BIOPOOL INTERNATIONAL INC
8-K/A, 1997-03-14
IN VITRO & IN VIVO DIAGNOSTIC SUBSTANCES
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<PAGE>
_________________________________________________________________
_________________________________________________________________
                                 


               SECURITIES AND EXCHANGE COMMISSION
                      WASHINGTON, D.C. 20549

                _______________________________
                                 
                           Form 8-KA
                                 
                          CURRENT REPORT
               PURSUANT TO SECTION 13 OR 15(d) OF
              THE SECURITIES EXCHANGE ACT OF 1934

Date of Report (Date of earliest event reported): January 1, 1997


_________________________________________________________________

                  Commission file number 0-17714

_________________________________________________________________


                   BIOPOOL INTERNATIONAL, INC.
      (Exact name of Registrant as specified in its charter)




          Delaware                             58-1729436
(State or other jurisdiction of              (I.R.S. Employer
incorporation or organization)                Identification No.)




                      6025 Nicolle Street
                   Ventura, California 93003
            (Address of principal executive offices)



                         (805) 654-0643
      (Registrant's telephone number including area code)




_________________________________________________________________
_________________________________________________________________




<PAGE>
ITEM 2. ACQUISITION OR DISPOSITION OF ASSETS

     (a)  On January 1, 1997, Registrant (" Biopool
International, Inc." or "BII") acquired certain assets of the
Blood Group Serology ("BGS") Division of Organon Teknika
Corporation ("Organon"), located in West Chester, Pennsylvania. 
There was no prior relationship between Organon or any of its
officers, directors or affiliates, and the Registrant and any of
its officers, directors or affiliates.  The acquired assets
consist of two adjacent parcels of real property, each located in
West Chester, Pennsylvania, certain blood serology product lines,
including certain proprietary blood cell lines, customer
accounts, laboratory facilities and an existing employee base,
all of which are used in the BGS business.  The purchase
price for BGS was $4.5 million, payable in cash.  The Registrant
funded the purchase price in part from the privately placed sale 
of 500,000 shares of its Common Stock to a group of accredited 
investors, and in part from proceeds of a $3.5 million credit 
facility extended to the Registrant by Sanwa Bank.  The 
Registrant believes that the acquisition of BGS expands and 
broadens its product lines and provides an expanded direct 
sales force for its products.  The Registrant also believes 
that the acquisition of BGS provides the Company with a number 
of strategic advantages that will enhance its existing business.  
The acquisition was accomplished as a sale of assets (and assumption
of certain liabilities) which were acquired directly by the
Registrant, and was accounted for as a purchase.

     (b)  The Registrant intends to continue to operate BGS
as an unincorporated division of the Registrant, from its existing 
location in West Chester, Pennsylvania.  All acquired assets, 
including plant and equipment, will remain in tact and continue 
to be utilized in essentially the same manner as such assets were 
used by Organon.


ITEM 7. FINANCIAL STATEMENTS, PRO FORMA FINANCIAL INFORMATION AND
EXHIBITS

     (a)  Financial Statements of Blood 
          Group Serology                                 Page
          __________________________________             ____

          Balance Sheet, December 31, 1996                 5

          Statement of Income and Owner's 
          Deficit for the Year Ended 
          December 31, 1996                                6




                               2
<PAGE>
                                                         Page
                                                         ____

          Statement of Cash Flows for the 
          Year Ended December 31, 1996                     7

          Notes to Financial Statements                    8

          Independent Auditors' Report                    12

     (b)  Pro Forma Financial Information
          _______________________________

          Pro Forma Condensed Consolidated
          Balance Sheet                                   14

          Pro Forma Consolidated Statement
          of Operations                                   15

          Notes to Pro Forma Consolidated
          Statements                                      16

     (c)  Exhibits
          ________

          Sales and Purchase Agreement                    18


























                               3
<PAGE>
                           SIGNATURES


Pursuant to the requirements of the Securities Exchange Act of
1934, the Registrant has duly caused this report to be signed on
its behalf by the undersigned thereunto duly authorized.





Date:   March 14, 1997              BIOPOOL INTERNATIONAL, INC. 
        _____________________       ___________________________
                                    (Registrant)





                                    /s/  Michael D. Bick, Ph.D. 
                                    ___________________________
                                    Michael D. Bick, Ph.D.
                                    Chief Executive Officer and
                                    Chairman of the Board




























                               4
<PAGE>
                                                     ITEM 7 (a)
<TABLE>
<CAPTION>
BALANCE SHEET
DECEMBER 31, 1996
_______________________________________________________________________
<S>                                                    <C>             
ASSETS

CURRENT ASSETS:
Cash                                                   $     2,000 
Accounts receivable, net of allowance
  for doubtful accounts of $71,000:
  Affiliates                                               268,000 
  Non-affiliates                                         1,349,000 
Inventories                                              2,075,000 
Prepaid expenses and other current assets                   13,000 
                                                       ___________ 
Total current assets                                     3,707,000 
                                                       ___________ 

PROPERTY, PLANT AND EQUIPMENT                            6,801,000 
Less accumulated depreciation and amortization          (5,100,000)
Property, plant and equipment, net                       1,701,000 
                                                       ___________ 
TOTAL ASSETS                                           $ 5,408,000 
                                                       ___________ 

LIABILITIES AND OWNER'S DEFICIT

CURRENT LIABILITIES:
Intercompany payables                                  $ 6,054,000 
Accounts payable                                           212,000 
Accrued expenses                                           134,000 
                                                       ___________ 
Total current liabilities                                6,400,000 
                                                       ___________ 

COMMITMENTS AND CONTINGENCIES

OWNER'S DEFICIT                                           (992,000)
                                                       ___________ 
TOTAL LIABILITIES AND OWNER'S DEFICIT                  $ 5,408,000 
                                                       ___________ 
</TABLE>

See independent auditors' report and notes to financial
statements. 

_______________________________________________________________________


                                5
<PAGE>
<TABLE>
<CAPTION>
STATEMENT OF INCOME AND OWNER'S DEFICIT
FOR THE YEAR ENDED DECEMBER 31, 1996
_______________________________________________________________________
<S>                                                     <C>
SALES                                                   $  7,961,000 
                                                        ____________

COSTS AND EXPENSES:
Cost of sales                                              5,556,000 
Selling, general and administrative                        2,159,000 
Research and development                                      93,000 
                                                        ____________
Total costs and expenses                                   7,808,000 
                                                        ____________

NET INCOME                                                   153,000 

OWNER'S DEFICIT, BEGINNING OF YEAR                        (1,145,000)
                                                        ____________

OWNER'S DEFICIT, END OF YEAR                            $   (992,000)
                                                        ____________
</TABLE>

See independent auditors' report and notes to financial
statements.

_______________________________________________________________________






















                               6
<PAGE>
<TABLE>
<CAPTION>
STATEMENT OF CASH FLOWS
FOR THE YEAR ENDED DECEMBER 31, 1996
_______________________________________________________________________
<S>                                                    <C>
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income                                             $   153,000 
Adjustments to reconcile net income to net 
  cash provided by operating activities:
  Depreciation and amortization                            194,000 
Changes in operating assets and liabilities:
  Accounts receivable                                      (76,000)
  Inventories                                                8,000 
  Prepaid expenses and other assets                         (2,000)
  Accounts payable and accrued expenses                    137,000 
                                                       ___________ 
Net cash provided by operating activities                  414,000 
                                                       ___________ 

CASH FLOWS FROM FINANCING ACTIVITIES - Net
  intercompany repayments                                 (414,000)
                                                       ___________ 

NET CHANGE IN CASH                                             -0- 

CASH, BEGINNING OF YEAR                                      2,000 
                                                       ___________ 

CASH, END OF YEAR                                      $     2,000 
                                                       ___________ 
</TABLE>

See independent auditors' report and notes to financial
statements.

_________________________________________________________________
















                               7
<PAGE>
NOTES TO FINANCIAL STATEMENTS
_________________________________________________________________


1.   SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

     Description of Business - Blood Group Serology (the
     "Company") is a division of Organon Teknika Corporation
     ("Organon"; which in turn is a wholly-owned subsidiary of
     Akzo Nobel, a Netherlands Company).  The Company was
     purchased by Akzo Nobel in December 1986.  The Company is
     currently engaged in research, development, production, and
     sale of test kits used to assess and determine blood type.
 
     Intercompany Transactions - Sales, marketing, credit and
     collections are performed by Organon.  Revenues and expenses
     recorded by Organon are accounted for through the
     Intercompany accounts.  Such revenues and expenses have been
     allocated to the Company based on specific identification.
   
     Pervasiveness of Estimates - The preparation of financial
     statements in conformity with generally accepted accounting
     principles requires management to make estimates and
     assumptions that affect the reported amounts of assets and
     liabilities and disclosure of contingent assets and
     liabilities at the date of the financial statements and the
     reported amounts of revenues and expenses during the
     reporting period.  Actual results could differ from those
     estimates.
   
     Inventories - Inventories are stated at the lower of cost
     (first-in, first-out) or market.
   
     Property, Plant and Equipment - Property, plant and
     equipment acquired after December 1986 are stated at cost. 
     Property and equipment acquired prior to December 1986 was
     stated at its estimated fair value.  Depreciation and
     amortization is generally provided on a straight-line basis
     over their estimated useful lives, which range from three to
     twenty-five years.

     Research and Development Costs - Research and development
     costs are expensed when incurred and include both internal
     research and development costs and payments to third parties
     by the Company.

     Income Taxes - The Company has a tax sharing arrangement
     with Akzo Nobel.  No amounts for income taxes have been
     allocated to the Company for the year ended December 31,
     1996.



                               8
<PAGE>
     Concentrations of Credit Risk - Financial instruments, which
     potentially subject the Company to concentrations of credit
     risk, consist principally of trade receivables. 
     Concentrations of credit risk with respect to trade
     receivables are limited due to the large number of customers
     comprising the Company's customer base and their dispersion 
     across many different geographic areas.  No customer exceeded 
     10% of the net balance due at December 31, 1996.  Generally, 
     the Company does not require collateral or other security to 
     support customer receivables.

     Fair Value of Financial Instruments - Based on borrowing
     rates currently available to the Company for bank loans, the
     carrying value of financial instruments potentially subject
     to valuation risk (principally consisting of accounts
     receivable and accounts payable) approximate fair value.
   
2.   INVENTORIES
<TABLE>
<CAPTION>
     Inventories consist of the following at December 31, 1996:
     <S>                                               <C>
     Raw materials                                     $   597,000 
     Work-in-process                                       923,000 
     Finished goods                                        555,000 
                                                       ___________ 
     Total                                             $ 2,075,000 
                                                       ___________ 
</TABLE>

3.   PROPERTY AND EQUIPMENT
<TABLE>
<CAPTION>
     Property and equipment consists of the following:
     <S>                                               <C>
     Land                                              $   463,000 
     Building and improvements                           3,011,000 
     Processing and laboratory equipment                 3,154,000 
     Furniture and fixtures                                173,000 
                                                       ___________ 
     Total property and equipment                        6,801,000 
     Less accumulated depreciation and amortization     (5,100,000)
                                                       ___________ 
     Property and equipment, net                       $ 1,701,000 
                                                       ___________ 
</TABLE>





                                9
<PAGE>
4.   SIGNIFICANT SALES INFORMATION AND FOREIGN OPERATIONS

     The Company currently operates in one industry, Blood Bank
     Reagents, and sells its products worldwide.  No customer
     accounted for more than 10% of total sales in 1996.  Export
     sales by the Company to customers in foreign countries
     (including affiliate sales) accounted for approximately 30%
     of total sales in 1996.

     Product sales to affiliates are generally priced at cost
     plus 35%.

<TABLE>
<CAPTION>
     Information regarding the Company's sales by geographic
     locations is as follows:
     <S>                                                <C>
     United States                                      $5,529,000
     Western Europe                                      1,181,000
     Central/South America                                 397,000
     Asia/Pacific Region                                   378,000
     Canada                                                323,000
     Other                                                 153,000
                                                        __________
     Total                                              $7,961,000
                                                        __________
</TABLE>

5.   EMPLOYEE BENEFIT PLANS

     The Company participates in a 401(K) Plan and a Retirement
     Benefit Plan sponsored by Akzo Nobel.  Substantially all
     employees who work at least 1000 hours and reach the age of
     21 are eligible to participate.  An allocated benefit
     percentage is applied to each company to cover the benefit
     plans.

     Under the 401(K) Plan, the Company matches 50% of the
     employee's contribution up to 6% of the employee's gross
     wages.  The Company was allocated approximately $54,000 to
     cover the required employer contribution.

     Under the Retirement Benefit Plan, employees qualify for
     benefits upon becoming eligible to participate.  Employees
     become vested upon five years of service (as defined). 
     Benefits are calculated based on a formula that includes
     earnings, years of service, covered compensation (as
     defined) and Social Security.  The Company was allocated
     approximately $83,000 to cover the required employer
     contribution.



                               10
<PAGE>
6.   SUBSEQUENT EVENT

     Effective January 1, 1997, Biopool International, Inc.
     acquired certain assets (primarily inventories and property,
     plant and equipment) of the Company in exchange for
     approximately $4.5  million.  The accounts receivable and
     liabilities were retained by Organon.


_________________________________________________________________











































                               11
<PAGE>

INDEPENDENT AUDITORS' REPORT


Blood Group Serology:

We have audited the accompanying balance sheet of Blood Group
Serology (the "Company"), a division of Organon Teknika
Corporation, as of December 31, 1996 and the related statements
of income and owner's deficit and of cash flows for the year then
ended.  These financial statements are the responsibility of the
Company's management.  Our responsibility is to express an
opinion on these financial statements based on our audit.  

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

In our opinion, the financial statements present fairly, in all
material respects, the financial position of the Company as of
December 31, 1996 and the results of its operations and its cash
flows for the year then ended in conformity with generally
accepted accounting principles.  



                                                   Farber & Hass

February 19, 1997

















                               12
<PAGE>
                                                     ITEM 7 (b)

PRO FORMA FINANCIAL INFORMATION
BIOPOOL INTERNATIONAL, INC. AND BLOOD GROUP SEROLOGY
(UNAUDITED)
_________________________________________________________________


The following unaudited pro forma consolidated balance sheet and
the unaudited pro forma consolidated statement of operations have
been prepared by Biopool International, Inc. ("BII") management
and give effect to the acquisition of certain Blood Group
Serology ("BGS") assets.  The pro forma information is based on 
the historical financial statements of BII and BGS giving effect 
to the transaction under the purchase method of accounting and 
the assumptions and adjustments in the accompanying notes to the 
pro forma consolidated financial statements.

These pro forma consolidated statements may not be indicative of 
the results that actually would have occurred if the combination 
had been in effect on the dates indicated or which may be obtained 
in the future.  The pro forma consolidated financial statements 
should be read in conjunction with the historical financial 
statements of BGS.






























                               13
<PAGE>
<TABLE>
BIOPOOL INTERNATIONAL, INC. AND BLOOD GROUP SEROLOGY
PRO FORMA CONDENSED CONSOLIDATED BALANCE SHEET
AS OF DECEMBER 31, 1996
_________________________________________________________________________
<CAPTION>
                                               UNAUDITED
                                            (in thousands)           
                                 Balance Sheets           Pro Forma
                                  BII      BGS         Adjust    Consol'd
<S>                           <C>        <C>        <C>          <C>
ASSETS
Current assets
 Cash and equivalents         $   2,019  $     2                 $  2,021 
 Accounts receivable - net        1,560    1,617    $(1,617)a       1,560 
 Inventories                      2,027    2,075                    4,102 
 Prepaid expense                  4,789       13     (4,647)a,c       155 
                              __________________                 ________
   Total current assets          10,395    3,707                    7,838 

 Net property, plant and 
 equipment                        1,643    1,701        972 a       4,316 
 Other assets                     1,085                             1,085 
                              __________________                 ________
TOTAL ASSETS                  $  13,123  $ 5,408                 $ 13,239 

LIABILITIES AND STOCKHOLDERS' 
EQUITY
Current liabilities         
 Accounts payable             $     214  $   212       (212)a    $    214 
 Accrued expenses                   774      134        (18)a,c       890 
 Intercompany payables                     6,054     (6,054)a          -- 
 Bank borrowings                    120                               120 
 Current portion of long-
 term debt                          852                               852 
                              __________________                 ________ 
   Total current liabilities      1,960    6,400                    2,076 

Long-term debt, net               2,811                             2,811 

Stockholders' equity                                                    
 Common stock                        86                                86 
 Additional paid in capital      10,737                            10,737 
 Retained earnings               (2,518)    (992)       992 a      (2,518)
 Cumulative foreign currency
 translation adjustment              47                                47 
                               _________________                 ________
   Total equity                   8,352     (992)                   8,352 

TOTAL LIABILITIES AND STOCK-
HOLDERS' EQUITY                $ 13,123  $ 5,408                 $ 13,239 
</TABLE>

                                  14
<PAGE>
<TABLE>
BIOPOOL INTERNATIONAL, INC. AND BLOOD GROUP SEROLOGY
PRO FORMA CONSOLIDATED STATEMENT OF OPERATIONS
FOR THE YEAR ENDED DECEMBER 31, 1996
_________________________________________________________________________

<CAPTION>
                                              UNAUDITED
                                           (In thousands)         

                                                           Pro Forma
                              BII          BGS       Adjust       Consol'd 

<S>                      <C>            <C>         <C>          <C>
Sales                    $    8,020     $  7,961                 $   15,981 

Costs and expenses
 Cost of sales                4,091        5,556                      9,647 
 Selling, general and 
 administration               2,509        2,159    $  (419)b         4,249 
 Research and develop-
 ment                           263           93                        356 
 Other (income) expense         (23)                   (290)b           267 
                         _______________________                 __________
   Total costs and 
   expenses                   6,840        7,808                     14,519 
                         _______________________                 __________
Income before income 
taxes                         1,180          153                      1,462 

Income tax benefit 
(expense)                       115           --        (32)b            83 
                         _______________________                 __________
 NET INCOME              $    1,295     $    153                 $    1,545 


Primary earnings per 
share                    $     0.16                              $     0.17 
                         __________                              __________
Average shares out-
standing                  8,341,967                               8,841,967 
                         __________                              __________
</TABLE>










                                  15
<PAGE>
BIOPOOL INTERNATIONAL, INC. AND BLOOD GROUP SEROLOGY
NOTES TO PRO FORMA CONSOLIDATED FINANCIAL STATEMENTS (UNAUDITED)
(IN THOUSANDS)
_________________________________________________________________
<TABLE>
(a)  Under purchase accounting, BGS's assets and liabilities are
     required to be adjusted to their estimated fair values.  The
     estimated fair value adjustments have been determined by BII
     based upon available information.  BII cannot be sure that
     such estimated fair values represent fair values that would
     ultimately be determined at the acquisition date.  The
     following are the pro forma adjustments made to reflect
     BGS's fair values as of December 31, 1996.
<CAPTION>
                                                   Net Assets 
                                              Increase (Decrease)
      <S>                                         <C>
      Amounts as reported by BGS                  $    (992)

      Fair value adjustments
         Property and equipment, net                    972 
      Assets and liabilities not acquired
         Accounts receivable                         (1,617)
         Prepaid expense                                (13)
         Accounts payable                               212 
         Accrued expense                                134 
         Intercompany payables                        6,054 
                                                  _________ 
                                                  $   4,750 
</TABLE>

<TABLE>
<CAPTION>
(b)  For purposes of determining the pro forma effect of the BGS
     acquisition on the consolidated statement of operations, the
     following pro forma adjustments have been made for the year
     ended December 31, 1996.
     <S>                                          <C>
     Increase in depreciation expenses due to
     step-up in basis                             $      79 
     Net decrease due to reduction of personnel
     and related benefits                              (300)
     Net decrease due to reduction of parent
     company charges                                   (198) 
                                                  _________
        Net decrease to selling, general and
        administration expense                         (419)

     Increase to interest expense due to
     borrowed funds                                     290 
     Interest to income tax expense                      32 
                                                  _________
        Net decrease to costs and expenses        $     (97)
</TABLE>
                               16
<PAGE>
<TABLE>
<CAPTION>
(c)  Reduction of deposits and prepaid expenses to effect the
     purchase on January 1, 1997, and accrue other capitalized
     costs.
     <S>                                          <C>
     Deposit and prepaid expense                  $   4,634 
     Accrued liabilities                                116 
                                                  _________
                                                  $   4,750 
</TABLE>









































                               17
<PAGE>
                                                     ITEM 7 (c)
                                                               
                                                               
                  SALE AND PURCHASE AGREEMENT


This Agreement is made on this 1st day of November, 1996
(hereinafter referred to as the "Effective Date") by and between

ORGANON TEKNIKA CORPORATION, a Delaware corporation having its
principal place of business at 100 Akzo Avenue, Durham, NC 27712,
USA (hereinafter referred to as "OTC") and

ORGANON TEKNIKA B.V., a Dutch corporation having its principal
place of business at Boseind 15, Boxtel, the Netherlands
(hereinafter referred to as "Teknika B.V.") on the one hand and

BIOPOOL INTERNATIONAL, INC., a Delaware corporation having its
principal place of business at 6025 Nicolle Street, Ventura,
California 93003 (hereinafter referred to as the "Purchaser").

WITNESSETH THAT:

OTC owns a blood group serology division which is engaged in the
manufacture and sale of laboratory reagents to hospitals,
commercial reference laboratories, plasma fractionation centers
and blood centers.

The blood group serology division is composed of: (i) certain
assets and property as set forth in Paragraph 1.1 hereinafter
(hereinafter referred to as the "Assets") owned by OTC or, where
indicated, by Teknika B.V. as of the date hereof; (ii) certain
liabilities associated with the Assets as set forth in Paragraph
1.4 hereinafter (hereinafter referred to as "Liabilities"); and
(iii) certain employees identified on Schedule 4 attached hereto
(hereinafter referred to as the "Employees"), who are employed by
OTC.

The Assets, Liabilities and Employees are hereinafter
collectively referred to as the "BGS Operations."

Purchaser wishes to acquire the BGS Operations upon the terms and
conditions set forth herein.

NOW, THEREFORE, in consideration of the foregoing premises and
the mutual covenants and undertakings contained herein, the
parties do hereby agree as follows:





                               18
<PAGE>
Article 1.  SALE AND TRANSFER.

1.1   ASSETS.  OTC and Teknika B. V., where appropriate, agree
      and undertake to sell and transfer, convey and assign to
      Purchaser and Purchaser agrees and undertakes to buy and
      receive from OTC and Teknika B.V. respectively on the
      Closing Date (as defined in Paragraph 3.1 hereinafter) all
      the right, title and interest in the Assets, subject to
      Purchaser's assumption of the Liabilities associated
      therewith except as explicitly provided otherwise herein. 
      The Assets consist of  the following:

               (a)  All rights, title and interest in, to or under,
                    any contracts, agreements, leases, licenses,
                    commitments and undertakings of OTC with respect
                    to the BGS Operations, all of which are
                    collectively referred to hereunder as the
                    "Contracts."  A list of all Contracts to be
                    conveyed hereunder with a value exceeding $10,000
                    as of the Closing Date is set forth on the
                    "Contracts List" attached hereto as Schedule 1.1;
                    provided that OTC and Teknika B.V. have the right
                    to amend the Contracts List prior to the Closing
                    Date, subject to Purchaser's right to terminate
                    this Agreement by written notice to OTC and
                    Teknika B.V. if such amendment would have a
                    material adverse effect on the BGS Operations and
                    the parties cannot find a mutually acceptable
                    solution.

      (b)      Those trademarks and registrations thereof, and
               applications for any of the foregoing (the
               "Teknika B.V. Trademarks") set forth on Schedule
               1.2 (the "Trademark List") owned by Teknika B.V.
               as well as all trademarks and registrations
               thereof, and applications for the foregoing (the
               "OTC Trademarks") set forth in the Trademark List
               owned by OTC.

      (c)      All inventions, technology, know-how, discoveries,
               ideas, trade secrets, research data, manufacturing
               directions and records, including but not limited
               to device history records, (hereinafter referred
               to as "Technology"), owned by OTC and which are
               used in the BGS Operations to the extent necessary
               to conduct the BGS operations as currently done.

      (d)      The "Facility", which includes (i) fee title to
               that certain real property located in the Township



                               19
<PAGE>
               of West Goshen, County of Chester, State of
               Pennsylvania, as more particularly described on
               Schedule 1.3 (the "Real Estate List") attached
               hereto ( the "Land"); (ii) all buildings,
               improvements, structures and fixtures now or
               hereafter located on or in the Land (the
               "Improvements"); (iii) all apparatus, equipment
               and appliances constituting real property and used
               in connection with the operation or occupancy of
               the Land and the Improvements (including, without
               limitation, those Improvements (previously) used
               by other divisions of OTC); (iv) all of the
               rights, privileges and easements appurtenant to or
               used in connection with the Land and the
               Improvements; (v) all transferable architectural,
               site, landscaping or other permits, applications,
               approvals, authorizations and other entitlements
               affecting the Facility other than the
               Registrations (collectively, the "Permits"); and
               (vi) warranties, representations and guarantees
               (express or implied) made by OTC's suppliers,
               manufacturers and contractors in connection with
               or affecting the Facility.

      (e)      All of that certain tangible property including,
               without limitation furniture, machinery, equipment
               (including laboratory equipment), computers, and
               vehicles of the BGS Operations located at the West
               Chester Manufacturing Facility only (the
               "Equipment").  All such items constituting fixed
               assets with a net book value of one U.S. Dollar
               (US $1.00) or more are listed on the "Equipment
               List" attached hereto as Schedule 1.4.

      (f)      All inventories of finished goods, work in
               process, materials (including biological
               materials), components and supplies owned by OTC
               and located at the Facility,  as well as cell
               washers and spare parts of cell washers owned by
               OTC and located at OTC's facilities in Oklahoma
               City, and which are exclusively related to the BGS
               Operations on hand as of the Closing Date (the
               "Inventory").

      (g)      All books, records and files, including but not
               limited to customer lists, owned by OTC and
               exclusively related to the BGS Operations other
               than those associated with any assets or
               properties not sold to Purchaser hereunder (the
               "Records").


                                20<PAGE>
      (h)      Those product and facility licenses, approvals or
               clearances related to products and product lines
               being transferred to Purchaser hereunder issued by
               the United States Food and Drug Administration
               (the "FDA"), the United States Department of
               Agriculture (the "USDA") and any corresponding
               governmental regulatory agency in the USA and
               other countries, and all pending applications
               therefor (the "Registrations") as  set forth on
               Schedule 1.5 (the "Regulatory Approval List").

      (i)      The ownership of the Anti-C3 Cell Lines (the
               "Anti-C3 Cell Lines") as identified in Schedule
               1.6 (the "Cell Line List"), that are located at
               the facilities of PerImmune, Inc. at Rockville,
               Maryland.

      (j)      Any pre-paid expenses not included in the Excluded
               Assets, including but not limited to pre-paid
               taxes, attributable to and/or on the books of the
               BGS Operations as of the Closing Date.

1.2   EXCLUDED ASSETS.  Notwithstanding anything contained in
      Section 1.1 to the contrary, Purchaser shall not acquire
      any right, title or interest to any assets or property,
      tangible or intangible, set forth below and where
      appropriate specified in Schedule 2 (the "Excluded Assets
      List") (collectively referred to as the "Excluded
      Assets"):

      (a)      Cash, accounts receivable, including accounts
               receivable with affiliated companies, and any
               other moneys due to OTC from third parties whether
               or not affiliated with OTC attributable to and/or
               on the books of the BGS Operations as of the
               Closing Date.

      (b)      Tax refund claims and insurance coverage claims
               (including prepaid premiums) attributable to the
               BGS Operations as of the Closing Date.

      (c)      All insurance policies maintained by OTC or Akzo
               Nobel Inc. and with respect to the BGS Operations,
               all insurance claims and rights, as well as all
               uninsured claims and lawsuits to the extent that
               they relate to damages sustained on occurrences
               and events occurring prior to the Closing Date.

      (d)      Any rights in or to the use of the name "Organon
               Teknika" or derivations thereof, or OTC's logo,
               except to the extent provided in Paragraph 17.3
               hereof.

                               21
<PAGE>
      (e)      Any and all rights relating to Sicklequik (as
               meant in paragraph 17.2 hereinafter) including but
               not limited to all know-how, manufacturing
               technology, inventories, books and records and
               regulatory approvals relating to Sicklequik.

1.3   NON ASSIGNABLE CONTRACTS AND RIGHTS. Anything herein to
      the contrary notwithstanding, no properties, rights or
      other assets, including but not limited to Contracts and
      regulatory approvals, of OTC in respect of the BGS
      Operations shall be deemed sold, transferred, conveyed or
      assigned to Purchaser pursuant to this Agreement if the
      attempted sale, transfer, conveyance or assignment of the
      same to Purchaser without the consent or approval of
      another party or governmental entity, including but not
      limited to the FDA and other governmental regulatory
      agencies, would be ineffective or would constitute a
      breach thereof or would in any other way adversely affect
      the rights of OTC (or Purchaser, as assignee) thereunder. 
      If any such consent or approval is required but not
      obtained on or prior to the Closing Date, OTC covenants
      and agrees that in such case the beneficial interest in or
      to such properties, rights or assets shall in any event
      pass as of the Closing Date to Purchaser hereunder; and
      OTC covenants and agrees (a) from and after the Closing
      Date to hold and declare that it holds any and all such
      properties, rights and assets in trust for the benefit of
      Purchaser, (b) to use reasonable efforts without payment
      of any penalty or fee to obtain and secure any and all
      consents and approvals that may be necessary to effect the
      valid sale, transfer, conveyance or assignment of the same
      to Purchaser without change in any of the material terms
      or conditions thereof, including, without limitation, the
      formal assignment or novation of any of the same, if so
      required, (c) to make or complete such transfers as soon
      as reasonably possible, and (d) to cooperate with
      Purchaser in any other reasonable arrangement designed to
      provide for Purchaser the benefits of and to such
      properties, rights and assets.

1.4   ASSUMPTION OF LIABILITIES.  The Purchaser shall assume,
      fulfill and perform the following liabilities of OTC (the
      "Liabilities"):

      (i)      all liabilities and obligations of OTC occurring
               after the Closing Date with respect to the
               Contracts, the Facility, the Equipment, and the
               Registrations as referred to in Paragraph 1.1 




                               22
<PAGE>
               under (a), (d), (e), and (h) other than liabilities
               resulting from a breach of contract occurring prior
               to the Closing Date;

      (ii)     all liabilities and obligations of OTC to be
               assumed by Purchaser pursuant to Articles 11 and 12
               relating to Employees and employee benefits;

      (iii)    all other liabilities and obligations arising out
               of or relating to damages sustained or occurrences
               and events occurring with respect to the BGS
               Operations after the Closing Date other than
               liabilities resulting from a breach by OTC of this
               Agreement or any other obligations incurred by OTC
               in connection herewith.

Article 2.  CONSIDERATION AND PAYMENT THEREOF.

2.1   The aggregate consideration for the transfer of Assets to
      be paid by Purchaser shall be four million five hundred
      thousand US Dollars (U.S. $4,500,000) (the "Purchase
      Price").  Purchaser shall pay the Purchase Price to OTC
      and Teknika B.V. in accordance with Paragraph 2.3 hereof.

2.2   The Purchase Price shall be allocated as follows:

      (a)      one million eight hundred thousand U.S. Dollars
               (U.S. $1,800,000) for the Facility of which nine
               hundred thousand US Dollars (US $900,000) shall be
               allocated to the land and the remaining nine
               hundred thousand US Dollars (US $900,000) shall be
               allocated to the Improvements; (the "Facility
               Purchase Price")

      (b)      five hundred thousand U.S. Dollars (U.S. $500,000)
               for the Equipment;

      (c)      two million U.S. Dollars (U.S. $2,000,000) for the
               Inventory;

      (d)      two hundred thousand U.S. Dollars (U.S. $200,000)
               for the Contracts, the Trademarks, the Technology,
               the Registrations and the Anti C3 Cell Lines, of
               which one hundred thousand U.S. Dollars (U.S.
               $100,000) shall be paid to Teknika B.V. for the
               transfer of Teknika B.V. Trademarks and the
               remainder to OTC for the OTC Trademarks, the
               Contracts, the Technology, the Registrations and
               the Anti-C3 Cell Lines.



                               23
<PAGE>
      The Purchase Price shall not be subject to any adjustment
      subsequent to the Closing Date.

2.3   The Purchase Price shall be paid by Purchaser on the
      Closing Date as follows:

      (a)      to OTC: (i) the amount of four million four
               hundred thousand U.S. Dollars (U.S. $4,400,000) in
               cash by wire transfer to the Bank of New York, New
               York, NY, ABA 021000018, for the account of Akzo
               Nobel, Inc., account number 8090492730, under
               reference to OTC-BGS.

      (b)      to Teknika B.V. the amount of one hundred thousand
               U.S. Dollars (U.S. $100,000) in cash by wire
               transfer to a bank account designated by Teknika
               B.V.

Article 3.  TRANSFER OF BGS OPERATIONS.

3.1   Ownership of all Assets purchased hereunder shall be
      delivered by OTC to Purchaser on December 31, 1996 (the
      "Closing Date") or another date as agreed upon between the
      parties.  The transfer of the Assets (the "Closing") shall
      be deemed effective as of midnight Eastern Standard Time
      on December 31, 1996, at which time title and risk of loss
      with respect to the Assets will pass to Purchaser.

3.2   On the Closing Date, OTC and Teknika B.V., at their sole
      cost and expense, shall deliver or cause to be delivered
      to Purchaser the following documents and instruments, each
      dated as of the Closing Date, and the following other
      materials and items, in addition to any other items and
      payments required by this Agreement to be delivered by OTC
      or Teknika B.V.:

      (i)      all Assets hereby agreed to be sold which are
               capable of transfer by delivery except as
               explicitly set forth otherwise in this Agreement;

      (ii)     an original duly executed and acknowledged grant
               deed subject to the Permitted Exceptions (as
               defined in Paragraph 5.4 hereinafter) conveying
               the property of Purchaser;

      (iii)    an assignment of intellectual property, duly
               executed on behalf of Teknika B.V., for the
               Teknika B.V. Trademarks and on behalf of OTC for
               the OTC Trademarks as listed in the Trademark List



                               24
<PAGE>
               (the "Trademarks") as well as for other
               intellectual property relating to the BGS
               Operations; and

      (iv)     three (3) original executed counter parts of an
               assignment and assumption agreement duly executed
               on behalf of OTC and/or Teknika B.V. assigning the
               Contracts to Purchaser;

      (v)      a bill of sale by which OTC and/or Teknika B.V.
               shall transfer to Purchaser, free and clear of all
               liens, claims and encumbrances, all right, and
               interest in and to all of the other Assets.

      (vi)     a Non-Foreign Affidavit duly executed on behalf of
               OTC stating that OTC is not a foreign person within
               the meaning of Section 1445 (f) (3) of the Internal
               Revenue Code of 1986;

      (vii)    a statement duly executed on behalf of PerImmune,
               Inc., acknowledging that Purchaser will own the
               Anti-C3-Cell Lines as from the Closing Date, that
               PerImmune, Inc. will hold these Anti-C3-Cell Lines
               as from the Closing Date for the benefit of
               Purchaser and that PerImmune, Inc. will physically
               transfer the Anti-C3-Cell lines to Purchaser or a
               third party designated by Purchaser upon the first
               written request of Purchaser.

      (viii)   such other documents and instruments, signed and
               properly acknowledged by OTC and/or Teknika B.V.,
               if appropriate, as may be reasonably required by
               Purchaser or otherwise in order to  effectuate the
               provisions of this Agreement and the Closing as
               they relate to the acquisition of the Assets.

3.3   Delivery as contemplated in paragraph 3.2 above shall be
      made against:

      (i)      Same day federal funds transferred by Purchaser to
               OTC and Teknika B.V. in the amounts as specified
               in Article 2 above;

      (ii)     Delivery of such instrument of assumption as OTC
               may reasonably request to effectuate assumption of
               liabilities and obligations of OTC by Purchaser
               provided for in Paragraph 1.4 above; and

      (iv)     three (3) originally executed counter parts of an
               assignment and assumption agreement duly executed 



                               25
<PAGE>
               on behalf of Purchaser accepting the assignment of
               the Contracts to Purchaser and assuming the
               performance of the obligation of the assignment
               under the Contracts.

3.4   (a)      Subject to the last sentence of this subparagraph
               3.4(a), the following shall be prorated between
               the parties with respect to the BGS Operations as
               of midnight Eastern Standard Time, on the Closing
               Date;

               (i)   real property taxes imposed with respect to
                     the Facility (including any current and
                     nondelinquent installments of assessments
                     which are payable in installments), and
                     taxes on the Equipment, whether such taxes
                     are existing or pending as of the Closing
                     Date or may hereafter arise; and taxes
                     (including personal property taxes on the
                     Equipment) and assessments levied against
                     the Facility;

               (ii)  payments under the Contracts;

               (iii) all gas, electric and other utility
                     charges; and

               (iv)  any other operating expenses or other items
                     pertaining to the Facility which are
                     customarily prorated between a purchaser
                     and a seller in the area in which the
                     Facility is located.

               The foregoing apportionments are dependent upon
               OTC and Teknika B.V. receiving the Purchase Price
               by no later than 3:00 p.m., Eastern Standard Time,
               on the Closing Date.  If such receipt is not
               guaranteed to OTC and Teknika, OTC and Teknika
               B.V. may elect to apportion as of the following
               business day.

      (b)      Such prorations shall be made by the parties
               hereto as soon as practicable, but no later than
               thirty (30) days after the Closing Date.  The
               parties shall make all necessary adjustments by
               appropriate payments between themselves within
               such period.

      (c)      The provisions of this Paragraph 3.4 shall survive
               Closing.


                               26
<PAGE>
3.5   As soon as practicable, but not later than thirty (30)
      days after the Closing Date, OTC shall deliver to
      Purchaser a detailed statement (the "Statement") setting
      forth the quantity and value of all inventories of
      finished goods, work in process, materials (including
      biological materials), components and supplies, at the BGS
      Operations, and exclusively related to the BGS Operations
      on hand as of the Closing Date.  Purchaser acknowledges
      that the purchase price as specified in Article 2 above is
      firm and not subject to any adjustments and that the
      Statement shall not in any way be used to alter or affect
      the amount of such purchase price.

3.6   After the Closing Date, OTC will from time to time, at
      Purchaser's request and without further consideration,
      execute and deliver to Purchaser such other and further
      instruments of conveyance, assignment and transfer as
      Purchaser may reasonably request for more effective
      conveyance and transfer of any of the Assets to Purchaser,
      including, without limitation, such further instruments of
      conveyance, assignment  and transfer as may be necessary
      to permit Purchaser to record on or in any applicable
      record or recording office its ownership of any of the
      Assets.

Article 4.  CONDITIONS PRECEDENT TO CLOSING.

4.1   EACH PARTY'S CONDITIONS PRECEDENT TO CLOSING.  The
      obligation of Purchaser to purchase the Assets and of OTC
      and Teknika B.V. to sell the Assets in accordance with
      this Agreement is subject to the following conditions
      precedent (collectively, the "Joint Closing Conditions"),
      which conditions may be waived, or the time for
      satisfaction thereof extended, by both parties only in a
      writing executed by each (provided, however, that any such
      waiver shall not affect the ability of the party waiving
      such condition to pursue any remedy it may have with
      respect to any breach hereunder by the other):

      (a)      NO LEGAL PROHIBITIONS.  Neither of the parties
               hereto shall be subject to any order or injunction
               of a court of competent jurisdiction which
               prohibits the consummation of the transactions
               contemplated by this Agreement.  In the event any
               such order or injunction shall have been issued,
               each party agrees to use its reasonable efforts to
               have any such injunction lifted.

      (b)      CONSENTS.  All consents, authorizations, orders
               and approvals of (or filings or registrations


                               27
<PAGE>
               with) any governmental commission, board, other
               regulatory body or third parties required in
               connection with the execution, delivery and
               performance of this Agreement shall have been
               obtained or made, subject, however, to and except
               as foreseen in Paragraph 1.3 above and except
               where the failure to have obtained or made any
               such consent, authorization, order, approval,
               filing or registration would not have a material
               adverse effect on the business, results of
               operations or financial condition of Purchaser and
               the BGS Operations.

4.2   PURCHASER'S CONDITIONS PRECEDENT TO CLOSING.  The
      obligation of Purchaser to purchase the Assets in
      accordance with this Agreement is subject to the following
      conditions precedent (collectively, the "Purchaser's
      Closing Conditions"), which conditions may be waived, or
      the time for satisfaction thereof extended, by Purchaser
      only in a writing executed by Purchaser (provided,
      however, that any such waiver shall not affect Purchaser's
      ability to pursue any remedy it may have with respect to
      any breach hereunder by OTC or Teknika B.V.):

      (a)      CONDITIONS.  OTC and Teknika B.V. shall have
               performed the agreements contained in this
               Agreement required to be performed on or prior to
               the Closing Date and the representations and
               warranties of OTC and Teknika B.V. contained in
               this Agreement shall be true and correct in all
               material respects as of the Closing Date as if
               made on the Closing Date and Purchaser shall have
               received a certificate of the President or a Vice
               President of OTC and Teknika B.V. dated the
               Closing Date, certifying on behalf of OTC and
               Teknika B.V. to such effect.

      (b)      NO MATERIAL CHANGE.  From the date of this
               Agreement through the Closing Date, there shall
               not have occurred any change in the financial
               condition, business or operations of the BGS
               Operations that would have or would be reasonably
               likely to have a material adverse effect on the
               value of the Assets, taken as a whole.

      (c)      TITLE.  First American Title Company or another
               title insurer selected by Purchaser (the "Title
               Company") shall be prepared and irrevocably
               committed to issue to Purchaser an ALTA extended
               coverage owner's policy of title insurance in 


                               28
<PAGE>
               favor of Purchaser in an amount equal to the
               Facility Purchase Price showing title to the
               Facility vested in Purchaser, subject only to the
               Permitted Exceptions (as defined in Paragraph 5.4
               hereinafter), with such endorsements as Purchaser
               may require.  The foregoing title insurance shall
               include standard Pennsylvania title insurance
               endorsements or coverage which may be available in
               other jurisdictions, if such coverage is not now
               available in Pennsylvania to the Title Company.

      FAILURE OF PURCHASER'S CLOSING CONDITIONS.  If any of the
      Purchaser's Closing Conditions have not been fulfilled
      within the applicable time periods, Purchaser may:

      (i)      waive the Purchaser's Closing Condition and close
               in accordance with this Agreement, provided that
               if such waived Closing Condition was not fulfilled
               by reason of any default by OTC or Teknika B.V.,
               all rights and remedies of Purchaser with respect
               to such default shall be preserved and not deemed
               waived; or

      (ii)     terminate this Agreement by written notice to OTC
               and Teknika B.V., in which event OTC and Teknika
               B.V. shall pay for all of the cancellation charges
               of Title Company, and Purchaser shall be entitled
               to pursue its rights and remedies hereunder or
               under applicable law.

4.3   OTC'S AND TEKNIKA B.V.'S CONDITIONS PRECEDENT TO CLOSING. 
      The obligation of OTC and Teknika B.V. to sell the Assets
      in accordance with this Agreement is subject to the
      following conditions precedent (collectively, "OTC's
      Closing Conditions"), which conditions may be waived, or
      the time for satisfaction thereof extended, by OTC and
      Teknika B.V. only in a writing executed by OTC and Teknika
      B.V. (provided, however, that any such waiver shall not
      affect OTC's and Teknika B.V.'s ability to pursue any
      remedy it may have with respect to any breach hereunder by
      Purchaser):

      (a)      CONDITIONS.  Purchaser shall have performed its
               agreements contained in this Agreement required to
               be performed on or prior to the Closing Date, and
               the representations and warranties of Purchaser
               contained in this Agreement shall be true and
               correct in all material respects as of the




                               29
<PAGE>
               Transfer Date as if made on the Transfer Date, and
               OTC and Teknika B.V. shall have received a
               certificate of the President or a Vice President
               of Purchaser, dated the Closing Date, certifying
               on behalf of Purchaser to such effect.

      (b)      PURCHASE PRICE AVAILABLE.  Purchaser shall have
               the Purchase Price available for immediate
               delivery pursuant to Article 3 above.

      FAILURE OF OTC'S AND TEKNIKA B.V.'S CLOSING CONDITIONS. 
      Subject to OTC's and Teknika B.V.'s rights hereunder, if
      any of the OTC's and Teknika B.V.'s closing Conditions
      have not been fulfilled within the applicable time
      periods, OTC and Teknika B.V. may:

      (i)      waive OTC's and Teknika B.V.'s Closing Conditions
               and close in accordance with this Agreement,
               without adjustment or abatement of the Purchase
               Price, except as otherwise provided herein; in
               such event, however, if such waived Closing
               Condition was not fulfilled by reason of any
               default by Purchaser, all rights and remedies of
               OTC and Teknika B.V. with respect to such default
               shall be preserved and not deemed waived; or

      (ii)     terminate this Agreement by written notice to
               Purchaser, in which event Purchaser shall pay for
               all of the cancellation charges of Title Company
               and OTC and Teknika B.V. shall be entitled to
               pursue its rights and remedies hereunder or under
               applicable law.

Article 5.  TITLE AND SURVEY

5.1   TITLE EXAMINATION:  COMMITMENT FOR TITLE INSURANCE. 
      Purchaser shall have until the expiration of the
      Inspection Period (as defined in Paragraph 6.1
      hereinafter) to examine title to the Facility.  During the
      Inspection Period, Purchaser shall obtain from the Title
      Company title commitment (the "Title Commitment") covering
      the Facility, showing all matters and exceptions affecting
      title to the Facility.

5.2   SURVEY.  During the Inspection Period, Purchaser will
      obtain at its own expense an ALTA survey of the Facility
      (the "Survey") in connection with the issuance of the
      Title Policy (as defined in Paragraph 5.5 hereinafter).




                               30
<PAGE>
5.3   TITLE OBJECTIONS; CURE OF TITLE OBJECTIONS.  Purchaser
      shall have until the expiration of the Inspection Period
      to notify OTC, in writing, of such objections as Purchaser
      may have to anything contained in the Title Commitment or
      the Survey.  Any item contained in the Title Commitment or
      any matter shown on the Survey to which Purchaser does not
      object during the Inspection Period shall be deemed
      approved by Purchaser and shall be added to the list of
      Permitted Exceptions (as defined in Paragraph 5.4
      hereinafter).  In the event Purchaser shall notify OTC of
      objections to title or to matters shown on the Survey
      prior to the expiration of the Inspection Period, OTC
      shall have the right, but not the obligation, to cure such
      objections.  Within ten (10) days after receipt of
      Purchaser's notice of objections, OTC shall notify
      Purchaser in writing whether OTC elects to attempt to cure
      such objections.  If OTC elects to attempt to cure such
      matters, OTC shall have until the Closing Date to attempt
      to remove, satisfy or cure the same.  If OTC elects not to
      cure any objections specified in Purchaser's notice, or if
      OTC elects to cure any objections but is unable to effect
      a cure prior to the Closing, Purchaser shall have the
      following options: (i) to accept a conveyance of the
      Facility subject to the Permitted Exceptions (as defined
      in Paragraph 5.4 hereinafter), specifically including any
      matter objected to by Purchaser which OTC is unwilling or
      unable to cure; or (ii) to terminate this Agreement by
      sending written notice thereof to OTC and Teknika B.V.,
      and upon delivery of such notice of termination, this
      Agreement shall terminate and thereafter neither party
      hereto shall have any further rights, obligations or
      liabilities hereunder except with regard to any breach or
      default existing as of that date or to the extent that any
      right, obligation or liability set forth herein expressly
      survives termination of this Agreement.

5.4   CONVEYANCE OF TITLE.  At Closing, OTC shall convey and
      transfer to Purchaser the Facility subject only to the
      following matters (the "Permitted Exceptions"): (i) all
      security interests, liens, claims and other encumbrances
      for property taxes not yet due and payable; (ii) all
      easements, covenants, rights-of-way, claims, liens,
      security interests and other encumbrances disclosed or
      identified in the Title Commitment; (iii) zoning, building
      and other similar governmental restrictions applicable to
      the Facility; (iv) matters of record approved by Purchaser
      pursuant to Paragraph 5.3 above; (v) matters affecting the
      condition of title created by or with the written consent
      of Purchaser; and (vi) items appearing of record or shown
      on the Survey and, in either case, not objected to by


                               31
<PAGE>
      Purchaser or waived or deemed waived by Purchaser in
      accordance with Paragraph 5.3 or 5.6 hereof, and (iv) all
      matters relevant to title that would be revealed or
      disclosed in an accurate survey of the Facility.

5.5   TITLE REPORT.  It is a condition to Purchaser's
      obligations at the Closing that the Title Company shall
      issue to Purchaser an ALTA extended coverage Owner's
      Policy of Title Insurance (the "Title Policy") covering
      the Facility, in an amount reasonably required by
      Purchaser subject only to the Permitted Exceptions and
      insuring, Purchaser against any loss or damage it may
      incur as a result of: (i) any discrepancy between the
      Facility as described on Real Estate List and as shown on
      the Survey; (ii) the forced removal of any Improvements by
      virtue of their encroachment on or over any easements,
      rights of way or property of others; (iii) mechanics'
      liens for work performed or materials supplied prior to
      the Closing; (iv) noncompliance with covenants, conditions
      or restrictions; and (v) any other matters Purchaser
      reasonably requires, and for which the Title Company is
      authorized in Pennsylvania to provide endorsements.

      The foregoing title insurance coverage shall be provided,
      for the account of Purchaser, by means of standard
      Pennsylvania title insurance endorsements, including PA
      104 and PA 301, and/or a standard ALTA 9 endorsement as
      filed in Pennsylvania, and other endorsements which have
      already been filed with the appropriate title regulatory
      authorities in Pennsylvania by the Title Company.  OTC is
      not obligated to procure for Purchaser, nor is the Title
      Company obligated to provide, title insurance endorsements
      or coverage which may be available in other jurisdictions,
      if such coverage is not now available in Pennsylvania.

5.6   PRE-CLOSING "GAP" TITLE DEFECTS.  Whether or not Purchaser
      shall have furnished to OTC any notice of title objections
      pursuant to Paragraph 5.3, Purchaser may, at or prior to
      Closing, notify OTC in writing of any objections to title
      first raised by the Title Company between (a) the date
      which is the earlier of (i) the effective date of the
      Title Commitment or (ii) the expiration of the Inspection
      Period, and (b) the Closing Date.  With respect to any
      objections to title set forth in such notice, OTC shall
      have the same option to cure, and Purchaser shall have the
      same option to accept title subject to such matters or to
      terminate this Agreement as if such objections had been
      made by Purchaser before the expiration of the Inspection
      Period.



                               32
<PAGE>
Article 6.  INSPECTION PERIOD

6.1   DURATION.  The "Inspection Period" shall begin on the date
      of the Effective Date and shall end at 5:00 p.m., Eastern
      Standard Time on November 29, 1996 (such date, the
      "Inspection Expiration Date").  During the Inspection
      Period, Purchaser shall have the right, as provided in
      this Article 6, to inspect and investigate the Facility.

6.2   DILIGENCE MATERIALS.  Within five (5) business days after
      the Effective Date, OTC shall provide and make available
      at the Facility to Purchaser, to the extent within the
      possession or control of OTC or any of its employees,
      representatives, contractors or agents, complete, legible  
      and accurate originals or copies of all operating files
      maintained by OTC or the Facility manager in connection
      with the maintenance and/or management of the Facility and
      relevant for an examination of title of the Facility (the
      "Diligence Materials").

6.3   RIGHT OF ENTRY/INSPECTION.  During the Inspection Period,
      OTC shall provide to Purchaser and its representatives,
      contractors and agents the right to enter upon and
      complete access to the Facility and to make all
      inspections, inquiries and investigations of the condition
      and all other aspects of the Facility which it may deem
      necessary or desirable in its sole discretion and to
      review the Diligence Materials and such other information
      as Purchaser shall obtain with respect to the Facility. 
      All such inspections, investigations and examinations
      shall be undertaken at Purchaser's sole cost and expense. 
      After completing its inspections, Purchaser shall restore
      and repair any damage caused by Purchaser's inspections. 
      Purchaser understands and agrees that any on-site
      inspections of the Facility shall be conducted upon at
      least twenty-four (24) hours' prior notice to OTC and, if
      requested by OTC, in the presence of OTC or its
      representative.  Purchaser agrees to indemnify against and
      hold OTC harmless from any claim for liabilities, costs,
      expenses (including reasonable attorneys' fees actually
      incurred), damages or injuries arising out of or resulting
      from the inspection of the Facility by Purchaser or its
      agents, and notwithstanding anything to the contrary in
      this Agreement, such obligation to indemnify and hold
      harmless OTC shall survive Closing or any termination of
      this Agreement.  All inspections shall occur at reasonable
      times agreed upon by OTC and Purchaser and shall be
      conducted so as not to interfere unreasonably with use of
      the Facility by OTC.  Purchaser agrees to any inspections
      and examinations permitted in this Article 6 prior to the
      expiration of the Inspection Period.

                               33
<PAGE>
Article 7.  CONDEMNATION AND RISK OF LOSS.

7.1   CONDEMNATION.  In the event that OTC receives notice of
      the institution of any proceedings, whether judicial,
      administrative or otherwise, which shall relate to the
      proposed taking of all or any portion of the Facility or
      by eminent domain prior to the Closing, OTC shall promptly
      notify Purchaser thereof.  Purchaser shall thereafter have
      the right, at its sole and absolute discretion, to
      terminate this Agreement by giving OTC and Teknika B.V.
      written notice to such effect within fifteen (15) days
      after receipt by it of such notice from OTC or obtaining
      such notice itself.  Should Purchaser so terminate this
      Agreement, thereafter Purchaser and OTC and Teknika B.V.
      shall be released from their respective obligations and
      liabilities hereunder.  Should Purchaser not so terminate,
      the parties shall proceed to Closing (with no abatement or
      adjustment in the Purchaser Price) and OTC shall execute a
      quitclaim assignment of all of its right, title and
      interest in all awards in connection with such taking to
      Purchaser.  Purchaser shall control the negotiation and
      settlement of any such proceeding.

7.2   MINOR DAMAGE.  In the event of loss or damage to the
      Facility or any portion thereof which is not "Major" (as
      defined in Paragraph 7.3 hereinafter), this Agreement
      shall remain in full force and effect and OTC shall be
      obligated to promptly perform any necessary repairs to
      restore the Facility to substantially the same condition
      as the Facility was in prior to such damage as soon as
      practicable, and all casualty insurance proceeds shall be
      retained by OTC.  In the event that OTC elects to perform
      repairs upon the Facility and such repairs shall not be
      completed prior to the Closing, Purchaser shall have the
      option to reschedule the Closing Date to a date after
      completion of such repair or to proceed to Closing, in
      which  latter event OTC shall assign to Purchaser all of
      OTC's rights to all construction contracts with respect to
      such repairs and to all insurance proceeds thereof and
      shall pay to Purchaser the amount of any applicable
      deductible under OTC's casualty insurance.  If OTC assigns
      a casualty claim to Purchaser, the Purchase Price shall be
      reduced by an amount equal to the deductible amount under
      OTC's insurance policy.  Upon Closing, full risk of loss
      with respect to the Facility shall pass to Purchaser.

7.3   MAJOR DAMAGE.  In the event of a "Major" loss or damage,
      Purchaser may terminate this Agreement by written notice
      to OTC and Teknika B.V.  If Purchaser does not elect to
      terminate this Agreement within fifteen (15) days after


                               34
<PAGE>
      OTC sends Purchaser written notice of the occurrence of
      Major loss or damage, then Purchaser shall be deemed to
      have elected to proceed with Closing, in which event OTC
      shall assign to Purchaser all of OTC's right, title and
      interest to any claims and proceeds OTC may have with
      respect to any casualty insurance policies relating to the
      Facility.  If OTC assigns a casualty claim to Purchaser,
      the Purchase Price shall be reduced by an amount equal to
      the deductible amount under OTC's insurance policy.  Upon
      Closing, full risk of loss with respect to the Facility
      shall pass to Purchaser.

7.4   DEFINITION OF "MAJOR" LOSS OR DAMAGE.  For purposes of
      Paragraphs 7.2 and 7.3, "Major" loss or damage refers to
      loss or damage to the Facility or any portion thereof such
      that the cost of repairing or restoring the Facility in
      question to a condition substantially identical to that of
      the Facility prior to the event of damage would be, in the
      opinion of an architect selected by OTC and reasonably
      approved by Purchaser, equal to or greater than Fifty
      Thousand Dollars ($50,000).  If Purchaser does not give
      notice to OTC of Purchaser's reasons for disapproving an
      architect within ten (10) business days after receipt of
      notice of the proposed architect, Purchaser shall be
      deemed to have approved the architect selected by OTC.

Article 8.  REPRESENTATIONS AND WARRANTIES OF OTC AND TEKNIKA
B.V.

      OTC and where indicated Teknika B.V. hereby represent and
      warrant as of the date of this Agreement and as of the
      Closing Date to Purchaser as an inducement to enter into
      this Agreement.

8.1   STATUS.  OTC is a corporation duly organized and existing
      and in good standing under the laws of the State of
      Delaware, which has full power and authority to own or
      lease its property and assets and to carry on its business
      as it has been, and is, conducted.  Teknika B.V. is a
      corporation duly organized and validly existing and in
      good standing under the laws of the Netherlands, which has
      full power and authority to own or lease its property and
      assets and to carry on its business as it has been, and
      is, conducted.

8.2   CORPORATE AUTHORITY.  Both OTC and Teknika B.V. have full
      power and authority to enter into this Agreement and to
      consummate the transactions contemplated herein.




                               35
<PAGE>
8.3   CORPORATE ACTION.  All necessary corporate action has been
      duly taken by the Board of Directors and stockholders of
      OTC as well as Teknika B.V. in order to authorize the
      execution and consummation of this Agreement.  Upon
      execution hereof by the Purchaser, this Agreement shall be
      the legal, valid and binding obligation of OTC and/or
      Teknika B.V. enforceable in accordance with its terms.

8.4   TITLE TO PROPERTY.  Except as provided in Paragraph 8.5
      with respect to Trademarks and in Paragraph 8.8(b) with
      respect to Facility, OTC has good and marketable title to
      all of the Assets to be transferred hereunder, free and
      clear of any liabilities, liens, encumbrances, security
      interests, charges, imperfections of title or restrictions
      of any kind or nature whatsoever and on the Closing Date
      the Purchaser shall receive good and marketable title to
      all of such Assets free and clear of any liabilities,
      liens, encumbrances, security interests, charges,
      imperfections of title or restrictions of any  kind or
      nature whatsoever.

8.5   TRADEMARKS.  Teknika B.V., has good and marketable title
      to the Teknika B.V. Trademarks and OTC possesses the right
      to use the Teknika B.V. Trademarks in connection with the
      conduct of its business and OTC has good and marketable
      title to the OTC Trademarks, and to the best of Teknika
      B.V. and OTC's knowledge there is no conflict with any
      trademarks or trade names of others.

8.6   CONTRACTS.  All contracts, agreements, leases, licenses,
      commitments and undertakings of OTC assumed by and
      assigned to Purchaser under this Agreement as set forth on
      the Contract List hereto are legal, valid and binding
      obligations of the parties thereto in full force and
      effect in good standing with no current default by either
      of the parties thereto.  OTC shall use reasonable efforts
      to have all such contracts, assignments, leases, licenses,
      commitments and undertakings assigned to Purchaser and no
      amendments or modifications other than in the ordinary
      course of business have been made with respect thereto.

8.7   LITIGATION.  Except as set forth elsewhere in this
      Agreement  or as disclosed on Schedule 3.1 attached
      hereto, there are no material actions, suits or
      proceedings pending or, to the knowledge of OTC or Teknika
      B.V., threatened against and materially adversely
      affecting the BGS Operations before any court,
      administrative agency or other body.  The BGS Operations
      (or OTC with respect to its conduct of the BGS Operations)
      has not been charged; nor to the knowledge of OTC or


                               36
<PAGE>
      Teknika B.V., is it under investigation with respect to
      any charge, concerning any material violation of any
      provision of  any federal, state, local or foreign law or
      administrative negotiations.

8.8   REAL PROPERTY

      (a)      Except for certain office space at OTC's principal
               offices in Durham, NC, (which is not included in
               this transaction) the Facility includes all of the
               real estate currently used or occupied by the BGS
               Operations.  Such real estate is not subject to
               any restrictions which would prevent its use as
               presently used in the conduct of the BGS
               Operations.

      (b)      OTC has good and marketable fee title to the
               Facility, which may be conveyed subject only to
               the Permitted Exceptions.

      (c)      FOREIGN INVESTMENT IN FACILITY TAX ACT.  OTC is
               not a foreign person within the meaning of 42 USCS
               Section 1445(f)(3).

      (d)      TITLE TO FACILITY.  As of the Effective Date, OTC
               is, and as of the Closing Date OTC will be the
               legal and equitable owner of the Facility, and
               shall convey title to the Facility to Purchaser,
               free and clear of all liens and interests other
               than the Permitted Exceptions.

      (e)      ENCROACHMENTS.  Except as described in the
               Permitted Exceptions, to OTC's actual knowledge,
               improvements from adjoining land do not encroach
               onto the Land, and the Improvements do not
               encroach onto adjoining land or easements, in
               either case in a manner that would materially and
               adversely impair the value of the Facility or the
               continued use or operation of the Facility as it
               is presently being conducted.

      (f)      COMPLIANCE WITH LAWS AND GOVERNMENTAL APPROVALS. 
               OTC has not received any notice of alleged
               violation of any statute, order, rule or
               regulation applicable to the Facility, nor any
               written communications (i) from any insurance
               companies, fire underwriting boards or
               governmental agencies of any conditions, defects,
               or inadequacies with respect to the Facility, or



                               37
<PAGE>
               (ii) from governmental agencies with respect to
               any violations of building codes and/or zoning
               ordinances or other governmental laws,
               regulations, or orders with respect to the
               Facility.

      (g)      NO LITIGATION-FACILITY.  There are no actions,
               lawsuits, proceedings, including, without
               limitation, condemnation proceedings, pending or,
               to OTC's actual knowledge, threatened, against OTC
               with respect to the Facility.

      (h)      NO LEASES.  On the Closing Date, there will be no
               leases or occupancy agreements affecting the
               Facility.

      (i)      POSSESSION.  As of the Closing Date, possession of
               the Facility shall be delivered to Purchaser free
               and clear of all interests other than those
               described in the Permitted Exceptions.

      (j)      DUE DILIGENCE DOCUMENTS.  To OTC's actual
               knowledge, all documents and other written
               materials heretofore provided to Purchaser and its
               agents in connection with its due diligence of the
               Facility are correct, complete and (unless
               otherwise patent on their face) final copies of
               what they purport to be.

8.9   ENVIRONMENTAL ISSUES.

      (a)      The West Chester Manufacturing Facility, zoned for
               light industrial, is supplied water from
               Philadelphia Suburban Water, the public water
               company, and is connected to the West Goshen
               Township sewer authority (permit #1WP-005-95-97).

      (b)      The West Chester Manufacturing Facility is a RCRA
               small generator (EPA #PAD174204792).

      (c)      Prior to the date hereof, OTC performed a Phase 1
               study of the West Chester Manufacturing Facility. 
               True and correct copies of the study have been
               delivered to Buyer.  To the best of its knowledge
               and belief, by disclosing the study, OTC has
               disclosed the best information in its possession
               or control concerning the environmental conditions
               or the existence of any contamination at the West
               Chester Manufacturing Facility.



                               38
<PAGE>
      (d)      To the best of its knowledge, OTC has obtained,
               and is in material compliance with, all permits,
               licenses and other authorizations which are
               currently required to operate the West Chester
               Manufacturing Facility.

      (e)      To the best of its knowledge, OTC is not aware of
               nor has it received any notice of any non-
               compliance situation or incident  related to any
               applicable environmental law or regulation which
               would impede or prevent continued operations at
               the West Chester Manufacturing Facility.

      (f)      OTC has not conducted any activity, use, action or
               event of any type whatsoever in or about the
               Facility (or off-site of the Facility that might
               affect the Facility) that did or would constitute
               a violation of any Environmental Law (or
               hereinafter defined); to OTC's actual knowledge,
               except for those substances used in connection
               with BGS Operations, no Hazardous Substances have
               been generated, manufactured, released, treated,
               stored, handled, deposited, disposed of,
               transferred, or discharged from, over, beneath, on
               or about the Facility by any entity, firm, or
               person or from any source whatsoever.

      "Hazardous Substance" means (a) those substances included
      within the definitions of "Hazardous Substances",
      "Hazardous Materials," "Toxic Substances," "Hazardous
      Waste," or "Solid Waste" in any Environmental Law or in
      the regulations promulgated pursuant thereto; (b) those
      substances listed in the United States Department of
      Transportation Table (40 C.F.R. 172.101 and any amendments
      thereto) or by the Environmental Protection Agency as
      hazardous substances (40 C.F.R. Part 302 and amendments
      thereto); and (c) oil and petroleum products, asbestos,
      polychlorinated biphenyls, TCE, PCE or urea formaldehyde,
      but does not include ordinary office supplies in
      reasonable amounts which do not violate Environmental
      Laws.

      "Environmental Law" means any federal, state or local law,
      statute, ordinance, regulation, order or rule pertaining
      to health, industrial hygiene or environmental conditions.

8.10  CONFLICTS WITH OTHER AGREEMENTS;CONSENT OF THIRD PARTIES. 
      Neither the execution and delivery of this Agreement nor
      the consummation of the sale and other transactions



                               39
<PAGE>
      contemplated hereunder will (i) conflict with, or result
      in a breach of, any of the terms and conditions or
      provisions of any law or any regulation, order, writ,
      injunction or decree of any court or government
      instrumentality, (ii) conflict with the corporate Charter
      or Bylaws of OTC or the Statutes of Teknika B.V., (iii)
      conflict with or result in the breach of any agreement or
      other instrument to which OTC or Teknika B.V. is bound;
      (iv) constitute a default (or an event which with notice
      or lapse of time or both become a default) or result in
      any lien or encumbrance on any of the Assets being sold
      hereunder; or (v) result in the violation or termination
      of any permit or governmental license necessary for the
      conduct of the BGS Operations.  Except as foreseen in
      Paragraph 1.3 above the transitions contemplated by this
      Agreement do not require the consent of any third party.

8.11  NO BANKRUPTCY.  No proceeding has been commenced against
      or by OTC or Teknika B.V. under the federal Bankruptcy
      Code or any similar state statute or to Teknika B.V., the
      Dutch Bankruptcy Law.

8.12  NO ADDITIONAL WARRANTIES.  EXCEPT AS EXPLICITLY STATED
      ABOVE IN THIS ARTICLE 8, OTC MAKES NO REPRESENTATIONS OR
      WARRANTIES WITH RESPECT TO THE ASSETS, INCLUDING NO
      WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR
      PURPOSE.

8.13  SURVIVAL.  The representations and warranties contained
      herein shall survive the execution of this Agreement for a
      period of one (1) year from the Closing Date.

8.14  MEANING OF KNOWLEDGE.  For purposes of this Article 8
      knowledge means the knowledge of facts or circumstances
      which would indicate to a reasonable person the existence
      of the fact or circumstance.

Article 9.  REPRESENTATIONS AND WARRANTIES OF PURCHASER.

9.1   STATUS.  Purchaser is a corporation duly organized and
      existing and in good standing under the laws of the State
      of Delaware.

9.2   CORPORATE AUTHORITY.  Purchaser has full power and
      authority to enter into this Agreement and to consummate
      the transaction contemplated herein.

9.3   CORPORATE ACTION.  All necessary corporate action has been
      duly taken by the Board of Directors and stockholders of 



                               40
<PAGE>
      Purchaser in order to authorize the execution and
      consummation of this Agreement.  Upon execution hereof by
      the Purchaser, this Agreement shall be the legal, valid
      and binding obligation of Purchaser enforceable in
      accordance with its terms.

9.4   CONSENTS.  No consent, approval, authorization, order,
      registration or qualification of or with any court or
      governmental agency or body is required for consummation
      by Purchaser of the transactions contemplated under this
      Agreement, which shall include the sale by OTC and Teknika
      B.V. of the Assets to Purchaser.

9.5   LITIGATION.  There are no actions, suits or proceedings
      pending, or to the knowledge of Purchaser, threatened
      against, Purchaser before any court, administrative agency
      or other body, in which any third party challenges or
      seeks to prevent, alter or materially delay the
      transactions contemplated under this Agreement.

9.6   CONFLICTS WITH OTHER AGREEMENTS.  Neither the execution
      and delivery of this Agreement nor the consummation of the
      sale and other transactions contemplated hereunder will
      conflict with, or result in a breach of, any of the terms
      and conditions or provisions of any law or any regulation,
      order, writ, injunction or decree of any court or
      government instrumentality or the corporate Charter or
      Bylaws of Purchaser, or of any agreement or other
      instrument to which Purchaser is bound.

9.7   NO BANKRUPTCY.  No proceeding has been commenced against
      or by Purchaser under the Federal Bankruptcy Code or any
      similar state statute.

9.8   NO BROKER.  Purchaser has not dealt with or retained a
      broker in connections with this transaction and no entity
      or individual is entitled to receive a fee as the result
      of the consummation of the transactions contemplated under
      this Agreement.

9.9   SURVIVAL.  The representations and warranties contained
      herein shall survive the execution of this Agreement for a
      period of one (1) year from the Closing Date.

9.10  MEANING OF KNOWLEDGE.  For purposes of this Article 9
      knowledge means the knowledge of facts or circumstances
      which would indicate to a reasonable person the existence
      of the fact or circumstance.




                               41
<PAGE>
Article 10.  COVENANTS.

      OTC hereby covenants with Purchaser as follows:

      From the Effective Date until the Closing or earlier
      termination of this Agreement, OTC shall operate and
      maintain the BGS Operations in a manner generally
      consistent with the manner in which OTC has operated and
      maintained the BGS Operations prior to the date hereof,
      and in all events in the ordinary course of business, and
      shall refrain entering into any transaction inconsistent
      with the transactions contemplated by this Agreement.

Article 11.  EMPLOYEES/EMPLOYEE BENEFITS.

11.1  Employees of OTC dedicated to the BGS Operations and which
      are identified in Schedule 4 hereto (the "Transferred
      Employees") will as of midnight on the Closing Date cease
      to be employed by OTC and will be offered employment by
      Purchaser, provided, however, that Purchaser acknowledges
      that certain employees located at OTC's principal offices
      in Durham, NC, are shared with OTC in marketing, sales
      (excluding field sales force which is not located at OTC's
      principal offices) and customer services and technical
      services for the BGS Operations.  Purchaser will make a
      reasonable effort in collaboration and agreement with OTC
      to identify specialists in the BGS Operations among these
      marketing, sales, customer services and technical services
      employees and attempt to offer employment and arrange
      transfer of some or all of them to the West Chester
      Manufacturing Facility.  These employees will then become
      "Transferred Employees" as defined in this Agreement.  If
      suitable arrangements cannot be made with respect to those
      marketing, sales, customer services and technical services
      employees, they will remain the obligations of OTC. 
      Purchaser agrees to maintain the same base salary levels
      for  a two [2] year period; provided that the foregoing
      shall, without prejudice to any other obligation assumed
      by Purchaser hereunder with respect to Transferred
      Employees, not obligate Purchaser to continue to employ
      any Transferred Employee for such period following the
      Closing Date.   Purchaser agrees to offer to Transferred
      Employees its then current fringe benefit package.
      Purchaser further agrees to waive the exclusions from
      coverage under group health, life and disability insurance
      for "pre-existing conditions" for such Transferred
      Employees.





                               42
<PAGE>
      The amount of severance pay entitlement on the Closing
      Date under the OTC's severance policy is a preserved
      severance pay entitlement ("Preserved Severance Pay") for
      each Transferred Employee.  The amount of the Preserved
      Severance Pay for each Transferred Employee is set forth
      in Schedule 4 hereto.  Should a Transferred Employee be
      laid off by Purchaser after transfer due to a reduction in
      force or position elimination, such employee will receive
      from Purchaser the greater of their Preserved Severance
      Pay or the amount of severance pay due under the
      Purchaser's severance pay policy.

      Purchaser undertakes no obligation to employ any persons
      other than a Transferred Employee.  An individual shall be
      included as a Transferred Employee notwithstanding the
      fact that the individual, on the Closing Date, is on leave
      of absence, vacation or on short-term disability.

11.2  All Transferred Employees shall become participants in the
      Purchaser's health and medical plans on the Closing Date. 
      Purchaser shall recognize for all benefit plan purposes,
      all service credit which OTC would have recognized under
      its comparable plans in effect on the Closing Date.

11.3  On and after the Closing Date, Purchaser shall be solely
      responsible for any and all benefits and the cost of any
      and all benefits to which the Transferred Employees are
      entitled pursuant to the terms of the Purchaser s plans or
      programs, in effect from time to time, provided, however,
      that liabilities relating to the claims of Transferred
      Employees for medical benefits incurred for medical
      services rendered to, and purchases of prescription drugs
      and other health care products made by such persons while
      actively employed by OTC shall be retained by OTC, subject
      to the provisions of its medical benefit plans as in
      effect on such date. 

      The amount of medical expenses applied at the Closing Date
      to satisfy the annual deductible and annual out of pocket
      expenses under the OTC Medical Plan for each Transferred
      Employee, will be recognized by the Purchaser as being
      applied to the Purchaser's health and medical plans'
      deductible and out of pocket expenses for the Purchaser's
      current plan year.

11.4  OTC will be responsible for paying all accrued vacation
      due to Transferred Employees up to the Closing Date.  All
      Transferred Employees will become eligible under
      Purchaser's vacation policy and retain all service credit
      that OTC would have recognized under its comparable plan
      in effect on the Closing Date.

                               43
<PAGE>
11.5  OTC shall, on and before the Closing Date, be solely
      responsible for the cost of any and all benefits to which
      Transferred Employees are entitled under the terms of
      OTC's retirement, health and welfare plans while employed
      by OTC, and subject to the terms of the applicable plan as
      in effect from time to time.

11.6  OTC and Purchaser agree to provide any information and to
      take any actions reasonably required to effect the
      provisions of this Article 11 and the following Article
      12.  OTC and Purchaser acknowledge, that it is their
      intention that no group health plan maintained by
      Purchaser shall constitute a successor plan to any of the
      OTC's group health plans, and Purchaser is not a successor
      employer with respect to OTC's group health plans, and OTC
      is not a predecessor employer with respect to Purchaser's
      group health plans, within the meaning of the COBRA health
      continuation coverage provisions contained in Internal
      Revenue Code Section 4908B(f) and the corresponding
      provisions of the Employee Retirement Income Security Act
      of 1974.

Article 12.  PENSION AND SAVINGS PLANS

12.1  OTC shall be responsible for all Transferred Employees
      benefits accrued through the Closing Date under its
      Pension Plan.

12.2  All Transferred Employees shall become eligible to
      participate in Purchaser's 401-K Plan.  Purchaser's 401-K
      Plan shall accept direct rollover contributions from the
      OTC incentive savings plan from Transferred Employees.  
      Additionally, Purchaser's 401-K Plan will accommodate the
      transfer of plan loans attributable to Transferred
      Employees whose account balances are transferred to
      Purchaser's 401-K Plan by a trustee to trustee transfer
      within ninety (90) days of the Closing Date.

12.3  Purchaser agrees that the Purchaser's 401-K Plan shall
      provide that the initial benefit of each Transferred
      Employee who rolls over its account balance from OTC's
      incentive savings plan to Purchaser's 401-K Plan shall at
      least be equal to such employee's transferred account
      balance from the OTC's incentive savings plan.  As of the
      Closing Date, each Transferred Employee shall be fully
      vested in their transferred balance under the Purchaser's
      401-K Plan.





                               44
<PAGE>
Article 13.  INDEMNIFICATION.

13.1  BY OTC.

      (a)      OTC hereby agrees to indemnify and hold Purchaser
               harmless for a period of one (1) year  from the
               Closing Date against any and all liabilities,
               damages, losses, claims, costs or expenses
               whatsoever arising out of or resulting from any
               breach of warranty or misrepresentation made in
               this Agreement by OTC or the nonperformance of any
               covenant or obligation to be performed on the part
               of OTC under this Agreement, or from any
               misrepresentation or omission from any
               certificate, instrument or paper delivered or to
               be delivered by OTC to Purchaser pursuant to this
               Agreement or in connection with the transactions
               herein  contemplated.  Except as expressly
               provided to the contrary elsewhere herein and
               without regard to the one (1) year limitation set
               forth in the prior sentence, OTC shall hold
               Purchaser harmless from and defend Purchaser
               against any and all obligations and liabilities,
               arising out of acts or omissions of OTC with
               respect to the BGS Operations prior to the Closing
               Date, including but not limited to any
               liabilities, damages, losses, cost or expenses
               awarded against OTC to plaintiff or any other
               party in the litigation as disclosed in Schedule
               3.1 attached hereto.

      (b)      After OTC has acknowledged in writing that it is
               indemnifying Purchaser with respect to litigation
               involving any claim, OTC will be entitled to
               assume the complete control of the defense or
               settlement (but only to the extent that such
               settlement includes a complete release of
               Purchaser) of any such litigation, provided that
               Purchaser may at its election and at its expense
               (but not in derogation of OTC's right to control)
               participate in any such defense to the extent that
               it may reasonably believe that such litigation
               will materially affect its ongoing business
               relating to the BGS Operations.  At OTC's
               reasonable request, Purchaser will cooperate with
               OTC in the preparation of any such defense, and
               OTC will reimburse Purchaser for any expenses
               incurred in connection with such request.




                               45
<PAGE>
13.2 BY PURCHASER.

      (a)      Purchaser hereby agrees to indemnify and hold OTC
               harmless for a period of one (1) year of the
               Closing Date against any and all liabilities,
               damages, losses, claims, costs or expenses
               whatsoever arising out of or resulting from any
               breach of warranty or misrepresentation made in
               this Agreement by Purchaser, or the nonperformance
               of any covenant or obligation to be performed on
               the part of Purchaser under this Agreement, or
               from any misrepresentation or omission from any
               certificate, instrument or paper delivered or to
               be delivered by Purchaser to OTC pursuant to this
               Agreement or in connection with the transactions
               herein contemplated. Without regard to the one (1)
               year limitation set forth in the prior sentence,
               Purchaser shall assume at the Closing Date and
               from that time henceforth hold OTC harmless from
               and defend OTC against any and all obligations and
               liabilities arising out of or relating to damages
               sustained or occurrences and events occurring with
               respect to the BGS Operations after the Closing
               Date.

      (b)      After Purchaser has acknowledged in writing that
               it is indemnifying OTC with respect to litigation
               involving any claim, Purchaser will be entitled to
               assume complete control of the defense or
               settlement (but only to the extent that such
               settlement includes a complete release of OTC) of
               any such litigation, provided that OTC may at its
               election and at its expense (but not in derogation
               of Purchaser's right to control) participate in
               any such defense to the extent that it may
               reasonably believe that such litigation will
               materially affect its business.  At Purchaser's
               reasonable request, OTC will cooperate with
               Purchaser in the preparation of any such defense,
               and Purchaser will reimburse OTC for any expenses
               incurred in connection with such requests.

Article 14.  CERTAIN SUBSTANTIVE PROVISIONS

14.1  TRANSITION.  OTC and Purchaser will mutually cooperate to
      (a) assist Purchaser in a smooth transition of the
      ownership of the Assets; (b) for their mutual benefit take
      all precautions possible to keep the negotiations of the
      parties to this Agreement and future plans of the parties
      confidential and not to disclose such plans to third
      parties.

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<PAGE>
14.2  ORDERS.  All orders placed before the Closing Date for
      delivery of BGS products after the Closing Date shall be
      deemed orders accepted by OTC for the benefit and account
      of Purchaser and Purchaser undertakes to accept and
      deliver those orders on the terms and conditions as agreed
      upon by OTC with the pertaining customer.

Article 15.  TAXES

15.1  DEFINITION.  For purposes of this Agreement, the term
      "Taxes" shall mean all federal, state, local foreign, and
      other net income, gross income, gross receipts, sales,
      use, ad valorem, transfer, franchise, profits, license,
      lease, service, service use, withholding, payroll,
      employment, excise, severance, stamp, occupation, premium,
      property, customs, duties or other taxes, fees,
      assessments, or charges of any kind whatsoever, together
      with any interest and any penalties, additions to tax or
      additional amounts with respect thereto, and the term
      "Tax" means any one of the foregoing Taxes.

15.2  INDEMNITY.  OTC shall be responsible for (and shall
      indemnify and hold harmless Purchaser from and against)
      all Taxes imposed primarily on OTC relating to the BGS
      Operations (i) with respect to all tax periods ending on
      or prior to the Closing Date or (ii) with respect to any
      tax periods beginning before the Closing Date and ending
      after the Closing Date, but only with respect to the
      portion of such period up to and including the Closing
      Date.  Purchaser shall be responsible for (and shall
      indemnify and hold harmless OTC from and against) all
      Taxes imposed primarily on Purchaser relating to the BGS
      Operations (i) with respect to all tax periods beginning
      after the Closing Date or (ii) with respect to all tax
      periods beginning before the Closing Date and ending after
      the Closing Date, but only with respect to the portion of
      such period commencing after the Closing Date.  With
      respect to any tax period beginning before the Closing
      Date and ending after the Closing Date, any Taxes for such
      period shall be apportioned between the pre-Closing Date
      and post-Closing Date partial periods based, in the case
      of other Taxes, on the basis of actual activities, taxable
      income or loss during such partial periods.

15.3  RESALE CERTIFICATE.  As a condition precedent to the
      consummation of the transactions contemplated by this
      Agreement, Purchaser shall provide OTC with a Pennsylvania
      or other applicable state resale certificate or similar
      document(s) that may be required by the Pennsylvania or 



                               47
<PAGE>
      other applicable state taxing authority in order to
      relieve OTC of the obligation to collect sales Tax on the
      sale of any inventory described in Article 1.1(f).

15.4  TRANSFER TAXES.  Purchaser shall be solely responsible for
      the payment of any Taxes associated with the transfer of
      title or beneficial interest to the Assets from OTC to
      Purchaser, including any Pennsylvania Realty Transfer Tax
      or any similar local Tax and any recordation Tax.

15.5  RETURN PREPARATION.  OTC and Purchaser shall cooperate to
      supply any and all information reasonably requested to
      complete any returns.

15.6  COOPERATION AND RECORDS RETENTION.  OTC and Purchaser
      shall each provide the other with such assistance as may
      reasonably be requested by any of them in connection with
      the preparation of any return, audit, or other examination
      by any taxing authority or judicial or administrative
      proceeding relating to liability for Taxes.  Purchaser
      shall retain and provide OTC with any records or other
      information that may be relevant to such returns, audit,
      examination, proceeding, or determination and shall not
      destroy or otherwise dispose of any such records without
      first providing OTC  with a reasonable opportunity to
      review and copy the same.

15.7  AUDITS AND OTHER PROCEEDINGS.  OTC, on the one hand, and
      Purchaser, on the other hand, agree to give prompt notice
      to each other of any proposed adjustment to Taxes (other
      than federal or state income taxes) relating to the BGS
      Operations for any tax period or partial period prior to
      the Closing Date.  OTC and Purchaser shall cooperate with
      each other in the conduct of any audit or other
      proceedings involving the BGS Operations for such periods
      and each may participate at its own expense, provided each
      party shall have the right to control the conduct of any
      such audit or proceeding for which such party (i) agrees
      that any resulting Tax is covered by the indemnity
      provided in Paragraph 15.2 of this Agreement, and (ii)
      demonstrates its ability to make such indemnity payment. 
      Notwithstanding the foregoing, OTC may not settle or
      otherwise resolve any such claim, suit or proceeding
      without the consent of Purchaser, such consent not to be
      unreasonably withheld and Purchaser may not settle or
      otherwise resolve any such claim, suit or proceeding
      without the consent of OTC, such consent not to be
      unreasonably withheld.




                               48
<PAGE>
Article 16.  TRANSITIONAL PERIOD

16.1  TRANSITIONAL SERVICES.   OTC and Purchaser agree that OTC
      shall enter into, on the Closing Date, a transitional
      services agreement with Purchaser whereby OTC will provide
      to Purchaser for a period up to six (6) months, commencing
      as of the Closing Date, certain customer services as well
      as certain software and electronic data processing
      services pertaining to accounts, bookkeeping, order entry,
      invoicing, manufacturing and payroll and all other
      administrative services provided as of the date hereof at
      the principal offices of OTC in Durham, NC, relating to
      the BGS Operations as set forth in and substantially in
      the form of Schedule 5 hereto (the "Transitional Services
      Agreement").  In Addition OTC agrees to provide Purchaser
      during such period, at Purchaser's request, with the
      necessary office facilities in Durham, NC, to accommodate  
      certain employees located in OTC's principal offices in
      Durham, NC, that may be transferred to Purchaser in
      accordance with Article 11 above.  The aforementioned 
      services shall be changed on a cost pass-through basis to
      Purchaser.

16.2  USE OF OTC NAME AND LOGO.  Notwithstanding the provisions
      of Paragraph 1.1 and 1.2 of this Agreement, Purchaser
      shall be permitted to use in the conduct and operation of
      the business of the BGS Operations the existing
      inventories of raw materials, work-in-progress and
      finished goods of the BGS Operations which bear the name
      "Organon Teknika" or OTC's logo, for the period necessary
      to exhaust the same, but in no event longer than six (6)
      months from and after the Closing Date.  In addition, to
      the extent as legally permitted, OTC shall allow Purchaser
      to use in the conduct and operation of the business of the
      BGS Operations the permits, consents, registrations,
      approvals, orders and authorizations necessary thereto
      previously obtained or applied for by OTC and the name
      "Organon Teknika" as applicable thereto, pending
      Purchaser's receipt of any such necessary permits,
      consents, approvals, etc., which Purchaser agrees to use
      its best efforts to obtain as soon as possible.

Article 17.  ANCILLARY AGREEMENTS.

17.1  DISTRIBUTION OF BGS PRODUCTS.   The parties agree that
      Teknika B.V. shall enter into, on the Closing Date, an
      agreement with Purchaser whereby Teknika B.V. and/or
      certain of its affiliated companies continue the sale and
      distribution of BGS products outside the United States of
      America under the terms and conditions as set forth in the


                               49
<PAGE>
      Distribution Agreement as attached in Schedule 6 hereto. 
      Teknika B.V. and/or its relevant affiliates shall continue
      such sale and distribution of BGS products on terms and
      conditions allowing them a reasonable distribution margin. 
      Such Agreement shall be for an initial period of (2) years
      and will automatically be renewed at the end of such
      period for an indefinite period of time unless or until it
      is terminated by either party by written notice.

17.2  SICKLEQUIK.  OTC and Purchaser agree to enter into, on the
      Closing Date, an agreement for the toll manufacture of
      Sicklequik (as defined in the Toll Manufacturing Agreement
      referred to hereinafter) by Purchaser under assignment of
      OTC at the West Chester Manufacturing Facility against the
      terms and conditions as set forth in the Sicklequik Toll
      Manufacturing Agreement as attached in Schedule 7 hereto. 
      Such agreement shall be for an initial period of three (3)
      years and will automatically be renewed at the end of such
      period for an indefinite period of time unless or until it
      is terminated by either party by written notice.

      The supply of Sicklequik by Purchaser to OTC under such
      agreement shall be on standard cost plus fifteen percent
      (15%) basis.

17.3  VARIOUS RAW MATERIALS.  Purchaser acknowledges that
      various raw materials, such as but not limited to the raw
      materials specified in Schedule 8 hereto (the "Raw
      Materials List"), are supplied to the BGS Operations by
      ICN Pharmaceuticals, Inc. of Costa Mesa, California
      ("ICN") who recently acquired the Cappel scientific
      products division of OTC.  OTC agrees, if the Purchaser
      wishes to continue to purchase such raw materials from the
      Cappel scientific products division, to use reasonable
      efforts without payment of any penalty or fee to have ICN
      continue the supply of such raw materials on terms and
      conditions to be negotiated in good faith.  However, ICN
      shall not be obligated to continue the supply of raw
      materials if it discontinues the manufacture thereof.

      OTC further entered into a written agreement with ICN for
      the supply by ICN of certain raw materials, including
      rabbit erythrocytes, manufactured with certain production
      animals acquired by ICN from OTC.  Such agreement is
      entered into for a period ending September 17, 1997 and
      will automatically be renewed at the end of such period
      for an indefinite period of time unless or until it is
      terminated by either party by written notice.




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<PAGE>
      OTC will, at the option of Purchaser, partially assign
      such supply agreement to the extent it relates to the
      purchase of rabbit erythrocytes to Purchaser.

Article 18.  MISCELLANEOUS.

18.1  NOTICES.  All notices in connection with this Agreement
      shall be in writing and be in the English language (as
      shall all other written communications and correspondence)
      and may be given by personal delivery, prepaid registered
      airmail letter, courier, or telefax (with a confirmation
      copy by courier), addressed to the party required or
      entitled to receive same at its address set forth below,
      or to such other address as it shall later designate by
      like notice to the other party.  The effective date of any
      notice if served by telefax shall be deemed the first
      business day in the city of destination following the
      dispatch thereof and if given by courier or prepaid
      registered airmail letter only respectively, it shall
      unless earlier received, be deemed served not later than
      three (3) business days or seven (7) calendar days
      respectively after date of dispatch.

      If to OTC:

      Organon Teknika Corporation
      100 Akzo Avenue
      Durham, NC  27712
      Fax No. 919/620-2211
      Attn.:  President
      Copy to:  General Counsel
      
      If to Teknika B.V.:

      Organon Teknika B.V.
      Boseind 15
      P.O. Box 84
      5280 AB Boxtel
      the Netherlands
      Fax No. 31 411 654201
      Attn.:  President

      cc:  Organon Teknika N.V.
               Veedijk 58
               2300 Turnhout
               Belgium
               Fax No. 32 14 428204
               Attn:  Counsel, Organon Teknika




                               51
<PAGE>         
      If to Purchaser:
      
      Biopool International, Inc.
      6025 Nicolle Street
      Ventura, California  93003
      Fax No. 805/654-0681
      Attn.:  Michael Bick, Ph.D.
      
      cc:
      Troop, Meisinger, Steuber & Pasich, LLP
      1940 Wilshire Boulevard
      Los Angeles, CA  90024-3902
      Fax No. 310/443-8569
      Attn:  Scott Alderton
      
18.2  EXPENSES.  Each party shall be required to pay its own
      expenses, including expenses of its counsel and
      accountants, even in the event that the transactions which
      are the subject matter hereof are not consummated for any
      reason whatsoever.

18.3  ENTIRE AGREEMENT, SUCCESSORS.  This Agreement, together
      with the Schedules and Exhibits attached hereto and all
      ancillary agreements referred to herein,  constitutes the
      entire agreement between the parties and there are no
      representations, warranties or commitments except as
      provided herein. This Agreement supersedes all prior and
      contemporaneous agreements, understandings, negotiations
      and discussions, whether written or oral.  All of the
      terms and provisions of this Agreement shall be binding
      upon and inure to the benefit and be enforceable by the
      respective heirs, personal representatives, successors and
      permitted assigns of the parties hereto.

18.4  MULTIPLE COUNTERPARTS.  This Agreement may be executed in
      one or more counterparts, each of which shall be deemed an
      original but all of which together shall constitute one
      and the same instrument.

18.5  GOVERNING LAW.  This Agreement shall be governed by and
      construed in accordance with the laws of the State of
      Delaware, excluding its principles of conflicts of laws.

18.6  NO WAIVER.  No exercise or waiver, in whole or in part, 
      of any right or remedy provided for in this Agreement
      shall operate as a waiver of any other right or remedy. 
      No delay on the part of any party in the exercise of any
      right or remedy shall operate as a waiver thereof.




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<PAGE>
18.7  PUBLICITY.  The parties shall consult with each other
      before issuing any press release or otherwise making any
      public statements with respect to this Agreement, and
      shall submit to the other party for prior written approval
      the contents of any such release and/or publication before
      release thereof, provided, however that nothing contained
      herein shall prohibit either party from making any
      disclosure which is required by law, including applicable
      Federal Securities Laws.

18.8  INVESTIGATION.  Purchaser acknowledges that it has had the
      opportunity, prior to the execution of this Agreement, to
      investigate the properties, assets, liabilities and
      financial conditions of the BGS Operations and to have
      access to all the books and records, key personnel and
      facilities related to the BGS Operations.

18.9  LEGAL ADVICE.  Purchaser acknowledges that it has had the
      opportunity to consult with independent counsel of its
      choice with regard to the transactions contemplated under
      this Agreement, prior to the execution of this Agreement.

18.10 SEVERABILITY.  In the event that one or more of the
      provisions hereof shall be held to be void, unlawful or
      unenforceable by any court, tribunal or administrative
      authority under any law or regulation, the validity,
      lawfulness and enforceability of the other provisions
      hereof shall not be affected thereby in any way.

18.11 ASSIGNMENT.  This Agreement is intended to be solely for
      the benefit of the parties hereto and is not intended to
      confer any benefits upon, or create any right in favor of,
      any person other than the parties hereto.  Accordingly
      this Agreement may not be assigned by either party without
      the prior written consent of the other party.

18.12 PREAMBLE AND HEADINGS.  The preamble and headings
      contained in this Agreement are for convenience of
      reference only and are not intended to have any
      substantive significance in interpreting this Agreement.

18.13 TERMINOLOGY.  Any reference in this Agreement to OTC's
      severance policy, OTC's health and medical plans, OTC's
      vacation policy, OTC's retirement, health and welfare
      plans, OTC's pension plan, OTC's incentive savings plan
      and any other OTC employment policies and practices shall
      be deemed to include any such plans and policies of the
      Akzo Nobel, Inc. to the extent they apply on the Closing
      Date to Employees dedicated to the BGS Operations.



                               53
<PAGE>
IN WITNESS WHEREOF, the parties hereto have executed this
Agreement effective as of the day and year first above written.

ORGANON TEKNIKA CORPORATION     BIOPOOL INTERNATIONAL, INC.


By:_______________________      By:_______________________

Title:____________________      Title:____________________


By:_______________________

Title:____________________



ORGANON TEKNIKA B.V. 


By:_______________________

Title:____________________





























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