LJL BIOSYSTEMS INC
S-1/A, 1998-03-05
LABORATORY ANALYTICAL INSTRUMENTS
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<PAGE>
   
     AS FILED WITH THE SECURITIES AND EXCHANGE COMMISSION ON MARCH 5, 1998
    
                                                      REGISTRATION NO. 333-43529
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
 
                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549
                            ------------------------
 
   
                                AMENDMENT NO. 5
                                       TO
                                    FORM S-1
    
 
                             REGISTRATION STATEMENT
                                     UNDER
                           THE SECURITIES ACT OF 1933
                           --------------------------
                              LJL BIOSYSTEMS, INC.
 
             (Exact Name of Registrant as Specified in Its Charter)
 
<TABLE>
<S>                              <C>                            <C>
           DELAWARE                          3826                  77-0360183
 (State or Other Jurisdiction    (Primary Standard Industrial   (I.R.S. Employer
              of                 Classification Code Number)     Identification
Incorporation or Organization)                                      Number)
</TABLE>
 
                                404 TASMAN DRIVE
                              SUNNYVALE, CA 94089
                                 (408) 541-8787
 
    (Address, Including Zip Code, and Telephone Number, Including Area Code,
                  of Registrant's Principal Executive Offices)
                           --------------------------
 
                                 LEV J. LEYTES
                     PRESIDENT AND CHIEF EXECUTIVE OFFICER
                                404 TASMAN DRIVE
                              SUNNYVALE, CA 94089
                                 (408) 541-8787
 
(Name, Address Including Zip Code, and Telephone Number Including Area Code, of
                               Agent for Service)
                           --------------------------
 
                                   COPIES TO:
 
<TABLE>
<S>                                       <C>
            MARK B. WEEKS                           PATRICK A. POHLEN
          VENTURE LAW GROUP                         COOLEY GODWARD LLP
      A Professional Corporation                    5 Palo Alto Square
         2800 Sand Hill Road                       Palo Alto, CA 94306
         Menlo Park, CA 94025
</TABLE>
 
                           --------------------------
 
        APPROXIMATE DATE OF COMMENCEMENT OF PROPOSED SALE TO THE PUBLIC:
As soon as practicable after the effective date of this Registration Statement.
                           --------------------------
 
    If any of the securities being registered on this form are to be offered on
a delayed or continuous basis pursuant to Rule 415 under the Securities Act of
1933, check the following box. / /
 
    If this form is filed to register additional securities for an offering
pursuant to Rule 462(b) under the Securities Act, please check the following box
and list the Securities Act registration statement number of the earlier
effective registration statement for the same offering. / /
 
    If this form is a post-effective amendment filed pursuant to Rule 462(c)
under the Securities Act, check the following box and list the Securities Act
registration statement number of the earlier effective registration statement
for the same offering. / /
 
    If this form is a post-effective amendment filed pursuant to Rule 462(d)
under the Securities Act, check the following box and list the Securities Act
registration statement number of the earlier effective registration statement
for the same offering. / /
 
    If delivery of the prospectus is expected to be made pursuant to Rule 434,
please check the following box. / /
                           --------------------------
 
    THE REGISTRANT HEREBY AMENDS THIS REGISTRATION STATEMENT ON SUCH DATE OR
DATES AS MAY BE NECESSARY TO DELAY ITS EFFECTIVE DATE UNTIL THE REGISTRANT SHALL
FILE A FURTHER AMENDMENT WHICH SPECIFICALLY STATES THAT THIS REGISTRATION
STATEMENT SHALL THEREAFTER BECOME EFFECTIVE IN ACCORDANCE WITH SECTION 8(a) OF
THE SECURITIES ACT OF 1933 OR UNTIL THIS REGISTRATION STATEMENT SHALL BECOME
EFFECTIVE ON SUCH DATE AS THE COMMISSION, ACTING PURSUANT TO SAID SECTION 8(a),
MAY DETERMINE.
 
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
<PAGE>
                                EXPLANATORY NOTE
 
   
    The purpose of this Amendment No. 5 is solely to file Exhibit 10.1 to the
Registration Statement as set forth below in Item 16(a) of Part II.
    
<PAGE>
                                    PART II
                     INFORMATION NOT REQUIRED IN PROSPECTUS
 
ITEM 16. EXHIBITS AND FINANCIAL STATEMENT SCHEDULES
 
    (a) Exhibits
 
   
<TABLE>
<CAPTION>
  NUMBER     DESCRIPTION
- -----------  --------------------------------------------------------------------------------------------------------
<C>          <S>
       1.1   Form of Underwriting Agreement.+
       3.1   Amended and Restated Certificate of Incorporation of the Company, as currently in effect.+
       3.2   Form of Amended and Restated Certificate of Incorporation of the Company, to be filed and become
               effective prior to the effective date of the offering.+
       3.3   Form of Amended and Restated Certificate of Incorporation of the Company, to be filed and become
               effective upon completion of the offering.+
       3.4   Bylaws of the Company.+
       3.5   Form of Amended and Restated Bylaws of the Company, to be effective upon completion of the offering.+
       4.1   See Exhibits 3.1, 3.2, 3.3, 3.4 and 3.5.+
       4.2   Specimen Stock Certificate.+
       4.3   Amended and Restated Investors' Rights Agreement dated June 17, 1997 between the Company and the
               individuals and entities listed in the signature pages thereto.+
       5.1   Opinion of Venture Law Group regarding the legality of the Common Stock being registered.+
      10.1   Agreement dated June 5, 1997 between the Company and FluorRx, Inc.** ***
      10.2   Form of Indemnification Agreement between the Company and each of its officers and directors.+
      10.3   Severance Agreement dated December 6, 1995 between the Company and Lev J. Leytes.+
      10.4   Lease between Company and Yageo USA Inc., as amended.+
      10.5   1994 Equity Incentive Plan and Forms of Agreements.+
      10.6   1997 Stock Plan and Forms of Agreements.+
      10.7   1998 Directors' Stock Option Plan and Forms of Agreements.+
      10.8   1998 Employee Stock Purchase Plan and Subscription Agreement.+
      10.9   Equipment Financing Agreement dated February 16, 1998 between the Company and Lease Management Services,
               Inc.+
      10.10  Warrant to Purchase Shares of Common Stock dated February 16, 1998 between the Company and Lease
               Management Services, Inc.+
      23.1   Consent of Independent Accountants.+
      23.2   Consent of Venture Law Group (included in Exhibit 5.1).+
      23.3   Consent of Kolisch, Hartwell, Dickinson, McCormack & Heuser.+
      24.1   Power of Attorney (see page II-4).+
      27.1   Financial Data Schedule.+
</TABLE>
    
 
- ------------------------
 
  * To be supplied by amendment.
 
 ** Confidential treatment requested as to certain portions of this Exhibit.
    Omitted portions will be filed separately with the Securities and Exchange
    Commission.
 
*** Replaces previously filed Exhibit.
 
 +  Previously filed.
 
                                      II-1
<PAGE>
                                   SIGNATURES
 
   
    Pursuant to the requirements of the Securities Act of 1933, the Registrant
has duly caused this Amendment No. 5 to Registration Statement on Form S-1 to be
signed on its behalf by the undersigned, thereunto duly authorized, in the city
of Sunnyvale, State of California on March 4, 1998.
    
 
<TABLE>
<S>                             <C>  <C>
                                LJL BIOSYSTEMS, INC.
 
                                By:              /s/ LEV J. LEYTES
                                     -----------------------------------------
                                                   Lev J. Leytes
                                       PRESIDENT, CHIEF EXECUTIVE OFFICER AND
                                         CHAIRMAN OF THE BOARD OF DIRECTORS
</TABLE>
 
   
    Pursuant to the requirements of the Securities Act of 1933, this Amendment
No. 5 to Registration Statement on Form S-1 has been signed by the following
persons in the capacities and on the dates indicated:
    
 
   
        SIGNATURE                       TITLE                      DATE
- --------------------------  ------------------------------  -------------------
                            President, Chief Executive
    /s/ LEV J. LEYTES         Officer and Chairman of the
- --------------------------    Board of Directors               March 4, 1998
      Lev J. Leytes           (Principal Executive
                              Officer)
 
    /s/ GALINA LEYTES*
- --------------------------  Executive Vice President and       March 4, 1998
      Galina Leytes           Director
 
                            Vice President of Finance and
   /s/ ROBERT T. BEGGS*       Administration (Principal
- --------------------------    Financial and Accounting         March 4, 1998
     Robert T. Beggs          Officer)
 
  /s/ GEORGE W. DUNBAR,
           JR.*
- --------------------------  Director                           March 4, 1998
  George W. Dunbar, Jr.
 
  /s/ MICHAEL F. BIGHAM*
- --------------------------  Director                           March 4, 1998
    Michael F. Bigham
 
   /s/ JOHN G. FREUND,
          M.D.*
- --------------------------  Director                           March 4, 1998
   John G. Freund, M.D.
 
  /s/ DANIEL S. JANNEY*
- --------------------------  Director                           March 4, 1998
     Daniel S. Janney
 
    
 
*By:      /s/ LEV J. LEYTES
      -------------------------
            Lev J. Leytes
          Attorney-in-Fact
 
                                      II-2
<PAGE>
                               INDEX TO EXHIBITS
 
   
<TABLE>
<CAPTION>
 EXHIBITS
- -----------
<C>          <S>
       1.1   Form of Underwriting Agreement.+........................................................................
 
       3.1   Amended and Restated Certificate of Incorporation of the Company, as currently in effect.+..............
 
       3.2   Form of Amended and Restated Certificate of Incorporation of the Company, to be filed and become
               effective prior to the effective date of the offering.+...............................................
 
       3.3   Form of Amended and Restated Certificate of Incorporation of the Company, to be filed and become
               effective upon completion of the offering.+...........................................................
 
       3.4   Bylaws of the Company.+.................................................................................
 
       3.5   Form of Amended and Restated Bylaws of the Company, to be effective upon completion of the offering.+...
 
       4.1   See Exhibits 3.1, 3.2, 3.3, 3.4 and 3.5.+...............................................................
 
       4.2   Specimen Stock Certificate.+............................................................................
 
       4.3   Amended and Restated Investors' Rights Agreement dated June 17, 1997 between the Company and the
               individuals and entities listed in the signature pages thereto.+......................................
 
       5.1   Opinion of Venture Law Group regarding the legality of the Common Stock being registered.+..............
 
      10.1   Agreement dated June 5, 1997 between the Company and FluorRx, Inc.** ***................................
 
      10.2   Form of Indemnification Agreement between the Company and each of its officers and directors.+..........
 
      10.3   Severance Agreement dated December 6, 1995 between the Company and Lev J. Leytes.+......................
 
      10.4   Lease between Company and Yageo USA Inc., as amended.+..................................................
 
      10.5   1994 Equity Incentive Plan and Forms of Agreements.+....................................................
 
      10.6   1997 Stock Plan and Forms of Agreements.+...............................................................
 
      10.7   1998 Directors' Stock Option Plan and Forms of Agreements.+.............................................
 
      10.8   1998 Employee Stock Purchase Plan and Subscription Agreement.+..........................................
 
      10.9   Equipment Financing Agreement dated February 16, 1998 between the Company and Lease Management Services,
               Inc.+.................................................................................................
 
      10.10  Warrant to Purchase Shares of Common Stock dated February 16, 1998 between the Company and Lease
               Management Services, Inc.+............................................................................
 
      23.1   Consent of Independent Accountants.+....................................................................
 
      23.2   Consent of Venture Law Group (included in Exhibit 5.1).+................................................
 
      23.3   Consent of Kolisch, Hartwell, Dickinson, McCormack & Heuser.+...........................................
 
      24.1   Power of Attorney (see page II-4).+.....................................................................
 
      27.1   Financial Data Schedule.+...............................................................................
</TABLE>
    
 
- ------------------------
 
  * To be supplied by amendment.
 
 ** Confidential treatment requested as to certain portions of this Exhibit.
    Omitted portions will be filed separately with the Securities and Exchange
    Commission.
 
*** Replaces previously filed Exhibit.
 
 +  Previously filed.

<PAGE>

                  DEVELOPMENT, LICENSE AND SALES AGREEMENT

     This DEVELOPMENT, LICENSE, AND SALES AGREEMENT is effective, as of the   
5TH day of June, 1997, (the "EFFECTIVE DATE") by and between LJL BIOSYSTEMS, 
INC, a California corporation having a principal place of business at 404 
Tasman Drive, Sunnyvale, California 94089 ("LJL") and FLUORRX, Inc., a 
Delaware corporation having a principal place of business at 979 Keystone Way, 
Carmel, Indiana 46032 ("FLUORRX").

                               WITNESSETH:

     WHEREAS, LJL possesses certain proprietary information, know-how, 
patents, trade secrets, and other intellectual property rights with respect to 
the development, use and manufacture of absorbance, fluorescence, 
chemiluminescence, and other detection systems;

     WHEREAS, FluorRx posses certain proprietary information, know-how, 
patents and other intellectual property rights with respect to its 
Fluorescence Life Time ("FLT") technology platform developed by [*] and owned 
or licensed to FluorRx; and

     WHEREAS, LJL desires to develop, manufacture, market, and otherwise 
commercialize such FLT technology platform, including incorporating such FLT 
technology platform into LJL systems in accordance with the terms and 
conditions set forth below.

     NOW, in consideration of the mutual promises contained in this Agreement, 
the parties hereto agree as follows:

                     ARTICLE I - DEFINITIONS AND CONSTRUCTION
                     ----------------------------------------

1.1  The following terms as used hereinafter in this Agreement shall have the
     meaning set forth in this Article:

     "AFFILIATE" shall mean any person, firm or corporation which controls, is 
controlled by or is under common control with FluorRx or LJL as the case may 
be, with "control" to mean ownership directly or indirectly of fifty percent 
(50%) or more of voting stock or equity interest of the subject entity.

     "CONFIDENTIAL INFORMATION" shall mean any information disclosed by one 
party (the "DISCLOSING PARTY") to the other party (the "RECEIVING PARTY"), 
which if in written, graphic, machine-readable, or other tangible form is 
marked as "confidential" or "proprietary", or which, if disclosed orally or by 
demonstration, is identified at the time of initial disclosure as confidential 
and reduced to writing in which it is identified as "confidential" within 
thirty (30) days of such disclosure.  Confidential Information includes, 
without limitation, source code, source listings, program listings, flow 
charts, databases, schematics, computer programs, drawings, specifications, 
data, design documents, methods, processes, formulae, inventions, discoveries, 
know-how, trade secrets, technical information or material, marketing plans, 
financial information, business plans, business strategies, customer lists, 
supplier lists, and other 


[*] = Material has been omitted pursuant to a request for confidential 
treatment.  Such material has been filed separately with the Securities and 
Exchange Commission.

                                       1

<PAGE>

information relating to the Disclosing Party's business, products and 
research, development, marketing, and manufacturing activities.      

     "FIELD" shall mean the field of [*].

     "INSTRUMENTS" shall mean the [*] developed by LJL pursuant to this
Agreement, for [*] and incorporating FLT technology platform.  Such Instruments
may include [*] which [*] the FLT technology platform, and [*] which are [*] the
FLT technology platform.

     "INTELLECTUAL PROPERTY" shall mean all current and future worldwide 
rights in patents, copyrights, trade secrets, trademarks, know-how, utility 
models, and other intellectual property and proprietary rights including, 
without limitation, all applications and registrations with respect thereto.

     "LJL INTELLECTUAL PROPERTY" shall mean the Intellectual Property and 
Confidential Information owned or licensed by LJL prior to the Effective Date 
of this Agreement or developed by LJL pursuant to the terms of this Agreement.

     "LICENSED INFORMATION" shall mean know-how, trade secrets, and other 
information owned by FluorRx, controlled by FluorRx, or to which FluorRx has a 
right to license or sublicense to LJL hereunder, related to the FLT technology 
platform, and developed as of the Effective Date or during the Term of this 
Agreement, and not including Licensed Patents.

     "LICENSED PATENTS" shall mean all foreign and domestic patents and patent 
applications, including provisional applications, as to which FluorRx has, as 
of the Effective Date or during the Term of this Agreement, the right to grant 
the licenses or sublicenses with respect thereto to LJL hereunder, containing 
claims covering or relating to the FLT technology platform, and which are 
filed with respect to inventions conceived prior to or during the Term of this 
Agreement in the United States or any foreign jurisdiction, including any 
continuation, continuation-in-part, division, substitute application, 
re-registration, or patent issued therefrom, any reissue, extension or patent 
term extension thereof, and any confirmation patent or registration patent or 
patent of addition based on any such patent, and including without limitation 
those patents and patent applications listed in EXHIBIT A and EXHIBIT B 
attached hereto.

     "LICENSED PRODUCTS" shall mean the Instruments and reagents developed by 
LJL pursuant to the terms of this Agreement, and that incorporate the 
inventions covered by or incorporating Licensed Patents.

     "LICENSED TECHNOLOGY" shall mean, collectively, the Licensed Patents and 
the Licensed Information, and all related materials thereto available to 
FluorRx, and all improvements thereto.

     "NEW PATENT" shall mean any domestic or foreign issued patent or filed 
patent application that is not listed in EXHIBIT A or EXHIBIT B, and that 
includes claims covering or relating to the FLT technology platform.

1.2  CONSTRUCTION.  As used in this Agreement, neutral pronouns and any 
variations thereof shall be deemed to include the feminine and masculine and 
all terms used in the singular shall be deemed to include the plural, and vice 
versa, as the context may require. The words "hereof, herein", and 
"hereunder", and other words of similar import refer to this Agreement as a 
whole, 


[*] = Material has been omitted pursuant to a request for confidential 
treatment.  Such material has been filed separately with the Securities and 
Exchange Commission.

                                       2

<PAGE>

including the Exhibits hereto, as the same may from time to time be amended or 
supplemented and not to any subdivision contained in this Agreement.  The word 
"including", when used hereof is not intended to be exclusive and means 
"including, without limitation".  References hereof to Section, subsection, 
paragraph or Exhibit shall refer to the appropriate Section, subsection, 
paragraph or Exhibit in or to this Agreement. Headings contained in this 
Agreement are for ease of reference only and shall have no legal effect.  The 
term "party" or "parties" shall mean, as the case may be, LJL or FluorRx 
individually or collectively, to the exclusion of other parties.  In 
constructing the terms of this Agreement, no presumption shall operate in 
favor of or against any party as a result of its counsel's role in drafting 
the terms and provisions hereof.

                             ARTICLE 2 - LICENSE GRANT
                             -------------------------

2.1  LICENSE TO LICENSED PATENTS.

     (a)  FluorRx hereby grants to LJL and its Affiliates an exclusive, 
royalty-bearing, worldwide right and license to use Licensed Patents set forth 
in EXHIBIT A to make, have made, develop, have developed, use, sell, have 
sold, offer to sell, import, have imported, export, have exported and 
otherwise distribute Licensed Products in the Field.

     (b)  FluorRx hereby grants to LJL and its Affiliates a non-exclusive, 
royalty-bearing worldwide right and license to use Licensed Patents set forth 
in EXHIBIT B to make, have made, develop, have developed, use, sell, have 
sold, offer to sell, import, have imported, export, have exported and 
otherwise distribute Licensed Products in the Field.

2.2  LICENSE TO LICENSED INFORMATION.  FluorRx hereby grants to LJL and its
     Affiliates an exclusive, paid-up, worldwide right and license to use
     Licensed Information to make, have made, develop, have developed, sell,
     have sold, offer to sell, import, have imported, export, have exported and
     otherwise distribute Licensed Products in the Field.

     2.3  COVENANT.  FluorRx agrees that LJL shall not be liable or considered
     to be in breach of this Agreement in the event that [*]; PROVIDED HOWEVER,
     [*]  To the extent reasonably possible, if LJL, its Affiliates, or
     licensees receives an inquiry relating to the purchase of any product [*],
     then LJL [*], its Affiliates, or licensees.  Similarly, LJL agrees that
     FluorRx shall not be liable or considered to be in breach of this Agreement
     in the event [*]; provided, however, [*].  To the extent reasonably
     possible, if FluorRx, its Affiliates, or licensees receives an inquiry
     relating to the purchase of any product  [*], then FluorRx [*].


2.4  RIGHTS TO FUTURE PATENTS AND TECHNOLOGY.  Promptly upon receipt by FluorRx
     of each New Patent, FluorRx shall fully disclose to LJL each New Patent
     owned or controlled (in whole or in part), or licensed by FluorRx, for
     purposes of [*].  In addition to the licenses granted under Sections 2.1
     and 2.2, [*].

2.5  NO OTHER RIGHTS.  Except as expressly granted herein, no rights to any
     FluorRx trademarks, copyrights, or tradenames are granted hereunder.


[*] = Material has been omitted pursuant to a request for confidential 
treatment.  Such material has been filed separately with the Securities and 
Exchange Commission.

                                       3
<PAGE>

                  ARTICLE 3 - ROYALTIES, FEES, AND EXCLUSIVITY
                  --------------------------------------------

3.1  ONE-TIME FEE.  In consideration of the licenses granted under Article 2 
hereto, LJL shall pay to FluorRx [*]  LJL shall pay: (i) [*] within [*] after 
the Effective Date of this Agreement: and (ii) [*] the earlier of: (a) [*] 
after [*]; or (b) [*].

3.2  ROYALTY.  In consideration of the licenses granted under Section 2.1 
hereto, LJL shall pay to FluorRx the royalties set forth in EXHIBIT C attached 
hereto.  Royalty payments shall be due and payable [*].

3.3  MINIMUM ROYALTY.

     (a)  MINIMUM ROYALTY PAYMENTS.  LJL agrees to pay the minimum royalty 
amounts set forth in EXHIBIT C attached hereto.  Each minimum royalty payment 
is due and payable [*] after the anniversary of the Effective Date, and all 
royalties paid under Section 3.2 and 3.3 shall be fully creditable toward the 
minimum royalty amounts, on a rolling credit basis. [*].

     (b)  EFFECT OF NON-PAYMENT.  In the event that LJL fails to make any 
minimum royalty payment due under Section 3.3(a) hereto, and LJL does not cure 
such failure to pay within thirty (30) days after receipt by LJL of notice 
thereof then, after reasonably considering LJL's reasons for nonpayment 
hereunder, and at FluorRx's sole discretion:

     (i)   [*]or [*].

     (ii)  the licenses granted under Sections 2.1 (a) and 2.2 shall become 
non-exclusive, the royalty rates set forth in Section 3.2 shall thereafter [*] 
and [*] or

     (iii) FluorRx may submit a written request to LJL for termination of this 
Agreement.  In the event that LJL denies such request, then the parties shall 
submit to binding arbitration the issue whether: (a) LJL abandoned the 
Licensed Technology and discontinued selling or commercializing the Licensed 
Products, without any intention of continuing to sell or commercialize the 
Licensed Products, in which event the Agreement shall be terminated; or (b) 
LJL was using its reasonable efforts to commercialize or sell the Licensed 
Products, in which event the Agreement shall not be terminated and either 
Section 3(b)(i) or 3(b)(ii) would govern the relationship of the parties 
hereunder.

     For purposes of Section 3(b)(iii), binding arbitration shall take place 
in San Jose, California, under the Commercial Arbitration Rules of the 
American Arbitration Association by one (1) arbitrator mutually agreed to by 
the parties or, in the event that the parties fail to appoint an arbitrator 
within ten (10) days after the initiation of the arbitration proceeding, 
appointed in accordance with such Rules.  Judgment on the award rendered by 
the arbitrator may be entered in any court having jurisdiction thereof.  The 
arbitration proceedings shall be governed by federal arbitration law and by 
the Rules, without reference to state arbitration law.  Judgment on the award 
rendered by the arbitrator may be entered in any court of competent 
jurisdiction, and shall be the sole remedy available under this Section 
3.3(b). The parties agree that, any provision of 


[*] = Material has been omitted pursuant to a request for confidential 
treatment.  Such material has been filed separately with the Securities and 
Exchange Commission.

                                       4
<PAGE>

applicable law notwithstanding, they will not request, and the arbitrator 
shall have no authority to award, punitive or exemplary damages against any 
party, but shall strictly conform to the provisions set forth in this Section 
3.3(b).

3.4  NEW PATENT FEES.  In the event that LJL elects to exercise its rights 
under Section 2.4 with respect to a New Patent, [*]. In addition, [*]; 
PROVIDED, HOWEVER, that in no event [*].  In addition, within [*], the amount 
of [*].

3.5  AUDIT RIGHTS.  LJL will permit an independent accounting firm retained by 
FluorRx and acceptable to LJL, to access LJL's records solely for purposes of 
auditing LJL's payment of the fees pursuant to Sections 3.2 and 3.3 hereto; 
PROVIDED, HOWEVER, that such audit: (i) shall be upon at least thirty (30) 
days prior notice to LJL; (ii) is conducted during LJL's normal business 
hours, and without disruption to LJL's business; (iii) is conducted at 
FluorRx's sole expense; and (iv) any information obtained or accessed as a 
result of such audit shall be considered LJL's Confidential Information, 
subject to the confidentiality provisions of Article 7 hereto, and the 
accounting firm shall be bound by obligations of confidentiality with respect 
to LJL's Confidential Information. In the event that the audit reveals an 
underpayment of [*] or more, then LJL shall [*].

                       ARTICLE 4 - OBLIGATIONS OF THE PARTIES
                       --------------------------------------

4.1  DELIVERABLES.  Within [*] after the payment of the [*], as set forth in 
Section 3.1, FluorRx shall arrange for [*], to meet with LJL at a mutually 
agreed site in Baltimore, Maryland, to deliver the Licensed Information at a 
mutually agreed time.  Prior to such meeting, LJL will provide to FluorRx a 
proposed agenda for such meeting.  [*].

4.2  UPDATES.  During the term of this Agreement each party shall generally 
keep the other party fully and promptly apprised of all technical and other 
developments and information relating to the Licensed Technology, as such 
developments and information becomes available to the apprising party.  In 
addition, each party hereto will provide to the other party hereto[*] relating 
to the Licensed Technology, in a form mutually agreed by the parties.

4.3  COOPERATION AND SUPPORT.  During the term of this Agreement, LJL and 
FluorRx agree to cooperate fully and in good faith to enhance the development 
of the Licensed Products.  In general, the duty to cooperate means that LJL's 
and FluorRx's scientific and management personnel involved in the development 
of the Licensed Products shall  communicate as frequently as reasonably 
necessary to facilitate the transfer of information and Confidential 
Information, including specifications, contemplated by this Agreement, discuss 
and review the same and coordinate the fulfillment of LJL's obligations under 
this Agreement.  If LJL participates in the sponsored research program, as set 
forth in Article 5 hereto, then [*]; and, if LJL does not participate, [*], 
and as reasonably necessary for LJL to fully exercise its rights under this 
Agreement, [*]  For purposes of this Agreement, the term "CONSULTING DAYS" 
shall mean eight (8) man-hours.  In the event that, at any time, LJL requests 
additional Consulting Days, then [*].  Nothing in this Agreement shall be 
interpreted as any guaranty on the part of LJL that the development 
contemplated by this Agreement win result in any commercially successful 
Licensed Products, or any obligation of LJL to develop any specific Licensed 
Products.


[*] = Material has been omitted pursuant to a request for confidential 
treatment.  Such material has been filed separately with the Securities and 
Exchange Commission.

                                       5
<PAGE>

4.4  CONSULTANT.  If at any time LJL requests the services and support of [*] 
then FluorRx will use its best efforts to make [*] available, subject to [*] 
personal schedule, and LJL agrees [*], including [*], associated with 
receiving such Consulting.

           ARTICLE 5 - SPONSORED RESEARCH PROGRAM; INTELLECTUAL PROPERTY
           -------------------------------------------------------------

5.1  SPONSORED RESEARCH PROGRAM.  At LJL's sole discretion, LJL may elect to 
participate in the [*].  LJL's involvement, if LJL so elects, shall be in 
accordance with the terms and conditions set forth in EXHIBIT D attached 
hereto. LJL shall notify FluorRx in writing in the event that LJL elects to 
participate in such sponsored research program.

5.2  LJL INTELLECTUAL PROPERTY.  FluorRx acknowledges and agrees that LJL or 
its licensors, as the case may be, are the sole and exclusive owners of all 
right, title and interest in and to the LJL Intellectual Property and Licensed 
Products.  No provision contained in this Agreement shall be construed to 
transfer to FluorRx, any FluorRx Affiliate, or any FluorRx customer any right, 
title or ownership interest in any LJL Intellectual Property that may be 
embodied in any Licensed Product.

5.3  FLUORRX INTELLECTUAL PROPERTY.  LJL acknowledges and agrees that FluorRx 
or its licensors, as the case may be, are the sole and exclusive owners of all 
right, title and interest in and to FluorRx's Confidential Information and 
Licensed Technology.  Except as expressly stated herein, no provision 
contained in this Agreement shall be construed to transfer to LJL, and LJL 
Affiliate or any LJL customer any right, title or ownership interest in 
FluorRx's Confidential Information or Licensed Technology.

5.4  LICENSED PRODUCTS INTELLECTUAL PROPERTY.  The parties hereto shall use 
their commercially reasonable efforts to maintain the strict allocation of 
Intellectual Property rights contemplated in Sections 5.2 and 5.3 hereto, 
during the development of the Licensed Products.  Nonetheless, should any 
patentable invention, trade secret or know-how or other Intellectual Property 
be developed by LJL in connection with the development of any Licensed 
Products hereunder in performance of this Agreement, then LJL shall own such 
Intellectual Property. LJL agrees to enter into good faith negotiations with 
FluorRx [*], including without limitation, [*].

5.5  SPONSORED RESEARCH PROGRAM INTELLECTUAL PROPERTY.  In the event that any 
Intellectual Property rights are conceived, developed, or reduced to practice 
during the development of applications under the sponsored research program, 
as set forth in EXHIBIT D attached hereto, then LJL shall exclusively own all 
such Intellectual Property rights with respect to such application.  In the 
event that any Intellectual Property rights are conceived, developed, or 
reduced to practice during the basic research and development under the 
sponsored research program, as set forth in EXHIBIT D attached hereto, then 
the parties agree to jointly own all such Intellectual Property rights 
thereto, with FluorRx being restricted from using such Intellectual Property 
rights within the Field.

5.6  NO RIGHTS GRANTED.  The parties hereto acknowledge and agree that, except 
as expressly granted herein, nothing in this Agreement is to be construed as a 
grant of or as an intention or commitment to grant to FluorRx any right, title 
or interest, of any nature whatsoever, to LJL Intellectual Property or to any 
products or processes encompassed thereby or any improvements or developments
thereon.


[*] = Material has been omitted pursuant to a request for confidential 
treatment.  Such material has been filed separately with the Securities and 
Exchange Commission.

                                       6
<PAGE>

              ARTICLE 6 - GOVERNMENT APPROVALS: PATENT PROTECTION
              ---------------------------------------------------

6.1 APPROVALS.  LJL shall solely be responsible for obtaining all required 
governmental approvals, including FDA approvals, for the development, testing, 
production, distribution, sale  and use of Licensed Products in the Field and 
for applications developed for LJL under the sponsored research program.  
FluorRx agrees to provide LJL, at LJL's expense, with any assistance 
reasonably requested by LJL, in obtaining such governmental approvals, 
including, without limitation, the furnishing of all relevant technical 
information and know-how presently or hereafter available to FluorRx, but 
excluding any documentation or data which FluorRx is bound by obligations to 
third parties to keep confidential.

6.2  PATENT PROTECTION.  Each party hereto shall promptly disclose to the 
other party hereto the making, conception or reduction to practice of any 
joint invention developed under the sponsored research program.  Each party 
shall apply for any patent(s) covering its own invention, and shall be 
responsible for any and all costs associated with prosecuting and maintaining 
such patents; PROVIDED, however, that if a party fails to prosecute or 
maintain any such patent (the "FIRST PARTY") within sixty (60) days of request 
in writing by the other party hereto (the "SECOND PARTY"), such Second Party 
shall have the right to prosecute and maintain such patent at its own expense 
and shall be solely entitled to ownership of the issuing or issued patent, and 
such First Party shall have, during the Term of this Agreement, a 
non-exclusive, royalty-free license to make, have made, use, sell, and import 
under such patent, and after the termination or expiration of this Agreement, 
such First Party shall then have a non-exclusive license to make, have made, 
use, sell, and import under such patent, under commercially reasonable royalty 
terms.
          
6.3  ACTION AGAINST INFRINGERS.  If during the term of this Agreement, LJL 
becomes aware of a third party infringement or threatened infringement of any 
Licensed Patent, or any misappropriation of Licensed Technology that is 
incorporated in or related to Licensed Products, the following provisions 
shall apply:

     6.3.1  LJL shall promptly give notice to FluorRx, with all available 
details.

     6.3.2  FluorRx shall use its best efforts to pursue in its name at its 
own expense to restrain such infringement and to recover profits and damages 
if such infringement relates to Licensed Technology or Licensed Patents in the 
Field.  LJL agrees at FluorRx's request to cooperate in the pursuit thereof, 
as is reasonably necessary, at FluorRx's expense.  FluorRx shall have the sole 
right to control prosecution but FluorRx shall keep LJL informed on a regular 
basis as to the status of such action.

     6.3.3  If FluorRx fails to take action under Section 6.3.2 within [*] 
after becoming aware of such infringement, in the first instance or by notice 
from LJL, then LJL, at any time prior to FluorRx thereafter taking action, 
shall have the right, but not the obligation to take such action in its own 
name; PROVIDED, HOWEVER, that: (i) such infringement relates to Licensed 
Technology or Licensed Patents in or covering Licensed Products in the Field; 
(ii) [*] any such action [*].  In the event that LJL exercises its rights 
under this Section 6.3.3, FluorRx shall have the right to observe in any such 
action hereunder, at its sole expense.  FluorRx shall cooperate with LJL, 


[*] = Material has been omitted pursuant to a request for confidential 
treatment.  Such material has been filed separately with the Securities and 
Exchange Commission.

                                       7
<PAGE>

at LJL's expense, as is reasonably necessary in any such action brought by 
LJL.  If LJL brings legal action, [*], including all of LJL's lost profits and 
damages.

                         ARTICLE 7 - CONFIDENTIALITY
                         ---------------------------

7. 1 DUTY OF NON-DISCLOSURE.  In the course of doing business in accordance 
with this Agreement, FluorRx will receive Confidential Information from LJL 
("LJL CONFIDENTIAL INFORMATION") and LJL will receive Confidential Information 
from FluorRx ("FLUORRX CONFIDENTIAL INFORMATION').  The parties shall: (i) 
maintain in strict confidence, and not disclose or reveal to third parties, 
any information of the other party hereto communicated under this Agreement; 
(ii) use such information only for the purposes specifically provided under 
this Agreement; and (iii) obligate all their personnel having access to such 
information to treat it in the same manner as their own proprietary 
information, except and to the extent as required by governmental authorities. 
 If either party becomes required by governmental authorities to disclose any 
such information to a third party, it shall provide prompt written notice 
thereof to the other party, and use its best efforts to secure confidential 
treatment thereof.  Notwithstanding the preceding, either party may disclose 
all or portions of the information to responsible persons or organizations who 
will be entrusted by a party hereto with the evaluation, development or 
packaging of the Licensed Products or as may otherwise be reasonably necessary 
to exercise such party's rights under this Agreement; PROVIDED, HOWEVER such 
party shall impose upon said persons or organizations substantially the same 
or stricter obligations than those imposed under this Section 7.1.

7.2  EXCLUSIONS.  Notwithstanding the foregoing, information shall not be 
treated as "Confidential Information" under this Agreement which:

     (i)   at the time of disclosure is in the public domain;

     (ii)  after disclosure has become part of the public domain by 
publication or otherwise, except by act or omission of the Receiving Party or 
its employees, agents or contractors; or

     (iii) the Receiving Party can establish by competent proof was in its 
possession at the time of disclosure hereunder; or

     (iv)  the Receiving Party receives, without restriction, from a third 
party, provided that such information was not obtained by said third party 
directly or indirectly from the Disclosing Party under an obligation of 
confidence.

7.3  PUBLICATIONS.  The contents of all proposed technical publications or 
oral presentations concerning the Licensed Products by one party (the 
"DISCLOSING PARTY") shall be submitted to the other party (the "NON-DISCLOSING 
PARTY") for approval prior to any such publication or oral presentations, 
which approval shall not be unreasonably withheld.  The parties expressly 
agree that all drafts of any publications or oral presentations by a 
Disclosing Party, including without 


[*] = Material has been omitted pursuant to a request for confidential 
treatment.  Such material has been filed separately with the Securities and 
Exchange Commission.

                                       8
<PAGE>

limitation manuscripts, abstracts, posters, and visual works based on the 
Sponsored Research Program or the Licensed Products shall be submitted to the 
Non-Disclosing Party at least [*] prior to the proposed submission of such 
drafts for publication or presentation.  Such publications and presentations 
shall not divulge any of the Non-Disclosing Party's Confidential Information 
without prior written approval of the Non-Disclosing Party, and the Disclosing 
Party shall promptly remove any Confidential Information identified and 
requested by the Non-Disclosing Party. If requested by the Non-Disclosing 
Party, the Disclosing Party shall delay the submission of any publication or 
presentation up to [*] from the date of the Non-Disclosing Party's request for 
such a delay to permit the preparation and filing of related patent 
applications.

7.4  CONFIDENTIALITY OF AGREEMENT.  Each party hereto agrees that the terms 
and conditions of this Agreement shall be treated as Confidential Information 
and shall not be disclosed to any third party; PROVIDED, HOWEVER, that each 
party hereto may disclose the terms and conditions of this Agreement:

     (i)   as required by any court or other governmental body;

     (ii)  as otherwise required by law;

     (iii) to each parties' own legal counsel;
     
     (iv)  in confidence, to that party's accountants, banks, and financing 
           sources and their advisors;

     (v)   in connection with the enforcement of this Agreement or rights 
           under this Agreement; or

     (vi)  in confidence, in connection with a merger or acquisition or 
           proposed merger or acquisition, or the like.


                     ARTICLE 8 - REPRESENTATION AND WARRANTIES
                     -----------------------------------------

8.1  LJL REPRESENTATIONS.  LJL represents, warrants and agrees as follows:

     (a)  POWER AND AUTHORITY.  LJL has the corporate power and authority to 
execute and deliver this Agreement, and perform its obligations hereunder.  
The execution, delivery and performance of this Agreement by LJL have been 
duly and validly authorized by LJL, and upon execution and delivery by 
FluorRx, this Agreement will constitute the valid and binding agreement of LJL 
enforceable against it in accordance with its terms.

     (b)  NO CONFLICT.  Neither LJL's execution and delivery of this Agreement 
nor its performance hereunder will result in a breach of any agreement or 
contract to which LJL may 



[*] = Material has been omitted pursuant to a request for confidential
treatment.  Such material has been filed separately with the Securities and
Exchange Commission.


[*] = Material has been omitted pursuant to a request for confidential 
treatment.  Such material has been filed separately with the Securities and 
Exchange Commission.

                                       9
<PAGE>

be a party, or violate any applicable law or regulation, LJL's Articles of
Incorporation or By-Laws, or any judgment or order of any court or
governmental agency with competent jurisdiction and authority over LJL.

8.2  FLUORRX REPRESENTATIONS.  FluorRx represents, warrants and agrees as 
follows:

     (a)  POWER AND AUTHORITY.  FluorRx has the corporate power and authority 
to execute and deliver this Agreement, and perform its obligations hereunder.  
The execution, delivery and performance of this Agreement by FluorRx have been 
duly and validly authorized by FluorRx, and upon execution and delivery by 
LJL, this Agreement will constitute the valid and binding agreement of FluorRx 
enforceable against it in accordance with its terms.

     (b)  NO CONFLICT.  Neither FluorRx's execution and delivery of this 
Agreement nor its performance hereunder will result in a breach of any 
agreement or contract to which FluorRx or any of its Affiliates may be a 
party, or violate any applicable law or regulation, FluorRx's Articles of 
Incorporation or By-Laws, or any judgment or order of any court or 
governmental agency with competent jurisdiction and authority over FluorRx.

     (c)  GRANTED RIGHTS.  FluorRx owns, or has the right to license, the 
FluorRx Intellectual Property related to the Licensed Technology that is the 
subject matter of this Agreement.

8.3  DISCLAIMER OF WARRANTIES.  EXCEPT AS SPECIFICALLY SET FORTH HEREIN, 
NEITHER PARTY MAKES ANY OTHER REPRESENTATIONS OR WARRANTIES, EXPRESS OR 
IMPLIED, INCLUDING ANY IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A 
PARTICULAR PURPOSE OR USE AND ANY OTHER STATUTORY WARRANTIES.

                         ARTICLE 9 - INDEMNIFICATION
                         ---------------------------

9.1  FLUORRX INDEMNIFICATION.  FluorRx assumes responsibility and shall 
indemnify LJL from all liability to third parties or expenses of litigation 
(including reasonable attorney's fees) for: (i) the breach or 
misrepresentation by FluorRx of its warranties or obligations hereunder; (ii) 
the negligent or intentionally wrongful acts or omissions of FluorRx; and 
(ill) any breach or alleged breach of any third party Intellectual Property 
rights by Licensed Technology and Licensed Products; EXCEPT to the extent such 
personal injury or property damages results from or arises out of: (a) the 
breach or misrepresentation by LJL of its warranties or obligations hereunder; 
or (b) the negligent or intentionally wrongful acts or omissions of LJL,

9.2  LJL INDEMNIFICATION.  LJL assumes responsibility and shall indemnify 
FluorRx from all liability to third parties or expenses of litigation 
(including reasonable attorney's fees) for personal injuries or property 
damages resulting from or arising out of: (i) the breach or misrepresentation 
by LJL of its warranties or obligations hereunder; or (ii) product liability 


[*] = Material has been omitted pursuant to a request for confidential 
treatment.  Such material has been filed separately with the Securities and 
Exchange Commission.

                                       10
<PAGE>

with respect to the Licensed Product; or (iii) the negligent or
intentionally wrongful acts or omissions of LJL, EXCEPT to the extent such
personal injury or property damages results from or arises out of: (a) the
breach or misrepresentation by FluorRx of its warranties or obligations
hereunder; or (b) negligent acts or omissions of FluorRx.

9.3  PROCEDURES.  Each party's obligation to indemnify the other party
under this Article 9 shall be subject to its: (i) being notified promptly
of such claim; (ii) being given sole control of the defense and/or
settlement thereof, and, (iii) receiving the cooperation of the indemnified
party.

9.4  LIMITATION OF LIABILITY. IN NO EVENT WILL EITHER PARTY HERETO BE
LIABLE FOR ANY SPECIAL, INCIDENTAL, CONSEQUENTIAL, PUNITIVE, OR INDIRECT
DAMAGES SUFFERED BY THE OTHER PARTY ARISING IN ANY WAY OUT OF THIS
AGREEMENT, HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY; PROVIDED,
HOWEVER, THAT THE FOREGOING LIMITATION SHALL NOT APPLY TO A BREACH BY
EITHER PARTY OF ARTICLE 7. THIS LIMITATION WILL APPLY EVEN IF THE PARTY HAS
BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.


                          ARTICLE 10 TERMINATION

10.1 TERM  The term of this Agreement shall commence as of the Effective Date 
hereof, and shall continue until: (i) the last to expire Licensed Patent; (ii) 
all Licensed Patents are held invalid or unenforceable by a court of competent 
jurisdiction; or (iii) terminated under the provisions of this Article 10.

10.2 TERMINATION.  Without prejudice to any other rights it may have hereunder 
or at law or in equity, either may terminate this Agreement immediately by 
written notice to the other party in the event the other party materially 
breaches any provision of this Agreement and fails to cure such breach within 
[*] after receiving written notice of the breach from the non-breaching party.

10.3 RIGHTS AND DUTIES UPON TERMINATION.  Termination of this Agreement, for 
whatever reason, shall not affect any rights or obligations accrued by either 
party prior to the effective date of termination and specifically stated 
herein to survive such termination.  Upon any termination of this Agreement, 
each party shall, and shall cause its Affiliates and sublicensees to, return 
to the other party within thirty (30) days all copies of Confidential 
Information of any kind communicated or delivered by the Disclosing Party 
still within the custody or control of the Receiving Party, including all 
copies thereof, in whatever form.

10.4  SURVIVABILITY.  The representations, warranties, covenants and 
obligations of the parties contained in Sections 10.3, 10.4, and Articles 1, 
5, 6, 7, 8, 9, and 11 hereof, shall survive the termination of this Agreement 
unless otherwise indicated therein.



[*] = Material has been omitted pursuant to a request for confidential 
treatment.  Such material has been filed separately with the Securities and 
Exchange Commission.


                                       11
<PAGE>

                          ARTICLE 11 - GENERAL PROVISIONS
                          -------------------------------

11.1 INDEPENDENT STATUS OF PARTIES.   The parties hereto acknowledge and agree 
that in connection with this Agreement, each party is an independent 
contractor with respect to the other, and nothing in this Agreement shall be 
considered to create an employment, agency, joint venture, partnership, 
fiduciary or other relationship between LJL and FluorRx.  Except as expressly 
provided herein: neither party shall have the right to bind the other to any 
agreement with a third party nor to represent itself as an agent, partner or 
joint venturer of the other or to incur any obligation or liability on behalf 
of the other party; (ii) the parties are not sharing in any profits of the 
other and are not otherwise jointly responsible for any of the other party's 
expenses, losses, or liabilities; and (iii) nothing herein shall be construed 
as providing for the sharing of profits or losses arising out of the efforts 
of either or both the parties.

11.2 FORCE MAJEURE.  Except as otherwise specifically provided herein, neither 
party shall be liable for loss, damage, detention, or delay, nor be deemed to 
be in default from causes beyond its reasonable control or from fire, strike, 
labor difficulties, act or omission of any governmental authority or of the 
other party, INSURRECTION or riot, embargo, delays or shortages in 
transportation or inability to obtain necessary labor, materials, or 
manufacturing facilities from usual sources or from defects or delays in the 
performance of its suppliers or subcontractors due to any of the foregoing 
enumerated causes.  In the event of delay due to any such cause, each party 
hereto undertakes to immediately notify the other party hereto and the date of 
delivery will be adjusted as maybe reasonably necessary.

11.3 NOTICES.  All notices hereunder shall be in writing and shall be 
personally delivered or duly dispatched in the United States by registered 
mail, or by overnight air courier, duly addressed, if to LJL, to:

                    LJL BIOSYSTEMS, INC.
                    404 Tasman Drive
                    Sunnyvale, California 94089
                    ATTN: Lev J. Leytes, P.E.
                                          President and CEO
     
or, if to FluorRx to:
     
                    FLUORRX
                    979 Keystone Way
                    Carmel, Indiana  46032
                    ATTN:  John Hurrell, Ph.D.
                                          President and CEO

                                       12
<PAGE>

or in either case to such address as the recipient party shall previously have 
designated for the purpose by written communication to and actually received 
by the giving party.  Notices shall be effective upon receipt.

11.4 AMENDMENTS.  This Agreement embodies all of the understandings and 
obligations between the parties concerning the Licensed Products and the 
Licensed Technology, and any amendments and supplements shall not be valid 
unless executed in writing by duly authorized officers of both parties.

11.5 ASSIGNABILITY.  This Agreement may not be assigned by either party hereto 
without the prior written consent of the other party, EXCEPT either party may 
assign this Agreement in connection with the sale or assignment of 
substantially its business to which this Agreement relates.  Any assignment of 
this Agreement shall be conditioned upon the assignee agreeing to be bound by 
all the terms of this Agreement.

11.6 GOVERNING LAW: VENUE.  This Agreement shall be governed and construed in 
accordance with the laws of the State of California, without regard to 
conflicts of laws principles, regardless of the place of its execution or 
performance.  Any dispute, controversy, difference, or claim arising between 
the parties, out of, in relation to, or in connection with this Agreement, or 
any breach thereof, shall brought in the venue of the party against which the 
action initially is brought.

11.7 SERVERABILITY.  In the event that any term, clause or provision of this 
Agreement is construed to be or adjudged invalid, void, contrary, to law or 
public policy, or otherwise unenforceable: (i) the remaining provisions of 
this Agreement as well as any portions thereof shall remain in full force and 
effect; (ii) the affected provision shall remain unenforceable to the fullest 
extent of the parties' stated intentions consistent with applicable law and 
public policy; and (iii) the parties shall negotiate, in good faith, a 
substitute, valid and enforceable provision which most nearly reflects the 
parties' stated intention as set forth in such affected provision.

11.8 ENTIRE AGREEMENT.  This Agreement, including the Exhibits hereto, 
constitutes the entire agreement of the parties with respect to the subject 
matter hereof and supersedes all prior representations, assurances, courses of 
dealing, agreements and undertaking, whether written or oral, between them 
concerning such subject matter.

     IN WITNESS WHEREOF, the parties have executed this Agreement by their 
qualified representatives effective as of the date first above written.

     LJL BIOSYSTEMS                               FLUORRX
     
By:  /s/ Lev Leytes                       By:  /s/ John Hurell, Ph.D.
     -------------------------------           -------------------------------

Title:  President & CEO                   Title:  President & CEO  
        ---------------------------               ----------------------------



                                       13
<PAGE>


Date:  June 5, 1997                       Date: June 5, 1997     
       ---------------------------              ------------------------------




                                       14

<PAGE>

                                      EXHIBIT A
                                      ---------

               FLUORRX PATENTS LICENSED TO LJL ON AN EXCLUSIVE BASIS
               -----------------------------------------------------

ISSUED PATENTS
- --------------
[*]

PATENT APPLICATIONS
- -------------------
[*]


[*] = Material has been omitted pursuant to a request for confidential 
treatment.  Such material has been filed separately with the Securities and 
Exchange Commission.

<PAGE>

                                      EXHIBIT B
                                      ---------

              FLUORRX PATENTS LICENSED TO LJL ON A NON-EXCLUSIVE BASIS


PATENT NO.               TITLE
- ----------               -----

[*]                      [*]


[*] = Material has been omitted pursuant to a request for confidential 
treatment.  Such material has been filed separately with the Securities and 
Exchange Commission.

<PAGE>

                                      EXHIBIT C
                                      ---------

                                      ROYALTIES

I.   INSTRUMENTATION
      A.    [*]
      B.    [*]

II.  REAGENTS

     [*]

III. MINIMUM ROYALTIES

     [*]

     Wherein the first year is the period extending from the Effective Date 
through twelve (12) months thereafter, and each subsequent year is measured at 
the anniversary of the Effective Date.

"NET SALES" shall mean the gross invoiced price received by LJL for: [*]


[*] = Material has been omitted pursuant to a request for confidential 
treatment.  Such material has been filed separately with the Securities and 
Exchange Commission.

<PAGE>

                                     EXHIBIT D
                                     ---------

                             SPONSORED RESEARCH PROGRAM
                             --------------------------

STATEMENT OF PURPOSE: LJL and FluorRx will work together to identify each 
specific project under the program, including without limitation, the research 
goals, milestones, management, and staffing requirements, of each such project.

I.   DIRECT COSTS (PER YEAR):

                       [*]

II.  APPLICATION DEVELOPMENT:

                       [*]

III. BASIC R&D:

                       [*]

IV.  COMMITMENT:

                       [*]


[*] = Material has been omitted pursuant to a request for confidential 
treatment.  Such material has been filed separately with the Securities and 
Exchange Commission.



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