Document:

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                                                                   EXHIBIT 10-34

                                COMMERCIAL LEASE

1.       PARTIES:

         CLEMATIS LLC, with a principal place of business at 411 Waverley Oaks
         Road, Suite 340, Waltham, MA, 02452, LESSOR, which expression shall
         include its heirs, successors, and assigns where the context so admits,
         does hereby lease to INTERLEUKIN GENETICS, INC., 135 Beaver Street,
         Waltham, MA, 02452, LESSEE, which expression shall include its
         successors, executors, administrators, and assigns where the context so
         admits, and the LESSEE hereby leases the following described premises:

2.       LEASED PREMISES:

         6,011 sq. ft. + / - on the third floor of 135 Beaver Street, Waltham,
         MA, 02452, together with the right to use in common, with others
         entitled thereto, the hallways, stairways, and elevators, necessary for
         access to said Leased Premises, and lavatories nearest thereto. See
         attached Exhibit A-1 and A-2 for layout of Administrative and
         Laboratory spaces, respectively.

3.       TERM:

         The Term of this lease shall be for five years commencing on July 1,
         2001 or upon substantial completion of build out required per Exhibit
         A-1 and ending on June 30, 2006. If the Leased Premises are ready for
         occupancy on a date other than July 1, 2001, the rent will be adjusted
         on a daily prorated basis. The parties acknowledge that occupancy and
         use of the laboratory space per Exhibit A-2 may be delayed due to
         untimely availability of laboratory equipment. However, substantial
         completion of administrative space shall constitute substantial
         completion for purposes of LESSEE's obligations hereunder.

         In the event substantial completion, per Exhibit A-1, does not occur by
         August 1, 2001, LESSEE shall have right to cancel the Lease in which
         event all deposits shall be returned to LESSEE.

4.       RENT:

         A. BASE RENT:

         The LESSEE shall pay to the LESSOR Base Rent at the rate of $213,390.50
         dollars per year, payable in advance in monthly installments of
         $17,782.54.

         B. ADDITIONAL RENT FOR AMORTIZATION:

         The LESSEE shall pay to LESSOR, as Additional Rent, $4,249.41 per
         month, which amortizes Tenant Improvements totaling an allowed
         $200,000, over sixty months, at 10% interest.

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         C. FIRST MONTH RENT:

         Upon the execution of this lease the LESSEE shall pay to the LESSOR the
         first months rent in the amount of $22,031.95 ($17,782.54 plus
         $4,249.41).

         D. CHARGE FOR TENANT IMPROVEMENTS:

         Prior to occupancy of the Premises LESSEE shall pay $12,098 to LESSOR
         for Tenant Improvement charges in excess of the $200,000 allowance in
         4.B. above.

         E. LESSEE INSTALLED IMPROVEMENTS

         LESSEE shall acquire and install at its convenience, two items listed
         in the June 1, estimate of costs for Lab Furniture ($58,209.00) and BSC
         4' ($8,345.00). Such installation shall be coordinated with the
         LESSOR's project supervisor, to avoid interference with the LESSOR's
         work schedule, hereunder.

5.       SECURITY DEPOSIT:

         Upon the execution of this lease, the LESSEE shall pay to the LESSOR
         the amount of $96,520.24 dollars, which shall along with the $10,175.00
         previously paid shall be held as a security for the LESSEE's
         performance as herein provided and refunded to the LESSEE at the end
         of this lease subject to the LESSEE's satisfactorily compliance with
         the conditions hereof.

         On the Lease anniversary date each year, the Security Deposit, totaling
         $106,695.24, shall be credited to the subsequent month's rent at the
         rate of $21,339.05 per month.

         The Security Deposit will earn 3% simple interest, payable annually to
         the LESSEE.

6.       RENT ADJUSTMENT:

         A. TAX ESCALATION: If any tax year commencing with the fiscal year end
         6/03, the real estate taxes on the land and buildings, of which the
         leased premises are a part, are in excess of the amount of the real
         estate taxes thereon for the fiscal year end 6/02 (hereinafter called
         the "Base Year"), LESSEE will pay to LESSOR as additional rent
         hereunder, when and as designated by notice in writing by LESSOR, 6.3
         percent of such excess that may occur in each year of the term of this
         lease or any extension or renewal thereof and proportionately for any
         part of a fiscal year. If the LESSOR obtains an abatement of any such
         excess real estate tax, a proportionate share of such abatement, less
         the reasonable fees and costs incurred in obtaining the same, if any,
         shall be refunded to the LESSEE.

         B. OPERATING COST ESCALATION: The LESSEE shall pay to the LESSOR as
         additional rent hereunder when and as designated by notice in writing
         by LESSOR, 6.3 percent of any increase in operating expenses over
         those incurred during the calendar year 2001. Operating expenses are
         defined for the purposes of this agreement as:

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         See Attached Appendicies.

         This increase shall be prorated should this lease be in effect with
         respect to only a portion of any calendar year.

 7.      UTILITIES:

         The LESSEE shall pay, as they become due, all bills for electricity and
         other utilities (whether they are used for furnishing heat or other
         purposes) that are furnished to the leased premises. The LESSOR agrees
         to provide all other utility service and to furnish reasonably hot and
         cold water and reasonable heat and air conditioning (except to the
         extent that the same are furnished through separately metered utilities
         or separate fuel tanks as set forth above) to the leased premises, the
         hallways and stairways during normal business hours on regular business
         days of the heating and air conditioning seasons of each year, to
         furnish elevator service and to light passageways and stairways during
         business hours, and to furnish such cleaning service as is customary in
         similar buildings in said city or town, all subject to interruption due
         to any accident, to the making of repairs, alterations, or
         improvements, to labor difficulties, to trouble in obtaining fuel,
         electricity, service, or supplies from the sources from which they are
         usually obtained for said building, or to any cause beyond the LESSOR's
         control. If the leased premises are not separately metered for Tenant
         electric (lights and plugs), Lessee will pay in monthly installments,
         as additional rent to Lessor, at the annual rate of $1.25 per rentable
         sq. ft. per year for Tenant electricity charges.

         LESSOR shall have no obligation to provide utilities or equipment other
         than the utilities and equipment within the premises as of the
         commencement date of this lease. In the event LESSEE requires
         additional utilities or equipment, the installation and maintenance
         thereof shall be the LESSEE's sole obligation, provided that such
         installation shall be subject to the written consent of the LESSOR.

8.       USE OF LEASED PREMISES:

         The LESSEE shall use the leased premises only for the purpose of
         general office, research and clinical lab, and administrative use. The
         LESSEE uses will comply with Section 3.251 of the Zoning Ordinances of
         the City of Waltham which provides that "Research laboratory uses and
         structures shall comply with all applicable requirements of the General
         Ordinances of the City of Waltham and such regulations as are
         promulgated thereunder."

9.       COMPLIANCE WITH LAWS: The LESSEE acknowledges that no trade or
         occupation shall be conducted in the leased premises or use made
         thereof which will be unlawful, improper, noisy or offensive, or
         contrary to any law or any municipal by-law or ordinance in force in
         the city or town in which the premises are situated.

10.      FIRE INSURANCE: The LESSEE shall not permit any use of the leased
         premises which will make voidable any insurance on the property of
         which the leased premises are a part, or

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         on the contents of said property or which shall be contrary to any law
         or regulation from time  to time established by the New England Fire
         Insurance Rating Association, or any similar body succeeding to its
         powers. The LESSEE shall on demand reimburse the LESSOR, and all other
         tenants, all extra insurance premiums caused by the LESSEE's use of
         the premises.

11.      MAINTENANCE:

         A. LESSEE'S OBLIGATIONS: The LESSEE agrees to maintain the leased
            premises in good condition, damage by fire and other casualty only
            excepted, and whenever necessary, to replace plate glass and other
            glass therein that is damaged by the negligence of the LESSEE or
            invitees of the LESSEE, acknowledging that the leased premises are
            now in good order and the glass whole. The LESSEE shall not permit
            the leased premises to be overloaded, damaged, stripped or
            defaced, nor suffer any waste. LESSEE shall obtain written consent
            of LESSOR before erecting any sign on the exterior of the
            Premises.

         B. LESSOR'S OBLIGATIONS: The LESSOR agrees to maintain the structure of
         the building of which the leased premises are a part in the same
         condition as it is at the commencement of the term or as it may be put
         in during the term of this lease, reasonable wear and tear, damage by
         fire and other casualty only excepted, unless such maintenance is
         required because of the LESSEE or those for whose conduct the LESSEE is
         legally responsible.

12.      ALTERATIONS - ADDITIONS:

         A) The LESSEE shall not make structural alterations or additions to the
         leased premises, but may make non-structural alterations provided the
         LESSOR consents thereto in writing, which consent shall not be
         unreasonably withheld or delayed. All such allowed alterations shall be
         at LESSEE's expense and shall be in quality at least equal to the
         present construction. LESSEE shall not permit any mechanics' liens, or
         similar liens, to remain upon the leased premises for labor and
         material furnished to LESSEE or claimed to have been furnished to
         LESSEE in connection with work of any character performed or claimed to
         have been performed at the direction of LESSEE and shall cause any such
         lien to be released of record forthwith without cost to LESSOR. Any
         alterations or improvements made by the LESSEE shall become the
         property of the LESSOR at the termination of occupancy as provided
         herein.

         B)   (i) LESSOR agrees to construct tenant improvements, in accordance
              with the mutually agreeable floor plan as illustrated in Exhibit
              A. (ii) The LESSOR agrees that upon LESSEE'S request, LESSOR shall
              amortize the charges for the Tenant Improvements, up to a total of
              $200,000.00, over the lease term at an annual carrying charge of
              10%. LESSOR will Amend this Lease to incorporate the amortized
              Tenant Improvements upon final pricing, and the LESSEE shall pay
              monthly, as additional rent, the monthly amortized amount. (iii)
              In the event the charges for Tenant Improvements exceed the

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              $200,000.00 allowance, prior to occupancy LESSEE will pay the
              excess to LESSOR. (iv) In the event that LESSOR identifies that
              the charges for the requested Tenant Improvements will exceed the
              Allowance, LESSOR will identify the excess to LESSEE for prior
              review, and LESSEE shall, within five working days, accept the
              charges or modify the plans to reduce the costs, (v) The LESSEE
              may seek comparative estimates for the Tenant Improvements from a
              competent third party. In that event and if LESSEE demonstrates
              to LESSOR that the comparative estimate, was lower, but within
              5% of the LESSOR's charge, LESSOR shall reduce LESSOR's charges
              to the comparative estimate.

13.      ASSIGNMENT - SUBLEASING:

         The LESSEE shall not assign or sublet the whole or any part of the
         leased premises without LESSOR's prior written consent, which consent
         shall not to be unreasonably withheld, and upon LESSOR's determination
         that the assignee or sublessee is of equal or greater financial
         competence and will make similar or acceptable use of the Premises.
         Notwithstanding such consent, LESSEE shall remain liable to LESSOR for
         the payment of all rent and for the full performance of the covenants
         and conditions of this lease. See Addendum.

14.      SUBORDINATION:

         This lease shall be subject and subordinate to any and all mortgages,
         deeds of trust and other instruments in the nature of a mortgage, now
         or at any time hereafter, a lien or liens on the property of which the
         leased premises are a part and the LESSEE shall, when requested,
         promptly execute and deliver such written instruments as shall be
         necessary to show the subordination of this lease to said mortgages,
         deeds of trust or other such instruments in the nature of a mortgage.

15.      LESSOR'S ACCESS:

         The LESSOR or agents of the LESSOR may, at reasonable times, enter to
         view the leased premises and may remove placards and signs not approved
         and affixed as herein provided, and make repairs and alterations as
         LESSOR should elect to do and may show the leased premises to others,
         and at any time within three (3) months before the expiration of the
         term, may affix to any suitable part of the leased premises a notice
         for letting or selling the leased premises or property of which the
         leased premises are a part and keep the same so affixed without
         hindrance or molestation.

16.      INDEMNIFICATION AND LIABILITY:

         The LESSEE shall save the LESSOR harmless from all loss and damage
         occasioned by the use or escape of water or by the bursting of pipes
         due to the negligence of the LESSEE or the invitees of the LESSEE, as
         well as from any claim or damage resulting from neglect in not removing
         snow and ice from the roof of the building or from the sidewalks
         bordering upon the premises so leased, or by any nuisance made or
         suffered on the leased premises,

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         unless such loss is caused by the neglect of the LESSOR. The removal
         of snow and ice from the sidewalks bordering upon the leased premises
         shall be LESSOR's responsibility.

17.      LESSEE'S LIABILITY INSURANCE:

         The LESSEE shall maintain with respect to the leased premises and the
         property of which the leased premises are a part comprehensive public
         liability insurance in the amount of 1 MILLION CSL with property damage
         insurance in limits of 1 MILLION CSL in responsible companies qualified
         to do business in Massachusetts and in good standing therein insuring
         the LESSOR and well as LESSEE against injury to persons or damage to
         property as provided. The LESSEE shall deposit with the LESSOR
         certificates for such insurance at or prior to the commencement of the
         term, and thereafter within thirty (30) days prior to the expiration of
         any such policies. All such insurance certificates shall provide that
         such policies shall not be canceled without at least ten (10) days
         prior written notice to each assured named therein.

18.      FIRE, CASUALTY - EMINENT DOMAIN:

         Should a substantial portion of the leased premises, or of the property
         of which they are a part be substantially damaged by fire or other
         casualty, or be taken by eminent domain, the LESSOR may elect to
         terminate this lease. When such fire, casualty, or taking renders the
         leased premises substantially unsuitable for their intended use, a just
         and proportionate abatement of rent shall be made, and the LESSEE may
         elect to terminate this lease if;

         (a)      The LESSOR fails to give written notice within thirty (30)
                  days of intention to restore leased premises, or

         (b)      The LESSOR fails to restore the leased premises to a condition
                  substantially suitable for their intended use within ninety
                  (90) days of said fire, casualty or taking.

         The LESSOR reserves, and the LESSEE grants to the LESSOR, all rights
         which the LESSEE may have for damages or injury to the leased premises
         for any taking by eminent domain, except for damage to the LESSEE's
         fixtures, property or equipment.

19.      DEFAULT AND BANKRUPTCY:

         In the event that:

         (a)      The LESSEE shall default in the payment of any installment of
                  rent or other sum herein specified and such default shall
                  continue for ten (10) days after written notice thereof; or

         (b)      The LESSEE shall default in the observance or performance of
                  any other of the LESSEE's covenants, agreement, or obligations
                  hereunder and such default shall not be corrected within
                  thirty (30) days after written notice thereof; or

         (c)      The LESSEE shall be declared bankrupt or insolvent according
                  to law, or, if any assignment shall be made of LESSEE's
                  property for the benefit of creditors,

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         then the LESSOR shall have the right thereafter, while such default
         continues, to re-enter and take complete possession of the leased
         premises, to declare the term of this lease ended, and remove the
         LESSEE's effects, without prejudice to any remedies which might be
         otherwise used for arrears of rent or other default. The LESSEE shall
         indemnify the LESSOR against all loss of rent and other payments which
         the LESSOR may incur by reason of such termination during the residue
         of the term. If the LESSEE shall default, after reasonable notice
         thereof, in the observance or performance of any conditions or
         covenants on LESSEE's part to be observed or performed under or by
         virtue of any of the provisions in any article of this lease, the
         LESSOR, without being under any obligation to do so and without thereby
         waiving such default, may remedy such default for the account and at
         the expense of the LESSEE. If the LESSOR makes any expenditures or
         incurs any obligations for the payment of money in connection
         therewith, including but not limited to, reasonable attorney's fees in
         instituting, prosecuting or defending any action or proceeding, such
         sums paid or obligations insured, with interest at the rate of 15 per
         cent per annum and costs, shall be paid to the LESSOR by the LESSEE as
         additional rent.

20.      NOTICE:

         Any notice from the LESSOR to the LESSEE relating to the leased
         premises or to the occupancy thereof, shall be deemed duly served, if
         left at the leased premises addressed to the LESSEE, or if mailed to
         the leased premises, registered or certified mail, return receipt
         requested, postage prepaid, addressed to the LESSEE. Any notice from
         the LESSEE to the LESSOR relating to the leased premises or to the
         occupancy thereof, shall be deemed duly served, if mailed to the LESSOR
         by registered or certified mail, return receipt requested, postage
         prepaid, addressed to the LESSOR at such address as the LESSOR may from
         time to time advise in writing. ALL rent notices shall be paid and sent
         to the LESSOR at 411 Waverley Oaks Road, Suite 340, Waltham, MA 02452.

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21.      SURRENDER:

         The LESSEE shall at the expiration or other termination of this lease
         remove all LESSEE's goods and effects from the leased premises,
         (including, without hereby limiting the generality of the foregoing,
         all signs and lettering affixed or painted by the LESSEE, either inside
         or outside the leased premises). LESSEE shall deliver to the LESSOR the
         leased premises and all keys, locks thereto, and other fixtures
         connected therewith and all alterations and additions made to or upon
         the leased premises, in good condition, damage by fire or other
         casualty only excepted. In the event of the LESSEE's failure to remove
         any of LESSEE's property from the premises, LESSOR is hereby
         authorized, without liability to LESSEE for loss or damage thereto, and
         at the sole risk of LESSEE, to remove and store any of the property at
         LESSEE's expense, or to retain same under LESSOR's control or to sell
         at public or private sale, without notice any or all of the property
         not so removed and to apply the net proceeds of such sale to the
         payment of any sum due hereunder, or to destroy such property.

22.      LATE FEES:

         LESSEE agrees that because of actual damages for a late payment or a
         dishonored check are difficult to fix or ascertain, but recognizing
         that damage and injury result therefore, LESSEE agrees that if payments
         of rent and other obligations are not received in hand by LESSOR five
         (5) days after the date is due, LESSEE agrees to pay liquidated damages
         of $100.00 plus 18% per annum on the delinquent amount from the due
         date. The postmark on the payment, received plus two (2) days, shall be
         conclusive evidence of whether the payment is delinquent. However,
         LESSOR is not responsible for late deliveries by U.S. Mail. LESSEE
         agrees to pay a liquidated damage of $25.00 for each dishonored check.
         In the event that two or more of the LESSEE's checks are dishonored in
         a 12 month period, the LESSOR, in addition to other Rights, shall have
         the right to demand payment by Certified Check or Money Order.

23.      OTHER PROVISIONS:

         It is also understood and agreed that

         -     Attached Addendum, Appendices D, E, F and Exhibit G are part of
               this Agreement.

         -     Attached Exhibit A-1 and A-2 constitute build out plans for
               administrative and lab areas to be built out by LESSOR.

         -     Lessee shall have rights of first refusal on any contiguous
               space on the third floor within the building, subject to any
               prior existing rights already granted, if any.

         -     Lessor and Lessee agree that so long as the Lessee is not in
               default under the existing lease for premises on the second
               floor of the building and subject to the surrender provisions
               of the existing lease, upon surrender of the second floor
               premises and occupancy of the new leased premises by the
               Lessee, the parties shall cancel the existing lease of 4,000
               square feet on the second floor at 135 Beaver Street, Waltham,
               MA.

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IN WITNESS WHEREOF, the said parties hereunto set their hands and seals this
          day of June,  2001.

Interleukin Genetics, Inc.                  Clematis LLC

---------------------------------           --------------------------------
LESSEE                                      LESSOR
Fenel Eloi, COO-CFO                         Duffy Bros. Management Company, Inc.
                                            Manager
                                            Norman J. Duffy, President.

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                                    ADDENDUM

1.       Lessee shall not change the color or appearance of the outside of the
         leased premises.

2.       Lessee shall not post signs on or about the premises but Lessee shall
         be entitled to sign space on the premises where provided by Lessor in
         common with other tenants in the building.

3.       The parking spaces shall not be used for dead storage of vehicles or
         other merchandise or material.

4.       Lessee shall not keep or store any vehicles, containers, merchandise
         or refuse outside the leased building space.

5.       Lessee shall be responsible to dispose of Lessee's own trash and
         refuse except for normal wastebasket trash.

6.       If upon request for consent to assign or sublease and Lessor desires to
         resume possession of the premises, Lessor may refuse consent. In that
         event Lessee may then withdraw the request or elect that this lease
         shall terminate at a mutually agreed date and the parties hereby agree
         to mutually release each other from rights and obligations of this
         agreement as if the term of the agreement had expired at the mutually
         agreed date.

7.       Lessee may maintain the insurance required to be carried by Lessee
         under blanket policy of insurance insuring Lessee and other companies
         affiliated with Lessee.

8.       Lessor during the term shall maintain with a responsible insurance
         company or companies an all risk fire insurance policy with extended
         coverage insuring the property containing the premises against loss or
         damage caused by fire and other occurrence in an amount equal to the
         full replacement cost of the building.

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                                 LEASE AGREEMENT
                                   APPENDIX D

                         BUILDING RULES AND REGULATIONS

1.       Every reference herein to "Lessor's consent" means "prior written
         consent of the Lessor in each instance." No such consent shall be
         unreasonably delayed or withheld.

2.       The sidewalk, entry, passages, elevator, and stairways shall not be
         obstructed by the Lessee's and shall not be used by them for any other
         purpose than for ingress and egress to and from their respective
         premises.

3.       The floors and windows that receive or admit light into passageways, or
         into any place in said building, shall not be obstructed by any Lessee.
         The elevators, water closets, and other water apparatus shall not be
         used for any purpose other than those for which they were constructed,
         and no sweepings, rubbish, rags, ashes or unsuitable substances, shall
         be added to them.

4.       No sign advertisement, or notice shall be placed on any part of the
         outside or inside of the building except of such color, size, and
         style, and in such places upon or in the building as shall be first
         authorized by the Lessor in writing. The Lessor shall have the right to
         prohibit any sign or other advertising on the building premises by any
         Lessee which in the reasonable judgment of the Lessor tends to impair
         the reputation of the building or its desirability as a building for
         offices or for financial, professional, or other businesses, and upon
         written notice from the Lessor the Lessee shall discontinue such sign
         or other advertising. The Lessor will place in the main hall a tablet
         containing the names of the tenants and the floors where their
         respective offices are located. Any changes, alterations or additions
         to such tablet when required, will be made for a Lessee by the Lessor
         at the cost of said Lessee. No window shades, awnings, or fixtures
         shall be installed or used by a Lessee without Lessor's consent.

5.       No auction sales shall be conducted in the building without the
         Lessor's consent.

6.       No Lessee shall smoke tobacco in any of the elevators. Each Lessee
         shall within 5 days after written notification by Lessor, institute all
         reasonable measures within its powers to prevent its employees or
         business invitees from engaging in unreasonably noisy, offensive or
         disruptive activities in or around the building.

7.       The Lessee shall not at any time exceed floor capacity as set forth in
         paragraph 11 of the lease. All damage done to the building by taking in
         or out a safe or other heavy or bulky object, or during the time it is
         in or on the premises, shall be repaired at the expense of the
         responsible Lessee. Each Lessee is required to notify and arrange with
         the building superintendent when safes furniture, or like property are
         to be taken into or out of the building. No freight, furniture, or
         bulky package or matter of any description shall be carried on the
         elevators except as shall not by their size, weight or nature, damage
         the elevators and which shall be loaded and carried only with
         appropriate protective measures, and which elevating shall not inhibit
         or restrict normal pedestrian traffic.

8.       No Lessee may change any locks without the Lessor's consent.

9.       No Lessee shall use any method of heating or cooling other than that
         provided by the Lessor, without the Lessor's consent.

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10.      Each Lessee shall keep the premises in a good state of cleanliness, and
         for such purposes shall, during the continuance of the lease, make use
         of the services of the janitor of the building unless other
         arrangements have been approved by Lessor in writing, and no tenant
         shall employ any person or persons other than the janitor of the
         building for the purpose of cleaning, or of taking charge of the
         premises unless other arrangements have been approved by Lessor in
         writing. Each Lessee agrees that the Lessor shall be in no way
         responsible to any Lessee for any loss of property from the premises,
         however occurring, or for any damage done to the Lessee's furniture or
         other effects by the janitor or any of his employees, unless Lessee
         shall establish gross negligence or willful wrongdoing by such person
         or persons.

11.      Nothing shall be thrown out of the windows or doors or down the
         passages or light shafts or upon the skylights of the building or upon
         or into any heating or ventilating register or plumbing apparatus of
         the building, or be placed or left upon any outside windowsill, fire
         escape or other projection of the building.

12.      No animals shall be kept in or about the building.

13.      No Lessee will introduce or admit into the building any telephone or
         telegraph wire or any other means of external communication without the
         Lessor's consent, other than by connection to outlets provided by the
         Lessor, and the Lessor reserves the right to rescind such consent at
         any time, in which case the Lessee agrees to remove any such wire or
         means, provided, that Lessor shall not restrict Lessee's means of
         external communication in any manner which unreasonably interferes with
         the operation of Lessee's business.

14.      No machine or machinery of any kind other than a typewriter and
         standard office equipment, shall be operated on or in the building,
         without the Lessor's consent which consent shall not be unreasonably
         withheld.

15.      All complaints by a Lessee shall be made in writing to the Lessor. Each
         tenant shall give to the Lessor's building superintendent prompt
         written notice of any damage known to Lessee or defect in pipes, wires,
         appliances, or fixtures in or about the premises and of any damage to
         any part of the premises.

16.      Lessee shall not be permitted to use or keep in the building any
         kerosene, burning fluid, or other illuminating material or inflammable
         or explosive substance or materials, except as customary in office or
         computer facilities with the Lessor's consent; any such fluids kept on
         the premises to be stored in accordance with state and local fire
         regulations.

17.      No Lessee shall use or permit any room or portion thereof to be used by
         anyone, for the purpose of lodging or sleeping therein. This is not
         construed to prevent children from sleeping while at Lessee's facility
         during business hours.

18.      The Lessor reserves the right to rescind any of these rules and to make
         such other and further reasonable and uniform rules and regulations as
         in its reasonable judgment may from time to time be needful for the
         safety, care, and cleanliness of the building and property, and for the
         preservation of good order therein; such other and further rules,
         however, not be inconsistent with the proper and rightful enjoyment by
         the Lessee under the within lease of the premises.

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                                 LEASE AGREEMENT

                                   APPENDIX E

                     LEGAL DESCRIPTION OF PREMISES ON WHICH
                           LEASED PREMISES ARE LOCATED
                                135 BEAVER STREET

A certain parcel of land in Waltham, Middlesex County, Massachusetts, situated
on the southerly side of Waverley Oaks Road and the easterly side of Beaver
Street, shown as Lot B on Plan of Land in Waltham, Mass. for Shell Oil Co.,
dated November 3, 1983, by United Surveyors & Engrs., Braintree, Mass., being
more particularly described as follows:

Beginning at a point on the southerly side line of Waverley Oaks Road said point
being 195.00 feet easterly of a point of curvature;

Thence North 51 degrees 38 minutes 25 seconds East 455.22 feet to a point;
Thence South 38 degrees 21 minutes 35 seconds East 145.21 feet to a point;
Thence South 51 degrees 38 minutes 25 seconds West 61.88 feet to a point;
Thence South 38 degrees 21 minutes 35 seconds East 7.70 feet to a point;
Thence South 51 degrees 38 minutes 25 seconds West 43.70 feet to a point;
Thence North 38 degrees 21 minutes 35 seconds West 7.70 feet to a point;
Thence South 51 degrees 38 minutes 25 seconds West 218.67 feet to a point;
Thence South 38 degrees 05 minutes 10 seconds East 380.56 feet to a point;
Thence South 47 degrees 29 minutes 30 seconds West 18.44 feet to a point;
Thence by a curve to the right of 558.01 feet radius a length of 72.43 feet;
Thence South 73 degrees 15 minutes 27 seconds West 134.01 feet to a point;
Thence North 64 degrees 51 minutes 20 seconds West 144 feet to a point;
Thence by Beaver Street North 55 degrees 54 minutes 20 seconds West 292.60 feet
to a point;
Thence North 31 degrees 12 minutes 09 seconds East 145.00 feet to a point;
Thence North 23 degrees 28 minutes 09 seconds West 152.48 feet to a point of
beginning;

Containing 162,327 square feet; said parcel is part of a 10.09 acre parcel
conveyed to Grantor by Deed dated May 15, 1947 and recorded with Middlesex South
District Registry of Deeds in Book 7132, Page 196.

Together with all rights, privileges and appurtenances thereto and all buildings
and land improvements thereon; but subject to all easements, rights of way,
reservations, restrictions and encumbrances of record, to any existing
tenancies, to all zoning laws and ordinances, and to any state of facts an
accurate survey or inspection of the premises would show.

                                       13
<PAGE>

                                 LEASE AGREEMENT

                                   APPENDIX F

                           BUILDING OPERATING EXPENSES

Operating Expenses shall consist by way of example of the following items of
building costs:

    -    Labor, materials, supplies and services for all maintenance and
         cleaning of the building, its machinery and other personal property,
         and for maintenance, cleaning, snow removal and landscape care on the
         exterior of premises.

    -    General supervisory and administrative expenses and management fees,
         on site, and properly allocable to the premises.

    -    Waste disposal

    -    License, inspection and permit fees

    -    Heat, air conditioning and ventilation for the building and lighting
         and power for common areas.

    -    Janitorial and cleaning services

    -    Maintenance, repair and service contracts

    -    Security expenses including watchmen, guards and security services

    -    Insurance including fire, casualty, general liability, property
         damage, etc.

    -    Legal, accounting and professional fees applicable to the premises

    -    Reserves for capital replacement and improvements, up to 2% of the
         replacement value of capital equipment, as re-determined from time to
         time. However, expenditures for such capital replacements and
         improvements are specifically excluded.

    -    Water, sewer and general utility charges

Note:    Interest and amortization of mortgage debts of Lessor are specifically
         excluded from building operating expenses.

         Charges for services provided by parties related to Lessor shall not
         exceed the prevailing rates charged by outside parties for those goods
         and services.

                                       14
<PAGE>

                                 LEASE AGREEMENT
                                   APPENDIX G
                                CLEANING SCHEDULE

NIGHTLY  Between the hours of 5:00 p.m. and 6:00 a.m. Monday through Friday,
         Legal Holidays excepted

1.       Clean Lavatories as follows:

         (a)      Sweep and wash floors, using a disinfectant in wash water.
         (b)      Wash and polish all mirrors, powder shelves, bright work,
                  and enamel surfaces.
         (c)      Thoroughly scour, wash and disinfect all basins, bowls, and
                  urinals.
         (d)      Wash and disinfect all toilet seats, both sides.
         (e)      Wash all partitions, tile walls, towel, paper, and sanitary
                  napkin dispensers, and receptacles, as required.
         (f)      Empty and clean paper towel and sanitary disposal receptacles.
         (g)      Fill toilet tissue holders, soap dispensers and towel
                  dispensers, materials to be furnished by lessor.

2.       Empty and clean all waste receptacles, ashtrays and sand urns

3.       Wash clean and disinfect all water fountains and water coolers.

4.       Remove rubbish and trash from Lessee's premises resulting from business
         office use, but this shall not include manufacturing or product
         packaging materials, the removal of which is Tenant's responsibility.

5.       Vacuum Lessee's carpeted areas as needed.

6.       Damp mop floors in entrance foyers, elevator lobbies, and public
         corridors if applicable.

7.       Wet sponge wipe table tops in Lessee's employee lounge, including
         cleaning of any spills, if applicable.

8.       Keep sidewalks, and parking area clean and rubbish free.

WEEKLY

1.       Damp mop all uncarpeted areas.

2.       Keep lawn and landscaping properly maintained, if applicable.

MONTHLY

1.       Clean air conditioning grilles and filters as required.

ANNUALLY

1.       Wash all windows inside and out.

                                       15
<PAGE>

NOTE:

Lab areas and specialized sections to be omitted.

                                       16<PAGE>

                              EMPLOYMENT AGREEMENT

          This EMPLOYMENT AGREEMENT (this "Agreement") is entered into by and
between Fisher Scientific International, Inc., a Delaware corporation (the
"Company") and Paul M. Montrone (the "Executive"), dated as of the 31st day of
December, 2001.

          1.   TERM OF THE AGREEMENT. This Agreement shall commence as of
December 31, 2001 (the "Effective Date") and end on December 31, 2006 (the
"Initial Employment Period" and, together with any extensions thereof pursuant
to the next sentence, the "Employment Period"). As of the last day of the
Initial Employment Period and each anniversary thereof, unless either party
hereto shall have given the other party 60 days' advance notice that there shall
be no further extensions pursuant to this sentence (such notices, a "Notice of
Non-Extension"), the Employment Period shall be extended by an additional year.

          2.   POSITION AND DUTIES. During the Employment Period, the
Executive's position (including status, offices, titles and reporting
requirements), authority, duties and responsibilities shall be at least
commensurate in all material respects with those held, exercised and assigned to
the Executive on the day immediately preceding the Effective Date. The
Executive's services shall be performed at the location where the Executive was
employed immediately preceding the Effective Date or any office or location less
than 25 miles from such location. During the Employment Period, and excluding
any periods of vacation and sick leave to which the Executive is entitled, the
Executive agrees to devote reasonable attention and time during normal business
hours to the business and affairs of the Company and, to the extent necessary to
discharge the responsibilities assigned to the Executive hereunder, to use the
Executive's reasonable best efforts to perform faithfully and efficiently such
responsibilities. During the Employment Period it shall not be a violation of
this Agreement for the Executive to (A) serve on corporate, civic, charitable,
governmental or religious boards or committees, (B) to manage or participate in
activities of General Chemical Group, GenTek Inc.and Latona Associates, Inc., in
a manner consistent with his current practice, (C) deliver lectures, fulfill
speaking engagements or teach at educational institutions, (D) participate in
political activities and fundraising and (E) manage personal investments, so
long as such activities do not significantly interfere with the performance of
the Executive's responsibilities as an employee of the Company in accordance
with this Agreement. It is expressly understood and agreed that to the extent
that any such activities have been conducted by the Executive prior to the
Effective Date, the continued conduct of such activities (or the conduct of
activities similar in nature and scope thereto) subsequent to the Effective Date
shall not thereafter be deemed to interfere with the performance of the
Executive's responsibilities to the Company.

<PAGE>

          3.   COMPENSATION.

          (a)  BASE SALARY. During the Employment Period, the Executive shall
receive an annual base salary of at least $815,000 ("Annual Base Salary"),
which shall be paid in accordance with the Company's generally applicable
payroll practices and policies. During the Employment Period, the Annual Base
Salary shall be reviewed at least annually. Any increase in Annual Base Salary
shall not serve to limit or reduce any other obligation to the Executive under
this Agreement. Annual Base Salary shall not be reduced after any such increase
and the term Annual Base Salary as utilized in this Agreement shall refer to
Annual Base Salary as so increased.

          (b)  ANNUAL BONUS. In addition to Annual Base Salary, the Executive
shall be awarded, for each fiscal year ending during the Employment Period, an
annual bonus (the "Annual Bonus") in cash at least equal to $475,000 (the
"Minimum Bonus Amount"). Each such Annual Bonus shall be paid no later than the
end of the third month of the fiscal year next following the fiscal year for
which the Annual Bonus is awarded, unless the Executive shall elect to defer the
receipt of such Annual Bonus.

          (c)  INCENTIVE, SAVINGS AND RETIREMENT PLANS. During the Employment
Period, the Executive shall be entitled to participate in all incentive, savings
and retirement plans, practices, policies and programs applicable generally to
other peer executives of the Company and its affiliated companies, but in no
event shall such plans, practices, policies and programs provide the Executive
with incentive opportunities (measured with respect to both regular and special
incentive opportunities, to the extent, if any, that such distinction is
applicable), savings opportunities and retirement benefit opportunities, in each
case, less favorable, in the aggregate, than the most favorable of those
provided by the Company and its affiliated companies for the Executive under
such plans, practices, policies and programs as in effect immediately preceding
the Effective Date or if more favorable to the Executive, those provided
generally at any time after the Effective Date to other peer executives of the
Company and its affiliated companies.

          (d)  WELFARE BENEFIT PLANS. During the Employment Period, the
Executive and/or the Executive's family, as the case may be, shall be eligible
for participation in and shall receive all benefits under welfare benefit plans,
practices, policies and programs provided by the Company and its affiliated
companies (including, without limitation, medical, prescription, dental,
disability, salary continuance, employee life, group life, accidental death and
travel accident insurance plans and programs) to the extent applicable generally
to other peer executives of the Company and its affiliated companies, but in no
event shall such plans, practices, policies and programs provide the Executive
with benefits which are less favorable, in the aggregate, than the most
favorable of such plans, practices, policies and programs in effect for the
Executive

                                       2

<PAGE>

immediately preceding the Effective Date or, if more favorable to the Executive,
those provided generally at any time after the Effective Date to other peer
executives of the Company and its affiliated companies. Without limiting the
generality of the foregoing, the Company shall continue to make all required
premium payments and fulfill its other obligations under the split-dollar
insurance agreement (the "Split-Dollar Agreement") entered into by the Company
and the Executive and effective as of November 8, 1994.

          (e)  EXPENSES. During the Employment Period, the Executive shall be
entitled to receive prompt reimbursement for all reasonable expenses incurred by
the Executive in accordance with the most favorable policies, practices and
procedures of the Company and its affiliated companies in effect for the
Executive immediately preceding the Effective Date or, if more favorable to the
Executive, as in effect generally at any time thereafter with respect to other
peer executives of the Company and its affiliated companies.

          (f)  FRINGE AND OTHER BENEFITS. During the Employment Period, the
Executive shall be entitled to fringe benefits, personal perquisites, and any
other benefits in accordance with the most favorable plans, practices, programs
and policies of the Company in all respects and its affiliated companies in
effect for the Executive immediately preceding the Effective Date or, if more
favorable to the Executive, as in effect generally at any time thereafter with
affiliated companies, including, without limitation, benefits payable under the
Executive's Split-Dollar Agreement.

          (g)  OFFICE AND SUPPORT STAFF. During the Employment Period, the
Executive shall be entitled to an office or offices of a size and with
furnishings and other appointments, and to secretarial and other assistance, in
all respects equal to that provided to the Executive by the Company immediately
preceding the Effective Date or, if more favorable to the Executive, as provided
generally at any time thereafter with respect to other peer executives of the
Company and its affiliated companies.

          (h)  VACATION. During the Employment Period, the Executive shall be
entitled to paid vacation in accordance with the plans, policies, programs and
practices of the Company in all respects and its affiliated companies as in
effect for the Executive immediately preceding the Effective Date or, if more
favorable to the Executive, as in effect generally at any time thereafter with
respect to other peer executives of the Company and its affiliated companies.

          4.   TERMINATION OF EMPLOYMENT.

          (a)  DEATH OR DISABILITY. The Executive's employment shall terminate
automatically upon the Executive's death during the Employment Period. If the
Company determines in good faith that the Disability of the Executive has
occurred during the Employment Period (pursuant to the definition of Disability
set forth below), it

                                       3

<PAGE>

may give to the Executive written notice in accordance with Section 10(b) of
this Agreement of its intention to terminate the Executive's employment. In such
event, the Executive's employment with the Company shall terminate effective on
the 30th day after receipt of such notice by the Executive (the "Disability
Effective Date"), provided that, within the 30 days after such receipt, the
Executive shall not have returned to full-time performance of the Executive's
duties. For purposes of this Agreement, "Disability" shall mean the absence of
the Executive from the Executive's duties with the Company on a full-time basis
for 180 consecutive business days as a result of incapacity due to mental or
physical illness which is determined to be total and permanent by a physician
selected by the Company or its insurers and acceptable to the Executive or the
Executive's legal representative.

          (b)  CAUSE. The Company may terminate the Executive's employment
during the Employment Period for Cause. For purposes of this Agreement, "Cause"
shall mean:

               (i) the willful and continued failure of the Executive to perform
          substantially the Executive's duties with the Company or one of its
          affiliates (other than any such failure resulting from incapacity due
          to physical or mental illness), after a written demand for substantial
          performance is delivered to the Executive by the Board or the Chief
          Executive Officer of the Company which specifically identifies the
          manner in which the Board or Chief Executive Officer believes that the
          Executive has not substantially performed the Executive's duties, or

               (ii) the willful engaging by the Executive in illegal conduct or
          gross misconduct that is materially and demonstrably injurious to the
          Company.

          For purposes of this provision, no act or failure to act, on the part
          of the Executive, shall be considered "willful" unless it is done, or
          omitted to be done, by the Executive in bad faith or without
          reasonable belief that the Executive's action or omission was in the
          best interests of the Company. Any act, or failure to act, based upon
          authority given pursuant to a resolution duly adopted by the Board or
          upon the instructions of the Chief Executive Officer or a senior
          officer of the Company or based upon the advice of counsel for the
          Company shall be conclusive presumed to be done, or omitted to be
          done, by the Executive in good faith and in the best interests of the
          Company. The cessation of employment of the Executive shall not be
          deemed to be for Cause unless and until there shall have been
          delivered to the Executive a copy of a resolution duly adopted by the
          affirmative vote of not less than three-quarters of the entire
          membership of the Board at a meeting of the Board called and held for
          such purpose (after reasonable notice is provided to the Executive and
          the Executive is given an opportunity, together with counsel, to be
          heard before the Board), finding that, in the good

                                       4

<PAGE>

          faith opinion of the Board, the Executive is guilty of the conduct
          described in subparagraph (i) or (ii) above, and specifying the
          particulars thereof in detail.

          (c)  GOOD REASON. The Executive's employment may be terminated by the
Executive other than for Good Reason, or by the Executive for Good Reason at any
time within 90 days after the Executive first has actual knowledge of the
occurrence of such Good Reason. For purposes of this Agreement, "Good Reason"
shall mean:

               (i) the assignment to the Executive of any duties inconsistent in
          any respect with the Executive's position (including status, offices,
          titles and reporting requirements), authority, duties or
          responsibilities as contemplated by Section 2 of this Agreement, or
          any other action by the Company which results in a diminution in such
          position, authority, duties or responsibilities, excluding, for this
          purpose an isolated, insubstantial and inadvertent action not taken in
          bad faith and which is remedied by the Company promptly after receipt
          of notice thereof given by the Executive;

               (ii) any failure by the Company to comply with any of the
          provisions of Section 3 of this Agreement, other than an isolated,
          insubstantial and inadvertent failure not occurring in bad faith and
          which is remedied by the Company promptly after receipt of notice
          thereof given by the Executive;

               (iii) the Company's requiring the Executive to be based at any
          office or location other than as provided in Section 2 hereof or the
          Company's requiring the Executive to travel on Company business to a
          substantially greater extent than required immediately prior to the
          Effective Date;

               (iv) any purported termination by the Company of the Executive's
          employment otherwise than as expressly permitted by this Agreement;

               (v) any delivery by the Company of a Notice of Non-Extension; or

               (vi) any failure by the Company to comply with and satisfy
          Section 9 of this Agreement.

For purposes of this Section 4(c), any good faith determination of "Good Reason"
made by the Executive shall be conclusive.

          (d)  NOTICE OF TERMINATION. Any termination by the Company for Cause,
or by the Executive for Good Reason, shall be communicated by Notice of
Termination to the other party hereto given in accordance with Section 10(b) of
this Agreement. For purposes of this Agreement, a "Notice of Termination" means
a written notice which (I) indicates the specific termination provision in this
Agreement relied upon, (II) to the extent applicable, sets forth in reasonable
detail the facts and circumstances claimed to

                                       5

<PAGE>

provide a basis for termination of the Executive's employment under the
provision so indicated and (III) if the Date of Termination (as defined below)
is other than the date of receipt of such notice, specifies the termination date
(which date shall be not more than thirty days after the giving of such notice).
The failure by the Executive or the Company to set forth in the Notice of
Termination any fact or circumstance which contributes to a showing of Good
Reason or Cause shall not waive any right of the Executive or the Company,
respectively, hereunder or preclude the Executive or the Company, respectively,
from asserting such fact or circumstance in enforcing the Executive's or the
Company's rights hereunder.

          (e)  DATE OF TERMINATION. "Date of Termination" means (I) if the
Executive's employment is terminated by the Company for Cause, or by the
Executive for Good Reason, the date of receipt of the Notice of Termination or
any later date specified therein, as the case may be, (II) if the Executive's
employment is terminated by the Company other than for Cause or Disability, the
date on which the Company notifies the Executive of such termination, (III) if
the Executive's employment is terminated by the Executive other than for Good
Reason, the date on which the Executive notifies the Company of such termination
and (IV) if the Executive's employment is terminated by reason of death or
Disability, the date of death of the Executive or the Disability Effective Date,
as the case may be.

          5.   OBLIGATIONS OF THE COMPANY UPON TERMINATION.

          (a)  BY EXECUTIVE; OTHER THAN FOR CAUSE, DEATH OR DISABILITY. In
partial consideration for the confidential information and noncompetition
covenants of the Executive pursuant to Section 8 and in part as liquidated
damages in lieu of the payments and benefits to which the Executive would have
been entitled through the remainder of the Employment Period, if, during the
Employment Period, the Company shall terminate the Executive's employment other
than for Cause or Disability or the Executive shall terminate employment for
Good Reason or without Good Reason:

               (i) the Company shall pay to the Executive in a lump sum in cash
          within 30 days after the Date of Termination the aggregate of the
          following amounts:

                    A.   the sum of

                         (1) the Executive's Annual Base Salary through the Date
                         of Termination to the extent not theretofore paid,

                         (2) the product of

                                       6

<PAGE>

                    (a) The Executive's target bonus as determined under the
                    applicable Fisher compensation plan(s), and

                    (b) a fraction, the numerator of which is the number of days
                    in the current fiscal year through the Date of Termination,
                    and the denominator of which is 365 and

               (3) any compensation previously deferred by the Executive
               (together with any accrued interest or earnings thereon) and any
               accrued vacation pay, in each case to the extent not theretofore
               paid (the sum of the amounts described in clauses (1), (2), and
               (3) shall be hereinafter referred to as the "Accrued
               Obligations"); and

          B.   the amount equal to the product of

               (1) five (three in the case of termination by the Executive
               without Good Reason) and

               (2) the sum of

                    (a) the Executive's Annual Base Salary and

                    (b) The Executive's target bonus as determined under the
                    applicable Fisher compensation plan(s) and

          C.   an amount equal to the difference between (A) the aggregate
     benefit under the Company's qualified - defined benefit retirement plans
     (collectively, the "Retirement Plan") and any excess or supplemental
     defined benefit retirement plans in which the Executive participates,
     including without limitation the Company's Executive Retirement and Savings
     Plan, (collectively, the "SERP") which the Executive would have accrued
     (whether or not vested) if the Executive's employment had continued for
     five years (three years in the case of termination by the Executive without
     Good Reason) after the Date of Termination and (B) the actual vested
     benefit, - if any, of the Executive under the Retirement Plan and the SERP,
     determined as of the Date of Termination (with the foregoing amounts to be
     computed on an actuarial present value basis, based on the assumption that
     the Executive's compensation in each of the five years (three years in the
     case of termination by the Executive without Good Reason) following such
     termination would have been that required

                                       7

<PAGE>

     by Section 3(a) and Section 3(b), and using actuarial assumptions no less
     favorable to the Executive than the most favorable of those in effect for
     purposes of computing benefit entitlements under the Retirement Plan and
     the SERP at any time from the day before the Effective Date) through the
     Date of Termination;

     (ii) for five (three years in the case of termination by the Executive
without Good Reason) years after the Executive's Date of Termination, or such
longer period as may be provided by the terms of the appropriate plan, program,
practice or policy, the Company shall continue all fringe and other benefits to
the Executive and/or the Executive's family at least equal to those which would
have been provided to them in accordance with the plans, programs, practices and
policies described in Section 3(d), (f) and (g) of this Agreement if the
Executive's employment had not been terminated (including without limitation
pursuant to the Split Dollar Agreement) or, if more favorable to the Executive,
as in effect generally at any time thereafter with respect to other peer
executives of the Company and its affiliated companies and their families,
provided, however, that if the Executive becomes reemployed with another
employer and is eligible to receive medical or other welfare benefits under
another employer-provided plan, the medical and other welfare benefits described
herein shall be secondary to those provided under such other plan during such
applicable period of eligibility, and for purposes of determining eligibility
(but not the time of commencement of benefits) of the Executive for retiree
benefits pursuant to such plans, practices, programs and policies, the Executive
shall be considered to have remained employed until five years (three years in
the case of termination by the Executive without Good Reason) after the Date of
Termination and to have retired on the last day of such period;

     (iii) the Company shall, at its sole expense as incurred, provide the
Executive with outplacement services the scope and provider of which shall be
selected by the Executive in the Executive's sole discretion (but the total cost
thereof shall not exceed $50,000); and

     (iv) for a period of five years following the Executive's termination, to
the extent not theretofore paid or provided, the Company shall timely pay or
provide to the Executive any other amounts or benefits required to be paid or
provided or which the Executive is eligible to receive under any plan, program,
policy or practice or contract or agreement of the Company and its affiliated
companies (such other amounts and benefits shall be hereinafter referred to as
the "Other Benefits").

     (b)  DEATH. If the Executive's employment is terminated by reason of the
Executive's death during the Employment Period, this Agreement shall terminate
without

                                       8

<PAGE>

further obligations to the Executive's legal representatives under this
Agreement, other than for payment of Accrued Obligations and the timely payment
or provision of Other Benefits. Accrued Obligations shall be paid to the
Executive's estate or beneficiary, as applicable, in a lump sum in cash within
30 days of the Date of Termination. With respect to the provision of Other
Benefits, the term Other Benefits as utilized in this Section 5(b) shall
include, without limitation, and the Executive's estate and/or beneficiaries
shall be entitled to receive, benefits at least equal to the most favorable
benefits provided by the Company and affiliated companies to the estates and
beneficiaries and peer executives of the Company and such affiliated companies
under such plans, programs, practices and policies relating to death benefits,
if any, as in effect with respect to other peer executives and their
beneficiaries at any time during the 120-day period immediately preceding the
Effective Date or, if more favorable to the Executive's estate and/or the
Executive's beneficiaries, as in effect on the date of the Executive's death
with respect to other peer executives of the Company and its affiliated
companies and their beneficiaries.

     (c)  DISABILITY. If the Executive's employment is terminated by reason of
the Executive's Disability during the Employment Period, this Agreement shall
terminate without further obligations to the Executive, other than for payment
of Accrued Obligations and the timely payment or provision of Other Benefits.
Accrued Obligations shall be paid to the Executive in a lump sum in cash within
30 days of the Date of Termination. With respect to the provision of Other
Benefits, the term Other Benefits as utilized in this Section 5(c) shall
include, and the Executive shall be entitled after the Disability Effective Date
to receive, disability and other benefits at least equal to the most favorable
of those generally provided by the Company and its affiliated companies to
disabled executives and/or their families in accordance with such plans,
programs, practices and policies relating to disability, if any, as in effect
generally with respect to other peer executives and their families at any time
during the 120-day period immediately preceding the Effective Date or, if more
favorable to the Executive and/or the Executive's family, as in effect at any
time thereafter generally with respect to other peer executives of the Company
and its affiliated companies and their families.

     (d)  CAUSE. If the Executive's employment shall be terminated for Cause
during the Employment Period, this Agreement shall terminate without further
obligations to the Executive other than the obligation to pay to the Executive
(X) the Annual Base Salary through the Date of Termination, (Y) the amount of
any compensation previously deferred by the Executive, and (Z) Other Benefits,
in each case to the extent theretofore unpaid. In such case, all Accrued
Obligations shall be paid to the Executive in a lump sum in cash within 30 days
of the Date of Termination

     6.   NON-EXCLUSIVITY OF RIGHTS. Nothing in this Agreement shall prevent or
limit the Executive's continuing or future participation in any plan, program,
policy or practice provided by the Company or any of its affiliated companies
and for which the

                                       9

<PAGE>

Executive may qualify, nor, subject to Section 10(f), shall anything herein
limit or otherwise affect such rights as the Executive may have under any
contract or agreement with the Company or any of its affiliated companies.
Amounts which are vested benefits or which the Executive is otherwise entitled
to receive under any plan, policy, practice or program of or any contract or
agreement with the Company or any of its affiliated companies at or subsequent
to the Date of Termination shall be payable in accordance with such plan,
policy, practice or program or contract or agreement except as explicitly
modified by this Agreement.

     7.   FULL SETTLEMENT; LEGAL FEES. The Company's obligation to make the
payments provided for in this Agreement and otherwise to perform its obligations
hereunder shall not be affected by any set-off, counterclaim, recoupment,
defense or other claim, right or action which the Company may have against the
Executive or others. In no event shall the Executive be obligated to seek other
employment or take any other action by way of mitigation of the amounts payable
to the Executive under any of the provisions of this Agreement and except as
specifically provided in Section 5(a)(ii), such amounts shall not be reduced
whether or not the Executive obtains other employment. The Company agrees to pay
promptly as incurred, to the full extent permitted by law, all legal fees and
expenses which the Executive may reasonably incur as a result of any contest
(regardless of the outcome thereof) by the Company, the Executive or others of
the validity or enforceability of, or liability or entitlement under, any
provision of this Agreement or any guarantee of performance thereof (whether
such contest is between the Company and the Executive or between either of them
and any third party, and including as a result of any contest by the Executive
about the amount of any payment pursuant to this Agreement), plus in each case
interest on any delayed payment at the applicable Federal rate ("Applicable
Federal Rate") provided for in Section 7872(f)(2)(A) of the Internal Revenue
Code of 1986, as amended (the "Code").

     8.   CONFIDENTIAL INFORMATION; NONCOMPETITION.

     (a)  CONFIDENTIAL INFORMATION. The Executive shall hold in a fiduciary
capacity for the benefit of the Company all secret, proprietary or confidential
information, knowledge or data relating to the Company or any of its affiliated
companies, and their respective businesses, which shall have been obtained by
the Executive during the Executive's employment by the Company or any of its
affiliated companies. During the period the Executive is employed with the
Company, and for a period of 24 months after termination of the Executive's
employment with the Company, the Executive shall not, without the prior written
consent of the Company or as may otherwise be required by law or legal process,
communication or divulge any such information, knowledge or data to anyone other
than the Company and those designated by it. The restrictions set forth in this
Section 8 will not apply to information that is generally known to the public or
in the trade, unless such knowledge results from an unauthorized disclosure by
the Executive or representatives of the Executive in violation of this
Agreement. This exception will not

                                       10

<PAGE>

affect the application of any other provisions of this Agreement to such
information in accordance with the terms of such provision. All documents and
tangible things embodying or containing confidential information are the
Company's exclusive property. The Executive will protect the confidentiality of
their content and will return all copies, facsimiles and specimens of them and
any other form of confidential information in the Executive's possession,
custody or control to the Company before leaving the employment with the
Company.

     (b)  NONCOMPETITON. In consideration of the benefits described in Section 5
and the Put Right set forth in Section 11, during the Executive's employment
with the Company, and for a period of 36 months thereafter, the Executive shall
not, directly or indirectly, engage, participate or invest in or be employed by
any business which is engaged in the scientific and clinical laboratory research
distribution business in the United States. The foregoing restriction shall
apply regardless of the capacity in which the Executive engages or engaged,
participates or participated, or invests or invested in or is or was employed by
a given business, whether as owner, partner, shareholder, consultant, agent,
employee, co-venturer or otherwise. The provisions of this Section 8(b) shall
not prevent the Executive from acquiring or holding publicly traded stock or
other publicly traded securities of a business, so long as the Executive's
ownership does not exceed 2 percent of the outstanding securities of such
company of the same class as those held by the Executive or from engaging in any
activity or having an ownership interest in any business that is reviewed by the
Board of Directors. The Executive understands that the restrictions set out in
this Section 8(b) are intended to protect the Company's interest in its secret,
proprietary or confidential information and established customer relationships
and goodwill, and agrees that such restrictions are reasonable and appropriate
for this purpose.

     (c)  INJUNCTIVE RELIEF. The Executive agrees that it would be difficult to
measure any damages caused to the Company that might result from any breach by
the Executive of the promises set forth in this Agreement, and that in any event
money damages would be an inadequate remedy for any such breach. Accordingly,
the Executive agrees that in the case of breach, or proposed breach, of any
portion of this Agreement, the Company shall be entitled, in addition to all
other remedies that it may have, to an injunction or other appropriate equitable
relief to restrain any such breach without showing or proving any actual damage
to the Company. However, in no event shall an asserted violation of the
provisions of this Section 8 constitute a basis for deferring or withholding any
amounts otherwise payable to the Executive under this Agreement.

     9.   SUCCESSORS. This Agreement is personal to the Executive and without he
prior written consent of the Company shall not be assignable by the Executive
otherwise than by will or the laws of descent and distribution. This Agreement
shall inure to the benefit of and be enforceable by the Executive's legal
representatives. This Agreement

                                       11

<PAGE>

shall inure to the benefit of and be binding upon the Company and its successors
and assigns. The Company will require any successor (whether direct or indirect,
by purchase, merger, consolidation or otherwise) to all or substantially all of
the business and/or assets of the Company to assume expressly and agree to
perform this Agreement in the same manner and to the same extent that the
Company would be required to perform it if no such succession had taken place.
As used in this Agreement, "Company" shall mean the Company as hereinbefore
defined and any successor to its business and/or assets as aforesaid which
assumes and agrees to perform this Agreement by operation of law, or otherwise.

     10.  MISCELLANEOUS.

     (a)  GOVERNING LAW. This Agreement shall be governed by and construed in
accordance with the laws of the State of Delaware, without reference to
principles of conflict of laws. The captions of this Agreement are not part of
the provisions hereof and shall have no force or effect. This Agreement may not
be amended or modified otherwise than by a written agreement executed by the
parties hereto or their respective successors and legal representatives.

     (b)  NOTICES. All notices and other communications hereunder shall be in
writing and shall be given by hand delivery to the other party or by registered
or certified mail, return receipt requested, postage prepaid, addressed as
follows:

          IF TO THE EXECUTIVE:

          Paul M. Montrone
          Great Hill
          Hampton Falls, NH 03844

          IF TO THE COMPANY:

          Attention:  General Counsel
          Fisher Scientific International Inc.
          Liberty Lane
          Hampton, NH 03842

Or to such other address as either party shall have furnished to the other in
writing in accordance herewith. Notice and communications shall be effective
when actually received by the addressee.

     (c)  SEVERABILITY. The invalidity or uneforceability of any provision of
this Agreement shall not affect the validity or enforceability of any other
provision of this Agreement.

                                       12

<PAGE>

     (d)  WITHHOLDING. The Company may withhold from any amounts payable under
this Agreement such Federal, state, local or foreign taxes as shall be required
to be withheld pursuant to any applicable law or regulation.

     (e)  WAIVER. The Executive's or the Company's failure to insist upon strict
compliance with any provision hereof or any other provision of this Agreement or
the failure to assert any right the Executive or the Company may have hereunder,
including, without limitation, the right of the Executive to terminate
employment for Good Reason, shall not be deemed to be a waiver of such provision
or right or any other provision or right of this Agreement.

     (f)  ENTIRE AGREEMENT. From and after the Effective Date this Agreement
shall supersede any other employment agreement between the parties with respect
to the subject matter hereof. For the avoidance of doubt, this Agreement shall
not supersede the Split Dollar Agreement, nor shall it amend the Split Dollar
Agreement except to the extent specifically provided herein, nor shall it amend,
modify or alter in any way any existing agreement between the Company and the
Executive regarding any equity interest in the Company, regardless of form.

     11.  PUT/CALL RIGHT.

     (a)  EXECUTIVE'S PUT. In partial consideration of the Executive's
noncompetition covenant pursuant to Section 8(b), at any time following the
Effective Date, the Executive and/or any Permitted Transferee (as defined below)
shall have the right (the "Put Right"), exercisable by delivery of a written
notice (the "Put Notice") to the Company, to require the Company to purchase
all, but not less than all, of the 51,667 Executive Performance Options (the
"Put Options") granted to the Executive pursuant to the Fisher Scientific
International Inc. 1998 Equity and Incentive Plan (the "1998 Option Plan"), for
an aggregate purchase price (the "Put Price") of $5,000,000 in cash, subject to
the provisions of this Section 11. Following receipt of the Put Notice, the
Company shall be required to pay the Put Price to the Executive or the Permitted
Transferee, as applicable, upon the second business day following the first
anniversary of the date the Put Notice is received by the Company; PROVIDED,
that if on such second business day, the Executive is a "covered employee" whose
compensation is subject to the limitation on deductibility imposed by Section
162(m) of the Code, such payment shall be delayed until the first date on which
the Executive is no longer such a "covered employee." For purpose of this
Section 11, "Permitted Transferee" shall mean any heir, executor, administrator,
testamentary trustee, legatee or beneficiary of the Executive and any party who
is a legitimate transferee of the Put Options in accordance with the instruments
governing their transfer. The Company shall pay the Executive interest on the
$5,000,000 cash payment due to the Executive following exercise of the Put Right
at a rate equal to the prime rate published by The Chase Manhattan Bank on the
business day nearest to the date on which the Put Right is exercised, compounded
daily. Such interest

                                       13

<PAGE>

shall accrue from the date of exercise until the date the $5,000,000 payment is
made to the Executive, and shall be paid to the Executive concurrently with such
$5,000,000 payment.

     (b)  COMPANY'S CALL RIGHT. Upon termination of the Executive's employment
with the Company for any reason (a "Call Event"), the Company shall have the
right (the "Call Right"), exercisable by delivery of a written notice (the "Call
Notice") to the Executive and any Permitted Transferees who then own any Put
Options within a period of 180 days after the date of occurrence of the Call
Event (subject to extension for up to 12 months in the event the Company is
legally prohibited or contractually prohibited, by virtue of its debt or other
obligations, from exercising its Call Rights) (the "Call Notice Period"), to
require the Executive and any such Permitted Transferees to sell all, but not
less than all, of the Put Options owned by the Executive and such Permitted
Transferees on the date of occurrence of the Call Event at an aggregate price
equal to the Put Price, allocated among the Executive and such Permitted
Transferees (if any) in the same proportions as their ownership of the Put
Options. Upon receipt of such notice the Executive and any such Permitted
Transferees shall sell such Put Options, subject to the terms hereof.

     (c)  CLOSING. The closing of the acquisition by the Company of Put Options
following exercise of the Put Right or the Call Right shall take place at the
principal office of the Company on the tenth business day after the date of the
Put Notice or the Call Notice. At such closing, the Company shall pay the Put
Price by wire transfer to the account or accounts designated by the Executive or
Permitted Transferee, as applicable, in writing to Company or, if the Executive
or Permitted Transferee, as applicable, fails to designate any such account, the
Company shall deliver a certified check or checks in the amount of the
applicable Put Price to the Executive or such Permitted Transferee, as
applicable, in each case against delivery of duly endorsed certificates
representing such Put Options (to he extent issued in certificated form).

     IN WITNESS WHEREOF, the Executive has hereunto set the Executive's hand
and, pursuant to the authorization from its Board of Directors, the Company has
caused this Agreement to be executed in its name on its behalf, all as of the
day and year first above written.

                                  /s/ Paul M. Montrone
                                  ----------------------------------------
                                  PAUL M. MONTRONE

                                  FISHER SCIENTIFIC INTERNATIONAL, INC.

                                  /s/ Kevin P. Clark
                                  -------------------------------------
                                  By: KEVIN P. CLARK

                                       14

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