonmonetary
          damages which adversely affects the Business. 
          Notwithstanding anything to the contrary set forth herein,
          the Indemnitors are not indemnifying Purchaser with respect
          to liabilities of the Business, if any, relating to the
          products referred to in Sections 6 and 8 of the Insurance
          Agreement.

                         (b)  After the Closing Date, Purchaser hereby
          agrees to defend and, promptly upon the determination of the
          Damages arising from or relating to any Claim, to indemnify
          and hold harmless Sellers and each parent, affiliate,
          subsidiary, director, officer, employee, agent and
          representative of Sellers (collectively, the "Seller
          Group"), as the case may be, from and against all Damages
          asserted against, resulting to, or imposed upon or incurred
          by any member of the Seller Group, directly or indirectly,
          by reason of, or resulting from, or which constitutes or
          arises out of (i) any breach of any representation or
          warranty of Purchaser contained in or made pursuant to this
          Agreement (it being understood and agreed that for purposes
          of determining whether a breach has occurred for purposes of
          this Section 9.2(b)(i) and the proviso below, all
          materiality exceptions and qualifications to such
          representations and warranties shall be disregarded); (ii)
          any breach of any covenant or agreement of Purchaser
          contained in or made pursuant to this Agreement; or (iii)
          all Designated Liabilities; provided, however, that there
          shall be no amount payable by Purchaser pursuant to its
          indemnification obligations under Section 9.2(b)(i) in
          respect of the first $2 million of Damages determined to
          have been incurred as a result of the matters set forth in
          Section 9.2(b)(i) by the Seller Group, after which the
          members of the Seller Group shall be entitled to all such
          Damages so incurred, but in no event more than an aggregate
          amount equal to $100 Million.

                         (c)  Nothing in this Section 9.2 shall be
          construed to affect the rights to reimbursement or
          indemnification under other provisions of this Agreement,
          notwithstanding that the matter for which reimbursement or
          indemnity is sought also constitutes a matter for which an
          indemnity could be sought under this Section 9.2; provided,
          however, that there shall not be any duplication of
          reimbursement or indemnification with respect to any such
          matter.  Any indemnification obligation under this Article
          IX shall be increased such that the indemnification payment
          less any Taxes payable by the indemnified party with respect
          to such indemnification payment equals the Damages giving
          rise to such indemnification payment.

                         (d)   Notwithstanding anything to the
          contrary contained in this Agreement, Indemnitors
          acknowledge and agree that in the event Purchaser assigns,
          sells, transfers or otherwise disposes all or any part of
          the Shares, the Designated Assets or the Business subsequent
          to the Closing, Indemnitors' agreements and obligations to
          reimburse and/or indemnify any member of the Purchaser Group
          pursuant to any provisions of this Agreement, including, but
          not limited to, Section 9.2(a) and Section 9.3 shall
          continue and remain in full force and effect. 

                    Section 9.3  Indemnification for Taxes. 

                         (a)  Certain Defined Terms.  For purposes of
          this Section 9.3, the following terms shall have the
          following meanings (a term not specifically defined herein
          shall have the same meaning as set forth in other sections
          of this Agreement; provided, however, that for purposes of
          this Section 9.3 the term "Taxes" shall have the same
          meaning as defined in Section 4.13 excluding any Taxes
          required to be paid by Purchaser pursuant to Section 6.14):

                              (i)  "Adjusted Reserve Amount"
               means the aggregate reserves for claims for unpaid
               Taxes relating to periods ending on or before
               December 31, 1994 and for the Pre-Closing Short
               Period as shown on the Closing Balance Sheet as
               such reserves for Taxes are adjusted from time to
               time as described below.

                              (ii)  "Audit" includes any audit,
               assessment of Taxes, other examination by any Tax
               Authority (as defined herein), proceeding, or
               appeal of such proceeding relating to Taxes,
               whether administrative or judicial.

                              (iii)  "Pre-Closing Short Period"
               means the taxable period ending on the Closing
               Date.

                              (iv)  "Redetermination" shall mean
               any redetermination of any item of income, gain,
               loss, deduction, or credit or any other item
               affecting the Tax Liability of a Transferred
               Subsidiary for (A) a taxable period ending on or
               before the Closing Date or (B) the portion of the
               taxable year or period through and including the
               Closing Date in the case of any taxable year or
               period which commences before but ends after the
               Closing Date as a result of a final assessment,
               settlement, or compromise with any Tax Authority
               or a judicial decision that has become final.

                              (v)  "Redetermination Date" means
               the date of a Redetermination.

                              (vi)  "Redetermination Tax Loss"
               means any Tax Loss arising from or attributable to
               a Redetermination.

                              (vii)  "Restructuring Tax Loss"
               means any Tax Loss arising from or attributable to
               a Restructuring.

                              (viii)  "Tax Authority" includes
               any federal, state, local, or foreign or other
               governmental authority responsible for the
               administration of any Taxes (domestic, foreign, or
               possessions).

                              (ix)  "Tax Liability" shall mean
               the amount of Taxes due to a Tax Authority for a
               taxable period.

                              (x)  "Tax Loss" means any loss,
               cost or expense (including reasonable attorneys
               fees and costs), and any and all liabilities
               imposed on or incurred by the Purchaser Group in
               respect of any liability for Taxes,  excluding
               consequential damages and salaries of employees of
               the Purchaser Group.

                         (b)  Preparation and Filing of Tax Returns. 
          Sellers shall prepare or cause to be prepared and file all
          Tax Returns for each Transferred Subsidiary with respect to
          all taxable periods ending on or before the Closing Date;
          provided, however, that to the extent the parties agree,
          Sellers shall prepare or cause to be prepared any Tax
          Return, for those jurisdictions that permit a short-period
          Tax Return for the Pre-Closing Short Period.  Purchaser
          shall prepare or cause to be prepared and file all Tax
          Returns for each Transferred Subsidiary with respect to
          taxable periods ending after the Closing Date.  If a taxable
          period commences before but ends after the Closing Date,
          Purchaser shall prepare or cause to be prepared a pro forma
          Tax Return for the taxable period up to and including the
          Closing Date.  Except as may be specifically agreed between
          Sellers and Purchaser, such pro forma Tax Return will be
          prepared in a manner consistent with prior elections,
          accounting practices, accounting methods and conventions. 
          Purchaser shall provide such pro forma Tax Return to Sellers
          for their review and consent (which consent shall not be
          unreasonably withheld).  Except as otherwise required by
          law, Purchaser will incorporate the amounts shown on the pro
          forma Tax Return into each Transferred Subsidiary's
          corresponding Tax Return for the period that commences
          before but ends after the Closing Date.

                         (c)  Indemnification

                              (i)  Redetermination Tax Loss.  The
               Indemnitors shall be responsible for, and shall
               indemnify and hold the Purchaser Group harmless
               from any Redetermination Tax Loss.  No later than
               10 business days after any Redetermination Date,
               Sellers shall determine the difference between the
               Adjusted Reserve Amount and the Redetermination
               Tax Loss.  If the Redetermination Tax Loss exceeds
               the Adjusted Reserve Amount, the amount of such
               excess shall equal the "Redetermination Amount"
               and the Adjusted Reserve Amount shall then equal
               zero.  If the Adjusted Reserve Amount as of the
               Redetermination Date is greater than the
               Redetermination Tax Loss, the Adjusted Reserve
               Amount shall be reduced (but not below zero) by an
               amount equal to the Redetermination Tax Loss and
               no payment shall be made by the Indemnitors to
               Purchaser with respect to such Redetermination Tax
               Loss.

                              (ii)  Restructuring Tax Loss.  The
               Indemnitors shall be responsible for, and shall
               indemnify and hold the Purchaser Group harmless
               from any Restructuring Tax Loss; provided,
               however, that such indemnification shall be
               without duplication of indemnification (including
               any offset to the Adjusted Reserve Amount) of any
               Redetermination Tax Loss arising from or
               attributable to any Restructuring pursuant to
               Section 9.3(c)(i), above.

                              (iii)  Designated Assets and
               Excluded Assets Tax Loss.  The Indemnitors shall
               indemnify and hold the Purchaser Group harmless
               from any Tax Loss arising from or attributable to
               any Tax Liability imposed with respect to the
               Designated Assets (without duplication of the
               Transferred Subsidiaries which are intended to be
               addressed in Section 9.3(c)(i) above) by a Tax
               Authority that is related to the business or
               operations of Sellers for any period ending on or
               before the Closing Date or the portion of the
               taxable year or period through and including the
               Closing Date in the case of any taxable year or
               period which commences before but ends after the
               Closing Date (such amount shall be referred to as
               the "Designated Asset Amount").  The Indemnitors
               shall indemnify and hold the Purchaser Group
               harmless from any Tax Loss arising from or
               attributable to any Tax Liability imposed with
               respect to the Excluded Assets by a Tax Authority
               (such amount shall be referred to as the "Excluded
               Asset Amount"); provided, however, that such
               indemnification shall be without duplication of
               indemnification (including any offset to the
               Adjusted Reserve Amount) of any Redetermination
               Tax Loss or Restructuring Tax Loss with respect to
               the Excluded Assets pursuant to Sections 9.3(c)(i)
               and 9.3(c)(ii), above.

                              (iv)  Tax Benefits.  To the extent
               that Sellers receive a refund from Purchaser
               (pursuant to Section 9.3(g) below) or a Tax
               Authority for any taxable period ending on or
               before the Closing Date or the portion of the
               taxable year or period through and including the
               Closing Date in the case of any taxable year or
               period which commences before but ends after the
               Closing Date, which results in an increased Tax
               Liability to the Purchaser Group, the Indemnitors
               shall promptly pay the amount of such increased
               Tax Liability to Purchaser, but not before such
               increased Tax Liability is incurred.  If a
               Redetermination shall both (A) increase a Tax
               Liability for which Sellers are responsible under
               this Section 9.3 and (B) decrease a Tax Liability
               of the Purchaser Group for any period ending after
               the Closing Date and if such decrease is not taken
               into account in computing the amount of any
               indemnity payment under this Section 9.3, then,
               when and to the extent that the Purchaser Group
               derives a direct benefit from such decrease
               (through a reduction of Taxes, refund of Taxes
               paid or credit against Taxes due), Purchaser shall
               promptly pay to Sellers an amount equal to the
               amount of such reduction, refund or credit, but
               not before (I) the benefit of such reduction is
               realized, (II) the refund is received, or (III)
               the credit is actually utilized; provided,
               however, that such amount shall not exceed the
               amount of the indemnity or refund amount.

                         (d)  Control and Management of Claims. 
          Sellers shall control all Audit, administrative, or judicial
          proceedings relating to any Tax Liability of a Transferred
          Subsidiary for all periods ending on or before the Closing
          Date and shall bear all expenses for such defense. 
          Purchaser shall control all Audit, administrative, or
          judicial proceedings relating to any Tax Liability of a
          Transferred Subsidiary for all periods ending after the
          Closing Date and shall bear all expenses for such defense. 
          Purchaser shall have the sole authority to defend and
          contest a claim made by a Tax Authority on Audit or by
          appropriate claim for refund or credit with respect to
          periods commencing before but ending after the Closing Date;
          provided, however, that Purchaser shall (i) act in good
          faith with respect to Sellers in defending and settling any
          such claim, (ii) not act in a manner that at the same time
          would benefit the Purchaser Group and adversely affect
          Sellers, and (iii) not settle any such claim for which
          Sellers may have liability under this Agreement (a "Sellers
          Matter") without the prior written consent of Sellers which
          consent shall not be unreasonably withheld.  In the event
          Sellers want to contest a Sellers Matter, Sellers may
          request Purchaser's written consent, which consent shall not
          be unreasonably withheld, that Sellers be entitled to
          contest, resolve and defend against any Sellers Matter, at
          Sellers' expense; provided, however, that Purchaser shall
          not be obligated to provide such requested consent, if
          Purchaser determines that (i) Sellers may assert a position
          with respect to such Sellers Matter that is contrary to or
          undermines a position that has been or may be asserted by
          the Purchaser Group with respect to a similar Tax matter or
          (ii) provision of such consent would unreasonably delay or
          hinder the Purchaser Group's resolution of any Audit or
          other Tax matter.  Purchaser shall have the exclusive right
          to file any amended Tax Return or sign any closing agreement
          with respect to  periods commencing before but ending after
          the Closing Date; provided, however,  that Purchaser shall
          not file any such amended Tax Return or sign a closing
          agreement that contains a Sellers Matter without the prior
          written consent of Sellers, which consent shall not be
          unreasonably withheld.

                         (e)  Notification.  Purchaser shall forward
          to Sellers any notice of any pending or threatened Audit or
          other proceeding within 40 days of the Purchaser Group's
          receipt of such notice that may result in any Tax Loss for
          which indemnification may be sought under this Agreement. 
          To the extent that the failure of Purchaser to provide
          notice to Sellers as required by the preceding sentence
          results in an increase of an indemnifiable Tax Loss, the
          amount of Sellers' indemnification obligation under this
          Agreement shall be appropriately reduced to reflect such
          increase.  Sellers shall forward to Purchaser any notice of
          any pending or threatened Audit or other proceeding that
          relates to any Tax period ending after the Closing Date
          within 40 days of the Seller Group's receipt of such notice.

                         (f)  Mutual Cooperation.  Sellers and
          Purchaser shall, and shall cause their respective affiliates
          to, reasonably cooperate with each other in the filing of
          any Tax Return, amendment thereto, or consent contemplated
          by this Agreement and to take such action as such other
          party may reasonably request, including (but not limited
          to):

                              (i)  providing data for the
               preparation of any original or amended Tax Return;

                              (ii)  cooperating fully with each
               other in connection with (A) the preparation and
               filing of any Tax Returns and (B) the exchange of
               information relating to the operations and
               business of Sellers or Purchaser (or any of their
               respective affiliates) which is relevant to
               Sellers or Purchaser in preparing any Tax Returns
               required to be filed by Sellers or Purchaser (or
               any of their respective affiliates), including but
               not limited to, information relating to the
               computation of foreign tax credits of Sellers (or
               any of their affiliates).  Such cooperation shall
               include without limitation, the furnishing or
               making available of records, books of account or
               other materials and access to personnel of Sellers
               or Purchaser (and their respective affiliates)
               necessary or helpful for the preparation of Tax
               Returns or the defense against assertions of any
               Tax Authority as to any Tax Returns, so long as
               such access does not unreasonably interfere with
               the business activities of such personnel.  The
               requesting party shall pay any out-of-pocket
               expenses incurred by the other party;

                              (iii)  cooperating in any Audit of
               Sellers or Purchaser (or any of their respective
               affiliates);

                              (iv)  filing protests or otherwise
               contesting any Audit of Sellers or Purchaser (or
               any of their respective affiliates), including the
               filing of petitions for redetermination or
               prosecuting actions for refund in any court and
               pursuing the appeal of any such actions; and

                              (v)  Retaining and providing books,
               records, documentation or other information
               relating to any Tax Return until the expiration of
               the applicable statute of limitation (giving
               effect to any extension, waiver, or mitigation
               thereof), providing additional information and
               explanation of material provided hereunder, and
               the use of the parties' commercially reasonable
               efforts to obtain any documentation from a
               governmental authority or third party that may be
               necessary or helpful in connection with the
               foregoing.

                         (g)  Refunds.  Purchaser shall pay to
          Sellers, within 10 business days of receipt, any (i) refunds
          received by the Purchaser Group from a Tax Authority with
          respect to a Transferred Subsidiary for all taxable periods
          ending on or before the Closing Date and (ii) the
          appropriate portion of any refunds received by the Purchaser
          Group from a Tax Authority with respect to a Transferred
          Subsidiary attributable to the portion of the taxable year
          or period through and including the Closing Date in the case
          of any taxable period commencing before the Closing Date and
          ending after the Closing Date; provided, however, that
          Purchaser shall not be obligated to pay to Sellers any
          refunds to the extent that the cumulative amount (which
          cumulative amount shall be reduced, but not below zero, to
          reflect such refund) of such refunds are reflected as an
          asset on the Closing Balance Sheet; provided, further
          however, that any payment of such a refund shall not reduce
          or offset any obligation that Sellers or the Indemnitors may
          have under this Agreement.  For purposes of this Section
          9.3(g), if a Redetermination with respect to the portion of
          the taxable year or period through and including the Closing
          Date in the case of any taxable year or period commencing
          before the Closing Date and ending after the Closing Date
          reduces the Tax Liability of a Transferred Subsidiary, such
          reduction shall be treated as a refund to the extent that it
          offsets the Tax Liability of a Transferred Subsidiary for
          the period commencing before but ending after the Closing
          Date.  Sellers shall pay to Purchaser, within 10 business
          days of receipt, any refunds received by the Seller Group
          from a Tax Authority with respect to a Transferred
          Subsidiary attributable to taxable periods other than (x)
          taxable periods ending on or before the Closing Date and (y)
          the portion of the taxable year or period through and
          including the Closing Date in the case of any taxable year
          or period commencing before the Closing Date that ends after
          the Closing Date.

                         (h)  Gross-up.  Whenever, in accordance with
          the provisions of this Section 9.3, the Indemnitors shall be
          required to pay Purchaser an amount in respect of a Tax
          Loss, the amount to be paid shall be an amount that, after
          subtraction of all Taxes payable by the Purchaser Group as a
          result of the receipt or accrual of such amount, shall be
          equal to the amount by which the Taxes payable by the
          Purchaser Group, taking such Tax Loss into account, exceed
          in the aggregate the Taxes that would have been required to
          be paid by the Purchaser Group had such Tax Loss never
          occurred; the indemnity amount shall be determined assuming
          that the Purchaser Group (x) is taxable at the maximum
          marginal Tax rates applicable to the Purchaser Group and (y)
          will have sufficient taxable income to fully utilize all
          deductions and credits that would have been available absent
          the Tax Loss.

                         (i)  Adjusted Tax Reserve Payment.  If, on
          the tenth anniversary of the Closing Date, the aggregate


          amount of claims, proposed adjustments or assessments which
          may result in a Tax Loss for which indemnification may be
          sought under this Agreement is less than the Adjusted
          Reserve Amount, Purchaser shall pay to Sellers the amount by
          which the Adjusted Reserve Amount exceeds such claims,
          adjustments or assessments within 10 business days of such
          anniversary; provided, however, that Purchaser shall pay to
          Sellers the amount of any remaining Adjusted Reserve Amount
          within 10 business days of the fifteenth anniversary of the
          Closing Date.

                         (j)  Indemnity Payments.   Whenever a Tax
          Loss occurs, the Indemnitors shall pay to Purchaser an
          amount equal to the (i) Redetermination Amount, (ii)
          Restructuring Tax Loss, (iii) Designated Asset Amount, plus
          (iv) Excluded Asset Amount hereunder (plus the amount of any
          gross-up with respect to such amount under Section 9.3(h)).

                         (k)  Wire Transfers.  Unless otherwise
          provided for in this Section 9.3, all payments under Section
          9.3 shall be made by wire transfer of immediately available
          funds (in the currency in which the Tax to which such
          payment relates is imposed) no later than 10 business days
          after receipt of a written request therefore.

                    Section 9.4  Third Party Claims.  The obligations
          and liabilities of any of the parties to this Agreement
          under Sections 9.2 and 9.3 hereof with respect to all items
          indemnified against in Sections 9.2 and 9.3 and which are
          initiated by third parties (the "Third Party Claims") will
          be subject to the following terms and conditions:

                         (a)  Upon receipt of written notice of any
          Third Party Claim asserted against, resulting to, imposed
          upon or incurred by any member of the Purchaser Group or the
          Seller Group, as the case may be (the "Indemnified Party"),
          the party receiving such written notice (the "Indemnifying
          Party"), will undertake the defense thereof by counsel of
          its own choosing, which counsel shall be reasonably
          satisfactory to the Indemnified Party, provided that if in
          the Indemnified Party's reasonable judgment a conflict of
          interest may exist between such Indemnified Party and the
          Indemnifying Party with respect to such Third Party Claim,
          such Indemnified Party shall be entitled to select counsel
          of its own choosing, in which event the Indemnified Party
          shall be obligated to pay the fees and expenses of such
          counsel.

                         (b)  If within a reasonable time after
          written notice of any Third Party Claim, the Indemnifying
          Party fails to commence the defense of the Indemnified Party
          against whom such Third Party Claim has been asserted, the
          Indemnified Party will have the right to undertake the
          defense, compromise or settlement of such Third Party Claim
          on behalf of and for the account and at the risk of the
          Indemnifying Party.

                         (c)  Anything in this Section 9.4 to the
          contrary notwithstanding, (i) if there is a reasonable
          probability in the Indemnified Party's judgment that a claim
          may materially and adversely affect the Indemnified Party or
          any of its subsidiaries, affiliates, directors, officers,
          employees, agents or representatives against whom a Third
          Party Claim is asserted other than as a result of money
          damages, the Indemnified Party or any of its subsidiaries,
          affiliates, directors, officers, employees, agents or
          representatives against whom a Third Party Claim is asserted
          will have the right to defend or co-defend and compromise or
          settle (with the consent of the Indemnifying Party, which
          consent shall not be unreasonably withheld) such Third Party
          Claim and (ii) the Indemnifying Party will not, without the
          prior written consent of the Indemnified Party or any of its
          subsidiaries, affiliates, directors, officers, employees,
          agents or representatives against whom a Third Party Claim
          is asserted, settle or compromise any claim or consent to
          entry of any judgment relating to any such Third Party
          Claim, which settlement, compromise or judgment (A) does not
          include as an unconditional term thereof the giving by the
          claimant or the plaintiff to the Indemnified Party, or its
          subsidiaries, affiliates, directors, officers, employees,
          agents or representatives against whom a Third Party Claim
          is asserted, a release from all liabilities in respect of
          such Third Party Claim or (B) provides for any nonmonetary
          damages which adversely affect the Business.

                         (d)  The Indemnifying Party will provide the
          Indemnified Party or any of its subsidiaries, affiliates,
          directors, officers, employees, agents or representatives
          against whom a Third Party Claim is asserted with access to
          all records and documents of the Indemnified Party relating
          to any Third Party Claim.  The Indemnified Party will
          provide the Indemnifying Party with access to all records
          and documents of the Indemnified Party relating to any Third
          Party Claim.

                                    ARTICLE X
                           TERMINATION AND ABANDONMENT

                    Section 10.1  Methods of Termination.  The
          transactions contemplated herein may be terminated and/or
          abandoned at any time but not later than the Closing:

                         (a)  By mutual written consent of Sellers and
          Purchaser; or

                         (b)  By and at the option of Sellers if,
          without fault on the part of Sellers or the Transferred
          Subsidiaries, the Closing shall not have occurred on or
          before January 31, 1996; or 

                         (c)  By and at the option of Purchaser if,
          without fault on the part of Purchaser, the Closing shall
          not have occurred on or before January 31, 1996; or

                         (d)  By and at the option of Sellers or
          Purchaser if there shall be in effect any order, decree or
          ruling or other action permanently restraining, enjoining or
          otherwise prohibiting the transactions contemplated hereby,
          which order, decree, ruling or action shall have (i) been
          issued or taken by any court of competent jurisdiction or
          other governmental body located or having jurisdiction
          within the United States, France or any country or economic
          region in which TDCC, Purchaser or any of their respective
          affiliates, directly or indirectly, has material assets or
          operations and (ii) become final and nonappealable; or

                         (e)  By and at the option of Sellers or
          Purchaser if the Agreement and Plan of Merger, dated as of
          May 3, 1995, by and among TDCC, MMD, Hoechst and H Pharma
          Acquisition Corporation shall have been terminated in
          accordance with its terms; or

                         (f)  Within seven days from the date upon
          which the final Schedule is delivered pursuant to Section
          6.4, by and at the option of Purchaser if such Schedules are
          not satisfactory to Purchaser in its sole discretion.

                    Section 10.2  Effect of Termination.  In the event
          of the termination and abandonment of this Agreement
          pursuant to Section 10.1, this Agreement shall forthwith
          become void and have no effect, without any liability on the
          part of any party hereto, other than the provisions of this
          Section 10.2 and Section 10.3.  Nothing contained in this
          Section 10.2 shall relieve any party from liability for any
          breach of this Agreement.

                    Section 10.3  Expenses.  Except as otherwise
          provided in this Agreement, whether or not the transactions
          contemplated hereby are consummated, all fees and expenses
          in connection with such transactions will be paid by the
          party incurring said fees and expenses.

                                   ARTICLE XI

                            MISCELLANEOUS PROVISIONS

                    Section 11.1  Entire Agreement; Assignment.  This
          Agreement (together with the Schedules hereto), the
          Insurance Agreement and the Confidentiality Agreement (which
          the parties agree shall terminate and be of no further force
          and effect upon the Closing)  (i) constitute the entire
          agreement among the parties hereto with respect to the
          subject matter hereof and supersede all other prior
          agreements and understandings, both written and oral, among
          the parties with respect to the subject matter hereof and
          (ii) shall not be assigned by operation of law or otherwise;
          provided that Purchaser may assign its rights and
          obligations in whole or in part to any affiliate of
          Purchaser (it being understood and agreed that such
          assignment shall not relieve Purchaser from its obligations
          hereunder to the extent such transferee does not perform
          such obligations); provided, further, in the event Purchaser
          assigns, sells, transfers or otherwise disposes all or any
          part of the Shares, the Designated Assets or the Business
          subsequent to the Closing to any person or persons not
          affiliated with Purchaser, Purchaser may, with the prior
          written consent of Sellers (which shall not be unreasonably
          withheld), assign its rights hereunder in whole or in part
          to such person or persons.

                    Section 11.2  Notices.  All notices, requests,
          claims, demands and other communications hereunder shall be
          in writing and shall be given (and shall be deemed to have
          been duly given upon receipt) by delivery in person, by
          facsimile or "overnight" courier service, to the other party
          as follows:


               If to Purchaser:

                         Roussel Uclaf S.A.
                         102, Route de Noisy
                         93235 Romainville Cedex
                         France
                         Fax:  011-331-4991-3916
                         Attention: General Counsel

                    with copies to:

                         Hoechst AG
                         65926 Frankfurt am Main
                         Federal Republic of Germany
                         Fax: 011-49-69-319-113 
                         Attention: Peter Schuster 

                         and

                         Skadden, Arps, Slate, Meagher & Flom
                         919 Third Avenue
                         New York, New York 10022
                         Fax: 212-735-2000
                         Attention: Eileen Nugent Simon

                    If to Sellers:

                         Dow Latin America
                         Chacara Santo Antonio
                         Rua Alexandre Dumas, 1671
                         01065 Sao Paulo, Brazil
                         Fax:  55-11-546-9650
                         Attention:  General Counsel

                    with copies to:

                         The Dow Chemical Company
                         2030 Dow Center
                         Midland, Michigan  48674
                         Fax:  (517) 638-9397
                         Attention:  General Counsel

                         and

                         Mayer, Brown & Platt
                         190 South LaSalle Street
                         Chicago, Illinois  60603-3441
                         Fax:  312-701-7711
                         Attention:  Edward S. Best

          or to such other address as any party shall have designated
          by notice in writing to the other parties.

                    Section 11.3  Governing Law.  This Agreement shall
          be governed by and construed in accordance with the law of
          the State of Delaware, without regard to the principles of
          conflicts of law thereof.

                    Section 11.4  Parties in Interest.  This Agreement
          shall be binding upon and inure solely to the benefit of
          each party hereto and its successors and permitted assigns,
          and nothing in this Agreement, express or implied, is
          intended to or shall confer upon any other person any
          rights, benefits or remedies of any nature whatsoever under
          or by reason of this Agreement, except for the right to any
          indemnification to which members of the Purchaser Group and
          Seller Group may be entitled under Article IX hereof.

                    Section 11.5  Specific Performance.  The parties
          hereto agree that irreparable damage would occur in the
          event that any provision of this Agreement relating to the
          transfer of the Designated Assets or contained in Article VI
          (other than Sections 6.1, 6.2, 6.4, 6.5, 6.9 or 6.10
          thereof) was not performed in accordance with the terms
          thereof and that the parties shall be entitled to specific
          performance of the terms thereof, in addition to any other
          remedy at law or in equity.

                    Section 11.6  Severability.  The provisions of
          this Agreement shall be deemed severable and the invalidity
          or unenforceability of any provision shall not affect the
          validity and enforceability of the other provisions hereof. 
          If any provision of this Agreement, or the application
          thereof to any person or entity or any circumstance, is
          invalid or unenforceable, (a) a suitable and equitable
          provision shall be substituted therefor in order to carry
          out, so far as may be valid and enforceable, the intent and
          purpose of such invalid and unenforceable provision and (b)
          the remainder of this Agreement and the application of such
          provision to other persons, entities or circumstances shall
          not be affected by such invalidity or unenforceability, nor
          shall such invalidity or unenforceability affect the
          validity or enforceability of such provision, or the
          application thereof, in any other jurisdiction.

                    Section 11.7  Extension; Waiver.  Sellers, on the
          one hand, and Purchaser, on the other hand, may (i) extend
          the time for the performance of any of the obligations or
          other acts of the other party, (ii) waive any inaccuracies
          in the representations and warranties of the other party
          contained herein or in any document, certificate or writing
          delivered pursuant hereto, or (iii) waive compliance by the
          other party with any of the agreements or conditions
          contained herein.  Any agreement on the part of any party
          hereto to any such extension or waiver shall be valid only
          if set forth in an instrument in writing signed on behalf of
          such party.  The failure of any party hereto to assert any
          of its rights hereunder shall not constitute a waiver of
          such rights.

                    Section 11.8  Amendment. This Agreement may not be
          amended except by an instrument in writing signed on behalf
          of each of the parties hereto. 

                    Section 11.9  Descriptive Headings.  The
          descriptive headings herein are inserted for convenience of
          reference only and are not intended to be part of or to
          affect the meaning or interpretation of this Agreement.

                    Section 11.10  Certain Definitions.  For purposes
          of this Agreement, the term:

                    (a)  "affiliate" of a person means a person that
          directly or indirectly, through one or more intermediaries,


          controls, is controlled by, or is under common control with,
          the first mentioned person;

                    (b)  "control" (including the terms "controlled
          by" and "under common control with") means the possession,
          directly or indirectly or as trustee or executor, of the
          power to direct or cause the direction of the management
          policies of a person, whether through the ownership of
          stock, as trustee or executor, by contract or credit
          arrangement or otherwise;

                    (c)  "knowledge" with respect to Sellers means the
          knowledge of Sellers and the Transferred Subsidiaries;

                    (d)  "person" means an individual, corporation,
          partnership, association, trust, unincorporated
          organization, other entity or group (as defined in Section
          13(d)(3) of the Securities Exchange Act of 1934); and

                    (e)  "subsidiary" or "subsidiaries" of any person
          means any corporation, partnership, joint venture or other
          legal entity of which such person (either alone or through
          or together with any other subsidiary), owns, directly or
          indirectly, 50% or more of the stock or other equity
          interests the holder of which is generally entitled to vote
          for the election of the board of directors or other
          governing body of such corporation, partnership, joint
          venture or other legal entity.

                    Section 11.11  Counterparts.  This Agreement may
          be executed in two or more counterparts, each of which shall
          be deemed to be an original, but all of which shall
          constitute one and the same agreement.

               IN WITNESS WHEREOF, each of the parties has caused this
          Agreement to be executed on its behalf by its
          representatives thereunto duly authorized, all as of the day
          and year first above written.

                              LATIN AMERICAN PHARMACEUTICAL INC.

                              By:  /s/ Oscar Novo                
                                   Name:  Oscar Novo
                                   Title: President

                              DOW QUIMICA ARGENTINA S.A.

                              By:  /s/ Juan Pedro Ziemke         
                                   Name:  Juan Pedro Ziemke
                                   Title: President

                              DOW QUIMICA MEXICANA S.A.

                              By:  /s/ Victor Bermudez           
                                   Name:  Victor Bermudez
                                   Title: Attorney-in-fact

                              DOW PRODUCTOS QUIMICOS LTDA

                              By:  /s/ John Lillich              
                                   Name:  John Lillich
                                   Title: Attorney-in-fact

                              DOW PRODUCTOS QUIMICOS LTDA

                              By:  /s/ Charles J. Kalil          
                                   Name:  Charles J. Kalil
                                   Title: Attorney-in-fact


                              MINERACAO E QUIMICA DE NORDESTE

                              By:  /s/ John Lillich              
                                   Name:  John Lillich
                                   Title: Attorney-in-fact

                              MINERACAO E QUIMICA DE NORDESTE

                              By:  /s/ Charles J. Kalil          
                                   Name:  Charles J. Kalil
                                   Title: Attorney-in-fact

                              DOW QUIMICA S.A.

                              By:  /s/ Oscar Novo                
                                   Name:  Oscar Novo
                                   Title: President

                              DOW QUIMICA S.A.

                              By:  /s/ Charles J. Kalil          
                                   Name:  Charles J. Kalil
                                   Title: Director

                              MERRELL LEPETIT FARMACEUTICA
                                INDUSTRIAL LTDA

                              By:  /s/ Nelson N. Libbos          
                                   Name:  Nelson N. Libbos
                                   Title: Director

                              MERRELL LEPETIT FARMACEUTICA
                                INDUSTRIAL LTDA

                              By:  /s/ Sergio Rosengarten        
                                   Name:  Sergio Rosengarten
                                   Title: Director


                              LABORATORIOS LEPETIT DE MEXICO S.A. 
                                DE C.V.

                              By:  /s/ Victor Bermudez           
                                   Name:  Victor Bermudez
                                   Title: Attorney-in-fact

                              ROUSSEL UCLAF S.A.

                              By:  /s/ Jean-Pierre Godard        
                                   Name:  Jean-Pierre Godard
                                   Title: President du Directoire




                                                          EXHIBIT 4


          Hoechst Information 
          for the press

                                                        May 4, 1995

          Hoechst signs agreements on acquisition of Marion Merrell
          Dow Jurgen Dormann:  Pharmaceuticals is our largest and most
          important field of activity Worldwide expansion of pharmaceuticals

          FRANKFURT; KANSAS CITY, MISSOURI; MIDLAND, MICHIGAN

          On Thursday, May 4, 1995, the Hoechst Group, Marion
          Merrell Dow Inc. (MMD) and The Dow Chemical Company
          signed the agreements under which Hoechst will acquire
          the whole of MMD.  Hoechst will pay around US $7.1
          billion for this purchase.  Completion of the acquisition
          now depends on the approval of the responsible anti-trust
          authorities in the US and Europe.

          The Hoechst Group's pharmaceutical sales in 1994 amounted
          to DM 10.3 billion.  It employed around 33,500 people in
          this sector.  Hoechst spent more than DM 1.7 billion on
          research and development in the field of new drugs.

          GLOBAL EXPANSION OF THE ACTIVITY WITH THE GREATEST
          STRATEGIC IMPORTANCE

          Hoechst intends to concentrate on its core activities and
          further strengthen its business in the pharmaceutical,
          agricultural and industrial chemical sectors.  The most
          important role in this regard will be played by the
          pharmaceutical business area, which Hoechst intends to
          expand worldwide: from diagnostics and plasma products to
          innovative single-source drugs through to generics.

          With the planned acquisition of Marion Merrell Dow,
          Hoechst wants to further strengthen its position,
          especially in the US, the largest pharmaceutical market
          in the world in terms of volume.

          Hoechst has not up to now succeeded in establishing a
          strong position in North America by its own efforts.  As
          Jurgen Dormann, Chairman of the Board of Management of
          Hoechst AG, put it:  "We therefore need a partner with an
          efficient sales and distribution network, good contacts
          with the FDA, one who can provide us with access to the
          innovative field of biotechnological research in the US,
          a company with strong clinical development in the
          country, who meaningfully complements our own product
          range and is a reputable partner of the large local
          managed care organizations.  Among the new companies that
          could even be considered for an acquisition, Marion is
          the candidate which is best suited."

          MARION - ONE OF THE MOST REPUTABLE SUPPLIERS OF THE
          MANAGED CARE ORGANIZATIONS IN THE US

          Marion is one of the 15 largest pharmaceutical companies
          in the US and one of the most reputable suppliers of the
          large managed care organizations in the country.  With
          9,000 employees, some 1,000 of whom are members of the US
          field force, Marion last year achieved sales of US $ 3.1
          billion and a net profit of US $438 million.  North
          America accounts for 66 percent of sales and Europe and
          the Pacific Region for 17 percent respectively.

          Marion's activities are focused on the key indication
          fields of cardiovascular diseases,
          immunology/rheumatology, diseases of the stomach,
          allergies and diseases of the central nervous system. 
          Expenditure on research and development in 1994 amounted
          to US $462 million.  Marion's indication fields fit well
          into the activities of Hoechst and Roussel.

          "Strategically, bringing these companies together will
          enable us to better serve health care customers and
          millions of patients worldwide," said Fred W. Lyons, Jr.,
          chairman and chief executive officer of Marion Merrell
          Dow.  With a strong commitment to research and
          development, plus organization that is addressing the
          changing needs of health care, we will have the critical
          mass, geographic reach and depth of product line to be
          formidable competitor in the global marketplace."

          COMPANIES COMPLEMENT EACH OTHER IN PRODUCT PORTFOLIO AND
          REGIONAL STRUCTURE

          As Dr. Karl-Gerhard Seifert, Hoechst AG board member
          responsible for pharmaceuticals, emphasized:  "We are
          convinced that the product portfolio and regional
          structure of the companies complement each other well. 
          The considerable synergies will result in a successful
          partnership between Hoechst Roussel and Marion."

          ROUSSEL UCLAF ACQUIRES DOW PHARMACEUTICAL ACTIVITIES IN
          LATIN AMERICA

          Dow has operated its pharmaceutical activities in Latin
          America independently, and has not integrated them into
          Marion.  Dow's pharmaceutical sales in Latin America in
          1994 amounted to around US $ 175 million.  On Thursday it
          was also agreed that Roussel Uclaf will acquire this
          business for a price of US $ 140 million.

          GLOBAL PHARMACEUTICAL BUSINESS WILL BE KNOWN AS HOECHST
          MARION ROUSSEL

          Hoechst's pharmaceutical activities will in future be
          known as Hoechst Marion Roussel.  The entire Hoechst
          Group pharmaceutical business will be headed by Jean-
          Pierre Godard, his deputy will be Richard J. Markham, at
          present the President and Chief Operating Officer of
          MARion Merrell Dow.

          Hoechst Marion Roussel will be sub-divided into four
          geographical regions:  North America, Europe/Africa, Asia
          and Latin America.  The North American pharmaceutical
          business will be based in Kansas City.





                                                          EXHIBIT 5

                      MARION MERRELL DOW INC. LETTERHEAD

                                   N E W S

                                              FOR IMMEDIATE RELEASE
                                        CONTACT:  David M. Thompson
                                              or Richard M. Johnson
                                                     (816) 966-4000

                   COMPANIES ANNOUNCE DEFINITIVE AGREEMENTS
                  FOR HOECHST TO ACQUIRE MARION MERRELL DOW

          FRANKFURT, GERMANY; KANSAS CITY, MO.; and MIDLAND, MI.,
          May 4, 1995 -- Hoechst AG, Marion Merrell Dow Inc. and

          The Dow Chemical Company today announced the signing of
          definitive agreements for Hoechst to acquire all of the
          outstanding shares of Marion Merrell Dow, pending
          regulatory approvals, for a basic price of U.S. $25.75
          per share in cash.  Upon completion, the acquisition will
          expand Hoechst's global pharmaceutical business to annual
          sales of approximately U.S. $10 billion, ranking among
          the world's largest.

          The acquisition is planned in two stages:

               *    Hoechst Corporation, a U.S. subsidiary of
          Hoechst AG, and Dow Chemical signed an agreement for
          Hoechst to purchase from Dow approximately 197 million
          shares of Marion Merrell Dow at a price of U.S. $25.75
          per share, or about U.S. $5.1 billion.  Dow's interest
          amounts to 71 percent of the 277 million shares
          outstanding.
               *    Marion Merrell Dow shareholders will vote on a
          proposal to merge the company with Hoechst Corporation,
          which will result in Marion Merrell Dow becoming a wholly
          owned subsidiary of Hoechst.  As a result of the merger,
          minority shareholders (who currently own approximately 80
          million shares or 29 percent of the stock) will receive
          merger consideration of U.S. $25.75 per share in cash,
          plus an additional pro rata dividend that depends on the
          timing of the closing of the merger.

          GLOBAL PHARMA BUSINESS TO BE KNOWN AS HOECHST MARION
          ROUSSEL

          Following completion of the acquisition, Hoechst will
          conduct its global pharmaceutical business under the name
          Hoechst Marion Roussel.
          The senior leadership of the new company will include
          Jean-Pierre Godard, currently head of Hoechst's
          pharmaceutical division, who will serve as the head of
          pharmaceuticals for Hoechst Marion Roussel, and Richard
          J. Markham, currently president and chief operating
          officer of Marion Merrell Dow, who will assume the
          position of deputy head of pharmaceuticals.

          Hoechst Marion Roussel will be organized into four
          geographic regions to meet customer needs in North
          America, Europe/Africa, Asia and Latin America.  The
          North American business unit will be headquartered in
          Kansas City, Mo.

          NO CAPITAL INCREASE AT HOECHST AG FOR THE LARGEST
          ACQUISITION

          Hoechst's acquisition of Marion will cost a total of
          approximately U.S. $7.1 billion, the largest U.S.
          acquisition to date by a German company.

          The purchase is being financed partly by means of a U.S.
          $2.5 billion capital increase at Hoechst Corporation.  No
          capital increase at Hoechst AG is required for this
          purpose.  This amount is covered by liquid assets
          available within Hoechst.  The remaining sum,
          approximately U.S. $4.6 billion, will be financed by
          Hoechst Corporation through external loans.

          The Hoechst companies are an international network of
          innovative and customer-oriented companies.  Global sales
          totaled DM 49.6 billion (U.S. $30.6 billion) in 1994, and
          Hoechst companies ranked among the leading suppliers in
          the pharmaceutical, agricultural and industrial chemical
          sectors of Europe, the Americas and Asia.

          The current pharmaceutical division, Hoechst Roussel
          Pharma, comprises the pharmaceutical businesses of
          Hoechst AG and Roussel Uclaf S.A., in which Hoechst owns
          a 56 percent share.  Hoechst's pharmaceutical sales last
          year amounted to DM 10.3 billion (U.S. $6.3 billion),
          with about 60 percent of those sales in Europe, employing
          about 33,500 associates worldwide.

          The largest-selling products of Hoechst Roussel Pharma
          are in therapeutic fields such as infections, vascular
          and cardiovascular diseases, and diabetes.  Hoechst
          invested more than DM 1.7 billion (U.S. $1.1 billion)
          last year on research and development of new drugs.

          GLOBAL EXPANSION OF PHARMACEUTICALS HAS GREATEST
          STRATEGIC IMPORTANCE

          Hoechst has embarked on a structural and strategic
          reorientation to concentrate on core activities and
          further strengthen its businesses in the pharmaceutical,
          agricultural and industrial chemical sectors.  The most
          important role will be played by the pharmaceutical
          division, which Hoechst intends to expand worldwide --
          including innovative single-source drugs, diagnostics,
          plasma products and generics.

          With the planned acquisition of Marion Merrell Dow,
          Hoechst particularly seeks to strengthen its position in
          North America.  The United States is not only the largest
          area for pharmaceutical sales -- the U.S. also is where
          the world's standards are set for drug approval and for
          pharmaceutical manufacturing.

          Juergen Dormann, CEO and Chairman of the Board of
          Management of Hoechst AG, said:  "We need a partner with
          a strong North American sales network, contracts with the
          regulatory authorities, access to the innovative field of
          biotechnology research in the United States, a
          complementary product line and a strong clinical research
          effort.  As the health care market grows tougher and more
          competitive, we also want to join with a company that is
          a respected ally of U.S. managed health care
          organizations.  Marion is the best candidate to help us
          achieve these strategic goals."

          MARION: ONE OF THE MOST RESPECTED SUPPLIERS OF HEALTH

          CARE ORGANIZATIONS

          Marion is one of the 15 largest pharmaceutical companies
          in the United States and one of the most respected
          suppliers of the large health care organizations in the
          country.  With approximately 9,000 associates, including
          over 1,000 in its U.S. field sales force, Marion last
          year achieved sales of U.S. $3.1 billion and a net profit
          of U.S. $438 million.  North American sales were 66
          percent of Marion's 1994 sales, Europe was 17 percent and
          the Pacific Region was 17 percent.

          Marion's activities are focused on the therapeutic fields
          of cardiovascular diseases, allergies and respiratory
          disease, gastrointestinal, and diseases of the central
          nervous system.  Expenditure on research and development
          in 1994 amounted to U.S. $462 million.  Marion's
          activities complement those of Hoechst and Roussel well.
          "Strategically, bringing these companies together will
          enable us to better serve health care customers and
          millions of patients worldwide," said Fred W. Lyons, Jr.,
          chairman and chief executive officer of Marion Merrell
          Dow.  "With a strong commitment to research and
          development, plus an organization that is addressing the
          changing needs of health care, we will have the critical
          mass, geographic reach and depth of product line to be a
          formidable competitor in the global marketplace."

          COMPANIES HAVE COMPLEMENTARY PRODUCT PORTFOLIOS, REGIONAL

          STRUCTURE

          As Dr. Karl-Gerhard Seifert, the member of the Hoechst AG
          board who is responsible for pharmaceuticals, emphasized: 
          "We are convinced that the product portfolios and
          regional structures of the companies complement each
          other well.  The considerable synergies will result in a
          successful partnership between Hoechst-Roussel and Marion."

          Dow Chemical has maintained its pharmaceutical activities
          in Latin America independent of Marion.  Hoechst and Dow
          Chemical also agreed today that Roussel Uclaf will
          acquire the Latin American pharmaceutical business, with
          sales of U.S. $175 million, from Dow.

          TRANSITION PROCESS TO BEGIN IMMEDIATELY

          The integration of Marion confronts Hoechst and Roussel,
          and the management of the pharmaceutical division, with a
          demanding task.  The aim of this integration is to
          establish a joint business with a uniform, globally
          responsible management structure that preserves the
          historic strengths of the various companies involved. 

          This integration will be accomplished through a series of
          task forces, with representation from Hoechst's
          pharmaceutical subsidiaries and Marion Merrell Dow.
          The recommendations of the task forces will be reviewed
          by a steering committee chaired by Mr. Dormann.  Mr.
          Lyons will be vice chairman of the committee.

          Announcements on additional management appointments at
          Hoechst Marion Roussel, and the recommendations of the
          various merger transition task forces, will be made as
          appropriate following their review by the steering
          committee.



                                                          EXHIBIT 6


                        INSURANCE SEPARATION AGREEMENT

                    This AGREEMENT, dated as of the 3rd day of May,
          1995, is made by and among The Dow Chemical Company
          ("Dow"), Hoechst Corporation ("Hoechst"), Marion Merrell
          Dow Inc. ("MMD") and Dow's three wholly-owned insurance
          subsidiaries -- Dorinco Reinsurance Company ("Dorinco"),
          Dorintal Reinsurance Ltd. and Timber Insurance Ltd.
          (collectively, the "Dow Insurance Subsidiaries") --
          hereinafter referred to collectively as "the Parties,"
          and shall be binding upon the successors and assigns of
          each.

                    WHEREAS, Dow has, for many years, used the
          combined purchasing power of itself and its subsidiaries
          to purchase insurance to protect Dow and its subsidiaries
          against the risk of certain losses by reason of legal
          liability in the U.S. and elsewhere, thus enabling Dow
          and its subsidiaries to obtain for themselves enhanced
          levels of coverage in return for their premium dollars;

                    WHEREAS, the aforementioned policies of
          insurance purchased by Dow provide coverage to, inter
          alia, the Named Insured, which is defined to include not
          only Dow but also any domestic or foreign corporation
          (not specifically excluded) in which Dow owns, or may
          acquire, directly or indirectly, more than 50% of the
          combined voting power (later revised to 60% or more of
          the combined voting power);

                    WHEREAS, Dow's subsidiaries have shared in the
          purchase costs of the aforementioned policies by paying
          to Dow an allocated share of the total premium based in
          part on the subsidiaries' respective levels of loss
          activity;


                    WHEREAS, Dow acquired a majority voting
          interest in the shares of Merrell Dow Pharmaceuticals,
          Inc. ("MDPI") on or about March 10, 1981, and MDPI
         thereby became a Named Insured under all Dow liability
          insurance policies effective on or after that date;

                    WHEREAS, Dow and its wholly-owned holding
          companies acquired a majority voting interest in the
          shares of MMD on or about December 2, 1989, and MMD
          thereby became a Named Insured under all Dow liability
          insurance policies effective on or after that date;

                    WHEREAS, as part of the transaction in which
          Dow acquired a majority interest in MMD, the shares of
          MDPI were transferred to MMD;

                    WHEREAS, some of the insurance policies
          purchased by Dow contain aggregate limits of liability
          which are reinstated by payment of an additional premium
          by the Named Insured;

                    WHEREAS, some of the insurance policies
          purchased by Dow contain a premium feature which is
          partially retrospective and loss-responsive in nature;
          i.e., the amount of the premium is determined, in part,
          by the amounts paid by the insurer, plus applicable
          reserves established by the insurer;

                    WHEREAS, some of the insurance policies
          purchased by Dow contain a deductible obligation or a
          self-insured retention, whereby the Named Insured must
          pay certain amounts;

                    WHEREAS, the costs of purchasing various types
          of insurance from various companies may be affected by
          loss experience in a variety of ways;

                    WHEREAS, Hoechst has entered into an agreement
          to acquire Dow's stock in MMD and Roussel Uclaf S.A. has
          entered into an agreement to acquire certain Latin
          American pharmaceutical businesses of various Dow
          subsidiaries; 

                    WHEREAS, Hoechst has insurance subsidiaries
          named Hoechst Celanese Insurance Company and Elwood
          Insurance Limited and Hoechst A.G. has an insurance
          subsidiary named Hoechst Versicherungs A.G.
          (collectively, the "Hoechst Insurance Subsidiaries");

                    WHEREAS, the Parties have divergent views and
          interests which they wish to resolve by the agreements
          set forth below concerning their respective obligations
          to make certain payments and bear certain costs,
          including but not limited to reinstatement premiums,
          retrospective premiums, deductibles and retentions, in
          the event claims are made or suits are brought against
          MMD and/or its subsidiaries which are or may be covered
          by various insurance policies purchased by Dow;

                    WHEREAS, the Parties further desire to
          accomplish a partial separation of their insurance
          interests and to attain a degree of certainty about their
          respective rights and obligations with respect to
          insurance coverage and their rights and obligations in
          the event that existing insurance is insufficient to
          cover certain claims against them.

                    NOW, THEREFORE, the Parties hereby agree as
          follows:

                    1.   MMD shall designate its new insurance
          subsidiary ("New Sub") or one of the Hoechst Insurance
          Subsidiaries (with the subsidiary selected being referred
          to herein as "Newco"), which will reinsure the Dow
          Insurance Subsidiaries with respect to all claims made or
          suits brought against MMD and/or its subsidiaries which
          are insured or reinsured, directly or indirectly, by the
          Dow Insurance Subsidiaries under policies identified in
          Appendix A hereto.  The contract of reinsurance to be
          issued by Newco (the "Newco Reinsurance Contract") will
          be in a form commonly accepted in the domestic
          reinsurance industry, written in such manner as to allow
          the Dow Insurance Subsidiaries to take "reinsurance
          credit" on their statutory reports.  The Newco
          Reinsurance Contract will be effective January 1, 1995. 
          Newco shall not be liable under the Newco Reinsurance
          Contract for any sums paid by the Dow Insurance
          Subsidiaries in respect of any of the claims identified
          in Appendix B hereto [DOW To Review],  nor for any sums
          paid by Dorinco prior to January 1, 1995 in respect of
          claims submitted by MMD prior to January 1, 1995.

                    2.   The amount to be paid to Newco by the Dow
          Insurance Subsidiaries as a premium for the reinsurance
          required by paragraph 1 is $45,000,000 payable after the
          execution of the Newco Reinsurance Contract and the later
          of the date Hoechst purchases Dow's stock in MMD as
          contemplated by the Stock Purchase Agreement referred to
          in Paragraph 7(a) hereof (the "Effective Date") or, if
          Newco is New Sub, three business days after notice to the
          Dow Insurance Subsidiaries of receipt by Newco of its
          Certificate of Authority.

                    3.   This Paragraph 3 shall apply only if New
          Sub is designated to be Newco.  Commencing upon receipt
          by New Sub of its Certificate of Authority, Dorinco
          agrees to assist New Sub, at New Sub's election, by
          retroceding to New Sub certain third party reinsurance. 
          Prior to the year-end renewal period, and at other times
          as may be appropriate, Dorinco and New Sub shall meet and
          New Sub shall be given the opportunity to review the
          proposed Dorinco third party book of business.  New Sub
          shall indicate to Dorinco at that time the Dorinco lines
          of third party business, if any, in which it seeks to
          participate by quota share retrocession and the specific
          amount of ceded premiums it wishes to accept on each line
          of third party business; provided, however, that in no
          event shall Dorinco be required to cede more than
          $25,000,000 in premium on all lines of business in the
          aggregate to New Sub.  New Sub shall also provide Dorinco
          such other information as Dorinco may reasonably require
          to determine the nature and extent of New Sub's desired
          level of quota share participation by retrocession in the
          specified lines of third party business.  Dorinco may
          write additional reinsurance on the lines of business
          designated by New Sub and will exercise its reasonable
          best efforts to cede to New Sub the levels of  premiums
          indicated by New Sub on the lines of third party business
          designated by New Sub, with New Sub assuming its quota
          share of premiums, losses and expenses with respect to
          the reinsurance of the selected lines.  Such contracts of
          reinsurance between Dorinco and New Sub will be in a form
          commonly accepted in the domestic reinsurance industry,
          written in such manner as to allow Dorinco to take
          "reinsurance credit" on its statutory reports.  In return
          for the retrocessions provided by Dorinco, New Sub shall
          pay to Dorinco a ceding commission equal to one percent
          of the insurance premiums retroceded to New Sub by
          Dorinco.  Dorinco agrees to provide New Sub with the
          assistance referenced in this Paragraph 3 for an initial
          period of three years commencing from New Sub's receipt
          of its Certificate of Authority, extendable for an
          additional two years upon mutual agreement of Dorinco and
          New Sub.  New Sub shall have the right to cancel all or
          any part of any retrocession from Dorinco, effective at
          the conclusion of any calendar year, provided notice of
          intent to cancel is received by Dorinco at least six
          months in advance.

                    4.   (a)  MMD shall reimburse and indemnify Dow
          for any and all reinstatement premiums, retrospective
          premiums, deductibles, retentions, and any other costs
          incurred and paid by Dow to its insurers under any
          insurance or reinsurance policy issued to Dow prior to
          the Effective Date (including policies issued by Dow
          Insurance Subsidiaries), which result from claims made by
          MMD and/or its subsidiaries; provided, however, that MMD
          shall not be required to reimburse or indemnify Dow
          pursuant to this Paragraph 4 for any amount which will
          otherwise be paid to Dow or its subsidiaries by Newco
          pursuant to the Newco Reinsurance Contract or for costs
          that Dow must pay under Paragraphs 6 through 9 below.

                         (b)  In the event that MMD or one of its
          subsidiaries elects to report a claim or circumstance
          under the 1994-1995 ACE Insurance Company, Ltd. ("ACE")
          insurance policy bearing policy number DOW 5115/4 ("the
          1994-1995 ACE Policy"), with respect to claims by MMD or
          one of its subsidiaries, then MMD agrees to make all Loss
          Recoverable Payments, as defined in the 1994-1995 ACE
          Policy, which result from amounts paid by ACE to MMD or
          one of its subsidiaries.  Except as set forth elsewhere
          in subparagraphs 4(a) and (b), any other premium
          adjustments on insurance policies purchased or renewed by
          Dow on or after the Effective Date shall be the sole
          responsibility of Dow and will not be chargeable to MMD
          or one of its subsidiaries.

                    5.   Dow shall provide MMD with quarterly
          reports indicating any amounts paid by Dow and due from
          MMD pursuant to Paragraph 4.  MMD shall pay Dow any
          undisputed amount specified in any such report within 30
          days of MMD's receipt of any such report.  MMD shall,
          upon reasonable notice to Dow, have the right to audit
          documentation, including relevant invoices and checks,
          supporting such reports.  Any disputes under Paragraph 4
          will be subject to binding arbitration.

                    6.   One of the Dow Insurance Subsidiaries
          (that Dow Insurance Subsidiary is referred to hereafter
          as the "Dow Insurance Subsidiary") will issue an
          insurance policy in form and substance reasonably
          satisfactory to Hoechst, Dow and the Dow Insurance
          Subsidiary, which policy shall include the terms and
          conditions described below, and shall indemnify the
          Covered Entities (as defined below) against Losses (as
          defined below) incurred and paid by the Covered Entities
          in excess of an aggregate of $150 million of Losses
          arising from Claims (as defined below) against Covered
          Entities now-pending or asserted during the fifteen years
          subsequent to the Effective Date resulting from or
          relating to an anti-nauseant drug sold under trademarks
          Bendectin, Debendox, Lenotan,  Merbental and Dectamin
          ("the Bendectin Policy").  It is agreed that any
          expenditures by MMD before the date of this Agreement 
          made on account of Claims resulting from or related to
          Bendectin shall not be "Losses" unless they are included
          on Schedule 6(a).  Such expenditures on Schedule 6(a)
          shall be Losses only to the extent that such expenditures
          are verified by Dow and  not paid by insurance.

                    7.   The Bendectin Policy shall include the
          following terms and conditions:

                         (a)  "Covered Entities" shall include (i)
               Hoechst A.G. and its subsidiaries and affiliates to
               the extent that they own directly or indirectly any
               of the entities or businesses acquired by Hoechst in
               its acquisition of MMD pursuant to the Agreement and
               Plan of Merger, dated as of May 3, 1995, by and
               among Hoechst, H Pharma Acquisition Corp.
               ("Acquisition"), Dow and MMD and the Stock Purchase
               Agreement, dated as of May 3, 1995, by and among
               Hoechst, Acquisition, Dow and certain subsidiaries
               of Dow (the "Stock Purchase Agreement"); (ii)
               Roussel Uclaf S.A. ("Roussel Uclaf") and its
               affiliates and subsidiaries to the extent that they
               own directly or indirectly any of the entities or
               businesses acquired directly or indirectly by
               Roussel Uclaf pursuant to the Purchase Agreement,
               dated May 3, 1995 among Latin American
               Pharmaceutical Inc., Dow Quimica Argentina S.A., Dow
               Quimica Mexicana S.A., Dow Productos Quimicos LTDA,
               Mineracao e Quimica de Nordeste, Dow Quimica S.A.,
               Merrell Lepetit Farmaceutica Industrial LTDA,
               Laboratorios Lepetit de Mexico S.A. de C.V. and
               Roussel Uclaf  (the "LAPG Purchase Agreement");
               (iii) MMD and all of its present and former
               subsidiaries; and (iv) all successors and assigns of
               the entities referred to in clauses (i), (ii) and
               (iii) above; provided, however, that their Claims
               under the Bendectin Policy must relate to the
               products sold prior to the Effective Date under the
               trademarks Bendectin, Debendox, Lenotan, Merbental
               and Dectamin (collectively "Bendectin").

                         (b)  The Bendectin Policy will be subject
               to an aggregate limit of liability of $250 million
               so that the Dow Insurance Subsidiary that issues the
               Bendectin Policy will have no obligation under the
               Bendectin Policy to pay more than $250 million. 
               This limit of liability shall not be reduced by any
               costs or expenses of the Dow Insurance Subsidiaries
               in administration of claims under the Bendectin
               Policy or by salaries or other expenses of employees
               of Dow or the Dow Insurance Subsidiaries.

                         (c)  The Bendectin Policy will be subject
               to a per occurrence limit of $250 million.

                         (d)  "Claims" shall include only those
               claims made by specific individuals (including,
               without limitation, class actions) arising from or
               derived from use of a product (including, without
               limitation, claims of loss of consortium or
               inherited disease or birth or other defect or
               increased risk of disease or birth or other defect
               inherited, directly or indirectly from a user of
               such product).   Subject to the limitations in the
               immediately preceding sentence, "Claims" shall
               include those alleging, without limitation, bodily
               injury, mental and emotional injury (including fear
               of cancer or other disease or defect and increased
               risk of cancer or other disease or defect), as well
               as claims seeking medical monitoring.

                         (e)  "Loss" or "Losses" shall include all
               out-of-pocket payments with respect to settlements,
               compensatory, statutory and punitive damages, and
               hospital and medical expenses, as well as fees,
               costs and expenses of the investigation, adjustment,
               defense and appeal of any Claim.  "Losses" shall not
               include costs or expenses of Covered Entities in
               administration of Claims or salaries of employees of
               the Covered Entities.

                         (f)  Subject to subparagraph 7(j) below,
               beginning on the Effective Date and on each of the
               fourteen subsequent anniversaries of the Effective
               Date, MMD shall pay to the Dow Insurance Subsidiary
               that issued the Bendectin Policy an annual premium
               of $100,000.

                         (g)  Subject to the remainder of this
               subparagraph, the Covered Entities have the sole
               right to control the defense of all Claims.  Before
               the $150 million retention under the Bendectin
               Policy is exhausted, MMD will give notice to and
               consult with Dow and the Dow Insurance Subsidiary
               concerning settlements of Claims arising from or
               related to Bendectin in excess of $5 million.  The
               Covered Entities will not settle any Claims arising
               from or related to Bendectin after the $150 million
               retention under the Bendectin Policy is exhausted
               without the consent of Dow Insurance Subsidiary,
               which will not be unreasonably withheld.  In the
               event that the Covered Entity and the Dow Insurance
               Subsidiary cannot agree on an appropriate settlement
               of the Claim, the matter shall be submitted to
               binding arbitration before a practitioner
               experienced in product liability defense or a
               retired judge, in either case mutually agreeable to
               the Dow Insurance Subsidiary and the Covered Entity. 
               In the event the Dow Insurance Subsidiary and the
               Covered Entity cannot agree upon the selection of an
               arbitrator, the Dow Insurance Subsidiary and the
               Covered Entity shall jointly ask JAMS/Endispute, or
               its successor, to select a qualified arbitrator. 
               The decision of the arbitrator as to the action to
               be taken shall be final and binding on both the Dow
               Insurance Subsidiary and the Covered Entity.

                         (h)  The term "Loss" shall not include any
               payment by the Covered Entities that is actually
               reimbursed by any third party insurer (net of charge
               backs to the Covered Entities of any kind, which
               charge backs shall include, without limitation,
               reinstatement premiums, retrospective premiums,
               deductibles, retentions, any payments by MMD or its
               subsidiaries under paragraph 4 above and any other
               costs incurred to obtain payment under any insurance
               policy) pursuant to insurance in existence on the
               Effective Date (other than the Bendectin Policy or
               insurance that is ceded by the Dow Insurance
               Subsidiaries to Newco under the Newco Reinsurance
               Contract).  The Dow Insurance Subsidiary shall have
               the right to decline to allow a deduction from
               insurance recoveries for the costs of  further
               prosecution by the Covered Entities of an insurance
               coverage action which the Dow Insurance Subsidiary
               deems to be unreasonable; provided, however, that
               this sentence applies only to the extent that the
               fees and costs of such insurance coverage action
               exceed the Covered Entity's recovery.  The Bendectin
               Policy shall be null and void with respect to a
               particular Loss to the extent that such Loss is
               covered and paid (after giving effect to all
               applicable charge backs of the types described
               above) by any insurance other than the Bendectin
               Policy and insurance ceded by Dow or its
               subsidiaries to Newco under the Newco Reinsurance
               Contract.

                         (i)  A Claim relating to conduct of a
               business or entity acquired by any of the Covered
               Entities after the Effective Date, except to the
               extent that such business or entity is or becomes a
               successor or assign of  the liabilities of any of
               the Covered Entities, shall not give rise to a Loss
               under this Agreement or the Bendectin Policy.  In
               connection with any sale or transfer of all or part
               of any of the Covered Entities, the Covered Entities
               in their sole discretion, may assign, in whole or in
               part, the rights to, along with related obligations
               under, the Bendectin Policy to such buyer or
               transferee.

                         (j)  Hoechst shall have the right to
               cancel the Bendectin Policy at any time, in which
               case the Dow Insurance Subsidiary that issued the
               Bendectin Policy shall refund to Hoechst the pro
               rata portion of the $100,000 annual premium
               allocated to the remainder of the policy year, and
               the issuer of the Bendectin Policy shall have no
               further liability or obligation to make any future
               payment of any kind under the Bendectin Policy,
               except with respect to Claims asserted against the
               Covered Entities and noticed to the Dow Insurance
               Subsidiary on or before the date of cancellation.  

                         (k)  The determination of which Dow
               Insurance Subsidiary shall issue the Bendectin
               Policy required by Paragraphs 6 and 7 shall be made
               by Dow and the Dow Insurance Subsidiaries solely in
               their discretion, and Dow shall guaranty the payment
               obligations of the Dow Insurance Subsidiary that
               issues the Bendectin Policy.  If, and only if, the
               full $250 million in coverage available under the
               Bendectin Policy has been paid so that the $250
               million aggregate limit of that policy is exhausted,
               Dow agrees that it then will reimburse the Covered
               Entities for 50% of any additional payments made by
               the Covered Entities for Losses arising from Claims
               against Covered Entities resulting from or related
               to Bendectin which are now-pending or asserted
               within the 15-year period ending on the fifteenth
               anniversary of the Effective Date.

                    8.   Gruppo Lepetit, S.p.A. (with its present
          and former subsidiaries, and all of their successors and
          assigns, referred to herein as "Lepetit") is a subsidiary
          of MMD.  While Dow does not believe that Lepetit has any
          material exposure to Claims (as defined in Paragraph
          7(d)) resulting from its sale or distribution of breast
          implants, in order to facilitate the sale of MMD and its
          subsidiaries to Hoechst and the closing of the LAPG
          Purchase Agreement, Dow will pay to Hoechst or its
          designee, subject to the limitations set forth below, $55
          millon on the Effective Date, which may be used by
          Hoechst for any purpose.  In connection with this
          payment, Hoechst shall establish an account for record-
          keeping purposes only with the following characteristics:

                         (a)  For record of account purposes, the
               initial amount of the account shall be $55 million.

                         (b)  For record of account purposes, the
               account, as adjusted from time to time pursuant to
               subparagraph (c) below, shall bear interest
               compounded annually at an interest rate equal to the
               average yield-to-maturity of a U.S. treasury bond
               with 20 years remaining to maturity in effect as of
               the fifth business day prior to the Effective Date.

                         (c)  For record of account purposes, if
               and when Lepetit has made payments for Losses
               arising from Claims that result from or relate to
               breast implants and that arise from activities of
               Lepetit prior to the Effective Date ("Breast Implant
               Claims"), the account shall be reduced by the amount
               of such payments.  An expenditure will not be a
               payment for purposes of the preceding sentence to
               the extent Lepetit is reimbursed by any third party
               insurance or pursuant to Paragraph 9 hereof (other
               than insurance ceded by the Dow Insurance
               Subsidiaries to Newco under the Newco Reinsurance
               Contract) in existence on the Effective Date (it
               being agreed that any such reimbursement shall be
               reduced by the amount of all applicable charge backs
               of the types referred to in paragraph 7(h) above). 
               There shall be no other deductions from the account.
          Hoechst shall on a yearly basis, beginning one year from
          the Effective Date, give Dow a statement of this account. 
          Dow shall have the right to audit the account on a yearly
          basis.  On the first business day following the twentieth
          anniversary of the Effective Date, Hoechst shall pay Dow
          an amount equal to any balance in the account net of
          reserves established by an actuarial estimate performed
          by a mutually agreed-upon independent actuary with
          respect to each then-pending Claim.  Upon final
          resolution of any Claim for which a reserve has been
          established, an amount equal to the remaining reserve, if
          any, after payment of all Losses applicable to such
          Claim, shall be paid to Dow.  When all such reserved
          Claims have been finally resolved, an amount equal to the
          remaining reserve, if any, shall be paid to Dow
          immediately.  In the event that the total reserve
          established at the end of 20 years proves insufficient to
          cover the total Losses for the open Claims reserved at
          the end of 20 years, Dow shall be obligated to pay to
          Hoechst an amount equal to the deficiency of the reserve
          but in no case more than the amount that was refunded to
          Dow as provided above after the expiration of the twenty
          year period.  In the event that Hoechst receives a
          recovery from an insurer with respect to a Loss or
          portion of a Loss which was previously charged against
          the record account, the amount of such recovery (but not
          to exceed the portion of the Loss previously charged
          against the account) shall be paid to Dow by Hoechst.

                    9.   Dow has in effect a $50 million excess
          insurance policy (Policy No. XLUMB-00167) issued by XL
          Insurance Company, Ltd. ("XL") for the policy year 1993-
          1994 ("the 1993-1994 XL Policy").  Lepetit and MMD are 
          insured under the 1993-1994 XL Policy, and Dow, various
          Dow subsidiaries other than Lepetit and MMD, and Lepetit
          and MMD each believe that they are entitled to coverage
          under the 1993-1994 XL Policy.  Dow shall pay any charges
          required to extend the period for Lepetit to report
          claims resulting from or related to Breast Implant Claims
          under the 1993-1994 XL Policy.  In the event that Dow or
          any of its subsidiaries or affiliates receives any
          payment from XL that reduces limits available to Lepetit
          (and only Lepetit) under the 1993-1994 XL Policy (or any
          successor thereto), Dow shall obtain and maintain, at its
          own expense, insurance from XL, one of the Dow Insurance
          Subsidiaries or any other insurance company under which
          the insurer shall agree to pay to Lepetit any amount
          which would have been payable under the 1993-1994 XL
          Policy (or the applicable successor policy) but for the
          fact that some portion of the $50 million limits
          available under that policy (or the applicable successor
          policy) was depleted by payments by XL (or the successor
          insurer) to Dow or one of its subsidiaries other than
          Lepetit.  Notwithstanding anything provided herein, Dow
          will take all actions and pay all expenses necessary to
          preserve the XL Policy for Lepetit or, at its sole
          option, Dow may obtain from one of the Dow Insurance
          Subsidiaries or any other insurer, and maintain, at its
          own expense, an insurance policy providing Lepetit with
          the same benefits, on the same terms and conditions, as
          the 1993-1994 XL Policy with policy limits reduced from
          $50 million to reflect any amounts already paid to
          Lepetit under the 1993-1994 XL Policy.  Dow shall
          guaranty the payment of any insurer under any policy
          obtained by Dow to satisfy its obligations under this
          Paragraph 9, including the obligations of XL under the
          1993-1994 XL Policy.  Because Dow's obligation under this
          Paragraph 9 shall be to provide Lepetit (through the
          1993-1994 XL Policy or otherwise) a full $50 million of
          coverage, which shall not be reduced except by payments
          to Lepetit, any payment to XL or any successor to XL that
          is necessary under the 1993-1994 XL Policy (or any
          successor policy) to achieve access to the full $50
          million of coverage (less payments to Lepetit),
          including, without limitation, reinstatement or
          retrospective premiums, will be made by Dow.  Dow's
          obligations under this Paragraph 9 shall continue until
          all Claims asserted on or before twenty years from the
          Effective Date have been disposed of or otherwise
          satisfied.  For purposes of  paragraphs 8 and  9, Lepetit
          shall include Gruppo Lepetit, S.p.A. and all of its
          present or former subsidiaries and all of its respective
          successors and assigns.  In connection with any sale or
          transfer of all or part of Lepetit, Lepetit may, in its
          sole discretion, assign, in whole or in part, the rights
          to, along with related obligations under, this Paragraph
          9 to such buyer or transferee.

                    10.  Additional details concerning the agreed-
          upon effects of this Agreement and the sale of MMD and
          its subsidiaries upon certain insurance policies covering
          MMD and its subsidiaries are set forth in Appendix C.  To
          the extent there is any conflict between Appendix C and
          this Agreement, this Agreement shall govern.  The Parties
          agree that Dow shall relinquish any rights it has under
          insurance policies issued to the entities or businesses
          acquired by Hoechst under the Stock Purchase Agreement
          but only with respect to time periods such policies were
          in effect prior to the time such entities or businesses
          were acquired by Dow, including without limitation, such
          pre-acquisition insurance policies issued to Richardson-
          Merrell Inc., Marion Labs Inc., The Rugby Group, Inc. and
          Gruppo Lepetit, S.p.A. and their predecessors.

                    11.  This Agreement does not affect the Covered
          Entities' rights to coverage under any insurance or
          reinsurance policy purchased by Dow which formerly
          provided or currently provides coverage to the Covered
          Entities.  With respect to such policies issued by the
          Dow Insurance Subsidiaries, the Dow Insurance
          Subsidiaries agree that they will continue the practices
          established in the past with respect to such policies. 
          Dow will use reasonable best efforts to assist the
          Covered Entities in presenting and collecting claims
          under policies issued to Dow by third party insurers. 
          Within 90 days of the execution of this Agreement, Dow
          will provide to Hoechst copies of all Dow insurance
          policies which formerly provided or currently provide
          coverage to any of the Covered Entities.  Dow shall on a
          yearly basis give Hoechst a statement indicating the
          status of exhaustion of all such policies and Hoechst
          shall have the right to audit upon reasonable notice to
          Dow.

                    12.  Hoechst, MMD and their subsidiaries will
          exercise their reasonable best efforts to recover any
          insurance which will inure, directly or indirectly, to
          the benefit of Dow or its subsidiaries, including without
          limitation the Dow Insurance Subsidiaries, under this
          Agreement.  This Paragraph shall not be interpreted to
          require the Covered Entities to file or prosecute any
          legal proceedings against their insurers.  In the event
          that a Covered Entity elects not to prosecute a lawsuit
          for such insurance recoveries and Dow elects to pursue
          such an action, the following rules shall apply
          concerning recoveries obtained by Dow:

                         (a)  With respect to recoveries arising
          from Losses resulting from or related to Bendectin:

                              (1)  to the extent that the $150
          Million retention under the Bendectin Policy is not yet
          exhausted, the Covered Entity will receive the recovery,
          net of the fees and expenses paid by Dow in pursuing the
          coverage action and the Covered Entities' $150 Million
          retention under the Bendectin Policy will be increased by
          the same amount;

                              (2)  to the extent that the $150
          Million retention under the Bendectin Policy is exhausted
          and the Dow Insurance Subsidiary has paid the Covered
          Entity the underlying Loss, the Dow Insurance Subsidiary
          will receive the recovery and the Dow Insurance
          Subsidiary will be responsible for all fees and expenses
          of pursuing the coverage action; and

                              (3)  to the extent that the $250
          Million limit of the Bendectin Policy is exhausted and
          Dow has paid the Covered Entity 50 percent of the
          underlying Loss, the Covered Entity will receive 50
          percent of the recovery, net of  50 percent of the fees
          and expenses of pursuing the coverage action, and Dow
          will keep the remainder of the recovery.

                         (b)  With respect to recoveries arising
          from Losses resulting from or related to Breast Implant
          Claims:

                              (1)  to the extent there is still a
          positive balance in the record of account referred to in
          Paragraph 8:  (i) Dow will receive the recovery, (ii) Dow
          will be responsible for all fees and expenses of pursuing
          the coverage action, and (iii) the record of account
          referred to in Paragraph 8 will not be affected by such
          recovery; and

                              (2)  to the extent there is no
          remaining positive balance in the record of account
          referred to in Paragraph 8, Dow shall have no rights to
          pursue the Covered Entities' claims against their
          insurers.

                    13.  The Covered Entities shall have discretion
          concerning the reasonableness of any settlements with
          their third party insurers, which shall be deemed
          reasonable absent a showing of bad faith, except as
          provided elsewhere herein.   With respect to Breast
          Implant Claims only, when a Covered Entity reaches a
          written letter of intent or agreement in principle to
          settle with any of its third party insurers and at the
          time of the settlement there is still a positive balance
          in the record of account referred to in paragraph 8, the
          Covered Entity shall give Dow notice of such letter of
          intent or agreement in principle and 20-days within which
          to approve the settlement or take assignment of the claim
          against such insurer.  If Dow elects to take assignment
          of the claim against such insurer, Dow must, as a
          condition of such assignment, pay the Covered Entity the
          full amount to be paid to the Covered Entity under the
          proposed letter of intent or agreement in principle.  The
          balance in the record of account established under
          paragraph 8 hereto shall be increased by the amount of
          such payment by Dow to the Covered Entity.  Dow will be
          entitled to retain any recoveries it receives from its
          prosecution of such claim against such insurer.  When
          there is no remaining positive balance left in the record
          of account described in paragraph 8 and no outstanding
          insurance recoverables, Dow will have no rights
          concerning settlements proposed by the Covered Entities.

                    14.  This Agreement is a commercial resolution
          of negotiations concerning the separation of complex
          insurance and risk management programs of MMD, Lepetit
          and Dow and its other subsidiaries.  Dow does not believe
          that any party to this Agreement, including Lepetit, has
          any legitimate financial exposure due to sale or
          distribution of breast implants, and nothing in this
          Agreement should be viewed as an admission by Dow of any
          kind.  This Agreement represents a compromise of disputed
          claims and shall not be construed as an admission by any
          party as to the correct interpretation or application of
          any insurance policies purchased by Dow.

                    15.  This Agreement may be executed in
          counterparts.

                    16.  The parties shall not be obligated to
          perform their obligations under this Agreement until the
          Effective Date.  This Agreement shall terminate upon any
          termination of the Stock Purchase Agreement referred to
          in paragraph 7(a) hereof.

                    17.  In connection with entering into this
          Agreement, Dow represents and warrants to Hoechst that,
          on the basis of work performed by and on behalf of Dow in
          response to Hoechst's inquiries regarding the
          distribution of breast implants by Lepetit and otherwise,
          nothing has come to Dow's attention which has led Dow to
          believe that any of the following statements are untrue:

                         (a)  The actual number of breast implants
               manufactured by Dow Corning Corporation which were
               sold in the countries indicated in Schedule 17(a)
               hereto did not exceed in any such country in any
               year indicated therein the number indicated therein
               as having been sold in such country in such year;

                         (b)  Lepetit has not sold or distributed
               any breast implants (i) in Italy since 1992, (ii) in
               Spain or Portugal since 1982 or early 1983 or (iii)
               in any country other than Italy, Spain or Portugal
               since 1977; and

                         (c)  All of the breast implants sold or
               distributed by Lepetit in any of the member
               countries of the European Community were acquired by
               Lepetit from corporations or other business entities
               located or domiciled in member countries of the
               European Community (which corporations and business
               entities acted as the importers of such breast
               implants for purposes of the laws of the applicable
               member countries of the European Community).

                    18.  This Agreement (i) constitutes the entire
          agreement among the Parties hereto with respect to the
          subject matter hereof and supersedes all other prior
          agreements and understandings, both written and oral,
          among the parties with respect to the subject matter
          hereof and (ii) shall not be assigned by operation of law
          or otherwise.

                    19.  All notices, requests, claims, demands and
          other communications hereunder shall be in writing and
          shall be given (and shall be deemed to have been duly
          given upon receipt) by delivery in person, by facsimile
          or by registered or certified mail (postage prepaid,
          return receipt requested), to the other party as follows:

                    if to Hoechst:

                         Hoechst Corporation
                         Route 202-206
                         P.O. Box 2500


                         Somerville, New Jersey  08876-1258
                         Fax: 908-231-4848
                         Attention: Harry R. Benz 

                    with copies to:

                         Hoechst AG
                         65926 Frankfurt am Main
                         Germany
                         Fax: 011-49-69-319-113 
                         Attention: Peter Schuster 

                         and

                         Skadden, Arps, Slate, Meagher & Flom
                         919 Third Avenue
                         New York, New York  10022
                         Fax: 212-735-2000
                         Attentionn:     Roger S. Aaron
                                         and
                                  Franklin M. Gittes

                    if to MMD:

                         Marion Merrell Dow Inc.
                         9300 Ward Parkway
                         Kansas City, Missouri  64114
                         Fax: 816-966-3805
                         Attention: General Counsel

                    with copies to:

                         Shook, Hardy & Bacon PC
                         One Kansas City Place
                         1200 Main Street
                         Kansas City, Missouri  64105-2118
                         Fax: 816-421-5547
                         Attention:     Jennings J. Newcom
                                           and
                                  Randall B. Sunberg

                    if to Dow or the Dow Insurance Subsidiaries:

                         The Dow Chemical Company
                         2030 Dow Center
                         Midland, Michigan  48674
                         Fax:  517-636-0861
                         Attention: Jane M. Gootee

                    with a copy to:

                         Mayer, Brown & Platt
                         190 South LaSalle Street
                         Chicago, Illinois  60603-3441
                         Fax:  312-701-7711
                         Attention:  Scott J. Davis


          or to such other address as the person to whom notice is
          given may have previously furnished to the other in
          writing in the manner set forth above.

                    20.  The representations of Dow set forth in
          Section 17 shall survive indefinitely.

                    21.  This Agreement shall be governed by and
          construed in accordance with the law of the State of
          Delaware, without regard to the principles of conflicts
          of law thereof.  

                    22.  The parties hereto agree that irreparable
          damage would occur in the event any provision of this
          Agreement was not performed in accordance with the terms
          hereof and that the parties shall be entitled to specific
          performance of the terms hereof, in addition to any other
          remedy at law or in equity.

                    IN WITNESS WHEREOF, each of the Parties has
          caused this Agreement to be executed on its behalf by its
          representatives thereunto duly authorized, all as of the
          day and year first above written.

          The Dow Chemical Company           Dorinco Reinsurance
          Company

          By: /s/ John C. Lillich       By:  /s/ Paul D. Brink     
               John C. Lillich                    Paul D. Brink
               Corporate Director of              President
               Mergers & Acquisitions

          Marion Merrell Dow Inc.            Dorintal Reinsurance Ltd.

          By: /s/ Fred W. Lyons, Jr.    By:  /s/ Daniel A. Marino     
               Fred W. Lyons, Jr.                 Daniel A. Marino
               Chairman and Chief                 Assistant Vice 
               Executive Officer                  President



          Hoechst Corporation                Timber Insurance Ltd.

          By: /s/ Harry R. Benz         By:  /s/ Philip M. Roels      
               Harry R. Benz                      Philip M. Roels
               Secretary and Treasurer            Vice President




                                                          EXHIBIT 7


                                                     CONFORMED COPY

                             INDEMNITY AGREEMENT

               This Indemnity Agreement, dated as of May 3, 1995,
          is between Hoechst Corporation, a Delaware corporation
          ("Hoechst"), and The Dow Chemical Company, a Delaware
          corporation ("Dow").

               WHEREAS, Dow directly and indirectly owns
          approximately 71% of the outstanding common stock of
          Marion Merrell Dow Inc., a Delaware corporation ("MMD");

               WHEREAS, at the request of MMD, and pursuant to the
          terms of an Agreement to Provide Guaranty, dated as of
          October 7, 1993 (the "Agreement to Provide Guaranty"),
          between Dow and MMD, Dow entered into a Dow Guaranty,
          dated as of October 8, 1993 (the "Dow Guaranty"), in
          favor of the Investors (as defined in the Dow Guaranty)
          in Carderm Capital L.P., a Delaware limited partnership
          in which subsidiaries of MMD hold a controlling interest;

               WHEREAS, Dow, certain subsidiaries of Dow, Hoechst
          and H Pharma Acquisition Corp. have entered into a Stock
          Purchase Agreement dated as of the date hereof (the
          "Stock Purchase Agreement"), providing for the purchase
          by Hoechst of all of the shares of MMD owned directly or
          indirectly by Dow; and

               WHEREAS, Hoechst and Dow desire to specify certain
          arrangements with respect to the Dow Guaranty.

               NOW, THEREFORE, in consideration of the foregoing
          and the agreements herein contained, and intending to be
          legally bound, Hoechst and Dow agree as follows:

               Section 1.  Capitalized Terms.  Capitalized terms
          used but not defined in this Agreement shall have the
          meanings assigned to such terms in the Stock Purchase
          Agreement.

               Section 2.  Indemnification by Hoechst.   From and
          after the earlier of the purchase by Acquisition of the
          Dow Shares pursuant to the Stock Purchase Agreement and
          the Merger (such earlier date being referred to as the
          "Indemnification Date"), Hoechst shall indemnify and hold
          harmless Dow and each of its subsidiaries, affiliates,
          directors, officers, employees, agents, and
          representatives (collectively, the "Dow Group"), from and
          against all demands, claims, actions or causes of action,
          assessments, losses, damages, liabilities, costs and
          expenses, including, without limitation, interest,
          penalties and attorney's fees, disbursements and expenses
          asserted against, resulting to, or imposed upon or
          incurred by any member of the Dow Group, directly or
          indirectly, resulting from or arising out of the Dow
          Guaranty; provided, that, any payments made by Hoechst to
          Dow pursuant to this Section 2 shall be net of any
          payments made by MMD to Dow pursuant to the Agreement to
          Provide Guaranty.  Nothing herein contained shall, or be
          deemed to, release MMD from its obligations and covenants
          under the Agreement to Provide Guaranty or any other
          agreement relating to Carderm Capital L.P.

               Section 3.  Termination or Substitution of Dow
          Guaranty.  From and after the Indemnification Date,
          Hoechst shall use its reasonable best efforts, at its own
          cost and expense, to terminate the Dow Guaranty or
          substitute Hoechst in Dow's stead under the Dow Guaranty,
          and in any event obtain a full and unconditional release
          of liability of Dow under the Dow Guaranty with the
          consent of the Investors.

               Section 4.  Guaranty Fee.  On the Indemnification
          Date, Dow agrees to pay Hoechst, or its designee, the pro
          rata portion of the guaranty fee paid to Dow.  Hoechst's
          portion of the guaranty fee shall equal the fraction of
          the original $1,113,000 guaranty fee, the numerator of
          which is 2,436 minus the number of whole days from
          October 7, 1993 to the Indemnification Date, and the
          denominator of which is 2,436.

               Section 5.  Governing Law.  This Agreement shall be
          governed by and construed in accordance with the law of
          the State of Delaware, without regard to the principles
          of conflicts of law thereof.  Any suit, action or
          proceeding seeking to enforce any provision of, or based
          on any matter arising out of or in connection with, this
          Agreement or the transactions contemplated by this
          Agreement may be brought against any of the parties in
          the United States District Court for the District of
          Delaware or any state court sitting in the City of
          Wilmington, Delaware, and each of the parties hereby
          consents to the exclusive jurisdiction of such courts
          (and of the appropriate appellate courts) in any such
          suit, action or proceeding and waives any objection to
          venue laid therein.  Process in any such suit, action or
          proceeding may be served on any party anywhere in the
          world, whether within or without the State of Delaware. 
          Without limiting the foregoing, each of the parties
          agrees that service of process upon such party at the
          address referred to below, together with written notice
          of such service to such party, shall be deemed effective
          service of process upon such party.

                    Dow:      The Dow Chemical Company
                              2030 Dow Center
                              Midland, Michigan 48674
                              Attn.:  General Counsel

                    Hoechst:  Hoechst Corporation
                              Route 202-206
                              Somerville, NJ 08876-1258
                              Attn:  Treasurer

               Section 6.  Counterparts.  This Agreement may be
          executed in two or more counterparts, each of which shall
          be deemed to be an original, but all of which shall
          constitute one and the same agreement.



               IN WITNESS WHEREOF, each of the parties has caused
          this Agreement to be duly executed on its behalf by their
          respective authorized representatives as of the day and
          year first above written.

                                        HOECHST CORPORATION

                                        By: /s/ Harry R. Benz         
                                        Name: Harry R. Benz           
                                        Title: Secretary and Treasurer

                                        THE DOW CHEMICAL COMPANY

                                        By: /s/ Enrique C. Falla      
                                        Name:  Enrique C. Falla       
                                        Title: Executive Vice Presi-
                                               dent and Chief Finan-
                                               cial Officer




                                                             EXHIBIT 8



                                                                      

                            TAX ALLOCATION AGREEMENT

                                      Among

                            The Dow Chemical Company

                               Hoechst Corporation

                                       and

                             Marion Merrell Dow Inc.

                             Dated as of May 3, 1995

                                                                      


                                TABLE OF CONTENTS
                                                                  Page

     Section 1.       Certain Defined Terms . . . . . . . . . . .    1
                      Audit . . . . . . . . . . . . . . . . . . .    1
                      Combined Report . . . . . . . . . . . . . . .  2
                      Combined Reporting  . . . . . . . . . . . . .  2
                      Combined Return . . . . . . . . . . . . . .    2
                      Combined Taxes  . . . . . . . . . . . . . .    2
                      Effective Date  . . . . . . . . . . . . . .    2
                      Extended Due Date . . . . . . . . . . . . .    2
                      MMD Member Liability  . . . . . . . . . . . .  2
                      MMD Matter  . . . . . . . . . . . . . . . .    3
                      Non-Federal Taxes . . . . . . . . . . . . .    3
                      Non-Federal Tax Return  . . . . . . . . . .    3
                      Separate Taxable Income . . . . . . . . . . .  3
                      Tax Authority . . . . . . . . . . . . . . . .  4
                      Tax Returns . . . . . . . . . . . . . . . .    4
                      Taxes . . . . . . . . . . . . . . . . . . .    4

     Section 2.       Preparation and Filing of Non-Federal Tax
                      Returns . . . . . . . . . . . . . . . . . .    4
                      2.1.  Non-Federal Tax Returns . . . . . . .    4
                      2.2.  Consistent Preparation of Combined
                            Returns . . . . . . . . . . . . . . .    4
                      2.3   Combined Returns for Periods that Include
                            the Effective Date  . . . . . . . . .    5

     Section 3.       Payment of Taxes  . . . . . . . . . . . . .    5
                      3.1.  Non-Federal Taxes for Combined Returns   5
                      3.2.  True-up; Combined Taxes . . . . . . .    5

     Section 4.       Redetermination . . . . . . . . . . . . . .    6
                      4.1.  Definition of Redetermination . . . .    6
                      4.2.  Redetermination of Non-Federal Taxes     6

     Section 5.       Audits, Disputes, Etc . . . . . . . . . . .    7
                      5.1.  Non-Federal Taxes . . . . . . . . . .    7
                      5.2.  Notification  . . . . . . . . . . . .    7

     Section 6.       Mutual Cooperation  . . . . . . . . . . . .    8

     Section 7.       Resolution of Certain Conflicts . . . . . .    9

     Section 8.       Tax Returns for Periods Beginning on or
                      After the Effective Date  . . . . . . . . .    9

     Section  9.      Other Taxes . . . . . . . . . . . . . . . .    9

     Section 10.      Statute of Limitations. . . . . . . . . . .    9

     Section 11.      Miscellaneous . . . . . . . . . . . . . . .    9
                      a.    Effectiveness . . . . . . . . . . . .    9
                      b.    Entire Agreement  . . . . . . . . . .   10
                      c.    Severability  . . . . . . . . . . . .   10
                      d.    Time of Payment . . . . . . . . . . .   10
                      e.    Governing Law . . . . . . . . . . . .   10
                      f.    Notices . . . . . . . . . . . . . . .   10
                      g.    Modification or Amendment . . . . . .   12
                      h.    Successors and Assigns  . . . . . . .   12
                      i.    No Third-Party Beneficiaries  . . . .   12
                      j.    MMD Payments  . . . . . . . . . . . .   12
                      k.    Hoechst Payments  . . . . . . . . . .   12


          Exhibits

          Schedule 1(h)


               This Tax Allocation Agreement (the "Agreement"), is
          entered into between The Dow Chemical Company, a Delaware
          corporation ("DCC"), Marion Merrell Dow Inc., a Delaware
          corporation ("MMD"), and the Hoechst Corporation, a Delaware
          corporation ("Hoechst") on May 3, 1995.

                                      WITNESSETH:

               WHEREAS, DCC and certain of its affiliates own
          outstanding shares of common stock, par value $0.10 per
          share, of MMD;

               WHEREAS, MMD and its subsidiaries (hereafter
          collectively referred to as the "MMD Group") and DCC and its
          subsidiaries (excluding the MMD Group (or any member
          thereof)) (hereafter collectively referred to as the "DCC
          Group") file certain tax returns on a consolidated,
          combined, or unitary basis;

               WHEREAS, pursuant to the (i) Agreement and Plan of
          Merger, dated as of May 3, 1995 (the "Merger Agreement"),
          among MMD, DCC, Hoechst, and H Pharma Acquisition Corp., a
          Delaware corporation ("Acquisition"), and (ii) Stock
          Purchase Agreement, dated as of May 3, 1995 (the "Stock
          Purchase Agreement"), among Parent, Acquisition, DCC,
          Acquisition Corp., a Delaware corporation and a wholly-owned
          subsidiary of DCC, Dow Holdings Inc., a Delaware corporation
          and a wholly-owned subsidiary of DCC, the DCC Group will
          cease to own any outstanding shares of common stock, par
          value $0.10 per share, of and will cease to file any tax
          returns with the MMD Group (or any members of the MMD Group)
          on a consolidated, combined, or unitary basis for any
          taxable periods beginning after the Effective Date (as
          defined herein); 

               WHEREAS, it is the intent and desire of the parties
          hereto to provide for (i) allocations of certain liabilities
          for Taxes (as defined herein), (ii) the preparation and
          filing of Non-Federal Tax Returns (as defined herein), (iii)
          the payment of Non-Federal Taxes (as defined herein), (iv)
          mutual cooperation provisions, and (v) certain related
          matters:

               NOW, THEREFORE, in consideration of the mutual
          covenants and promises contained herein, the parties hereto
          agree as follows:

               Section 1.  Certain Defined Terms.  For purposes of
          this Agreement, the following terms shall have the following
          meanings:

                    a. "Audit" includes any audit, assessment of Non-
          Federal Taxes, other examination by any Tax Authority (as
          defined herein), proceeding, or appeal of such proceeding
          relating to Non-Federal Taxes, whether administrative or
          judicial.

                    b. "Combined Report" means any Combined Return
          where DCC makes all payments to the appropriate Tax
          Authority on behalf of all members of the MMD Group and the
          DCC Group.

                    c. "Combined Reporting" means any Combined Return
          where the DCC Group and the MMD Group make separate payments
          to the appropriate Tax Authority on each entity's behalf.

                    d. "Combined Return" means any Non-Federal Tax
          Return (including both Combined Reports and Combined
          Reporting) that is filed on a consolidated, combined, or
          unitary basis between or among (i) the MMD Group (or any
          member thereof) and (ii) the DCC Group (or any member
          thereof).

                    e. "Combined Taxes" means all Non-Federal Taxes
          reported and paid on a Combined Return that are imposed on a
          consolidated, combined, or unitary basis with respect to the
          assets, earnings, and/or operations of (i) the MMD Group (or
          any member thereof) and (ii) the DCC Group (or any member
          thereof).

                    f. "Effective Date" means the earlier of the
          consummation of the (i) Merger (as defined in the Merger
          Agreement) pursuant to the Merger Agreement or (ii)
          completion of the acquisition of beneficial ownership of the
          Shares (as defined in the Stock Purchase Agreement) pursuant
          to the Stock Purchase Agreement.

                    g. "Extended Due Date" means with respect to any
          Non-Federal Tax Return (including Combined Returns), the
          extended due date for filing the relevant Non-Federal Tax
          Return.

                    h. "MMD Member Liability" shall equal, for each
          Combined Report, (i) the Separate Taxable Income for each
          member of the MMD Group that is included in a Combined
          Return and has nexus in the jurisdiction for which the
          Combined Return is filed divided by (ii) the sum of the
          Separate Taxable Income for all members of the MMD Group and
          the DCC Group that are included in the Combined Return and
          have nexus in such jurisdiction multiplied by (iii) the
          total Combined Tax for such Combined Report.  Such MMD
          Member Liability described above is consistent with the
          method used in the past in determining such MMD Member
          Liability.  A member of the MMD Group will be determined to
          possess or lack nexus with a state if either (i) such member
          was determined by MMD and DCC to have nexus with the state
          when the Combined Return in question was filed prior to the
          date of the signing of this Agreement or (ii) if a Combined
          Return has not been filed as of the date of signing of this
          Agreement, (a) the member of the MMD Group is listed as
          possessing or lacking nexus with respect to a state on
          Schedule 1(h) attached hereto; provided, however, unless MMD
          and DCC agree that a nexus determination on Schedule 1(h) is
          materially inaccurate pursuant to Wisconsin Department of
          Revenue v. William Wrigley, Jr., Co., 112 S. Ct. 2447 (1992)
          and Pub. L. No. 86-272, or (b) with respect to any state not
          specified on Schedule 1(h), MMD and DCC shall, consistent
          with the past practice used with respect to the states
          listed in Schedule 1(h), determine the presence or absence
          of nexus pursuant to the general application of Wisconsin
          Department of Revenue v. William Wrigley, Jr., Co., 112 S.
          Ct. 2447 (1992) and Pub. L. No. 86-272, unless the state
          determines that such member possesses or lacks nexus with
          the state and such determination is upheld in any
          administrative hearing or Tax litigation or is not being
          contested by MMD or DCC.  A member of the DCC Group will be
          determined to possess or lack nexus with a state in a manner
          that is consistent with past practice and pursuant to the
          general application of Wisconsin Department of Revenue v.
          William Wrigley, Jr. Co., 112 S. Ct. 2447 (1992) and Pub. L.
          No. 86-272, unless the state determines that such member
          possesses or lacks nexus with the state and such
          determination is upheld in any administrative hearing or Tax
          litigation or is not being contested by DCC.

                    i. "MMD Matter" shall have the meaning ascribed
          thereto in Section 5.1 of this Agreement.

                    j. "Non-Federal Taxes" includes all state, local,
          and foreign taxes, charges, fees, levies, imposts, duties,
          or other assessments of a similar nature, including without
          limitation, ad valorem, alternative or add-on minimum,
          capital stock, custom duty, disability, employment,
          environmental, estimated, excise, franchise, governmental
          fee or other like assessment or charge of any kind
          whatsoever, gross receipts, income, license, occupation,
          payroll, premium, profits, property (including real,
          personal, and intangible), registration, sales, severance,
          social security (or similar), stamp, transfer, unemployment,
          use, value-added, windfall profits, withholding, or other
          tax of any kind whatsoever, including any interest, penalty,
          or addition thereto, whether disputed or not.  

                    k. "Non-Federal Tax Return" means any return,
          declaration, statement, report, schedule, certificate, form,
          information return, or any other document (including any
          related or supporting information), including an amended
          return, required to be supplied to, or filed with, a Tax
          Authority with respect to Non-Federal Taxes;

                    l. "Separate Taxable Income" means, for any Non-
          Federal jurisdiction, with respect to each member of the MMD
          Group and the DCC Group, the taxable income allocable to
          such jurisdiction for any taxable year (but in no case less
          than zero), determined without reference to any carrybacks
          or carryforwards of any net operating loss, net capital
          loss, charitable contribution or other item attributable to
          any other taxable period, as determined on a basis that is
          consistent with the manner in which the member of the MMD
          Group and DCC Group's Separate Taxable Income has been
          determined in the past.  If no Combined Return has
          previously been filed with a Tax Authority, the Separate
          Taxable Income shall be determined by DCC in a reasonable
          manner in accordance with its past practice of computing
          Separate Taxable Income in Non-Federal Tax Returns filed
          with other Tax Authorities.  

                    m. "Tax Authority" includes any federal, state,
          local, foreign or other governmental authority responsible
          for the administration of any Taxes (domestic, foreign, or
          possessions).

                    n. "Tax Returns" shall mean Non-Federal Tax
          Returns and all federal tax returns (including federal
          income tax returns);

                    o. "Taxes" shall mean Non-Federal Taxes and all
          federal taxes (including federal income taxes).

               Section 2.  Preparation and Filing of Non-Federal Tax
          Returns.

                    2.1.  Non-Federal Tax Returns.  With respect to
          any Combined Return filed after the Effective Date, DCC
          shall prepare, or cause to be prepared, such Combined Return
          consistent with past practice.  MMD shall provide to DCC all
          finalized and complete information necessary for DCC to
          prepare the Combined Return (including, but not limited to,
          a pro forma federal income tax return) no later than 26 days
          prior to the Extended Due Date of such Combined Return. 
          With respect to each such Combined Return, DCC shall prepare
          a finalized and complete pro forma Combined Return that is
          reasonably acceptable to MMD and suitable for filing with
          the appropriate Tax Authority.  DCC shall submit each pro
          forma Combined Return to MMD, for MMD's review and approval
          (which approval shall not be withheld so long as the
          Combined Return is prepared in accordance with past
          practice), no later than two weeks prior to the Extended Due
          Date.  MMD shall review such pro forma Combined Return
          within one week of receipt of such Combined Return.  Upon
          filing a Combined Return with the appropriate Tax Authority,
          DCC shall provide MMD with a copy of the Combined Return
          that has been filed with the appropriate Tax Authority.  DCC
          shall not file any Combined Return with respect to the Non-
          Federal Taxes of any jurisdiction for which DCC would not
          have filed a Combined Return under its past practice unless
          required to do so by the appropriate Tax Authority.  

                    2.2.  Consistent Preparation of Combined Returns. 
          The Combined Returns described in this Section 2, shall be
          prepared on a basis that is consistent with the manner in
          which such Combined Returns were prepared and filed prior to
          the date hereof, unless a contrary treatment is required by
          law or final or temporary regulation or MMD and DCC
          otherwise agree.  If no Combined Return has previously been
          filed with a Tax Authority, DCC shall prepare, or cause to
          be prepared, the Combined Return in accordance with its past
          practice of preparing, or causing to be prepared, Combined
          Returns with other Tax Authorities.

                    2.3  Combined Returns for Periods that Include the
          Effective Date.  With respect to any Combined Returns that
          include periods after the Effective Date, DCC shall file a
          Combined Return with the appropriate Tax Authority
          reflecting income, gain, loss, deductions or credits of each
          included member of the MMD Group and the DCC Group for the
          period up to and including the Effective Date based on a
          closing of the member of the MMD Group's books on the
          Effective Date.  Each of the members of the MMD Group shall
          prepare and provide to DCC a closing of the books
          computation.  However, if either (i) a specified method is
          mandated by the Tax Authority or (ii) the Tax Authority
          refuses to accept a Combined Return prepared on such a basis
          and requires DCC to include income, gain, loss, deductions
          or credits of any member of the MMD Group in the Combined
          Return on a different basis, such Combined Return or any
          amended Combined Return shall be prepared in accordance with
          such rules. 
            
               Section 3.  Payment of Taxes.

                    3.1.  Non-Federal Taxes for Combined Returns. 
          Consistent with past practice, DCC shall pay, or cause to be
          paid, to the appropriate Tax Authorities all Combined Taxes,
          if any, due and payable for all Combined Reports.  Members
          of the MMD Group shall pay any refunds received from a Tax
          Authority with respect to a Combined Report within 30 days
          of receipt of such refund; provided, however that the
          payment of a refund shall not reduce, or offset any
          obligation that DCC may have under Section 4.2 hereof.

                    3.2.  True-up; Combined Taxes.  Within 90 days
          after the earlier of (i) filing any Combined Report or (ii)
          paying any Combined Tax, DCC shall prepare, or cause to be
          prepared, and submit to each member of the MMD Group a true-
          up calculation, as determined on a basis that is consistent
          with the manner in which such calculations have been
          determined in the past that computes the MMD Member
          Liability calculated pursuant to Section 1(h) of this
          Agreement for such period.  Each member of the MMD Group
          shall promptly review such calculation, and, unless such
          member has any reasonable objections, shall make a cash
          payment to DCC equal to the MMD Member Liability within 20
          days of the receipt of the true-up calculation.

               Section 4.  Redetermination.  

                    4.1.    Definition of Redetermination. In the
          event of any (i) determination by a Tax Authority that any
          member of the DCC Group is required to file a Combined
          Return with any member of the MMD Group for a taxable period
          (where DCC and such member of the MMD Group did not file a
          Combined Return with such Tax Authority for such taxable
          period) or (ii) redetermination of (a) any Tax item of
          income, gain, loss, deduction, or credit or any other item
          affecting the Tax liability of MMD or DCC for any Combined
          Return of any member of the MMD Group or the DCC Group that
          is includable in a Combined Return or (b) the question
          whether a member of the MMD Group or DCC Group has nexus to
          a particular state, all as a result of a final assessment,
          settlement, or compromise with any Tax Authority (including
          any federal adjustment) or a judicial decision that has
          become final (collectively, a "Redetermination"), (i) DCC
          shall recompute (a) the Combined Taxes, (b) the Separate
          Taxable Income of each member of the MMD Group or DCC Group,
          and (c) the MMD Member Liability to take into account such
          Redetermination (ii) DCC shall provide such computations to
          MMD for MMD's review and approval (which approval shall not
          be unreasonably withheld) (iii) MMD shall review such
          computations within five days of receipt of such
          computations, and (iv) upon obtaining MMD's approval, DCC
          shall file, to the extent permitted or required by law, an
          amended Combined Return with the appropriate Tax Authority. 
          Upon filing an amended Combined Return with the appropriate
          Tax Authority, DCC shall provide MMD with a copy of the
          original Combined Return (unless previously provided) and
          the amended Combined Return that has been filed with the
          appropriate Tax Authority.

                    4.2.  Redetermination of Non-Federal Taxes.  If a
          Redetermination results in an increase or decrease in the
          MMD Member Liability calculated pursuant to Section 1(h) of
          this Agreement, each member of the MMD Group shall pay to
          DCC any increase in the MMD Member Liability for such year
          within ninety days of DCC's payment of any additional
          Combined Tax to the appropriate Tax Authority and DCC shall
          pay to each member of the MMD Group any decrease in the MMD
          Member Liability for such year within ninety days of DCC's
          receipt of a refund from the appropriate Tax Authority.  If
          there is no increase or decrease in Combined Taxes as a
          result of the Redetermination or DCC otherwise makes no
          payment or receives no refund from the appropriate Tax
          Authority, MMD or DCC shall make any payment due pursuant to
          Section 4.1 to their respective counterpart within ninety
          days of the Redetermination.

               Section 5.   Audits, Disputes, Etc

                    5.1.    Non-Federal Taxes.  DCC shall have the
          sole authority to defend and contest a claim made by a Tax
          Authority on Audit or by appropriate claim for refund or
          credit of Combined Taxes with respect to any Combined
          Returns; provided, however, that DCC shall (i) act in good
          faith with respect to the MMD Group in defending and
          settling a claim, (ii) not act in a manner that at the same
          time would benefit DCC (or any of its affiliates) and
          adversely affect the MMD Group, and (iii) not settle any
          Non-Federal Tax matter for which MMD may have liability
          under this Agreement ("MMD Matter") without the prior
          written consent of MMD, which consent shall not be
          unreasonably withheld.  In the event MMD wants to contest a
          MMD Matter, MMD may request DCC's written consent, which
          consent shall not be unreasonably withheld, that MMD be
          entitled to contest, resolve and defend against any MMD
          Matter, at MMD's expense; provided, however, that DCC shall
          not be obligated to provide such requested consent, if DCC
          determines that (i) MMD may assert a position with respect
          to such MMD Matter that is contrary to or undermines a
          position that has been or may be asserted by DCC with
          respect to a similar Non-Federal Tax matter or (ii)
          provision of such consent would unreasonably delay or hinder
          DCC's resolution of any Audit or other Non-Federal Tax
          matter.  DCC shall have the exclusive right to file any
          amended Combined Return or sign a closing agreement;
          provided, however, that DCC shall not file any such amended
          Combined Return or sign a closing agreement that contains a
          MMD Matter without the prior written consent of MMD, which
          consent shall not be unreasonably withheld.  However,
          nothing herein shall (i) entitle MMD to interfere with DCC's
          right to take any actions it deems appropriate in connection
          with the disposition of any proposed adjustments on Tax
          Returns filed by DCC (other than Combined Returns, but
          including, but not limited to, federal Tax Returns) or (ii)
          entitle DCC to interfere with MMD's right to take any
          actions it deems appropriate in connection with the
          disposition of any Tax Returns filed by MMD (including, but
          not limited to, federal Tax Returns).  

                    5.2.  Notification.  The parties shall forward to
          their respective counterpart any notice of any pending or
          threatened Audit (including any federal audit) or other
          proceeding within 20 days of the party's receipt of such
          notice that may affect such counterpart's liability for
          Taxes.  The parties shall promptly notify their respective
          counterpart of any proposed adjustment of any item on any
          Tax Return within 20 days of receipt of notice of the
          proposed adjustment if such proposed adjustment may affect
          the Tax liability of the counterpart.  The parties shall
          advise the other party of the status of any conferences,
          meetings and proceedings with Tax Authorities or appearances
          before any court pertaining to such adjustment or
          adjustments on any Combined Return or any other Tax Return
          that may affect the Tax liability of the other party and
          shall advise the other party of the outcome of such
          proceedings.  

               Section 6.  Mutual Cooperation.  DCC and MMD (or any
          subsidiaries or successors of such entities) shall cooperate
          with each other in the filing of any Tax Return, amendment
          thereto, or consent contemplated by this Agreement and to
          take such action as such other party may reasonably request,
          including (but not limited to):

                    a. providing data for the preparation of any
          original or amended Tax Returns;

                    b. cooperating fully with each other in connection
          with (i) the preparation and filing of any Combined Returns,
          (ii) the computation of the MMD Member Liability (including
          adjustments to the MMD Member Liability as a result of
          Redetermination), and (iii) the exchange of information
          relating to the operations and business of the MMD Group or
          the DCC Group which is relevant to the MMD Group or the DCC
          Group in preparing any Tax Returns required to be filed by
          DCC or MMD (or any of their respective affiliates),
          including, but not limited to, information relating to (a)
          intercompany loans between the MMD's subsidiaries and DCC or
          its subsidiaries that trigger United States federal income
          tax under the Internal Revenue Code, and require DCC to
          provide detailed information on the sourcing of interest
          payment by MMD subsidiaries and (b) the calculations of the
          research and development credit for MMD which is currently
          calculated as part of the DCC credit.  Such cooperation
          shall include, without limitation, the furnishing of or
          making available of records, books of account or other
          materials and access to personnel of MMD and DCC (and their
          affiliates) necessary or helpful for the preparation of Tax
          Returns or the defense against assertions of any Tax
          Authority (including any federal tax authority) as to any
          Tax Returns, so long as such access does not unreasonably
          interfere with the business activities of such personnel. 
          The requesting party shall pay any out-of-pocket expenses
          incurred by the other party but will not compensate the
          other party for other expenses, including time spent by
          employees of the other party assisting the requesting party;

                    c. cooperating in any Audit (including any federal
          audit), including the execution of limited powers of
          attorney that do not permit the entry into of any settlement
          agreement, unless otherwise mutually agreed to by the
          parties;

                    d. filing protests or otherwise contesting any
          Audit (including any federal audit), including the filing of
          petitions for redetermination or prosecuting actions for
          refund in any court and pursuing the appeal of any such
          actions;

                    e. retaining and providing on demand books,
          records, documentation or other information relating to any
          Tax Return until the expiration of the applicable statute of
          limitation (giving effect to any extension, waiver, or
          mitigation thereof), providing additional information and
          explanation of material provided hereunder, and the use of
          the parties' commercially reasonable efforts to obtain any
          documentation from a governmental authority or third party
          that may be necessary or helpful in connection with the
          foregoing.

               Section 7.  Resolution of Certain Conflicts.  In the
          event that DCC and MMD cannot agree on the calculation of
          any MMD Member Liability, Separate Taxable Income, or other
          amount covered by this Agreement, DCC and MMD will engage an
          independent, certified public accounting firm of national
          reputation, reasonably acceptable to each party, to make
          such calculation and the decision of such firm will be
          conclusive.  Such calculation shall be made in accordance
          with the terms of this Agreement and past practice between
          DCC and MMD.  The cost of such engagement will be borne
          solely by the party that does not prevail in substantial
          part in the determination of the firm that is engaged;
          provided, however, that if such firm determines that neither
          party prevailed in substantial part, the cost of such
          engagement shall be shared equally by DCC and MMD.

               Section 8.  Tax Returns for Periods Beginning on or
          After the Effective Date.  Except as where required by law,
          DCC shall not prepare any Combined Returns or file any
          Combined Returns with a Tax Authority for Tax periods
          beginning on or after the day after the Effective Date.

               Section  9.  Other Taxes.  To the extent DCC pays any
          Taxes (including, but not limited to payroll taxes, but
          other than Taxes specifically covered by another section of
          this Agreement) on behalf of the MMD Group for any period up
          to and including the Effective Time, DCC will continue to
          rebill the MMD Group for any Taxes paid on behalf of such
          members and such members of the MMD Group agree to make
          payments to DCC of such amounts within twenty days of the
          receipt of such bill and supporting documentation including
          a written explanation reasonably satisfactory to MMD.

               Section 10.  Statute of Limitations.  MMD, and each
          member of the MMD Group, agrees to extend the statute of
          limitations on any Combined Returns to the extent requested
          by DCC.

               Section 11.  Miscellaneous.

                    a. Effectiveness.  This Agreement will be
          effective as of the Effective Date. 

                    b. Entire Agreement.  Except as provided in the
          Merger Agreement, this Agreement contains the entire
          agreement among the parties hereto with respect to the
          subject matter hereof and supersedes all prior agreements
          with respect to such subject matter.

                    c. Severability.  In case any one or more of the
          provisions contained in this Agreement should be invalid,
          illegal or unenforceable, the enforceability of the
          remaining provisions hereof will not in any way be effected
          or impaired thereby.

                    d. Time of Payment.  Any payment required to be
          made under this Agreement for which the terms of payment are
          not specifically provided elsewhere in this Agreement shall
          be paid within 90 days following the date on which the
          amount of the underlying liability to which such payment
          relates is paid.  Any amount required to be paid under this
          Agreement, which is not paid by the end of such 90-day
          period, will thereafter bear interest at the 90-day London
          Interbank Offered Rate plus 50 basis points from the date of
          such payment to the appropriate Tax Authority to the date of
          full payment to the appropriate party hereunder.

                    e. Governing Law.  This Agreement shall be
          governed by and construed in accordance with the law of the
          State of Delaware, without regard to the principles of
          conflicts of law thereof.

                    f. Notices.  All notices, requests, claims,
          demands and other communications hereunder shall be in
          writing and shall be given (and shall be deemed to have been
          duly given upon receipt) by delivery in person, by facsimile
          or by registered or certified mail (postage prepaid, return
          receipt requested), to the other party as follows:

                    if to MMD or a member of the MMD Group:

                     Marion Merrell Dow Inc.
                     9300 Ward Parkway
                     Kansas City, Missouri 64114
                     Fax: (816) 966-3235
                     Attention: Kevin M. Hartley (Tax Department)

                    with a copy to:

                     Hoechst Celanese Corporation
                     Route 202-206
                     P.O. Box 2500
                     Somerville, New Jersey 08876-1258
                     Fax:  908-231-4811
                     Attention:  John M. Kacani
                                 Vice-President Taxes

                    and a copy to:

                     Skadden, Arps, Slate, Meagher & Flom
                     1440 New York Ave., N.W.
                     Washington, D.C. 20005
                     Fax:  202-393-5760
                     Attention:  J. Phillip Adams
                                   and
                                 Clifford R. Gross

                    and a copy to:

                     Shook, Hardy & Bacon PC
                     One Kansas City Street
                     1200 Main Place
                     Kansas City, Missouri 64105-2118
                     Fax: 816-421-5547
                     Attention:  Richard D. Martinson


                    if to DCC, to:

                     The Dow Chemical Company
                     2030 Dow Center
                     Midland, Michigan 48674
                     Fax: 517-636-5850
                     Attention: Dorra Bost (Tax Department)  

                    with a copy to:

                     Mayer, Brown & Platt
                     190 South LaSalle Street 
                     Chicago, Illinois 60603-3491
                     Fax: 312-707-7711
                     Attention:  Scott J. Davis
                                   and
                                 Timothy C. Sherck

          or to such other address as the person to whom notice is
          given may have previously furnished to the other in writing
          in the manner set forth above.

                    g. Modification or Amendment.  This Agreement may
          not be modified or amended without the prior written consent
          of DCC, Hoechst, and MMD.

                    h. Successors and Assigns.  A party's rights and
          obligations under this Agreement may not be assigned or
          delegated without the prior written consent of the other
          party.  All of the provisions of this Agreement will be
          binding upon and inure to the benefit of the parties and
          their respective successors and permitted assigns.

                    i. No Third-Party Beneficiaries.  This Agreement
          is solely for the benefit of the parties to this Agreement
          and should not be deemed to confer upon third parties any
          remedy, claim, liability, reimbursement, claim of action or
          other right in excess of those existing without this
          Agreement.

                    j. MMD Payments.  To the extent that any member of
          the MMD Group fails to make any payments due to DCC provided
          under the terms of this Agreement on a timely basis, MMD
          shall become liable for such payments and will make such
          payments pursuant to the terms of this Agreement. 

                    k. Hoechst Payments.  To the extent that MMD fails
          to make any payments due to DCC provided under the terms of
          this Agreement on a timely basis, Hoechst shall become
          liable for such payments and will make such payments
          pursuant to the terms of this Agreement.

               IN WITNESS WHEREOF, the parties hereto have duly
          executed this Agreement as of the date first written above.

                                    The Dow Chemical Company

                                    By:  /s/ Charles J. Hahn   

                                    Title: Tax Director and    
                                           Asst. Secretary     


                                    Date:     May 3, 1995       

                                    Marion Merrell Dow Inc.

                                    By: /s/ Charles D. Dalton    

                                    Title:   Vice President      

                                    Date:     May 3, 1995        

                                    Hoechst Corporation

                                    By: /s/ Harry R. Benz         

                                    Title: Secretary and Treasurer

                                    Date:    May 3, 1995          




                                                          EXHIBIT 9


               COMPUTERIZED PROCESS CONTROL SOFTWARE AGREEMENT

                            (LEASES AND SERVICES)

               This lease and service agreement, hereinafter

          "Agreement," is made and entered into effective May 3,
          1995, by and between ROFAN SERVICES INC. (hereinafter

          "Lessor") and MERRELL DOW PHARMACEUTICALS INC.
          (hereinafter "Lessee"), located at:

          LESSOR:             ROFAN SERVICES INC.
          Address:            2030 Willard H. Dow Center
                              Midland, MI  48674

          Corporation of:     State of Delaware
          Authorized leasing representative for MOD5 SYSTEMS.

          LESSEE:             MERRELL DOW PHARMACEUTICALS INC.
          Address:            2110 E. Galbraith Road
                              Cincinnati, OH  45215

               Lessor and Lessee hereby agree this Agreement

          consists in its entirety of this executed covering
          document and the following attachments:

               APPENDIX A - SERVICE AGREEMENT

               APPENDIX B - MOD5 SPECIAL SERVICE ADDENDUM
               SCHEDULE 1 - LEASED MOD5 SOFTWARE

               Lessor agrees to lease to Lessee and Lessee agrees
          to lease from Lessor in accordance with the terms and
          conditions of this Agreement MOD5 SOFTWARE as delineated
          in Schedule 1 to integrally generate, transmit and manage
          process control at the PLANTS listed in Schedule 1
          attached hereto and made a part hereof.  This Agreement
          constitutes the entire understanding between Lessee and
          Lessor pertaining to all MOD5 SOFTWARE for Lessee's
          PLANTS and supersedes any prior or contemporaneous
          agreements and all negotiations, representations and
          proposals written or oral pertaining to this subject.

          1.   Definitions

               Terms used in this Agreement shall have the meanings
          ascribed to them as follows:

          1.1  Software Definitions


               (a)  MOD5 SOFTWARE means (1) MOD5 CAN SOFTWARE, (2)
          SERIAL GRAPHICS SOFTWARE, and (3) GPI based on specially
          designed, direct digital control, redundant computer
          technology to provide process control and process
          operation information for execution on MOD5 HARDWARE.

               (b)  MOD5 SYSTEM is a specific implementation of
          MOD5 HARDWARE and MOD5 SOFTWARE in a PLANT.  Within a
          given PLANT there may be one or more MOD5 SYSTEMS.

               (c)  MOD5 CAN SOFTWARE means MOD5 OVERHEADS
          including associated FIRMWARE, DOWTRAN SUPPORT TOOLS, and
          MOD5 COMPILER.

               (d)  FIRMWARE is a physical means containing
          electronically retrievable information pertaining to MOD5
          SOFTWARE.

               (e)  INTERFACE PROCESSOR is a functional
          interconnection within a system between the MOD5
          OVERHEADS and other MOD5 SOFTWARE, which contains
          hardware, dedicated executable software, and FIRMWARE.

               (f)  DOWTRAN is a specific language designed for the
          process control supplication engineer to convert and
          express the CONTROL SCHEMA into an APPLICATION PROGRAM
          for a manufacturing process.  The APPLICATION PROGRAM is
          further transformed into COMPILED DOWTRAN using a MOD5
          COMPILER.

               (g)  MOD5 OVERHEADS means the redundantly deployed,
          executable operating system software and, optionally,
          protocol use rights, for the MOD5 COMPUTER that executes
          the COMPILED DOWTRAN and implements diagnostics, inputs,
          outputs, alarms and event logging.

               (h)  DOWTRAN SUPPORT TOOLS are utility programs
          which execute on the MINICOMPUTER to assist the
          application engineer in writing the APPLICATION PROGRAM
          in DOWTRAN.

               (i)  APPLICATION PROGRAM is the set of sequential
          human readable representations of the evolving CONTROL
          SCHEMA in DOWTRAN, where the set is designated with an
          essentially consistent logical identifier.

               (j)  COMPILED DOWTRAN is the set of respective
          sequential instances of machine readable code,
          redundantly deployed, which results from the compilation
          process executed by the MOD5 COMPILER to convert the
          APPLICATION PROGRAM written in DOWTRAN into said machine
          readable code.

               (k)  CONTROL SCHEMA comprises the entire collection
          of concepts, process dynamics and control models, and
          associated decision models which are referenced to define
          the APPLICATION PROGRAM.

               (l)  MOD5 COMPILER is a computer program which
          executes on the MINICOMPUTER to produce COMPILED DOWTRAN
          from the APPLICATION PROGRAM written in the DOWTRAN
          language.

               (m)  GPI means an executable subset of process
          information and related software specially designed and
          developed for execution on the MINICOMPUTER which
          displays and stores process information and related
          information to assist operations personnel.

               (n)  SERIAL GRAPHICS SOFTWARE means Lessor supplied
          software, associated FIRMWARE, and protocol use rights to
          implement SERIAL GRAPHICS.
          1.2  Associated Hardware Definitions

               (a)  MOD5 HARDWARE means a user defined hardware
          configuration designed to implement the MOD5 CAN SOFTWARE
          which comprises two or more MOD CANS, two or more MOD5
          COMPUTERS, and one or more INTERFACE PROCESSORS.  MOD5
          HARDWARE further comprises the Lessor specified hardware
          (excluding FIRMWARE) resident within the MOD5 COMPUTER
          which is used in the linking of the MOD5 COMPUTER to at
          least one INTERFACE PROCESSOR.

               (b)  MOD CAN is a modular input/output device with
          associated electronics which receives inputs and
          originates output relative to PLANT instrumentation.

               (c)  MOD5 COMPUTER is a Lessor specified, high speed
          control computer.

               (d)  MINICOMPUTER is a member of a family of
          computers manufactured by the Digital Equipment
          Corporation comprising VAX (or, optionally, AXP) hardware
          executing the currently supported version of the VMS (or,
          optionally, Open VMS) operating system specified by
          Lessor, said computers otherwise referred to as VAX/VMS
          (or, optionally, AXP/Open VMS) systems, to be separately
          acquired by Lessee.

               (e)  SERIAL GRAPHICS is a programmable display panel
          means which executes SERIAL GRAPHICS SOFTWARE for
          consistent holistic display of immediate (REAL-TIME)
          information, within the context of a fixed pictorial
          background, depicting the status of a set of PROCESS
          CONTROL SIGNALS in the domain of a particular APPLICATION
          PROGRAM as its derived COMPILED DOWTRAN executes on its
          affiliated redundant MOD5 COMPUTER system.  The SERIAL
          GRAPHICS programmable display panel system communicates
          with its affiliated redundant MOD5 COMPUTER system using
          a network protocol.

          1.3  Miscellaneous Definitions

               (a)  PROCESS CONTROL SIGNALS is the set of analog
          inputs, analog outputs, digital inputs, digital outputs
          and the individual instances of process variables
          contained within serial data messages transmitted to/from
          the MOD5 OVERHEADS utilized to implement an APPLICATION
          PROGRAM at a given PLANT.

               (b)  HARDWARE CONSUMABLES include, without
          limitation, fuses, light bulbs, chart paper and other
          such utility sundry items.

               (c)  REMEDIAL PRODUCT NOTICE is a change in hardware
          design and/or software design and/or announcements of
          procedures as may be desirable for continuing
          effectiveness.

               (d)  REAL-TIME is generically defined as a method of
          executing the MOD5 OVERHEADS in a MOD5 COMPUTER in which
          an event causes a given reaction within an actual time
          limit and wherein MOD5 COMPUTER actions are specifically
          controlled within the context of and by external
          conditions and actual times.

               (e)  PLANT means Lessee's facilities referred to in
          the attached Schedule 1.  MOD5 SYSTEMS for each PLANT are
          specified by the number of CANS, and the installed
          version of computer processing unit(s), MOD5 OVERHEADS,
          GPI and DOWTRAN respectively.

               (f)  EFFECTIVE DATE is the date first set forth
          above.

          2.   Term

               The Term of this Agreement shall begin on the
          EFFECTIVE DATE hereof and, subject to the provisions
          herein for termination, shall continue for a period of
          five (5) years.  Lessee may extend this Term for an
          additional six (6) months on ninety (90) days advance
          notice.  Lessee may terminate this lease as to any MOD5
          SYSTEM at any time during the Term of this agreement on
          ninety (90) days advance written notice to Lessor.  The
          obligations of Article 6 shall survive any expiration or
          accelerated termination of this Agreement for a period of
          ten (10) years from the EFFECTIVE DATE.

          3.   Payments

               3.1  Lease Charges  Lease charges for MOD5 SOFTWARE
          leased hereunder are set forth in the accompanying
          Schedule 1.  These charges shall be invoiced within
          thirty (30) days of the EFFECTIVE DATE and upon each
          yearly anniversary thereof during the term of this
          Agreement and shall be payable within thirty (30) days of
          receipt of an invoice therefor.

               3.2  Taxes  Lessee shall pay all taxes, however
          designated, which are levied or based on the lease
          including, without limitation, property taxes, local fees
          or excise taxes,but excluding taxes thereon based on
          income to Lessor.  In the event Lessee defaults in the
          payment of any such tax, Lessor may pay such tax and
          shall be reimbursed by Lessee, with interest, as
          additional lease charges.

          4.   Terms of Possession and Use

               4.1  Lessor and Lessee agree that all MOD5 SOFTWARE
          leased by Lessor hereunder will be kept by Lessee in its
          sole possession and control and will at all times be
          located at the PLANTS designated in the attached Schedule
          1.  The parties will mutually cooperate to keep Schedule
          1 current as to installed MOD5 SYSTEMS at each PLANT.

               4.2  Lessee shall enjoy all rights of possession and
          use of MOD5 SOFTWARE leased hereunder subject to Lessor's
          rights under Paragraph 4.3. upon the occurrence of one or
          more of the following conditions:

               (a)  Lessee breaches the secrecy obligations of
               Article 6;

               (b)  Lessee fails to make payments within sixty (60)
               days after notice of payments in arrears;

               (c)  Lessee ceases to own or control facilities in
               which MOD5 SYSTEMS are installed, unless Lessee's
               transfer of ownership or control occurs pursuant to
               Article 14;

               (d)  Lessee ceases to use MOD5 SYSTEMS, or uses them
               for a purpose other than their original
               installation, or modifies them by integrally
               combining internal MOD5 SYSTEM physical or logical
               components with systems of others with the proviso
               that when switching from a MOD5 SYSTEM to a
               different process control system at a given PLANT
               the MOD5 SYSTEM may be operated (as far as
               reasonably possible in decoupled status) in parallel
               with the other system;

               (e)  Lessor is prevented by a Force Majeure
               condition from supporting MOD5 SOFTWARE acquired by
               Lessee hereunder.

               (f)  Lessee terminates this Agreement totally or in
               part as to any MOD5 SYSTEM.

               4.3  In the event one or more conditions of
          Paragraphs 4.2(a), (b), (c), (d), or (e) occurs.  Lessor
          may terminate this Agreement and its support of MOD5
          SYSTEMS and MOD5 SOFTWARE shall be returned to Lessor. 
          In the event Lessee exercises rights of unilateral
          termination under Paragraph 4.2(f), Lessor will terminate
          its support of such MOD5 SYSTEM and MOD5 SOFTWARE
          associated with such SYSTEM shall be returned to Lessor,
          subject to Lessee rights specified in Article 5.  Lessee
          will permit reasonable access of Lessor to the PLANTS to
          assist in the removal and return of MOD5 SOFTWARE.

          5.   Lessor Property

               5.1  Lessor and Lessee agree that all MOD5 SOFTWARE
          leased hereunder remains the personal property of Lessor
          or Lessor's grantor and, subject to Lessee's reasonable
          operating, safety and secrecy requirements.  Lessee shall
          permit access of Lessor or Lessor's designee to the
          PLANTS at any time after termination of this Agreement to
          permit removal of the same.  Lessee will keep and
          maintain the MOD5 SOFTWARE free and clear of all liens,
          charges and encumbrances.

               5.2  The glossaried and commented DOWTRAN language
          listing of the APPLICATION PROGRAM produced by Lessee
          shall be considered derivative software and, as such, it
          is owned by Lessee with the proviso that Lessee will
          diligently pursue protecting Lessor's interests pursuant
          to Article 6.  To facilitate Lessee's understanding of
          the retained derivative APPLICATION PROGRAM, Lessee may
          also retain the accompanying DOWTRAN application training
          manuals and any cross references to sub-routine listings
          in the APPLICATION PROGRAM.  Upon expiration of this
          lease these written materials retained by Lessee shall be
          considered proprietary information of Lessor licensed to
          Lessee subject to the terms of Article 6.  The compiled
          DOWTRAN listing from the MOD5 COMPILER is property of and
          shall be returned to Lessor along with MOD5 SOFTWARE.

          6.   Confidentiality

               MOD5 SYSTEMS comprise unique, valuable, proprietary
          information.  Lessee agrees to maintain and protect
          Lessor's interests in proprietary information and will
          accordingly keep all information pertaining to MOD5
          SYSTEMS in confidence and not use the same except as is
          necessary to the enjoyment and exercise of the leases
          granted by Lessor hereunder at the PLANTS listed in the
          attached Schedule 1.  Lessee will take diligent action to
          fulfill the foregoing obligations by instruction and
          agreement with its employees or agents respecting the
          confidentiality of this information and shall obtain from
          them their written commitments to comply with terms of
          confidentiality.

          7.   Software Copies

               MOD5 SOFTWARE may only be copied, in whole or part,
          with proper inclusion of Lessor's copyright notice and
          any other proprietary notice required by Lessor, as
          necessary and incidental to the use of such software for
          archival and backup purposes or to replace a worn or
          defective copy.  All such copies shall be subject to the
          terms and conditions of this Agreement and shall be kept
          and used at the designated PLANTS.  If Lessee is unable
          to operate the MOD5 SOFTWARE on originally installed
          equipment, the MOD5 SOFTWARE may be transferred
          temporarily to another system during the period of
          equipment malfunction.

          8.   Warranties, Disclaimers and Validations
               8.1  THE EXPRESSED WARRANTIES HEREIN CONTAINED ARE

          IN LIEU OF ANY AND ALL OTHER WARRANTIES, EXPRESS OR
          IMPLIED, INCLUDING THE WARRANTY OF MERCHANTABILITY AND OF
          FITNESS FOR A PARTICULAR PURPOSE.  Lessor warrants that
          MOD5 SOFTWARE as delivered will operate substantially as
          indicated in documentation provided by Lessor and will
          replace or provide instructions to adjust malfunctioning
          components of MOD5 SOFTWARE on receiving notice thereof
          from Lessee.  Lessor will expeditiously address the
          notice with, alternatively at Lessor's discretion,
          replacement of the component with a currently available
          MOD5 SOFTWARE component or instructions for corrective
          logical modification of, or other accommodative procedure
          for, the MOD5 SOFTWARE addressing the malfunction. 
          Lessee shall promptly, upon discovery, notify Lessor of
          any alleged deficiency which may exist.

               8.2  Lessor warrants that the MOD5 SOFTWARE as
          delivered by Lessor under this Agreement shall not
          infringe copyrights or patent rights of a third party
          existing on the EFFECTIVE DATE.  Upon prompt written
          notice from Lessee providing all pertinent details of a
          claim of such asserted infringement, Lessor will
          undertake to investigate and at Lessor's expense to
          settle or to defend against such a claim, provided Lessee
          grants any necessary authority and gives its full support
          and cooperation, or to obtain the right for Lessee to
          continue to use the MOD5 SOFTWARE, or to replace or
          modify the allegedly infringing components of the MOD5
          SOFTWARE which Lessor has so delivered to avoid any such
          claim that is found to be valid.  Without prejudice to
          the generality of the foregoing, such expense shall
          extend to reasonable attorneys' fees incurred by Lessee
          in respect of such claim.  If an award is rendered
          against Lessee, in any litigation that the Lessor defends
          hereunder for infringement by the components of the MOD5
          software which Lessor has so delivered, then Lessor shall
          reimburse Lessee for damages and costs awarded by the
          judicial authority in respect to those components.

               8.3  Lessee acknowledges that it is responsible for
          each APPLICATION PROGRAM and is not relying on Lessor's
          skill or judgment to select or furnish MOD5 SOFTWARE and
          associated MOD5 HARDWARE suitable for operation of a
          particular manufacturing process and that there are no
          warranties which are not contained in this Agreement. 
          Lessee acknowledges that it has made the selection of the
          associated MOD5 HARDWARE.  Lessor shall not be liable for
          special, incidental or consequential damages arising out
          of or in connection with the performance of systems
          utilizing MOD5 SOFTWARE and associated MOD5 HARDWARE. 
          Lessor shall not be responsible for any loss or damage
          caused by, nor shall any payments due hereunder abate by
          reason of, any interruption in or loss of service or use
          of the equipment or any part thereof arising from any
          reason not solely attributable to Lessor.  Without
          limiting the generality of the foregoing, examples of the
          foregoing include errors in the APPLICATION PROGRAM,
          normal wear and tear of the MOD5 SOFTWARE, or gradual
          deterioration of the MOD5 SOFTWARE.

               8.4  Lessor's total obligation after the EFFECTIVE
          DATE under this Article shall in no event exceed one
          hundred percent (100%) of the total amount of the
          payments actually received by Lessor under this
          Agreement.

               8.5  Whenever and to the extent validation of MOD5
          SYSTEMS has occurred under FDA regulations to date,
          Lessee shall retain those reports in support of
          validation.  If revalidation of the process control
          system is necessary because of extended requirements of
          the FDA regulations, Lessor shall provide information
          reasonably required.

               8.6  With regard to any FDA validations in progress,
          or those to be conducted in the future, Lessor shall
          provide information reasonably required under FDA
          regulations with respect to MOD5 SYSTEMS validation.

          9.   Liability, Indemnity and Risk of Loss

               Lessee assumes all risks and liabilities, whether or
          not covered by insurance, and shall indemnify and hold
          Lessor and its employees harmless for any liability,
          claim, loss, damage or expense for injuries to or deaths
          of persons and for damage to property, howsoever arising
          from or incident to the possession, use, operation or
          storage of MOD5 SOFTWARE and associated MOD5 HARDWARE,
          and operation of the MOD5 SYSTEM, save and except for any
          matter attributable to the sole negligence or willful
          misconduct of Lessor.  Said assumption of risks and
          liabilities by Lessee shall apply whether such injury or
          death to persons be to agents or employees of Lessee or
          be to third persons and whether such damage be to
          property of Lessee or to property of others.

          10.  MOD5 SOFTWARE Maintenance and Support

               10.1  Throughout the Term hereunder after
          installation of the MOD5 SOFTWARE, Lessee shall maintain
          site conditions to provide an acceptable operating
          environment for the MOD5 SOFTWARE as referenced in
          documentation provided by Lessor.  Lessee is responsible
          for maintenance not provided under the Service Agreement
          attached hereto as Appendix A and installation of the
          MOD5 SOFTWARE.  Lessee will maintain the MOD5 SOFTWARE in
          a current and up-to-date condition adapting the
          APPLICATION PROGRAM to accommodate REMEDIAL PRODUCT
          NOTICES when recommended by Lessor, which will be
          supplied by Lessor or by vendors approved by Lessor. 
          Such adaptations will normally address operating
          reliability.  Lessor will counsel Lessee, as requested
          pursuant to the attached Service Agreement, to accomplish
          the foregoing and Lessee shall permit Lessor or Lessor's
          designee access to the MOD5 SOFTWARE for providing any
          necessary assistance, such access to include network
          access if deemed appropriate.

               10.2  Lessor agrees to supply Maintenance and
          Support Services for Maintenance and Support Services for
          MOD5 SOFTWARE, including maintenance and adjustment of
          associated MOD5 HARDWARE, solely in accordance with the
          Service Agreement which is incorporated as Appendix A of
          this Agreement.  Lessor is not responsible for supply,
          maintenance and adjustment of the MINICOMPUTER, and other
          commercially sourced computer(s) or commercially sourced
          operating system(s) used in association with MOD5
          SOFTWARE.

               10.3  Subject to Lessee's reasonable operating,
          safety and secrecy requirements, Lessee shall grant
          Lessor PLANT access to the MINICOMPUTER and other
          commercially sourced computer(s) used with MOD5 SOFTWARE
          during normal working hours for inspection and
          installation of REMEDIAL PRODUCT NOTICES and for any
          other reasonable purpose, such access to include network
          access if deemed appropriate.  Lessee shall immediately
          notify Lessor of all details concerning any malfunction
          arising out of the alleged or apparent improper
          manufacture, functioning or operation of the MOD5
          SOFTWARE.

          11.  Notices
               Lessee and Lessor agree that notices required
          hereunder shall be deemed received the seventh day after
          mailing, if mailed air postage prepaid to Lessor or
          Lessee as the case may be at their respective address
          given below.

               If to Lessor, to:   Rofan Services, Inc.
                                   2030 Willard H. Dow Center
                                   Midland, MI  48674

                                   Attention:  M. N. Trask, Vice
                                               President

               If to Lessee, to:   Merrell Dow Pharmaceuticals Inc.
                                   2110 E. Galbraith Road
                                   Cincinnati, OH  45215

                                   Attention:  _________________

          Either party may change such address for notice by
          sending to the other party a written notice.

          12.  Severability
               Any provision hereof prohibited by, or unlawful or
          unenforceable under, any applicable law of any
          jurisdiction shall be ineffective as to such jurisdiction
          without invalidating the remaining provisions of this
          Agreement.  In the event a material provision is
          affected, the parties shall reformulate their mutual
          undertakings in such manner as to preserve, as much as
          possible, their original intentions and objects of this
          Agreement, consistent with the laws of such jurisdiction.

          13.  Alterations

               Except for Lessee's remedial modification of
          APPLICATION PROGRAM, no alterations to MOD5 SOFTWARE
          shall be made without first obtaining in each instance
          the prior written approval of Lessor which approval shall
          be expeditiously considered and not be unreasonably
          withheld.

          14.  Conflicts and Assignability

               This Agreement does not operate as an acceptance of
          any conflicting terms or conditions and shall prevail
          over any conflicting provision of any subsequent purchase
          order or other instrument of Lessee, it being understood
          that any purchase order or the request of Lessee acted
          upon by Lessor shall be for the convenience of Lessee
          only but shall not operate to amend or modify in any
          respect the terms hereof.  This Agreement may only be
          altered, modified, supplemented or deviated from by
          further agreement in writing executed by an authorized
          representative of each Lessor and Lessee.  Lessee and
          Lessor acknowledge that by executing this Agreement each
          has reviewed the attachments listed above and each agrees
          to be legally bound and dutifully perform its obligations
          thereunder.  Lessor reserves the right to assign this
          Agreement to a parent, affiliate or sister company of
          Lessor, but otherwise this Agreement shall not be
          assignable by either party except to a successor of the
          entire PLANT, which undertakes all obligations assumed by
          lessee hereunder by an agreement executed and copied to
          Lessor and to whom Lessor has no reasonable objection.


          15.  Applicable Law
               The laws of the State of Michigan shall be applied
          in the construction and interpretation of this Agreement. 
          No law of conflicts or choice of law shall supersede this
          provision except as provided in Article 6.

               IN WITNESS WHEREOF, the parties have caused this
          Agreement to be executed on their behalf by their duly
          authorized representatives.

          LESSOR:                            LESSEE:

          ROFAN SERVICES INC.                MERRELL DOW PHARMACEUTICALS
                                              INC.

          By:/s/ John C. Lillich             By:/s/ Charles D. Dalton      

          Name:  John C. Lillich             Name:  Charles D. Dalton      
          Title: President                   Title: Vice President         

          Date:  May 3, 1995                 Date:  May 3, 1995            


                                  APPENDIX A

                              SERVICE AGREEMENT

                                 MAINTENANCE

          1.   Services
               (i)   To facilitate efficient use of MOD5 SOFTWARE,
          Lessor agrees to provide and Lessee agrees to acquire
          MOD5 SOFTWARE Maintenance Services as provided hereunder. 
          Lessee has responsibility to acquire,through separate
          arrangements with Lessor or another party, reasonable
          MOD5 HARDWARE training and/or services necessary to apply
          DOWTRAN to the CONTROL SCHEMA and to remedially modify
          and APPLICATION PROGRAM.
               (ii)  Maintenance Services for MOD5 SOFTWARE
          include the notification of and assistance for
          implementation, where necessary, of REMEDIAL PRODUCT
          NOTICES for MOD5 SOFTWARE and remedial maintenance
          consultation for MOD5 SOFTWARE, MOD5 HARDWARE, FIRMWARE
          and other maintenance conducted by Lessee.  Repair of
          subassemblies and printed circuit boards will by done by
          Lessor for Lessee's account, i.e., at Lessee's expense,
          working with the vendor of such components.  Acquisition
          and installation of HARDWARE CONSUMABLES shall be the
          responsibility of Lessee.
               (iii) Lessor shall provide backup support for MOD5
          SOFTWARE and MOD5 HARDWARE after Lessee has undertaken
          reasonable effort to resolve any MOD5-related problem. 
          Telephone support shall be provided within 24 hours of
          notification of the problem and on-site service shall be
          provided within 48 hours of any such notification.
               (iv)  Lessee shall be responsible for the
          appointment of one or more computer systems professionals
          or process control professionals fluent in the English
          language having a level of technical qualifications and
          experience acceptable to Lessor, whose acceptance will
          not be unreasonably withheld, as manager for the MOD5
          SOFTWARE.  The MOD5 SOFTWARE manager shall enter into a
          secrecy agreement with Lessor to protect Lessor's
          technology and shall cooperate with Lessor in enabling
          access to the MOD5 SOFTWARE when appropriate.
               (v)   "Special Services" reasonably required by
          lessee at its PLANT sites any time during the Term and
          upon termination of this lease, such as, for example,
          services that may be required to assist Lessee in
          completing FDA validations of process control in progress
          or for such technical support as may be reasonably
          necessary in switching from MOD5 process control to
          another process control system shall be provided by
          Lessor on reasonable notice for a period up to twelve
          (12) workdays (8 hours per workday) over each successive
          twelve (12) month period during the term of this lease
          measured from its EFFECTIVE DATE.  Special Service
          workdays not used within a given twelve (12) month period
          shall not carry over to a subsequent period.
               (vi)  Lessee and Lessor from time to time may agree
          on additional or new Special Services beyond those agreed
          in this Agreement.  Any such additional or new Special
          Services may be agreed to in a MOD5 Special Service
          Addendum.  For each separate request for services from
          Lessee, Lessor shall prepare and submit to Lessee a
          written service proposal.  The parties shall discuss the
          service proposal and negotiate to agreement regarding the
          nature, scope, terms and detail of the work.  If
          agreement on the total scope is reached, the parties
          shall develop a Special Service Addendum which shall
          define in detail the scope of services and tasks to be
          performed, the schedule for completion and the billing
          basis for such Special services.  Each MOD5 Special
          Service Addendum shall be effective only if signed by an
          authorized representative of each party.  Each Special
          Service Addendum shall be sequentially numbered.  A
          sample Special Service Addendum is attached as Appendix

          B.

          2.   Service Limitations
               Services are contingent upon the proper use of the
          MOD5 SOFTWARE and the acquisition of associated MOD5
          HARDWARE suitable for running MOD5 SOFTWARE.  Services do
          not include any of the following:  electrical work
          external to the INTERFACE PROCESSOR, MINICOMPUTER, or
          other commercially sourced computer(s) or commercially
          sourced operating system(s) associated with the MOD5
          SYSTEM; replacing or providing HARDWARE CONSUMABLES;
          refinishing MOD5 SOFTWARE; or maintenance of accessories,
          attachments, machines or other devices not provided by
          Lessor.  Service shall not include practices which in
          Lessor's judgment are unsafe or impractical for Lessor to
          render because of alterations to the MOD5 SOFTWARE or
          connection of the PLANTS by mechanical or electrical
          means to machine devices furnished by a supplier other
          than Lessor.  Service will not be performed on MOD5
          SOFTWARE located in an unsafe or hazardous environment,
          as determined by Lessor.  Service to be provided does not
          include service necessitated by elements external to the
          MOD5 SOFTWARE which are not within Lessor's operation or
          maintenance instructions or installation site preparation
          guidelines including,but not limited to, humidity,
          temperature, power failure, surges, air conditioning,
          grounding, static charge control, service resulting from
          accident, neglect, alterations, improper use or misuse of
          the MOD5 SOFTWARE or by repairs attempted by Lessee's
          personnel or service to a version other than the
          installed version of MOD5 SOFTWARE and MOD5 HARDWARE.

          3.   Service Charge
               (i)   For Maintenance Services described in Article
          1 performed at Lessee's PLANTS, Lessee shall pay Lessor a
          service charge in the amount of Lessor's standard charge
          for such services, plus reasonable travel and living
          expenses.  This fee is presently $125.00 per hour.

               (ii)  For home based maintenance and support
          services described in Article 1 above conducted at the
          home locations of Lessor and its suppliers, Lessee shall
          pay Lessor an annual fee as shown on Schedule 1
          determined by multiplying the total number of MOD CANS on
          which MOD5 SOFTWARE is run by a standard service fee.

               (iii) Special Services pursuant to Article 1(v)
          shall be without charge for up to 2 workdays in a single
          visit within each successive 12 month period during the
          Term of this lease.  For additional workdays and
          additional visits within each 12 month period Lessee
          shall pay Lessor a professional consulting fee of $150.00
          per hour for up to an additional 10 workdays.  Lessee
          shall reimburse Lessor for reasonable travel and lodging
          expenses of such consultancy.

               (iv)  Service charges accruing under this Article 3
          will be invoiced and shall be payable within thirty (30)
          days of receipt of an invoice therefor.


                                  APPENDIX B

                        MOD5 SERVICE ADDENDUM NO. ___
                     (Reference Article 1(vi) Appendix A)

          (A)  Scope of Special Services:

          (B)  Compensation:

          (C)  Term or Schedule of Completion:


          (D)  Changes to Scope of Services:

          (E)  Representatives:

          (F)  Responsibility for Reporting:

          (G)  Termination:

               This Special Service Addendum may be terminated (i)
               by either party with or without cause at any time
               upon 30 days written notice, or (ii) by the non-
               breaching party upon 2 days written notice in the
               event the other party fails to cure its breach of a
               material obligation under the Agreement or this
               Special Service Addendum within 20 days of its
               receipt of a notice alleging such breach from the
               other party.


                                  SCHEDULE 1

                             LEASED MOD5 SOFTWARE

                                NUMBER OF        LEASE          ANNUAL
SITE            PLANT           MOD CANS        CHARGES      SUPPORT FEES

CINCINNATI,    DRY PRODUCTS         2
OHIO           LIQUID PRODUCTS      2
               GRANEX               2
               NEW TECH             2
               SIM CAN              1

                                    9             none       $11,700.00
                                                (ANTEDATES
                                                  LEASING)

MOD5 SYSTEMS DESCRIPTION:

     NUMBER OF SYSTEMS:    5

     VERSIONS:
       CPU:                MOD5 +
       OVERHEAD SOFTWARE:  6.42
       GPI:                CONVERTING TO GPI
                           (CURRENTLY USING DOWPIX)

MIDLAND,       BLDG.827             21          PAID-UP        $24,700.00
MICHIGAN                                                    (EXCLUDES MOD4)

MOD5 SYSTEMS DESCRIPTION:

     NUMBER OF SYSTEMS:    6

     VERSIONS:
       CPU:                MOD4   (2 CANS)
                           MOD5 + (17 CANS)
                           MOD5E  (2 CANS)
       OVERHEAD SOFTWARE:  7.71   (15 CANS)
                           6.04   (4 CANS)
       GPI:                2.11
       DSS:                2.11
       VMS:                5.5-2
       MODSERVER SOFTWARE: 5.17


                                NUMBER OF        LEASE          ANNUAL
SITE            PLANT           MOD CANS        CHARGES      SUPPORT FEES

MIDLAND,       BLDG.1               11          PAID-UP        $14,300.00
MICHIGAN

MOD5 SYSTEMS DESCRIPTION:

     NUMBER OF SYSTEMS:    3

     VERSIONS:
       CPU:                MOD5E
       OVERHEAD SOFTWARE:  7.71
       GPI:                2.11
       DSS:                2.11
       VMS:                5.5-2
       MODSERVER SOFTWARE: 5.17

MIDLAND,       BLDG.1381            11          PAID-UP        $14,300.00
MICHIGAN

MOD5 SYSTEMS DESCRIPTION:

     NUMBER OF SYSTEMS:    2

     VERSIONS:
       CPU:                MOD5E
       OVERHEAD SOFTWARE:  7.71
       GPI:                2.11
       DSS:                2.11
       VMS:                5.5-2h4
       MODSERVER SOFTWARE: 5.17

               TOTAL ANNUAL SUPPORT FEES:                      $65,000,000


                      PERSONAL CONFIDENTIALITY AGREEMENT

          DECLARATIONS:

               The undersigned employee of Merrell Dow

          Pharmaceuticals Inc. (MDPI) has certain responsibilities
          for maintaining and operating MOD5 SYSTEMS for
          manufacturing process control.
               The undersigned Affiliate of The Dow Company (Dow)
          is willing to continue supporting MOD5 SYSTEMS used by
          MDPI according to the terms of the "Computerized Process
          Control Software Agreement" entered into between
          Affiliate and MDPI with the proviso that the latter
          appoint a MOD5 SOFTWARE technical manager with
          appropriate competencies in the English language and
          pertinent technical qualifications.

          ASSURANCES:
               The undersigned acknowledges he/she has been
          assigned such responsibilities regarding MOD5 SYSTEMS BY
          MDPI and affirms:

               1.  That he/she is familiar with the "Computerized
          Process Control Software Agreement" mentioned above,
          including those terms thereof regarding confidentiality
          of information.

               2.  That pursuant to the terms of the Agreement
          he/she will not disclose to others proprietary
          information about MOD5 SYSTEMS nor make any unauthorized
          copies of documents containing such Information, and
          moreover agrees that no personal rights to use any
          Information acquired in working with MOD5 SYSTEMS are
          expressly or impliedly acquired hereunder.

               It is understood by the undersigned and Affiliate of
          Dow that these obligations shall not apply to Information
          which is or becomes part of the public domain through no
          fault of the undersigned or is received by the
          undersigned on a nonconfidential basis from a third party
          who is not under an obligation of confidence to Dow or a
          Dow Affiliate.

          ACCEPTED BY                      ROFAN SERVICES INC.
          MDPI Representative:


          __________________________       By:_________________________
          Name:_____________________       Name:_______________________

          Title:____________________       Title:______________________
          Date:_____________________       Date:_______________________

               Upon termination of the Special Service Addendum, Lessor
               shall invoice Lessee for all services performed by Lessor
               under this Special Service Addendum prior to the termination
               for which Lessor was not previously compensated, and for
               expenses necessary to shut down the project.

          ACCEPTED AND AGREED, as of the later of the two dates noted in
          the signature blocks, by each Party's authorized representative.
 
          Lessor:                          Lessee:

          ROFAN SERVICES INC.              MERRELL DOW PHARMACEUTICALS
                                           INC.

          By:_________________________     By:_________________________
          Name:_______________________     Name:_______________________

          Title:______________________     Title:_______________________
          Date:_______________________     Date:________________________





                                                                 EXHIBIT 10


                   COMPUTERIZED PROCESS SOFTWARE AGREEMENT
                            (LEASES AND SERVICES)

               This lease and service agreement, hereinafter

          "Agreement," is made and entered into effective May 3,
          1995, by and between ROFAN AUTOMATION AND INFORMATION

          SYSTEMS B.V. (hereinafter "Lessor") and GRUPPO LEPETIT
          S.p.A. (hereinafter "Lessee"), located at:

               LESSOR:             ROFAN AUTOMATION AND INFORMATION
                                   SYSTEMS. B.V.
               Address:            Aert van Nesstraat 45
                                   3012 CA Rotterdam, The Netherlands

               Corporation of:  Kingdom of the Netherlands

               Authorized leasing representative for MOD5 SYSTEMS.

               LESSEE:             GRUPPO LEPETIT S.p.A.
               Address:            Via Roberto Lepetit 8
                                   20020 Lainate, Italy

               Corporation of:  Italy

               Lessor and Lessee hereby agree this Agreement consists
          in its entirety of this executed covering document and the

          following attachments:
               APPENDIX A - SERVICE AGREEMENT

               APPENDIX B - MOD5 SPECIAL SERVICE ADDENDUM
               SCHEDULE 1 - LEASED MOD5 SOFTWARE

               Lessor agrees to lease to Lessee and Lessee agrees
          to lease from Lessor in accordance with the terms and
          conditions of this Agreement MOD5 SOFTWARE as delineated
          in Schedule 1 to integrally generate, transmit and manage
          process control at the  PLANTS listed in Schedule 1
          attached hereto and made a part hereof.  This Agreement
          constitutes the entire understanding between Lessee and
          Lessor pertaining to all MOD5 SOFTWARE for Lessee's
          PLANTS and supersedes any prior or contemporaneous
          agreements and all negotiations, representations and
          proposals written or oral pertaining to this subject.

          1.   Definitions
               Terms used in this Agreement shall have the meanings

          ascribed to them as follows:


               1.1   Software Definitions
                     (a) MOD5 SOFTWARE means (1) MOD5 CAN SOFTWARE,

          (2) SERIAL GRAPHICS SOFTWARE, and (3) GPI based on
          specially designed, direct digital control, redundant
          computer technology to provide process control and
          process operation information for execution on MOD5
          HARDWARE.

                     (b) MOD5 SYSTEM is a specific implementation
          of MOD5 HARDWARE and MOD5 SOFTWARE in a PLANT.  Within a
          given PLANT there may be one or more MOD5 SYSTEMS.

                     (c) MOD5 CAN SOFTWARE means MOD5 OVERHEADS
          including associated FIRMWARE, DOWTRAN SUPPORT TOOLS, AND
          MOD5 COMPILER.

                     (d) FIRMWARE is a physical means containing
          electronically retrievable information pertaining to MOD5
          SOFTWARE.

                     (e) INTERFACE PROCESSOR is a functional
          interconnection within a system between the MOD5
          OVERHEADS and other MOD5 SOFTWARE, which contains
          hardware, dedicated executable software, and FIRMWARE.

                    (f)  DOWTRAN is a specific language designed
          for the process control application engineer to convert
          and express the CONTROL SCHEMA into an APPLICATION
          PROGRAM for a manufacturing process.  The APPLICATION
          PROGRAM is further transformed into COMPILED DOWTRAN
          using a MOD5 COMPILER.

                    (g)  MOD5 OVERHEADS means the redundantly
          deployed, executable operating system software and,
          optionally, protocol use rights, for the MOD5 COMPUTER
          that executes the COMPILED DOWTRAN and implements
          diagnostics, inputs, outputs, alarms and event logging.

                    (h)  DOWTRAN SUPPORT TOOLS are utility programs
          which execute on the MINICOMPUTER to assist the
          application engineer in writing the APPLICATION PROGRAM
          in DOWTRAN.

                    (i)  APPLICATION PROGRAM is the set of
          sequential human readable representations of the evolving
          CONTROL SCHEMA in DOWTRAN, where the set is designated
          with an essentially consistent logical identifier.

                    (j)  COMPILED DOWTRAN is the set of respective
          sequential instances of machine readable code,
          redundantly deployed, which results from the compilation
          process executed by the MOD5 COMPILER to convert the
          APPLICATION PROGRAM written in DOWTRAN into said machine
          readable code.

                    (k)  CONTROL SCHEMA comprises the entire
          collection of concepts, process dynamics and control
          models, and associated decision models which are
          referenced to define the APPLICATION PROGRAM.

                    (l)  MOD5 COMPILER is a computer program which
          executes on the MINICOMPUTER to produce COMPILED DOWTRAN
          from the APPLICATION PROGRAM written in the DOWTRAN
          language.

                    (m)  GPI means an executable subset of process
          information and related software specially designed and
          developed for execution on the MINICOMPUTER which
          displays and stores process information and related
          information to assist operations personnel.

                    (n)  SERIAL GRAPHICS SOFTWARE means Lessor
          supplied software, associated FIRMWARE, and protocol use
          rights to implement SERIAL GRAPHICS.

               1.2  Associated Hardware Definitions
                    (a)  MOD5 HARDWARE means a user defined
          hardware configuration designed to implement the MOD5 CAN
          SOFTWARE which comprises two or more MOD CANS, two or
          more MOD5 COMPUTERS, and one or more INTERFACE
          PROCESSORS.  MOD5 HARDWARE further comprises the Lessor
          specified hardware (excluding FIRMWARE) resident within
          the MOD5 COMPUTER which is used in the linking of the
          MOD5 COMPUTER to at least one INTERFACE PROCESSOR.

                    (b)  MOD CAN is a modular input/output device
          with associated electronics which receives inputs and
          originates output relative to PLANT instrumentation.

                    (c)  MOD5 COMPUTER is a Lessor specified, high
          speed control computer.

                    (d)  MINICOMPUTER is a member of a family of
          computers manufactured by the Digital Equipment
          Corporation comprising VAX (or, optionally, AXP) hardware
          executing the currently supported version of the VMS (or,
          optionally, Open VMS) operating system specified by
          Lessor, said computers otherwise referred to as VAX/VMS
          (or, optionally, AXP/Open VMS) systems, to be separately
          acquired by Lessee.

                    (e)  SERIAL GRAPHICS is a programmable display
          panel means which executes SERIAL GRAPHICS SOFTWARE for
          consistent holistic display of immediate (REAL-TIME)
          information, within the context of a fixed pictorial
          background, depicting the status of a set of PROCESS
          CONTROL SIGNALS in the domain of a particular APPLICATION
          PROGRAM as its derived COMPILED DOWTRAN executes on its
          affiliated redundant MOD5 COMPUTER system.  The SERIAL
          GRAPHICS programmable display panel system communicates
          with its affiliated redundant MOD5 COMPUTER system using
          a network protocol.

               1.3  Miscellaneous Definitions

                    (a)  PROCESS CONTROL SIGNALS is the set of
          analog inputs, analog outputs, digital inputs, digital
          outputs and the individual instances of process variables
          contained within serial data messages transmitted to/from
          the MOD5 OVERHEADS utilized to implement an APPLICATION
          PROGRAM at a given PLANT.

                    (b)  HARDWARE CONSUMABLES include, without
          limitation, fuses, light bulbs, chart paper and other
          such utility sundry items.

                    (c)  REMEDIAL PRODUCT NOTICE is a change in
          hardware design and/or software design and/or
          announcements of procedures as may be desirable for
          continuing effectiveness.

                    (d)  REAL-TIME is generally defined as a method
          of executing the MOD5 OVERHEADS in a MOD5 COMPUTER in
          which an event causes a given reaction within an actual
          time limit and wherein MOD5 COMPUTER actions are
          specifically controlled within the context of and by
          external conditions and actual times.

                    (e)  PLANT means Lessee's facilities referred
          to in the attached Schedule 1.  MOD5 SYSTEMS for such
          PLANT are specified by the number of CANS, and the
          installed version of computer processing unit(s), MOD5
          OVERHEADS, GPI and DOWTRAN respectively.

                    (f)  EFFECTIVE DATE is the date first set forth
          above.

          2.   Term
               The Term of this Agreement shall begin on the
          EFFECTIVE DATE hereof and, subject to the provisions
          herein for termination, shall continue for a period of
          five (5) years.  Lessee may extend this Term for an
          additional six (6) months on ninety (90) days advance
          notice.  Lessee may terminate this lease as to any MOD5
          SYSTEM at any time during the Term of this agreement on
          ninety (90) days advance written notice to Lessor.  The
          obligations of Article 6 shall survive any expiration or
          accelerated termination of this Agreement for a period of
          ten (10) years from the EFFECTIVE DATE.

          3.   Payments

               3.1  Lease Charges.  Lease charges for MOD5 SOFTWARE
          leased hereunder are set forth in the accompanying
          Schedule 1.  These charges shall be invoiced within
          thirty (30) days of the EFFECTIVE DATE and upon each
          yearly anniversary thereof during the term of this
          Agreement and shall be payable within thirty (30) days of
          receipt of an invoice therefor.

               3.2  Taxes.  Lessee shall pay all taxes, however
          designated, which are levied or based on the lease
          including, without limitation, property taxes, local fees
          or excise taxes, but excluding taxes thereon based on
          income to Lessor.  In the event Lessee defaults in the
          payment of any such tax, Lessor may pay such tax and
          shall be reimbursed by Lessee, with interest, as
          additional lease charges.

          4.   Terms of Possession and Use

               4.1  Lessor and Lessee agree that all MOD5 SOFTWARE
          leased by Lessor hereunder will be kept by Lessee in its
          sole possession and control and will at all times be
          located at the PLANTS designated in the attached
          Schedule 1.  The parties will mutually cooperate to keep
          Schedule 1 current as to installed MOD5 SYSTEMS at each

          PLANT.

               4.2  Lessee shall enjoy all rights of possession and
          use of MOD5 SOFTWARE leased hereunder subject to Lessor's
          rights under Paragraph 4.3, upon the occurrence of one or
          more of the following conditions:

                    (a)  Lessee breaches the secrecy
               obligations of Article 6;

                    (b)  Lessee fails to make payments within
               sixty (60) days after notice of payments in
               arrears;

                    (c)  Lessee ceases to own or control
               facilities in which MOD5 SYSTEMS are installed,
               unless Lessee's transfer of ownership or
               control occurs pursuant to Article 14;

                    (d)  Lessee ceases to use MOD5 SYSTEMS, or
               uses them for a purpose other than their
               original installation, or modifies them by
               integrally combining internal MOD5 SYSTEM
               physical or logical components with systems of
               others with the proviso that when switching
               from a MOD5 SYSTEM to a different process
               control system at a given PLANT the MOD5 SYSTEM
               may be operated (as far as reasonably possible
               in decoupled status) in parallel with the other
               system;

                    (e)  Lessor is prevented by a Force
               Majeure condition from supporting MOD5 SOFTWARE
               acquired by Lessee hereunder.

                    (f)  Lessee terminates this Agreement
               totally or in part as to any MOD5 SYSTEM.

               4.3  In the event one or more conditions of
          Paragraphs 4.2(a), (b), (c), (d), or (e) occurs, Lessor
          may terminate this Agreement and its support of MOD5
          SYSTEMS and MOD5 SOFTWARE shall be returned to Lessor. 
          In the event Lessee exercises rights of unilateral
          termination under Paragraph 4.2(f), Lessor will terminate
          its support of such MOD5 SYSTEM and MOD5 SOFTWARE
          associated with such SYSTEM shall be returned to Lessor,
          subject to Lessee rights specified in Article 5.  Lessee
          will permit reasonable access of Lessor to the PLANTS to
          assist in the removal and return of MOD5 SOFTWARE.

          5.   Lessor Property

               5.1  Lessor and Lessee agree that all MOD5 SOFTWARE
          leased hereunder remains the personal property of Lessor
          or Lessor's grantor and, subject to Lessee's reasonable
          operating, safety and secrecy requirements, Lessee shall
          permit access of Lessor or Lessor's designee to the
          PLANTS at any time after termination of this Agreement to
          permit removal of the same.  Lessee will keep and
          maintain the MOD5 SOFTWARE free and clear of all liens,
          charges and encumbrances.

               5.2  The glossaried and commented DOWTRAN language
          listing of the APPLICATION PROGRAM produced by Lessee
          shall be considered derivative software and, as such, it
          is owned by Lessee with the proviso that Lessee will
          diligently pursue protecting Lessor's interests pursuant
          to Article 6.  To facilitate Lessee's understanding of
          the retained derivative APPLICATION PROGRAM, Lessee may
          also retain the accompanying DOWTRAN application training
          manuals and any cross references to sub-routine listings
          in the APPLICATION PROGRAM.  Upon expiration of this
          lease these written materials retained by Lessee shall be
          considered proprietary information of Lessor licensed to
          Lessee subject to the terms of Article 6.  The compiled
          DOWTRAN listing from the MOD5 COMPILER is property of and
          shall be returned to Lessor along with MOD5 SOFTWARE.

          6.   Confidentiality

               6.1  MOD5 SYSTEMS comprise unique, valuable,
          proprietary information.  Lessee agrees to maintain and
          protect Lessor's interests in proprietary information and
          will accordingly keep all information pertaining to MOD5
          SYSTEMS in confidence and not use the same except as is
          necessary to the enjoyment and exercise of the leases
          granted by Lessor hereunder at the PLANTS listed in the
          attached Schedule 1.  Lessee will take diligent action to
          fulfill the foregoing obligations by instruction and
          agreement with its employees or agents respecting the
          confidentiality of this information and shall obtain from
          them their written commitments to comply with terms of
          confidentiality.

               6.2  Lessee shall adhere to the U.S. Export
          Administration Laws and Regulations and shall not
          knowingly reexport, directly or indirectly, any MOD5
          SOFTWARE or MOD5 HARDWARE, or any technical data received
          from Lessor or the direct products of such technical data
          in violation of 15 CFR Part 779 of the U.S. Export
          Administration Regulations unless proper authorization of
          the U.S. Government and the written consent of Lessor
          have previously been obtained.  No law of conflicts or
          choice of law shall supersede this provision.

          7.   Software Copies

               MOD5 SOFTWARE may only be copied, in whole or part,
          with proper inclusion of Lessor's copyright notice and
          any other proprietary notice required by Lessor, as
          necessary and incidental to the use of such software for
          archival and backup purposes or to replace a worn or
          defective copy.  All such copies shall be subject to the
          terms and conditions of this Agreement and shall be kept
          and used at the designated PLANTS.  If Lessee is unable
          to operate the MOD5 SOFTWARE on originally installed
          equipment, the MOD5 SOFTWARE may be transferred
          temporarily to another system during the period of
          equipment malfunction.

          8.   Warranties, Disclaimers and Validations

               8.1  THE EXPRESSED WARRANTIES HEREIN CONTAINED ARE
          IN LIEU OF ANY AND ALL OTHER WARRANTIES, EXPRESS OR
          IMPLIED, INCLUDING THE WARRANTY OF MERCHANTABILITY AND OF
          FITNESS FOR A PARTICULAR PURPOSE.  Lessor warrants that
          MOD5 SOFTWARE as delivered will operate substantially as
          indicated in documentation provided by Lessor and will
          replace or provide instructions to adjust malfunctioning
          components of MOD5 SOFTWARE on receiving notice thereof
          from Lessee.  Lessor will expeditiously address the
          notice with, alternatively at Lessor's discretion,
          replacement of the component with a currently available
          MOD5 SOFTWARE component or instructions for corrective
          logical modification of, or other accommodative procedure
          for, the MOD5 SOFTWARE addressing the malfunction. 
          Lessee shall promptly, upon discovery, notify Lessor of
          any alleged deficiency which may exist.

               8.2  Lessor warrants that the MOD5 SOFTWARE as
          delivered by Lessor under this Agreement shall not
          infringe copyrights or patent rights of a third party
          existing on the EFFECTIVE DATE.  Upon prompt written
          notice from Lessee providing all pertinent details of a
          claim of such asserted infringement, Lessor will
          undertake to investigate and at Lessor's expense to
          settle or to defend against such a claim, provided Lessee
          grants any necessary authority and gives its full support
          and cooperation, or to obtain the right for Lessee to
          continue to use the MOD5 SOFTWARE, or to replace or
          modify the allegedly infringing components of the MOD5
          SOFTWARE which Lessor has so delivered to avoid any such
          claim that is found to be valid.  Without prejudice to
          the generality of the foregoing, such expense shall
          extend to reasonable attorneys' fees incurred by Lessee
          in respect of such claim.  If an award is rendered
          against Lessee, in any litigation that the Lessor defends
          hereunder for infringement by the components of the MOD5
          SOFTWARE which Lessor has so delivered, then Lessor shall
          reimburse Lessee for damages and costs awarded by the
          judicial authority in respect to those components.

               8.3  Lessee acknowledges that it is responsible for
          each APPLICATION PROGRAM and is not relying on Lessor's
          skill or judgment to select or furnish MOD5 SOFTWARE and
          associated MOD5 HARDWARE suitable for operation of a
          particular manufacturing process and that there are no
          warranties which are not contained in this Agreement. 
          Lessee acknowledges that it has made the selection of the
          associated MOD5 HARDWARE.  Lessor shall not be liable for
          special, incidental or consequential damages arising out
          of or in connection with the performance of systems
          utilizing MOD5 SOFTWARE and associated MOD5 HARDWARE. 
          Lessor shall not be responsible for any loss or damage
          caused by, nor shall any payments due hereunder abate by
          reason of, any interruption in or loss of service or sue
          of the equipment or any part thereof arising from any
          reason not solely attributable to Lessor.  Without
          limiting the generality of the foregoing, examples of the
          foregoing include errors in the APPLICATION PROGRAM,
          normal wear and tear of the MOD5 SOFTWARE, or gradual
          deterioration of the MOD5 SOFTWARE.

               8.4  Lessor's total obligation after the EFFECTIVE
          DATE under this Article shall in no event exceed one
          hundred percent (100%) of the total amount of the
          payments actually received by Lessor under this
          Agreement.

               8.5  Whenever and to the extent validation of MOD5
          SYSTEMS has occurred under FDA regulations to date,
          Lessee shall retain those reports in support of
          validation.  If revalidation of the process control
          system is necessary because of extended requirements of
          the FDA regulations, Lessor shall provide information
          reasonably required.

               8.6  With regard to any FDA validations in progress,
          or those to be conducted in the future, Lessor shall
          provide information reasonably required under FDA
          regulations with respect to MOD5 SYSTEMS validation.

          9.   Liability, Indemnity and Risk of Loss
               Lessee assumes all risks and liabilities, whether or
          not covered by insurance, and shall indemnify and hold
          Lessor and its employees harmless for any liability,
          claim, loss, damage or expense for injuries to or deaths
          of persons and for damage to property, howsoever arising
          from or incident to the possession, use, operation or
          storage of MOD5 SOFTWARE and associated MOD5 HARDWARE,
          and operation of the MOD5 SYSTEM, save and except for any
          matter attributable to the sole negligence or willful
          misconduct of Lessor.  Said assumption of risks and
          liabilities by Lessee shall apply whether such injury or
          death to persons be to agents or employees of Lessee or
          be to third persons and whether such damage be to
          property of Lessee or to property of others.

          10.  MOD5 SOFTWARE Maintenance and Support
               10.1 Throughout the Term hereunder after
          installation of the MOD5 SOFTWARE, Lessee shall maintain
          site conditions to provide an acceptable operating
          environment for the MOD5 SOFTWARE as referenced in
          documentation provided by Lessor.  Lessee is responsible
          for maintenance not provided under the Service Agreement
          attached hereto as Appendix A and installation of the
          MOD5 SOFTWARE.  Lessee will maintain the MOD5 SOFTWARE in
          a current and up-to-date condition adapting the
          APPLICATION PROGRAM to accommodate REMEDIAL PRODUCT
          NOTICES when recommended by Lessor, which will be
          supplied by Lessor or by vendors approved by Lessor. 
          Such adaptations will normally address operating
          reliability.  Lessor will counsel Lessee, as requested
          pursuant to the attached Service Agreement, to accomplish
          the foregoing and Lessee shall permit Lessor or Lessor's
          designee access to the MOD5 SOFTWARE for providing any
          necessary assistance, such access to include network
          access if deemed appropriate.

               10.2   Lessor agrees to supply Maintenance and
          Support Services for MOD5 SOFTWARE, including maintenance
          and adjustment of associated MOD5 HARDWARE, solely in
          accordance with the Service Agreement which is
          incorporated as Appendix A of this Agreement.  Lessor is
          not responsible for supply, maintenance and adjustment of
          the MINICOMPUTER, and other commercially sourced
          computer(s) or commercially sourced operating system(s)
          used in association with MOD5 SOFTWARE.

               10.3  Subject to Lessee's reasonable operating,
          safety and secrecy requirements, Lessee shall grant
          Lessor PLANT access to the MINICOMPUTER and other
          commercially sourced computer(s) used with MOD5 SOFTWARE
          during normal working hours for inspection and
          installation of REMEDIAL PRODUCT NOTICES and for any
          other reasonable purpose, such access to include network
          access if deemed appropriate.  Lessee shall immediately
          notify Lessor of all details concerning any malfunction
          arising out of the alleged or apparent improper
          manufacture, functioning or operation of the MOD5

          SOFTWARE.

               11.  Notices

               Lessee and Lessor agree that notices required
          hereunder shall be deemed received the seventh day after
          mailing, if mailed air postage prepaid to Lessor Lessee
          as the case may be at their respective address given
          below.

                    If to Lessor, to:

                               Rofan Automation and Information
                               Systems B.V.
                               P.O. Box 48
                               4530 AA Terneuzen, The Netherlands
                               Attention:  Hans Naninck, Director

                    If to Lessee, to:

                               Gruppo Lepetit S.p.A.
                               Via Roberto Lepetit 8
                               20020 Lainate, Italy

                               Attention:                         

          Either party may change such address for notice by
          sending to the other party a written notice.

          12.  Severability
               Any provision hereof prohibited by, or unlawful or
          unenforceable under, any applicable law of any
          jurisdiction shall be ineffective as to such jurisdiction
          without invalidating the remaining provisions of this
          Agreement.  In the event a material provision is
          affected, the parties shall reformulate their mutual
          undertakings in such manner as to preserve, as much as
          possible, their original intentions and objects of this
          Agreement, consistent with the laws of such jurisdiction.

          13.  Alterations

               Except for Lessee's remedial modification of
          APPLICATION PROGRAM, no alterations to MOD5 SOFTWARE
          shall be made without first obtaining in each instance
          the prior written approval of Lessor which approval shall
          be expeditiously considered and not be unreasonably
          withheld.

          14.  Conflicts and Assignability

               This Agreement does not operate as an acceptance of
          any conflicting terms or conditions and shall prevail
          over any conflicting provision of any subsequent purchase
          order or other instrument of Lessee, it being understood
          that any purchase order or the request of Lessee acted
          upon by Lessor shall be for the convenience of Lessee
          only but shall not operate to amend or modify in any
          respect the terms hereof.  This Agreement may only be
          altered, modified, supplemented or deviated from by
          further agreement in writing executed by an authorized
          representative of each Lessor and Lessee.  Lessee and
          Lessor acknowledge that by executing this Agreement each
          has reviewed the attachments listed above and each agrees
          to be legally bound and dutifully perform its obligations
          thereunder.  Lessor reserves the right to assign this
          Agreement to a parent, affiliate or sister company of
          Lessor, but otherwise this Agreement shall not be
          assignable by either party except to a successor of the
          entire PLANT, which undertakes all obligations assumed by
          Lessee hereunder by an agreement executed and copied to
          Lessor and to whom Lessor has no reasonable objection.

          15.  Applicable Law
               The laws of the Kingdom of the Netherlands shall be
          applied in the construction and interpretation of this
          Agreement.  No law of conflicts or choice of law shall
          supersede this provision except as provided in Article 6.

               IN WITNESS WHEREOF, the parties have caused this
          Agreement to be executed on their behalf by their duly
          authorized representatives.

          LESSOR:                          LESSEE:

          ROFAN AUTOMATION AND
          INFORMATION SYSTEMS B.V.         GRUPPO LEPETIT S.p.A.

          By:/s/ John C. Lillich           By:/s/ Helio Giglio        

          Name:  John C. Lillich           Name:  Helio Giglio         
           

          Title: Attorney In Fact          Title: Controller          

          Date:  May 3, 1995               Date:  May 3, 1995         

          By:/s/ Jane M. Gootee     

          Name:  Jane M. Gootee     

          Title: Attorney In Fact   

          Date:  May 3, 1995        


                                   APPENDIX A

                                SERVICE AGREEMENT

                                   MAINTENANCE

          1.   Services

               (i)  To facilitate efficient use of MOD5 SOFTWARE,
          Lessor agrees to provide and Lessee agrees to acquire MOD5
          SOFTWARE Maintenance Services as provided hereunder.  Lessee
          has responsibility to acquire, through separate arrangements
          with Lessor or another party, reasonable MOD5 HARDWARE
          training and/or services necessary to apply DOWTRAN to the
          CONTROL SCHEMA and to remedially modify an APPLICATION
          PROGRAM.

               (ii)  Maintenance Services for MOD5 SOFTWARE include
          the notification of and assistance for implementation, where
          necessary, of REMEDIAL PRODUCT NOTICES for MOD5 SOFTWARE and
          remedial maintenance consultation for MOD5 SOFTWARE, MOD5
          HARDWARE, FIRMWARE and other maintenance conducted by
          Lessee.  Repair of subassemblies and printed circuit boards
          will by done by Lessor for Lessee's account, i.e., at
          Lessee's expense, working with the vendor of such
          components.  Acquisition and installation of HARDWARE
          CONSUMABLES shall be the responsibility of Lessee.

               (iii)  Lessor shall provide backup support for MOD5
          SOFTWARE and MOD5 HARDWARE after Lessee has undertaken
          reasonable effort to resolve any MOD5-related problem. 
          Telephone support shall be provided within 24 hours of
          notification of the problem and on-site service shall be
          provided within 48 hours of any such notification.

               (iv)  Lessee shall be responsible for the appointment
          of one or more computer systems professionals or process
          control professionals fluent in the English language having
          a level of technical qualifications and experience
          acceptable to Lessor, whose acceptance will not be
          unreasonably withheld, as manager for the MOD5 SOFTWARE. 
          The MOD5 SOFTWARE manager shall enter into a secrecy
          agreement with Lessor to protect Lessor's technology and
          shall cooperate with Lessor in enabling access to the MOD5
          SOFTWARE when appropriate.

               (v)  "Special Services" reasonably required by Lessee
          at its PLANT sites any time during the Term and upon
          termination of this lease, such as, for example, services
          that may be required to assist Lessee in completing FDA
          validations of process control in progress or for such
          technical support as may be reasonably necessary in
          switching from MOD5 process control to another process
          control system shall be provided by Lessor on reasonable
          notice for a period up to twelve (12) workdays (8 hours per
          workday) over each successive twelve (12) month period
          during the term of this lease measured from its EFFECTIVE
          DATE.  Special Service workdays not used within a given
          twelve (12) month period shall not carry over to a
          subsequent period.

               (vi)  Lessee and Lessor from time to time amy agree on
          additional or new Special Services beyond those agreed in
          this Agreement.  Any such additional or new special Services
          may be agreed to in a MOD5 Special Service Addendum.  For
          each separate request for services from Lessee, Lessor shall
          prepare and submit to Lessee a written service proposal. 
          The parties shall discuss the service proposal and negotiate
          to agreement regarding the nature, scope, terms and detail
          of the work.  If agreement on the total scope is reached,
          the parties shall develop a Special Service Addendum which
          shall define in detail the scope of services and tasks to be
          performed, the schedule for completion and the billing basis
          for such Special Services.  Each MOD5 Special Service
          Addendum shall be effective only if signed by an authorized
          representative of each party.  Each Special Service Addendum
          shall be sequentially numbered.  A sample Special Service
          Addendum is attached as Appendix B.

          2.  Service Limitations

               Services are contingent upon the proper use of the MOD5
          SOFTWARE and the acquisition of associated MOD5 HARDWARE
          suitable for running MOD5 SOFTWARE.  Services do not include
          any of the following:  electrical work external to the
          INTERFACE PROCESSOR, MINICOMPUTER, or other commercially
          sourced computer(s) or commercially sourced operating
          system(s) associated with the MOD5 SYSTEM; replacing or
          providing HARDWARE CONSUMABLES; refinishing MOD5 SOFTWARE;
          or maintenance of accessories, attachments, machines or
          other devices not provided by Lessor.  Service shall not
          include practices which in Lessor's judgment are unsafe or
          impractical for Lessor to render because of alterations to
          the MOD5 SOFTWARE or connection of the PLANTS by mechanical
          or electrical means to machine devices furnished by a
          supplier other than Lessor.  Service will not be performed
          on MOD5 SOFTWARE located in an unsafe or hazardous
          environment, as determined by Lessor.  Service to be
          provided does not include service necessitated by elements
          external to the MOD5 SOFTWARE which are not within Lessor's
          operation or maintenance instructions or installation site
          preparation guidelines including, but not limited to,
          humidity, temperature, power failure, surges, air
          conditioning, grounding, static charge control, service
          resulting from accident, neglect, alterations, improper use
          or misuse of the MOD5 SOFTWARE or by repairs attempted by
          Lessee's personnel or service to a version other than the
          installed version of MOD5 SOFTWARE and MOD5 HARDWARE.

          3.   Service Charges

               (i)  For Maintenance Services described in Article 1
          performed at Lessee's PLANTS, Lessee shall pay Lessor a
          service charge in the amount of Lessor's standard charge for
          such services, plus reasonable travel and living expenses. 
          This fee is presently U.S. $125.00 per hour.

               (ii)  For home based maintenance and support services
          described in Article 1 above conducted at the home locations
          of Lessor and its suppliers, Lessee shall pay Lessor an
          annual fee as shown on Schedule 1 determined by multiplying
          the total number of MOD CANS on which MOD5 SOFTWARE is run
          by a standard service fee in U.S. Dollars.

               (iii)  Special Services pursuant to Article 1(v) shall
          be without charge for up to 2 workdays in a single visit
          within each successive 12 month period during the Term of
          this lease.  For additional workdays and additional visits
          within each 12 month period Lessee shall pay Lessor a
          professional consulting fee of U.S. $150.00 per hour for up
          to an additional 10 workdays.  Lessee shall reimburse Lessor
          for reasonable travel and lodging expenses of such
          consultancy.

               (iv)  Service charges accruing under this Article 3
          will be invoiced and shall be payable within thirty (30)
          days of receipt of an invoice therefor.  Payment for
          services shall be in U.S. Dollars.  In the case of expenses
          incurred in another currency, such expenses shall first be
          translated by Lessor into U.S. Dollars using the daily
          average rate quoted in Amsterdam by Bank Mendes Gans for
          purchase of U.S. Dollars with the expense currency on the
          date of invoice, and then invoiced in U.S. Dollars to
          Lessee.


                                   APPENDIX B

                     MOD5 SPECIAL SERVICE ADDENDUM NO.     
                      (Reference Article 1(vi) Appendix A)

          (A)  Scope of Special Services:

          (B)  Compensation:

          (C)  Term or Schedule of Completion:

          (D)  Changes to Scope of Services:

          (E)  Representatives:

          (F)  Responsibility for Reporting:

          (G)  Termination:

               This Special Service Addendum may be terminated (i) by
               either party with or without cause at any time upon 30
               days written notice, or (ii) by the non-breaching party
               upon 2 days written notice in the event the other party
               fails to cure its breach of a material obligation under
               the Agreement or this Special Service Addendum within
               20 days of its receipt of a notice alleging such breach
               from the other party.  Upon termination of the Special
               Service Addendum, Lessor shall invoice Lessee for all
               services performed by Lessor under this Special Service
               Addendum prior to the termination for which Lessor was
               not previously compensated, and for expenses necessary
               to shut down the project.

          ACCEPTED AND AGREED, as of the later of the two dates noted
          in the signature blocks, by each Party's authorized
          representative.


          Lessor:                          Lessee:

          ROFAN AUTOMATION AND             GRUPPO LEPETIT S.p.A.
          INFORMATION SYSTEMS B.V.

          By:                              By:                      
          Name:                            Name:                    

          Title:                           Title:                   
          Date:                            Date:                    


                                  SCHEDULE 1

                             LEASED MOD5 SOFTWARE

                                NUMBER OF        LEASE          ANNUAL
SITE            PLANT           MOD CANS        CHARGES      SUPPORT FEES

BRINDISI,       FERMENTATION        5           NONE         U.S.$6,500.00
ITALY                                           (ANTEDATES
                                                  LEASING)

MOD5 SYSTEMS DESCRIPTION:

     NUMBER OF SYSTEMS:             1

     VERSION:
       CPU:                  MOD5 +
       OVERHEAD SOFTWARE:    REL. 0643
       GPI:                  REL. V 2.00
       DSS:                  REL. V 2.00
       MODSERVER
         HARDWARE:           AS STADE STANDARD
         SOFTWARE:           REL. V 2.0e

BRINDISI,    RIFA RECOVERY          2           U.S.$16,800.00  U.S.$2,600.00
ITALY                                                          
                                    5           NONE            U.S.$6,500.00
                                                (ANTEDATES 
                                                  LEASING)

MOD5 SYSTEMS DESCRIPTION:

     NUMBER OF SYSTEMS:      2
     VERSION:
       CPU:                  MOD5 +
       OVERHEAD SOFTWARE:    REL. 0643
       GPI:                  REL. V 2.00
       DSS:                  REL. V 2.00
       MODSERVER 
         HARDWARE:           AS STADE STANDARD
         SOFTWARE:           REL. V 2.0e


                                NUMBER OF        LEASE          ANNUAL
SITE            PLANT            MOD CANS       CHARGES      SUPPORT FEES

BRINDISI,       CHEMICAL             5      U.S. $16,800.00  U.S.$6,500.00
ITALY           DEVELOPMENT
                PILOT

MOD5 SYSTEM DESCRIPTION:

     NUMBER OF SYSTEMS:      1

     VERSION:
       CPU:                  MOD5 +
       OVERHEAD SOFTWARE:    REL. 0643
       GPI:                  REL. V 2.00
       DSS:                  REL. V 2.00
       MODSERVER
         HARDWARE:           AS STADE STANDARD
         SOFTWARE:           REL. V 2.0e

GARESSIO,    BUILDING 1      8 +      NONE          U.S.$11,700.00
ITALY                                                          
                             1 SPARE  (ANTEDATES 
                                        LEASING)

MOD5 SYSTEM DESCRIPTION:

     NUMBER OF SYSTEMS:    2 + 1 SPARE
     VERSION:
       CPU:                MOD5 +
       OVERHEAD SOFTWARE:  COMPILER VERSION 6.43**
       GPI:                2.11
       DSS:                VAX VMS 5.5-2

*CPU MOD5 + TO BE REPLACED WITH MOD5E BY JULY 1995.

**A CHANGE TO COMPILER VERSION 7.7 IS PLANNED.



                                 NUMBER OF       LEASE          ANNUAL
SITE            PLANT            MOD CANS       CHARGES      SUPPORT FEES

GARESSIO,
ITALY           DISTILLERY           2          NONE           U.S.$2,600.00
                                                (ANTEDATES LEASING)

                                     1          U.S.$8,400.00  U.S.$1,300.00

                                 (TO BE INSTALLED
                                 BY JUNE 1995)

MOD5 SYSTEM DESCRIPTION:

NUMBER OF SYSTEMS:       2 + 1 SPARE
VERSION:
  CPU:                   MOD5 +
  OVERHEAD SOFTWARE:     COMPILER VERSION 6.43**
  GPI:                   2.11
  DSS:                   VAX VMS 5.5-2

*CPU MOD5 + TO BE REPLACED WITH MOD5E BY JULY 1995.

**A CHANGE TO COMPILER VERSION 7.7 IS PLANNED.

                                                ____________   ______________

TOTAL ANNUAL LEASE CHARGES:                     U.S.$42,000.00

TOTAL ANNUAL SUPPORT FEES:                                     U.S.$33,800.00



                      PERSONAL CONFIDENTIALITY AGREEMENT

          DECLARATIONS:

               The undersigned employee of GRUPPO LEPETIT S.p.A.
          (Gruppo) has certain responsibilities for maintaining and
          operating MOD5 SYSTEMS for manufacturing process control.

               The undersigned Affiliate of The Dow Chemical
          Company (Dow) is willing to continue supporting MOD5
          SYSTEMS used by Gruppo according to the terms of the
          "Computerized Process Control Software Agreement" entered
          into between Affiliate and Gruppo with the proviso that
          the latter appoint a MOD5 SOFTWARE technical manager with
          appropriate competencies in the English language and
          pertinent technical qualifications.

          ASSURANCES:

               The undersigned acknowledges he/she has been
          assigned such responsibilities regarding MOD5 SYSTEMS by
          Gruppo and affirms:

               1.   That he/she is familiar with the "Computerized
          Process Control Software Agreement" mentioned above,
          including those terms thereof regarding confidentiality
          of Information.

               2.   That pursuant to the terms of the Agreement
          he/she will not disclose to others proprietary
          information about MOD5 SYSTEMS nor make any unauthorized
          copies of documents containing such information, and
          moreover agrees that no personal rights to sue any
          information acquired in working with MOD5 SYSTEMS are
          expressly or impliedly acquired hereunder.

               It is understood by the undersigned and Affiliate of
          Dow that these obligations shall not apply to Information
          which is or becomes part of the public domain through no
          fault of the undersigned or is received by the
          undersigned on a nonconfidential basis from a third party
          who is not under an obligation of confidence to Dow or a
          Dow Affiliate.

          ACCEPTED BY
                                                 ROFAN AUTOMATION AND
          Gruppo Representative:                 INFORMATION SYSTEMS
          B.V.

          By:                                    By:                 

          Name:                                  Name:               
          Title:                                 Title:              

          Date:                                  Date:               




                                                            EXHIBIT 11


               COMPUTERIZED PROCESS CONTROL SOFTWARE AGREEMENT
                            (LEASES AND SERVICES)

               This lease and service agreement, hereinafter
          "Agreement," is made and entered into effective May 3,
          1995, by and between ROFAN AUTOMATION AND INFORMATION
          SYSTEMS B.V. (hereinafter "Lessor") and BIOCHIMICA DEL
          SALENTO S.p.A. (hereinafter "Lessee"), located at:

               LESSOR:                     ROFAN AUTOMATION AND
                                           INFORMATION SYSTEMS
                                           B.V.
               Address:                    Aert van Nesstraat 45
                                           3012 CA Rotterdam, The
                                           Netherlands

               Corporation of:  Kingdom of the Netherlands
               Authorized leasing representative for MOD5 SYSTEMS.

               LESSEE:                     BIOCHIMICA DEL SALENTO
                                           S.p.A.
               Address:                    Via Murat 25
                                           20159, Milan, Italy

               Corporation of:  Italy

               Lessor and Lessee hereby agree this Agreement
          consists in its entirety of this executed covering
          document and the following attachments:

               APPENDIX A - SERVICE AGREEMENT
               APPENDIX B - MOD5 SPECIAL SERVICE ADDENDUM

               SCHEDULE 1 - LEASED MOD5 SOFTWARE

               Lessor agrees to lease to Lessee and Lessee agrees
          to lease from Lessor in accordance with the terms and
          conditions of this Agreement MOD5 SOFTWARE as delineated
          in Schedule 1 to integrally generate, transmit and manage
          process control at the PLANTS listed in Schedule 1
          attached hereto and made a part hereof.  This Agreement
          constitutes the entire understanding between Lessee and
          Lessor pertaining to all MOD5 SOFTWARE for Lessee's
          PLANTS and supersedes any prior or contemporaneous
          agreements and all negotiations, representations and
          proposals written or oral pertaining to this subject.

          1.   Definitions

               Terms used in this Agreement shall have the meanings
          ascribed to them as follows:

          1.1  Software Definitions

               (a)  MOD5 SOFTWARE means (1) MOD5 CAN SOFTWARE, (2)
          SERIAL GRAPHICS SOFTWARE, and (3) GPI based on specially
          designed, direct digital control, redundant computer
          technology to provide process control and process
          operation information for execution on MOD5 HARDWARE.

               (b)   M0D5 SYSTEM is a specific implementation of
          M0D5 HARDWARE AND M0D5 SOFTWARE in a PLANT.  Within a
          given PLANT there may be one or more M0D5 SYSTEMS.

               (c)  M0D5 CAN SOFTWARE means M0D5 OVERHEADS
          including associated FIRMWARE, DOWTRAN SUPPORT TOOLS, and
          M0D5 COMPLIER.

               (d)  FIRMWARE is a physical means containing
          electronically retrievable information pertaining to M0D5
          SOFTWARE.

               (e)  INTERFACE PROCESSOR is a functional
          interconnection  within a system between the M0D5
          OVERHEADS and other M0D5 SOFTWARE, which contains
          hardware, dedicated executable software, and FIRMWARE.

               (f)  DOWTRAN is a specific language designed for the
          process control application engineer to convert and
          express the CONTROL SCHEMA into an APPLICATION PROGRAM
          for a manufacturing process.  The APPLICATION PROGRAM is
          further transformed into COMPILED DOWTRAN using a M0D5
          COMPILER.

               (g)  M0D5 OVERHEADS means the redundantly deployed,
          executable operating system software and, optionally,
          protocol use rights, for the M0D5 COMPUTER that executes
          the COMPILED DOWTRAN and implements diagnostics, inputs,
          outputs, alarms and event logging.

               (h)  DOWTRAN SUPPORT TOOLS are utility programs
          which execute on the MINICOMPUTER to assist the
          application engineer in writing the APPLICATION PROGRAM
          in DOWTRAN.

               (i)  APPLICATION PROGRAM is the set of sequential
          human readable representations of the evolving CONTROL
          SCHEMA in DOWTRAN, where the set is designated with an
          essentially consistently logical identifier.

               (j)  COMPILED DOWTRAN is the set of respective
          sequential instances of machine readable code,
          redundantly deployed, which results from the compilation
          process executed by the M0D5 COMPILER to convert the
          APPLICATION PROGRAM written in DOWTRAN into said machine
          readable code.

               (k)  CONTROL SCHEMA comprises the entire collection
          of concepts, process dynamics and control models, and
          associated decision models which are referenced to
          defined the APPLICATION PROGRAM.

               (l)  M0D5 COMPILER is a computer program which
          executes on the MINICOMPUTER to produce COMPILED DOWTRAN
          from the APPLICATION PROGRAM written in the DOWTRAN
          language.

               (m)  GPI means an executable subset of process
          information and related software specially designed and
          developed for execution on the MINICOMPUTER which
          displays and stores process information and related
          information to assist operations personnel.

               (n)  SERIAL GRAPHICS SOFTWARE means Lessor supplied
          software, associated FIRMWARE, and PROTOCOL use rights to
          implement SERIAL GRAPHICS.

          1.2  Associated Hardware Definitions

               (a)  M0D5 HARDWARE means a user defined hardware
          configuration designed to implement the M0D5 CAN SOFTWARE
          which comprises two or more MOD CANS, two or more M0D5
          COMPUTERS, and one or more INTERFACE PROCESSORS.  M0D5
          HARDWARE further comprises the Lessor specified hardware
          (excluding FIRMWARE) resident within the M0D5 COMPUTER
          which is used in the linking of the M0D5 COMPUTER to at
          least one INTERFACE PROCESSOR.

               (b)  MOD CAN is a modular input/output device with
          associated electronics which receives inputs and
          originates output relative to PLANT instrumentation.

               (c)  M0D5 COMPUTER is a Lessor specified, high speed
          control computer.

               (d)  MINICOMPUTER is a member of a family of
          computers manufactured by the Digital Equipment
          Corporation comprising VAX (or, optionally, AXP) hardware
          executing the currently supported version of the VMS (or,
          optionally, Open VMS) operating system specified by
          Lessor, said computers otherwise referred to as VAX/VMS
          (or, optionally, AXP/Open VMS) systems, to be separately
          acquired by Lessee.

               (e)  SERIAL GRAPHICS is a programmable display panel
          means which executes SERIAL GRAPHICS SOFTWARE for
          consistent holistic display of immediate (REAL-TIME)
          information, within the context of a fixed pictorial
          background, depicting the status of a set of PROCESS
          CONTROL SIGNALS in the domain of a particular APPLICATION
          PROGRAM as its served COMPILED DOWTRAN executes on its
          affiliated redundant M0D5 COMPUTER system.  The SERIAL
          GRAPHICS programmable display panel system communicates
          with its affiliated redundant M0D5 COMPUTER system using
          a network protocol.

          1.3  Miscellaneous Definitions

               (a)  PROCESS CONTROL SIGNALS is the set of analog
          inputs, analog outputs, digital inputs, digital outputs
          and the individual instances of process variables
          contained within serial data messages transmitted to/from
          the M0D5 OVERHEADS utilized to implement an APPLICATION
          PROGRAM at a given PLANT.

               (b)  HARDWARE CONSUMABLES include, without
          limitation, fuses, light bulbs, chart paper and other
          such utility sundry items.

               (c)  REMEDIAL PRODUCT NOTICE is a change in hardware
          design and/or software design and/or announcements of
          procedures as may be desirable for continuing
          effectiveness.

               (d)  REAL-TIME is generically defined as a method of
          executing the M0D5 OVERHEADS in a M0D5 COMPUTER in which
          an event causes a given reaction within an actual time
          limit and wherein M0D5 COMPUTER actions are specifically
          controlled within the context of and by external
          conditions and actual times.

               (e)  PLANT means Lessee's facilities referred to in
          the attached Schedule 1.  M0D5 SYSTEMS for each PLANT are
          specified by the number of CANS, and the installed
          version of computer processing unit(s), M0D5 OVERHEADS,
          GPI and DOWTRAN respectively.

               (f)  EFFECTIVE DATE is the date first set forth
          above.

          2.   Term

               The Term of this Agreement shall begin on the
          EFFECTIVE DATE hereof and, subject to the provisions
          herein for termination, shall continue for a period of
          five (5) years.  Lessee may extend this Term for an
          additional six (6) months on ninety (90) days advance
          notice.  Lessee may terminate this lease as to any M0D5
          SYSTEM at any time during the Term of this agreement on
          ninety (90) days advance written notice to Lessor.  The
          obligations of Article 6 shall survive any expiration or
          accelerated termination of this Agreement for a period of
          ten (10) years from the EFFECTIVE DATE.

          3.   Payments

               3.1  Lease Charges  Lease charges for M0D5 SOFTWARE
          leased hereunder are set forth in the accompanying
          Schedule 1.  These charges shall be invoiced within
          thirty (30) days of the EFFECTIVE DATE and upon each
          yearly anniversary thereof during the term of this
          Agreement and shall be payable within thirty (30) days of
          receipt of an invoice therefor.

               3.2  Taxes  Lessee shall pay all taxes, however
          designated, which are levied or based on the lease
          including, without limitation, property taxes, local fees
          or excise taxes, but excluding taxes thereon based on
          income to Lessor.  In the event Lessee defaults in the
          payment of any such tax, Lessor may pay such tax and
          shall be reimbursed by Lessee, with interest, as
          additional lease charges.

          4.   Terms of Possession and Use

               4.1  Lessor and Lessee agree that all M0D5 SOFTWARE
          leased by Lessor hereunder will be kept by Lessee in its
          sole possession and control and will at all times be
          located at the PLANTS designated in the attached Schedule
          1.  The parties will mutually cooperate to keep Schedule
          1 current as to installed M0D5 SYSTEMS at each PLANT.

               4.2  Lessee shall enjoy all rights of possession and
          use of M0D5 SOFTWARE leased hereunder subject to Lessor's
          rights under Paragraph 4.3, upon the occurrence of one or
          more of the following conditions:

                    (a)  Lessee breaches the secrecy obligations of
               Article 6;

                    (b)  Lessee fails to make payments within sixty
               (60) days after notice of payments in arrears;

                    (c)  lessee ceases to own or control facilities
               in which M0D5 SYSTEMS are installed, unless Lessee's
               transfer of ownership or control occurs pursuant to
               Article 14;

                    (d)  Lessee ceases to use M0D5 SYSTEMS, or uses
               them for a purpose other than their original
               installation, or modifies them by integrally
               combining internal M0D5 SYSTEM physical or logical
               components with systems of others with the proviso
               that when switching from a M0D5 SYSTEM to a
               different process control system at a given PLANT
               the M0D5 SYSTEM may be operated (as far as
               reasonably possible in decoupled status) in parallel
               with the other system;

                    (e)  Lessor is prevented by a Force Majeure
               condition from supporting M0D5 SOFTWARE acquired by
               Lessee hereunder.

                    (f)  Lessee terminates this Agreement totally
               or in part as to any M0D5 SYSTEM.

               4.3  In the event one or more conditions of
          Paragraphs 4.2(a), (b), (c), (d), or (e) occurs, Lessor
          may terminate this Agreement and its support of M0D5
          SYSTEMS and M0D5 SOFTWARE shall be returned to Lessor. 
          In the event Lessee exercises rights of unilateral
          termination under Paragraph 4.2(f), Lessor will terminate
          its support of such MOD5 SYSTEM and MOD5 SOFTWARE
          associated with such SYSTEM shall be returned to Lessor,
          subject to Lessee rights specified in Article 5.  Lessee
          will permit reasonable access of Lessor to the PLANTS to
          assist in the removal and return of M0D5 SOFTWARE.

          5.   Lessor Property

               5.1  Lessor and Lessee agree that all MOD5 SOFTWARE
          leased hereunder remains the personal property of Lessor
          or Lessor's grantor and, subject to Lessee's reasonable
          operating, safety and secrecy requirements.  Lessee shall
          permit access of Lessor or lessor's designee to the
          PLANTS at any time after termination of this Agreement to
          permit removal of the same.  Lessee will keep and
          maintain the MOD5 SOFTWARE free and clear of all liens,
          charges and encumbrances.

               5.2  The glossaried and commented DOWTRAN language
          listing of the APPLICATION PROGRAM produced by Lessee
          shall be considered derivative software and, as such, it
          is owned by Lessee with the proviso that Lessee will
          diligently pursue protecting Lessor's interests pursuant
          to Article 6.  To facilitate Lessee's understanding of
          the retained derivative APPLICATION PROGRAM, Lessee may
          also retain the accompanying DOWTRAN application training
          manuals and any cross references to sub-routine listings
          in the APPLICATION PROGRAM.  Upon expiration of this
          lease these written materials retained by Lessee shall be
          considered proprietary information of Lessor licensed to
          Lessee subject to the terms of Article 6.  The compiled
          DOWTRAN listing from the M0D5 COMPILER is property of and
          shall be returned to Lessor along with M0D5 SOFTWARE.

          6.   Confidentiality

               6.1  MOD5 SYSTEMS comprise unique, valuable,
          proprietary information.  Lessee agrees to maintain and
          protect Lessor's interests in proprietary information and
          will accordingly keep all information pertaining to M0D5
          SYSTEMS in confidence and not use the same except as is
          necessary to the enjoyment and exercise of the leases
          granted by Lessor hereunder at the PLANTS listed in the
          attached Schedule 1.  Lessee will take diligent action to
          fulfill the foregoing obligations by instruction and
          agreement with its employees or agents respecting the
          confidentiality of this information and shall obtain from
          them their written commitments to comply with terms of
          confidentiality.

               6.2  Lessee shall adhere to the U.S. Export
          Administration Laws and Regulations and shall not
          knowingly reexport, directly or indirectly, any MOD5M
          SOFTWARE or MOD5 HARDWARE, or any technical data received
          from Lessor or the direct products of such technical data
          in violation of 15 CFR Part 779 of the U.S. Export
          Administration Regulations unless proper authorization of
          the U.S. Government and the written consent of Lessor
          have previously been obtained.  No law of conflicts or
          choice of law shall supersede this provision.

          7.   Software Copies

               M0D5 SOFTWARE may only be copied, in whole or part,
          with property inclusion of Lessor's copyright notice and
          any other proprietary notice required by Lessor, as
          necessary and incidental to the use of such software for
          archival and backup purposes or to replace a worn or
          defective copy.  All such copies shall be subject to the
          terms and conditions of this Agreement and shall be kept
          and used at the designated PLANTS.  If Lessee is unable
          to operate the MOD5 SOFTWARE on originally installed
          equipment, the MOD5 SOFTWARE may be transferred
          temporarily to another system during the period of
          equipment malfunction.

          8.   Warranties, Disclaimers and Validations

               8.1  THE EXPRESSED WARRANTIES HEREIN CONTAINED ARE
          IN LIEU OF ANY AND ALL OTHER WARRANTIES, EXPRESS OR
          IMPLIED, INCLUDING THE WARRANTY OF MERCHANTABILITY AND OF
          FITNESS FOR A PARTICULAR PURPOSE.  Lessor warrants that
          M0D5 SOFTWARE as delivered will operate substantially as
          indicated in documentation provided by the Lessor and
          will replace or provide instructions to adjust
          malfunctioning components of MOD5 SOFTWARE on receiving
          notice thereof from Lessee.  Lessor will expeditiously
          address the notice, with, alternatively at Lessor's
          discretion, replacement of the component with a currently
          available MOD5 SOFTWARE component or instructions for
          corrective logical modification of, or other
          accommodative procedure for, the MOD5 SOFTWARE addressing
          the malfunction.  Lessee shall promptly, upon discovery,
          notify Lessor of any alleged deficiency which may exist.

               8.2  Lessor warrants that the MOD5 SOFTWARE as
          delivered by Lessor under this Agreement shall not
          infringe copyrights or patent rights of a third party
          existing on the EFFECTIVE DATE.  Upon prompt written
          notice from Lessee providing all pertinent details of a
          claim of such asserted infringement, Lessor will
          undertake to investigate and at Lessor's expense to
          settle or to defend against such a claim, provided Lessee
          grants any necessary authority and gives its full support
          and cooperation, or to obtain the right for Lessee to
          continue to use the MOD5 SOFTWARE, or to replace or
          modify the allegedly infringing components of the MOD5
          SOFTWARE which Lessor has so delivered to avoid any such
          claim that is found to be valid.  Without prejudice to
          the generality of the foregoing, such expense shall
          extend to reasonable attorneys' fees incurred by Lessee
          in respect of such claim.  If an award is rendered
          against Lessee, in any litigation that the Lessor defends
          hereunder for infringement by the components of the MOD5
          SOFTWARE which lessor has so delivered, then Lessor shall
          reimburse Lessee for damages and costs awarded by the
          judicial authority in respect to those components.

               8.3  Lessee acknowledges that it is responsible for
          each APPLICATION PROGRAM and is not relying on Lessor's
          skill or judgment to select or furnish MOD5 SOFTWARE and
          associated MOD5 HARDWARE suitable for operation of a
          particular manufacturing process and that there are no
          warranties which are not contained in this Agreement. 
          Lessee acknowledges that it has made the selection of the
          associated MOD5 HARDWARE.  Lessor shall not be liable for
          special, incidental or consequential damages arising out
          of or in connection with the performance of systems
          utilizing MOD5 SOFTWARE and associated MOD5 HARDWARE. 
          Lessor shall not be responsible for any loss or damage
          caused by, nor shall any payments due hereunder abate by
          reason of, any interruption in or loss of service or use
          of the equipment or any part thereof arising from any
          reason not solely attributable to Lessor.  Without
          limiting the generality of the foregoing, examples of the
          foregoing include errors in the APPLICATION PROGRAM,
          normal wear and tear of the MOD5 SOFTWARE, or gradual
          deterioration of the MOD5 SOFTWARE.

               8.4  Lessor's total obligation after the EFFECTIVE
          DATE under this Article shall in no event exceed one
          hundred percent (100%) of the total amount of the
          payments actually received by Lessor under this
          Agreement.

               8.5  Whenever and to the extent validation of MOD5
          SYSTEMS has occurred under FDA regulations to date,
          Lessee shall retain those reports in support of
          validation.  If revalidation of the process control
          system is necessary because of extended requirements of
          the FDA regulations, Lessor shall provide information
          reasonably required.

               8.6  With regard to any FDA validations in progress,
          or those to be conducted in the future, Lessor shall
          provide information reasonably required under FDA
          regulations with respect to MOD5 SYSTEMS validation.

          9.   Liability, Indemnity and Risk of Loss
               Lessee assumes all risks and liabilities, whether or
          not covered by insurance, and shall indemnify and hold
          Lessor and its employees harmless for any liability,
          claim, loss, damage or expense for injuries to or deaths
          of persons and for damage to property, howsoever arising
          from or incident to the possession, use, operation or
          storage of MOD5 SOFTWARE and associated MOD5 HARDWARE,
          and operation of the MOD5 SYSTEM, save and except for any
          matter attributable to the sole negligence or willful
          misconduct of Lessor.  Said assumption of risks and
          liabilities by Lessee shall apply whether such injury or
          death to persons be to agents or employees of Lessee or
          be to third persons and whether such damage be to
          property of Lessee or to property of others.

          10.  MOD5 SOFTWARE Maintenance and Support

               10.1 Throughout the Term hereunder after
          installation of the MOD5 SOFTWARE, Lessee shall maintain
          site conditions to provide an acceptable operating
          environment for the MOD5 SOFTWARE as referenced in
          documentation provided by Lessor.  Lessee is responsible
          for maintenance not provided under the Service Agreement
          attached hereto as Appendix A and installation of the
          MOD5 SOFTWARE.  Lessee will maintain the MOD5 SOFTWARE in
          a current and up-to-date condition adapting the
          APPLICATION PROGRAM to accommodate REMEDIAL PRODUCT
          NOTICES when recommended by Lessor, which will be
          supplied by Lessor or by vendors approved by Lessor. 
          Such adaptations will normally address operating
          reliability.  Lessor will counsel Lessee, as requested
          pursuant to the attached Service Agreement, to accomplish
          the foregoing and Lessee shall permit Lessor or Lessor's
          designee access to the MOD5 SOFTWARE for providing any
          necessary assistance, such access to include network
          access if deemed appropriate.

               10.2 Lessor agrees to supply Maintenance and Support
          Services for MOD5 SOFTWARE, including maintenance and
          adjustment of associated MOD5 HARDWARE, solely in
          accordance with the Service Agreement which is
          incorporated as Appendix A of this Agreement.  Lessor is
          not responsible for supply, maintenance and adjustment of
          the MINICOMPUTER, and other commercially sourced
          computer(s) or commercially sourced operating system(s)
          used in association with MOD5 SOFTWARE.

               10.3 Subject to Lessee's reasonable operating,
          safety and secrecy requirements, Lessee shall grant
          Lessor PLANT access to the MINICOMPUTER and other
          commercially sourced computer(s) used with MOD5 SOFTWARE
          during normal working hours for inspection and
          installation of REMEDIAL PRODUCT NOTICES and for any
          other reasonable purpose, such access to include network
          access if deemed appropriate.  Lessee shall immediately
          notify Lessor of all details concerning any malfunction
          arising out of the alleged or apparent improper
          manufacture, functioning or operation of the MOD5
          SOFTWARE.

          11.  Notices
               Lessee and Lessor agree that notices required
          hereunder shall be deemed received the seventh day after
          mailing.  If mailed air postage prepaid to Lessor or
          Lessee as the case may be at their respective address
          given below.

               If to Lessor, to:
                                           Rofan Automation and Information 


                                           Systems B.V.
                                           P.O. Box 48
                                           4530 AA Terneuzen, 
                                           The Netherlands

                                           Attention: Hans Naninck, Director

               If to Lessee, to:           Biochimica del Salento S.p.A.
                                           Via Murat 25
                                           20159 Milan, Italy

                                           Attention:                       

          Either party may change such address for notice by
          sending to the other party a written notice.

          12.  Severability
               Any provision hereof prohibited by, or unlawful or
          unenforceable under, any applicable law of any
          jurisdiction shall be ineffective as to such jurisdiction
          without invalidating the remaining provisions of this
          Agreement.  In the event a material provision is
          affected, the parties shall reformulate their mutual
          undertakings in such manner as to preserve, as much as
          possible, their original intentions and objects of this
          Agreement, consistent with the laws of such jurisdiction.

          13.  Alterations

               Except for Lessee's remedial modification of
          APPLICATION PROGRAM, no alterations to MOD5 SOFTWARE
          shall be made without first obtaining in each instance
          the prior written approval of Lessor which approval shall
          be expeditiously considered and not be unreasonably
          withheld.

          14.  Conflicts and Assignability

               This Agreement does not operate as an acceptance of
          any conflicting terms or conditions and shall prevail
          over any conflicting provision of any subsequent purchase
          order or other instrument of Lessee, it being understood
          that any purchase order or the request of Lessee acted
          upon by Lessor shall be for the convenience of Lessee
          only but shall not operate to amend or modify in any
          respect the terms hereof.  This Agreement may only be
          altered, modified, supplemented or deviated from by
          further agreement in writing executed by an authorized
          representative of each Lessor and Lessee.  Lessee and
          Lessor acknowledge that by executing this Agreement each
          has reviewed the attachments listed above and each agrees
          to be legally bound and dutifully perform its obligations
          thereunder.  Lessor reserves the right to assign this
          Agreement to a parent, affiliate or sister company of
          Lessor, but otherwise this Agreement shall not be
          assignable by either party to a successor of the entire
          PLANT, which undertakes all obligations assumed by Lessee
          hereunder by an agreement executed and copied to Lessor
          and to whom Lessor has no reasonable objection.

          15.  Applicable Law
               The laws of the Kingdom of the Netherlands shall be
          applied in the construction and interpretation of this
          Agreement.  No law of conflicts or choice of law shall
          supersede this provision except as provided in Article 6.

               IN WITNESS WHEREOF, the parties have caused this
          Agreement to be executed on their behalf by their duly
          authorized representatives.

     LESSOR:                                LESSER:

     ROFAN AUTOMATION AND
     INFORMATION SYSTEMS B.V.               BIOCHIMICA DEL SALENTO
                                             S.p.A.

     By: /s/ John C. Lillich                By: /s/ Helio Giglio     

     Name:   John C. Lillich                Name:   Helio Giglio     

     Title:  Attorney In Fact               Title:  Controller       

     Date:   May 3, 1995                    Date:   May 3, 1995      

     By: /s/ Jane M. Gootee    

     Name:   Jane M. Gootee   
     Title:  Attorney In Fact  

     Date:   May 3, 1995       


                                  APPENDIX A
                              SERVICE AGREEMENT

                                 MAINTENANCE

          1.   Services

               (i)  To facilitate efficient use of MOD5 SOFTWARE,
          Lessor agrees to provide and Lessee agrees to acquire
          MOD5 SOFTWARE Maintenance Services as provided hereunder. 
          Lessee has responsibility to acquire, through separate
          arrangements with Lessor or another party, reasonable
          MOD5 HARDWARE training and/or services necessary to apply
          DOWTRAN to the CONTROL SCHEMA and to remedially modify an
          APPLICATION PROGRAM.

              (ii)  Maintenance Services for MOD5 SOFTWARE include
          the notification of and assistance for implementation,
          where necessary, of REMEDIAL PRODUCT NOTICES for MOD5
          SOFTWARE and remedial maintenance consultation for MOD5
          SOFTWARE, MOD5 HARDWARE, FIRMWARE and other maintenance
          conducted by Lessee.  Repair of subassemblies and printed
          circuit boards will be done by Lessor for Lessee's
          account, i.e., at Lessee's expense, working with the
          vendor of such components.  Acquisition and installation
          of HARDWARE CONSUMABLES shall be the responsibility of
          Lessee.

             (iii)  Lessor shall provide backup support for MOD5
          SOFTWARE and MOD5 HARDWARE after Lessee has undertaken
          reasonable effort to resolve any MOD5-related problem. 
          Telephone support shall be provided within 24 hours of
          notification of the problem and on-site service shall be
          provided within 48 hours of any such notification.

              (iv)  Lessee shall be responsible for the appointment
          of one or more computer systems professionals or process
          control professionals fluent in the English language
          having a level of technical qualifications and experience
          acceptable to Lessor, whose acceptance will not be
          unreasonably withheld, as manager for the MOD5 SOFTWARE. 
          The MOD5 SOFTWARE manager shall enter into a secrecy
          agreement with Lessor to protect Lessor's technology and
          shall cooperate with Lessor in enabling access to the
          MOD5 SOFTWARE when appropriate.

               (v)  "Special Services" reasonably required by
          Lessee at its PLANT sites any time during the Term and
          upon termination of this lease, such as, for example,
          services that may be required to assist Lessee in
          completing FDA validations of process control in progress
          or for such technical support as may be reasonably
          necessary in switching from MOD5 process control to
          another process control system shall be provided by
          Lessor on reasonable notice for a period up to twelve
          (12) workdays (8 hours per workday) over each successive
          twelve (12) month period during the term of this lease
          measured from its EFFECTIVE DATE.  Special Service
          workdays not used within a given twelve (12) month period
          shall not carry over to a subsequent period.

              (vi)  Lessee and Lessor from time to time may agree
          on additional or new Special Services beyond those agreed
          in this Agreement.  Any such additional or new Special
          Services may be agreed to in a MOD5 Special Service
          Addendum.  For each separate request for services from
          Lessee, Lessor shall prepare and submit to Lessee a
          written service proposal.  The parties shall discuss the
          service proposal and negotiate to agreement regarding the
          nature, scope, terms and detail of the work.  If
          agreement on the total scope is reached, the parties
          shall develop a Special Service Addendum which shall
          define in detail the scope of services and tasks to be
          performed, the schedule for completion and the billing
          basis for such Special Services.  Each MOD5 Special
          Service Addendum shall be effective only if signed by an
          authorized representative of each party.  Each Special
          Service Addendum shall be sequentially numbered.  A
          sample Special Service Addendum is attached as Appendix

          B.

          2.   Service Limitations
               Services are contingent upon the proper use of the
          MOD5 SOFTWARE and the acquisition of associated MOD5
          HARDWARE suitable for running MOD5 HARDWARE.  Services do
          not include any of the following:  electrical work
          external to the INTERFACE PROCESSOR, MINICOMPUTER, or
          other commercially sourced computer(s) or commercially
          sourced operating system(s) associated with the MOD5
          SYSTEM; replacing or providing HARDWARE CONSUMABLES:
          refinishing MOD5 SOFTWARE; or maintenance of accessories,
          attachments, machines or other devices not provided by
          Lessor.  Service shall not include practices which in
          Lessor's judgment are unsafe or impractical for Lessor to
          render because of alterations to the MOD5 SOFTWARE or
          connection of the PLANTS by mechanical or electrical
          means to machine devices furnished by a supplier other
          than Lessor.  Service will not be performed on MOD5
          SOFTWARE located in an unsafe or hazardous environment,
          as determined by Lessor.  Service to be provided does not
          include service necessitated by elements external to the
          MOD5 SOFTWARE which are not within Lessor's operation or
          maintenance instructions or installation site preparation
          guidelines including, but not limited to, humidity,
          temperature, power failure, surges, air conditioning,
          grounding, static charge control, service resulting from
          accident, neglect, alterations, improper use or misuse of
          the MOD5 SOFTWARE or by repairs attempted by Lessee's
          personnel or service to a version other than the
          installed version of MOD5 SOFTWARE and MOD5 HARDWARE.

          3.   Service Charges

               (i)  For Maintenance Services described in Article 1
          performed at Lessee's PLANTS, Lessee shall pay Lessor a
          service charge in the amount of Lessor's standard charge
          for such services, plus reasonable travel and living
          expenses.  This fee is presently U.S. $125.00 per hour.

              (ii)  For home based maintenance and support services
          described in Article 1 above conducted at the home
          locations of Lessor and its suppliers, Lessee shall pay
          Lessor an annual fee as shown on Schedule 1 determined by
          multiplying the total number of MOD CANS on which MOD5
          SOFTWARE is run by a standard service fee in U.S.
          Dollars.

             (iii)  Special Services pursuant to Article 1(v) shall
          be without charge for up to 2 workdays in a single visit
          within each successive 12 month period during the Term of
          this lease.  For additional workdays and additional
          visits within each 12 month period Lessee shall pay
          Lessor a professional consulting fee of U.S. $150.00 per
          hour for up to an additional 10 workdays.  Lessee shall
          reimburse Lessor for reasonable travel and lodging
          expenses of such consultancy.

               (iv) Service charges accruing under this Article 3
          will be invoiced and shall be payable within thirty (30)
          days of receipt of an invoice therefor.  Payment for
          services shall be in U.S. Dollars.  In the case of
          expenses incurred in another currency, such expenses
          shall first be translated by Lessor into U.S. Dollars
          using the daily average rate quoted in Amsterdam by Bank
          Mendes Gans for purchase of U.S. Dollars with the expense
          currency on the date of invoice, and then invoiced in
          U.S. Dollars to Lessee.


                                  APPENDIX B
                    MOD5 SPECIAL SERVICE ADDENDUM NO. ___

                     (Reference Article 1(vi) Appendix A)

          (A)  Scope of Special Services:

          (B)  Compensation:

          (C)  Term or Schedule of Completion:

          (D)  Changes to Scope of Services:

          (E)  Representatives:

          (F)  Responsibility for Reporting:

          (G)  Termination:

               This Special Service Addendum may be terminated (i)
               by either party with or without cause at any time
               upon 30 days written notice, or (ii) by the non-
               breaching party upon 2 days written notice in the
               event the other party fails to cure its breach of a
               material obligation under the Agreement or this
               Special Service Addendum within 20 days of its
               receipt of a notice alleging such breach from the
               other party.

                    Upon termination of the Special Service
                    Addendum, Lessor shall invoice Lessee for all
                    services performed by Lessor under this Special
                    Service Addendum prior to the termination for
                    which Lessor was not previously compensated,
                    and for expenses necessary to shut down the
                    project.

          ACCEPTED AND AGREED, as of the later of the two dates
          noted in the signature blocks, by each Party's authorized
          representative.

     LESSOR:                                LESSEE:

     ROFAN AUTOMATION AND                   BIOCHIMICA DEL SALENTO 
     INFORMATION SYSTEMS B.V                S.p.A. 

                                      By:                           

     Name:                            Name:                         
     Title:                           Title:                        

     Date:                            Date:                         


                                 SCHEDULE I
                            LEASED MOD5 SOFTWARE

                               NUMBER OF    LEASE          ANNUAL
   SITE      PLANT                  MOD CANS     CHARGES        SUPPORT FEES

   BRINDISI, BIOCHIMICA                 9        NONE           U.S. $11,700.00
   ITALY     DEL SALENTO                         (ANTEDATES LEASING)
        PROCESS

   MOD5 SYSTEMS DESCRIPTION:

   NUMBER OF SYSTEMS:       2

   VERSIONS:
        CPU:                MOD5+
        OVERHEAD SOFTWARE:  REL. 0643
        GPI:                REL. V 2.00
        DSS:                REL. V 2.00
        MODSERVER
          HARDWARE:         AS STADE STANDARD
          SOFTWARE:         REL. V 2.0e

   BRINDISI,   BIOCHIMICA       1         NONE        U.S. $ 1,300.00
   ITALY       DEL SALENTO         (ANTEDATES LEASING)
          SIMULATION/
          MAINTENANCE

   MOD5 SYSTEMS DESCRIPTION:

   NUMBER OF SYSTEMS:       1

   VERSIONS:
        CPU:                MOD5+
        OVERHEAD SOFTWARE:  REL. 0643
        GPI:                REL. V 2.00
        DSS:                REL. V 2.00
        MODSERVER
          HARDWARE:         AS STADE STANDARD
          SOFTWARE:         REL. V 2.0e

             TOTAL ANNUAL SUPPORT FEES:         U.S. $13,000.00


                      PERSONAL CONFIDENTIALITY AGREEMENT

          DECLARATIONS:

               The undersigned employee of BIOCHIMICA DEL SALENTO
          S.p.A. (Biochimica) has certain responsibilities for
          maintaining and operating MOD5 SYSTEMS for manufacturing
          process control.

               The undersigned Affiliate of The Dow Chemical
          Company (Dow) is willing to continue supporting MOD5
          SYSTEMS used by Biochimica according to the terms of the
          "Computerized Process Control Software Agreement" entered
          into between Affiliate and Biochimica with the proviso
          that the latter appoint a MOD5 SOFTWARE technical manager
          with appropriate competencies in the English language and
          pertinent technical qualifications:
          ASSURANCES:

               The undersigned acknowledges he/she has been
          assigned such responsibilities regarding MOD5 SYSTEMS by
          Biochimica and affirms:

               1.   That he/she is familiar with the "Computerized
          Process Control Software Agreement" mentioned above,
          including those terms thereof regarding confidentiality
          of Information.

               2.   That pursuant to the terms of the Agreement
          he/she will not disclose to others proprietary
          information about MOD5 SYSTEMS nor make any unauthorized
          copies of documents containing such Information, and
          moreover agrees that no personal rights to use any
          Information acquired in working with MOD5 SYSTEMS are
          expressly or impliedly acquired hereunder.

               It is understood by the undersigned and Affiliate of
          Dow that these obligations shall not apply to Information
          which is or becomes part of the public domain through no
          fault of the undersigned or is received by the
          undersigned on a nonconfidential basis from a third party
          who is not under an obligation of confidence to dow or a
          Dow Affiliate.

          ACCEPTED BY                        ROFAN AUTOMATION AND
          BIOCHIMICA Representative          INFORMATION SYSTEMS B.V


                                             By:                           
          Name:                              Name:                         

          Title:                             Title:                        
          Date:                              Date:                         



                                                                   EXHIBIT 12


                                                     CONFORMED COPY

                      MANUFACTURING AGREEMENT AMENDMENT

          This Manufacturing Agreement Amendment ("Amendment") is
          effective as of the date of purchase of shares of stock
          of Marion Merrell Dow Inc., a Delaware corporation with
          its principal place of business in Kansas City, Missouri
          ("MMD"), owned by The Dow Chemical Company, a Delaware
          corporation with its principal place of business in
          Midland, Michigan ("DOW"), by H Pharma Acquisition Corp.,
          a Delaware corporation.  This Amendment between DOW and
          Merrell Dow Pharmaceuticals, Inc., a Delaware corporation
          with its principal place of business in Cincinnati, Ohio
          and a wholly-owned subsidiary of MMD ("MDPI"), amends the
          Manufacturing Agreement between DOW and MDPI dated April
          1, 1992 ("Manufacturing Agreement").

          DOW and MDPI agree as follows:

          1.   This Amendment adopts the defined terms stated in
               the Manufacturing Agreement.

          2.   Section 2.2(e) is amended and replaced in its
               entirety with the following:

               (e)    For each year beginning with 1996, shall pay
                      to DOW

               (i)    a Fee of $9,700,000 per year payable in
                      accordance with Section 4.3;

               (ii)   plus $300,000 per year for reimbursement of
                      General Administrative Costs;

               (iii)  plus a sum for Gain Sharing as formalized
                      between the parties in the Operating
                      Principles.  Gain Sharing shall be subject to
                      a $500,000 yearly cap.

          3.   Section 14.1 is amended and replaced in its entirety
               with the following:

               14.1   Term.  The term of this Agreement shall
               commence on April 1, 1992 and extend until June 30,
               2000.  The Agreement shall be automatically extended
               for two additional one year periods through June 30,
               2002, unless terminated under Section 14.2.

          4.   Section 14.2 is amended and replaced in its entirety
               with the following:

               14.2   Termination.

               (a)    Either party shall have the right to
               terminate this Agreement effective June 30, 2000 or
               June 30, 2001 by providing the other party with at
               least three years' prior written notice of
               termination.

               (b)    MDPI may terminate the manufacture of any
               given Substance at the end of a calendar quarter by
               providing one years' prior written notice to DOW. 
               Such termination shall not relieve MDPI of
               responsibility for payment of the Fee, General
               Administrative Costs, or Gain Sharing as stated in
               Section 2.2; however, Dow shall use its reasonable
               best efforts to reduce Production Costs for the
               remaining Substances due to reduction in the number
               of Substances being produced in the Dedicated
               Facilities.  If any accepted orders for a Substance
               which is terminated are outstanding when termination
               was supposed to occur, then such termination shall
               not be effective until completion of the outstanding
               orders.

          5.   Section 16.8 is amended and replaced in its entirety
               with the following:

               16.8   Disposition of Dedicated Facilities.  MDPI
               must sell to DOW and DOW must purchase from MDPI,
               the Dedicated Facilities upon termination of this
               Agreement.  The purchase price is to be sixty
               percent of the residual book value of the Dedicated
               Facilities at the time of termination of this
               Agreement.  For the purpose of making this
               calculation, the parties agree that as of April 1,
               1995 the book value of the Dedicated Facilities
               (assuming and including the completion of projects
               in progress) was $92,000,000.  The parties agree
               that the residual book value of the Dedicated
               Facilities shall be based on a 10 year straight line
               depreciation from April 1, 1995.  Any capital spent
               by MDPI (other than capital for the completion of
               the projects in progress on April 1, 1995) to
               maintain, improve or add to the Dedicated Facilities
               shall be MDPI's responsibility and DOW shall have no
               obligation to pay MDPI for such improvements to the
               Dedicated Facilities unless otherwise agreed in
               writing.  Therefore, assuming completion of projects
               in progress on April 1, 1995, if the Agreement
               terminates on June 30, 2000, DOW shall pay to MDPI
               $27,600,000 for the Dedicated Facilities.  The
               Dedicated Facilities will be sold as is, where is,
               and with a warranty that the facilities are free and
               clear of any lawful security interests or liens but
               with no other warranties.

          6.   DOW and MDPI may decide to extend the manufacturing
          relationship addressed in this Amendment and the
          Manufacturing Agreement.  To the extent that the parties
          have negotiations regarding an extension of the term of
          the Manufacturing Agreement, DOW agrees to include in
          those discussions the possibility for paying to MDPI an
          increased percentage of the residual book value of the
          Dedicated Facilities as stated in Section 16.8 of the

          Manufacturing Agreement.

          7.   The parties agree that to the extent this Amendment
          is inconsistent with the Ground Lease, this Amendment
          supersedes the Ground Lease.  Upon DOW's purchase of the
          Dedicated Facilities from MDPI, the parties agree that
          the Ground Lease simultaneously terminates to the extent
          that it applies to the Dedicated Facilities. 
          Notwithstanding the foregoing, MDPI shall not be released
          from its obligations under Article XIV of the Ground
          Lease regarding the Dedicated Facilities except that MDPI
          shall be relieved of any responsibility under Article
          XIV(a) to remove, demolish, and dispose of any Buildings
          and Equipment; and DOW shall not be released from its
          obligations under Article XVIII of the Ground Lease.

          8.   All of the other terms and conditions of the
          Manufacturing Agreement continue in full force and
          effect.

          The parties have caused this Agreement to be executed by
          their duly authorized representatives.

          THE DOW CHEMICAL COMPANY      MERRELL DOW PHARMACEUTICALS, INC.

          /s/ Enrique C. Falla          /s/ Charles D. Dalton              
          Name:  Enrique C. Falla       Name:  Charles D. Dalton
          Title: Executive Vice         Title: Vice President
                 President and
                 Chief Financial
                 Officer




                                                                 EXHIBIT 13


                                                             CONFORMED COPY

                SECOND AMENDMENT TO MASTER SERVICE AGREEMENTS

               This Second Amendment to the Master Service
          Agreements ("Amendment") is effective as of the date of
          purchase of shares of stock of Marion Merrell Dow Inc., a
          Delaware corporation with its principal place of business
          in Kansas City, Missouri ("MMD"), owned by The Dow
          Chemical Company, a Delaware corporation with its
          principal place of business in Midland, Michigan ("DOW"),
          by H Pharma Acquisition Corp., a Delaware corporation
          (the "Effective Date").  This Amendment is by and among
          MMD, DOW and Merrell Dow Pharmaceuticals Inc., a Delaware
          corporation with its principal place of business in
          Cincinnati, Ohio and a wholly-owned subsidiary of MMD
          ("MDPI").

               WHEREAS, MMD and MDPI each made a Master Service
          Agreement dated as of December 2, 1989 with DOW, which
          Master Service Agreements were amended by the parties in
          amendments dated January 1, 1992 and May 3, 1995;

               WHEREAS, MMD, MDPI and DOW desire to clarify rights
          and obligations associated with research and development
          services provided by DOW under the Master Service
          Agreements; and

               WHEREAS, MMD, MDPI and DOW desire to modify the
          notice of termination provisions, the duration of certain
          services and clarify the compensation to be owed to DOW
          for all services performed under the Master Service
          Agreements.

          MMD, MDPI and DOW agree as follows:

          1.   This Amendment adopts the terms "Dedicated
          Facilities" and "Midland Facility" as those terms are
          defined in the Manufacturing Agreement between MDPI and
          DOW dated April 1, 1992, as amended ("Manufacturing
          Agreement").

          2.   "Research Services" means the research and
          development services described in Section 2(e) of the
          Master Service Agreement between DOW and MDPI at the
          Midland Facility.  The Research Services shall include
          but not be limited to the following types of activity: 
          (a) supply of bulk drug substances for pre-clinical and
          clinical testing; (b) lab and pilot plant capability; (c)
          raw material source identification and qualification in
          conjunction with MMD personnel; (d) process experience to
          establish drug substance specifications; (e) process
          development information to support process registration;
          (f) in process analytical development and quality control
          methods; (g) support for the writing of INDs, DMFs and
          NDAs; (h) status reports on a quarterly basis; (i)
          technical and research and development reports on a
          quarterly basis; (j) technical and research and
          development reports on a project; (k) other services
          reasonably required to support a project or as may be
          agreed to by the parties.  It is the intent of the
          parties that the Research Services shall be of a similar
          nature to those process development and research services
          provided by DOW to MDPI under the Master Service
          Agreement immediately prior to the date of this
          Amendment.

          3.   For Research Services only, the term provided for in
          Section 1 of the Master Service Agreement between MMD and
          DOW and Section 1(a) of the Master Service Agreement
          between MDPI and DOW shall be amended to extend until
          June 30, 2000.  This term as applied to Research Services
          shall be automatically extended for two additional one
          year periods through June 30, 2002, unless otherwise
          terminated according to this Amendment.  Either MMD or
          MDPI, respectively, or DOW may terminate the respective
          Master Service Agreement as applied to Research Services
          at the end of a term by giving the other party three
          years' prior written notice of termination.  The shorter
          termination notice provision for individual services
          stated in the January 1, 1992 Amendment to Master Service
          Agreements does not apply to Research Services.  MDPI may
          add or discontinue projects in the ordinary course of
          business as has been the practice of MDPI prior to the
          date of this Amendment.

          4.   For Research Services only, until notice of
          termination is given, the fixed annual amount as
          described in Section 4(a) of the Master Service Agreement
          between MDPI and DOW may not decline by more than fifteen
          percent per calendar year from the level existing the
          prior calendar year.  The 1995 fixed annual amount shall
          be adjusted pro rata by paragraph 5 below.  The first
          calendar year the fixed annual amount may decline is
          1996.  After notice of termination, the fixed annual
          amount may not decline by more than fifteen percent per
          year the first year and twenty-five percent per year the
          second year.  There is no limit on the decline of the
          fixed annual amount for the final year.

          5.   For all services, including Research Services,
          performed after the Effective Date under the Master
          Service Agreements, MMD and MDPI shall reimburse DOW 130
          percent of the amount calculated according to Section 4
          of the Master Service Agreement between MDPI and DOW. 
          The parties confirm, however, that there is no 30%
          surcharge on the cost of raw materials purchased by Dow
          for MMD or MDPI.

          6.   Upon termination of the Research Services, MMD and
          MDPI must sell to DOW and DOW must buy from MMD and MDPI
          all physical assets owned by either MMD or MDPI which are
          located in the Midland Facility other than the Dedicated
          Facilities ("Research Facilities").  The Research
          Facilities include MMD or MDPI assets that DOW, as of
          April 1, 1995, directly uses to provide Research
          Services.  The purchase price for the Research Facilities
          is to be sixty percent of the residual book value of the
          Research Facilities at the time the Research Services
          portion of both Master Service Agreements are terminated. 
          The purchase price shall be paid by DOW to MDPI.  For the
          purpose of making this calculation, the parties agree
          that as of April 1, 1995 the book value of the Research
          Facilities (assuming and including completion of projects
          in progress) was $30,500,000.  The parties agree that the
          residual book value of the Research Facilities shall be
          based on a 10 year straight line depreciation from April
          1, 1995.  Any capital spent by MMD or MDPI (other than
          capital for the completion of projects in progress on
          April 1, 1995) to maintain, improve or add to the
          Research Facilities shall be either MMD's or MDPI's
          responsibility, and DOW shall have no obligation to pay
          additional sums of money for the Research Facilities
          unless otherwise agreed in writing.  Therefore, assuming
          completion of projects in progress on April 1, 1995 and
          assuming termination of the Research Services on June 30,
          2000, then DOW will pay to MDPI $9,150,000 for the
          Research Facilities.  The Research Facilities will be
          sold as is, where is, and with a warranty that the
          facilities are free and clear of any lawful security
          interests or liens but with no other warranties.

          7.   MMD, MDPI and DOW may decide to extend the Research
          Services relationship addressed in this Amendment.  To
          the extent that the parties have negotiations regarding
          an extension of the term of the Research Services portion
          of the Master Service Agreements, DOW agrees to include
          in those discussions the possibility of paying an
          increased percentage of the residual book value of the
          Research Facilities at the end of the extended term.  DOW
          and MDPI shall mutually agree upon appropriate
          compensation prior to DOW being permitted by MDPI to use
          the Research Facilities for DOW's own purposes (during
          the term of the Research Services portion of the Master
          Service Agreement between MDPI and DOW) unrelated to the
          Research Services.

          8.   The parties agree that to the extent this Amendment
          is inconsistent with the Ground Lease between MDPI and
          DOW dated April 1, 1992 ("Ground Lease"), this Amendment
          supersedes the Ground Lease.  Upon DOW's purchase of the
          Research Facilities, the parties agree that the Ground
          Lease simultaneously terminates to the extent that it
          applies to the Research Facilities.  Notwithstanding the
          foregoing, MDPI shall not be released from its
          obligations under Article XIV of the Ground Lease
          regarding the Research Facilities except that MDPI shall
          be relieved of any responsibility under Article XIV(a) to
          remove, demolish, and dispose of any Buildings and
          Equipment; and DOW shall not be released from its
          obligations under Article XVIII of the Ground Lease.

          9.   Except as modified herein, all of the other terms
          and conditions of the Master Service Agreements continue
          in full force and effect.

          The parties have caused this Amendment to be executed by
          their duly authorized representatives.

          THE DOW CHEMICAL COMPANY      MERRELL DOW
                                        PHARMACEUTICALS INC.

          /s/ Enrique C. Falla          /s/ Charles D. Dalton 
          Name:  Enrique C. Falla       Name:  Charles D. Dalton
          Title: Executive Vice         Title: Vice President


                 President and
                 Chief Financial
                 Officer
                                        MARION MERRELL DOW INC.

                                        /s/ Charles D. Dalton 
                                        Name:  Charles D. Dalton
                                        Title: Vice President




                                                         EXHIBIT 14


                                                     CONFORMED COPY

                 THIRD AMENDMENT TO MASTER SERVICE AGREEMENTS

                    This Third Amendment to the Master Service
          Agreements ("Amendment") is effective as of the date of
          purchase of shares of stock of Marion Merrell Dow Inc., a
          Delaware corporation with its principal place of business
          in Kansas City, Missouri ("MMD"), owned by The Dow
          Chemical Company, a Delaware corporation with its
          principal place of business in Midland, Michigan ("DOW"),
          by H Pharma Acquisition Corp., a Delaware corporation
          (the "Effective Date").  This Amendment is by and among
          MMD, DOW and Merrell Dow Pharmaceuticals Inc., a Delaware
          corporation with its principal place of business in
          Cincinnati, Ohio and a wholly-owned subsidiary of MMD
          ("MDPI").

                    WHEREAS, MMD and MDPI each made a Master
          Service Agreement dated as of December 2, 1989 with DOW,
          which Master Service Agreements were amended by the
          parties in amendments dated January 1, 1992 and May 3,
          1995:

                    WHEREAS, MMD, MDPI and DOW desire to clarify
          rights and obligations associated with services provided
          by DOW under the Master Service Agreements.

                    NOW THEREFORE, the parties agree as follows:

                    1.   It is the general intent of MMD, MDPI, DOW
          and their respective subsidiaries around the world to
          disengage from the various service agreements on a global
          basis as soon as practical and in a reasonable manner
          after DOW sells its shares of MMD's stock. The parties
          intend and acknowledge that outside of the USA the
          disengagement will be managed by the local DOW and MMD
          subsidiaries, taking into account local needs and the
          local service agreements.

                    2.   Pursuant to Section 3 of the Amendment to
          Master Service Agreement dated January 1, 1992, MMD and
          MDPI hereby give DOW notice that as of the date that DOW
          sells its shares in MMD (or as soon thereafter as is
          practical and reasonable), MMD and MDPI are terminating
          the following services on a global basis:  Treasury,
          Payroll, Human Resources, Tax, Legal, and Waste Disposal
          (other than waste generated at the Midland Facility).  By
          its acknowledgment, as indicated below, DOW hereby waives
          the 90 days' written notice of termination regarding the
          above referenced services.

                    3.   After the date DOW sells its shares in
          MMD, DOW shall cause its subsidiaries to continue to
          provide to MMD or its subsidiaries the services currently
          being provided under the terms of the local services
          agreements, and:

                    (i)  Human Resources services for benefits
               administration in Canada through June 30, 1996;


                    (ii) information systems services in Japan,
               Korea, Hong Kong, New Zealand, and Australia
               through 1996; and

                    (iii) cost accounting and purchasing
               services in Europe until the PRIZM system
               becomes operational or the end of 1996,
               whichever occurs first.

                    4.   DOW agrees that various principles of
          operations (e.g. information systems, telecommunications
          services, treasury services, accounting guidelines, and
          Pharma Plant operation guidelines) shall continue in
          place until the related services have been terminated.

                    5.   For all services performed after the
          Effective Date under the Master Service Agreements, MMD
          and MDPI shall reimburse DOW 130 percent of the amount
          calculated according to Section 4 of the Master Service
          Agreement between MDPI and DOW.  

                    6.   At DOW's discretion DOW may waive the 90
          day notice of termination regarding future terminations
          for any service.

                    The parties and their subsidiaries will
          continue to work together to provide a smooth transition
          and disengagement from DOW provided services.

                    The parties have caused this Amendment to be
          executed by their duly authorized representatives.

          THE DOW CHEMICAL COMPANY      MERRELL DOW PHARMACEUTICALS INC.

          /s/ Enrique C. Falla          /s/ Charles D. Dalton            
          Name:  Enrique C. Falla       Name:  Charles D. Dalton
          Title: Executive Vice         Title: Vice President
                 President and
                 Chief Financial
                 Officer
                                        MARION MERRELL DOW INC.

                                        /s/ Charles D. Dalton            
                                        Name:  Charles D. Dalton
                                        Title: Vice President




                                                               EXHIBIT 15



                                        May 3, 1995

          The Dow Chemical Company
          Attention:  General Counsel
          2030 Willard H. Dow Center
          Midland, Michigan  48674

                    Re:  Nonexclusive List of Agreements to be
                         Reached Prior to Stock Purchase          

          Dear Sirs:

                    In order to expedite the execution of the Stock
          Purchase Agreement and the Agreement and Plan of Merger,
          The Dow Chemical Company ("DCC"), Marion Merrell Dow Inc.
          ("MMD"), and Merrell Dow Pharmaceuticals Inc. ("MDPI")
          agree that between the date of this letter and the
          purchase of DCC's Shares pursuant to the Stock Purchase
          Agreement, the parties shall use best efforts to reach
          definitive agreements on, but not limited to, the matters
          listed below to the extent that such agreements have not
          been reached on or prior to the date hereof:

                    (i) DCC's assistance in transferring to
               MMD or MDPI all technology owned by or licensed
               to MMD or MDPI;

                    (ii) confirmation of ownership of
               intellectual property rights of MMD, MDPI and
               DCC;

                    (iii) the grant to MMD or MDPI by DCC of
               an option for a non-exclusive, worldwide
               license to certain DCC patents relating to a
               fiber optic probe and related technologies;

                    (iv) the ownership and cross-licensing by
               MMD or MDPI and DCC of future inventions and
               developments relating to technology developed
               in connection with the Master Service
               Agreements, dated December 2, 1989, or the
               Manufacturing Agreement between DCC and MDPI,
               dated April 1, 1992, both as amended;

                    (v) MMD's ability to use DCC's
               Indianapolis toxicology laboratories on a
               nonexclusive basis;

                    (vi) Dow's acknowledgement of MMD's or
               MDPI's ownership of the results of the
               engineering work performed for DCC relating to
               the construction of a new plant for AllerVax
               (R) products;

                    (vii) the provision of services to Dow
               Italia S.p.A. at the Garessio plant relating to
               the milling of cholestyramine;

                    (viii) the extension of the term of the
               Methocel Supply Agreement dated October 1, 1993
               between MMD and DCC for three (3) years from
               the end of its existing term;

                    (ix) to the extent required, the continuation 
               of non-manufacturing services currently provided by
               Dow Italia S.p.A. to Gruppo Lepetit S.p.A. under the
               Manufacturing Services Agreement dated December
               21, 1990, as amended; and

                    (x) such other matters as either MMD or DCC may
               desire.

                    If the parties are unable to reach agreement on
          any of the above matters after using good faith efforts
          to do so, such unresolved matters shall be referred to
          Klaus Schmieder of H Pharma Acquisition Corp. and Enrique
          Falla of DCC for resolution.

          MARION MERRELL DOW INC.       MERRELL DOW PHARMACEUTICAL INC.

          By: /s/ Charles D. Dalton     By: /s/ Charles D. Dalton 
          Name:  Charles D. Dalton      Name:  Charles D. Dalton
          Title: Vice President         Title: Vice President

          Acknowledged and Agreed:

          THE DOW CHEMICAL COMPANY

          By: /s/ Jane M. Gootee
          Name:  Jane M. Gootee
          Title: Manager, Financial Law



                                                  EXHIBIT 16

                                                  May 3, 1995

          The Dow Chemical Company
          Attention:  General Counsel
          2030 Willard H. Dow Center
          Midland, Michigan  48674

               Re:  Employment Matters, Certain Italian Personnel

                    In conjunction with the execution of the Stock
          Purchase Agreement of this date (the "Agreement") among
          The Dow Chemical Company ("DCC"), Hoechst Corporation
          ("Hoechst") and certain of their subsidiaries, this
          letter is intended to set forth provisions relating to
          the above referenced matters.  Defined terms used in the
          Agreement shall have the same meanings when used herein
          as are attributable to them under the Agreement.

                    With respect to employment matters, DCC has no
          objection to and will cause Dow Italia S.p.A. ("Dow
          Italia") to agree that the following five (5) Dow Italia
          employees shall be transferred to Gruppo Lepetit S.p.A.
          ("Gruppo Lepetit") as of the date of Hoechst's purchase
          of the Dow Shares:  Costantino Ambrosio, Director of
          Manufacturing, Italy; Daniele Bosatra, European Bulk
          Sites E&HS Manager; Flavio Caluri, Process Control/MOD
          Engineer; and Luigi Grippa, Italian Engineering Manager;
          and Marilena Serpico, Administrative Assistant.  The
          individuals shall resign and shall be hired the same day
          by Gruppo Lepetit.  Marion Merrell Dow Inc. has no
          objection to and will cause Gruppo Lepetit to hire the
          five people on the day each of them resigns from Dow
          Italia.  Dow Italia shall not pay any costs or
          indemnities other than accrued severance allowances.  FIP
          Dow will be handled separately and according to
          applicable regulations.

                    DCC further has no objection to and will cause
          Dow Italia  to agree that Dow Italia will not offer
          employment to, or employ, any current Dow Italia 
          employees who, immediately preceeding the Closing Date
          under the Agreement, were employed at, supporting or
          operating the Gruppo Lepetit plants located in Italy for
          a period of one year after the Closing Date.  DCC also
          has no objection to and  will cause Dow Italia to agree
          and to act in good faith according to regulations so that
          all severance allowances, and other benefits (FIP Dow
          will be handled separately and according to applicable
          regulations), if any, or other accounts attributable (i)
          to the foregoing five employees, (ii) to all other
          employees of Dow Italia who are being transferred to
          Gruppo Lepetit pursuant to the Manufacturing Services
          Agreement dated December 21, 1990, as amended, on the
          date of Hoechst's purchase of Dow Shares pursuant to the
          Agreement and (iii) to other employees, if any, of an MMD
          subsidiary participating in Italian benefit plans, shall
          be transferred, if under Dow Italia's control, to the MMD
          legal entity responsible for such employee as of the
          Closing Date according to local regulations.

                    DCC also has no objection to and will cause its
          relevant subsidiary to agree that all severance
          allowances, and other benefits, if any, or other accounts
          attributable to MMD employees who participate in benefit
          plans, if any, of Dow subsidiaries in Portugal,
          Switzerland and the U.K. shall be transferred, if under a
          Dow subsidiary's control, to the MMD legal entity
          responsible for such employee as of and after the Closing
          Date according to local regulations.

                    DCC and MMD further agree that as of the date
          of Hoechst's purchase of Dow Shares pursuant to the
          Agreement, the Manufacturing Services Agreement between
          Dow relevant subsidiaries on the one hand and (a) MMD
          GmbH dated December 9, 1993, (b) MMD Limited dated
          December 21, 1993, (c) MMD S.A. dated December 27, 1993,
          (d) MMD & Cie SNC dated December 27, 1993, (e) MMD S.A.
          dated January 3, 1994, and (f) Gruppo Lepetit dated
          December 21, 1990, respectively, as subsequently amended,
          will terminate by mutual consent without further action
          of the parties.

                                        MARION MERRELL DOW INC.

                                        By /s/ Charles D. Dalton

                                        THE DOW CHEMICAL COMPANY

                                        By /s/ Jane M. Gootee   




                                                              EXHIBIT 17



                              JOINT FILING AGREEMENT

                    Hoechst Corporation and H Pharma Acquisition Corp.
          (hereinafter collectively referred to as the "Filing
          Persons") each hereby agrees to file jointly a Statement on
          Schedule 13D ("Schedule 13D") and any amendments thereto
          relating to the Common Stock, par value $0.10 per share, of
          Marion Merrell Dow Inc., a Delaware corporation, as permitted
          by Rule 13d-1 of the Securities Exchange Act of 1934, as
          amended.  Each of the Filing Persons agrees that information
          set forth in such Schedule 13D and any amendments thereto
          with respect to such person will be true, complete and
          correct as of the date of such Schedule 13D or such amendment
          to the best of such Filing Person's knowledge and belief
          after reasonable inquiry.  Each of the Filing Persons makes
          no representation as to the accuracy or adequacy of the
          information set forth in such Schedule 13D and any amendments
          thereto with respect to the other Filing Person.  Each of the
          Filing Persons shall promptly notify the other Filing Person
          if any of the information set forth in such Schedule 13D
          shall be or become inaccurate in any material respect or if
          it learns of information which would require an amendment to
          such Schedule 13D.

                    IN WITNESS WHEREOF, the parties hereto have set
          forth their hand as of the 11th day of May, 1995.

                                        HOECHST CORPORATION

                                        By:  /s/ Harry R. Benz         
                                             Name:  Harry R. Benz
                                             Title: Treasurer

                                        H PHARMA ACQUISITION CORP.

                                        By:  /s/ David A. Jenkins      
                                             Name:  David A. Jenkins
                                             Title: Vice President




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