Document:

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                                                                    Exhibit 10.1

                          SELLING SHAREHOLDER AGREEMENT

         This Selling Shareholder Agreement (the "Agreement"), dated as of May
13, 2005, is by and among the shareholders identified on Schedule I ("Selling
Shareholders") including Betty B. Kerns, an Oklahoma resident ("BBK"), and
Southwest Bancorp, Inc., an Oklahoma corporation (the "Company").

                                    RECITALS

         A. The Selling Shareholders desire to sell shares described on Schedule
I (the "Subject Shares"), and the Company desires to purchase such shares as
soon as is practicable.

         B. BBK and Company desire that all of BBK's outstanding options granted
under the Company's stock option plans (the "BBK Options") be cancelled.

                               SELLING AGREEMENTS

         NOW, THEREFORE, in consideration of the foregoing premises, and for
other good and valuable consideration, the receipt and sufficiency of which is
hereby acknowledged, the parties to the Agreement agree as follows:

         1.   Actions to Effect the Sales. The Company, BBK, and each of the
Selling Shareholders agree to proceed in good faith to effect a sale of the
Subject Shares as provided in this Agreement.

         2.  Terms

              (a)   The Subject Shares shall be the shares specified on
                    Schedule I.

              (b)   The price per share for each subject share shall be $18.00.

              (c)   The total price for all shares shall be $12,416,328.

              (d)   The consideration for the cancellation of all options equals
                    $18.00 per share less the exercise price per share for
                    options that are exercisable as of May 13, 2005, and totals
                    $60,654.01.

              (e)   The total price for all shares and consideration for the
                    cancellation of all BBK Options is $12,476.982.01 (the
                    "Total Price").

         3.   Closing and Payment.

                    (a) Payment of the Total Price and delivery of certificates
         for the Subject Shares shall be made at the offices of the Company at
         4:00 p.m., Stillwater, Oklahoma time, on Monday May 16, 2005, or the
         first business day thereafter when the conditions to closing set forth
         below are satisfied (the "Closing Date"), provided that the shares held
         by the Berry Charitable Remainder Trust may be sold at a separate,
         later closing if necessary, to be held on the first business day that
         such conditions are satisfied as to such shares. Such total payment
         shall be made to an account designated by the Selling Shareholders, as
         appropriate, by wire transfer or certified or bank cashier's check, in
         same day funds, in the amount of the Purchase Price therefor, against
         delivery by or on behalf of the Selling Shareholders to the Company.

                    (b)  The purchase of the Subject Shares is contingent upon:

                         (i)    Delivery of certificates for shares with
                                properly executed stock powers;

                         (ii)   The approval of such transaction by the Board of
                                Directors of the Company.

                    (c)  All BBK options shall be deemed cancelled, null and
         void upon payment of the consideration therefor.

         4.   Expenses. Each party will pay the fees and expenses of their legal
              counsel, accountants, and advisers.

         5.   Termination. This Agreement may be terminated as provided below:

                    (a)  By mutual consent of the Company, BBK, and the Selling
         Shareholders, evidenced by their written agreement;

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                    (b)  By the Company or the Selling Shareholders if the
         Purchase is not effected on or before May 21, 2005.

         6.   Lockup Period.

                    (a)  It is the intention that the Selling Shareholders will
         sell under this Agreement, all of the shares that they own of record or
         beneficially. However, if any Selling Shareholder inadvertently or
         otherwise does not sell all such shares of Common Stock hereunder or
         acquires shares of Common Stock after the date of this Agreement, it
         shall be subject to the following Lockup provisions.

                         (i)    During the Lockup Period, as defined below, none
                                of the Selling Shareholders shall, directly or
                                indirectly, offer for sale, sell or agree to
                                sell or otherwise dispose of any shares of
                                Common Stock, or any securities convertible
                                into, exercisable or exchangeable for, or that
                                are the economic or voting equivalent of, any
                                such shares of Common Stock, or announce the
                                offering of, or register with the Securities and
                                Exchange Commission any shares of Common Stock
                                or any such other securities without the prior
                                written consent of the Company.

                         (ii)   Any purported transfer of any Subject Shares in
                                violation of the Agreement (an "Unauthorized
                                Transfer") will be null and void. The Company
                                will not be required to register, recognize or
                                give effect to any Unauthorized Transfer and the
                                purported transferee of any Common Stock or
                                other securities described in Section 7(a)
                                hereof or any interest therein pursuant to an
                                Unauthorized Transfer will not acquire any
                                rights in any such Subject Shares during the
                                term of this Agreement.

                         (iii)  The Lockup Period is the period beginning the
                                date of this Agreement and ending the earlier of
                                (i) the date which is 180 days after the date of
                                this Agreement or (ii) the termination of this
                                Agreement In the event that this Agreement is
                                signed by some, but not all, of the
                                Shareholders, this Agreement shall be effective
                                as to such signing Shareholders.

                    (b)  If requested by the Company, each Selling Shareholder
         and BBK also shall promptly enter into and be subject to a lockup
         agreement with the underwriters for the Offering in the form entered by
         officers and directors of the Company.

         7.   Representations. Each Selling Shareholder hereby represents to and
agrees with the Company that:

                    (a)  The Subject Shares listed on Schedule I comprise all of
         the shares owned of record or beneficially by the Selling Shareholder.

                    (b)  Such Selling Shareholder has full legal right, power,
         and authority to execute this Agreement, which is a valid and legally
         binding agreement enforceable against such Selling Shareholder in
         accordance with its terms except as the enforcement thereof may be
         limited by general principles of equity and by bankruptcy or other laws
         relating to or affecting creditors' rights generally and except insofar
         as indemnification and contribution provisions may be limited by
         applicable law or equitable principles.

                    (c)  Such Selling Shareholder has, and on the Closing Date
         will have, good and marketable title to the Subject Shares to be sold
         by such Selling Shareholder and full right, power and authority to
         sell, assign, transfer and deliver such Shares pursuant to this
         Agreement, free and clear of all voting trust arrangements, security
         interests, liens, mortgages, pledges, encumbrances, taxes,
         restrictions, preemptive rights, claims, equities and other defects;
         and upon delivery of and payment for such shares, good and marketable
         title thereto, free and clear of all voting trust arrangements,
         security interests, liens, mortgages, pledges, encumbrances, taxes,
         restrictions, claims, equities and defects, will pass to the Company,
         provided that certain tax liens or interests may exist on such shares.
         Such Selling Shareholder represents and warrants that it shall maintain
         sufficient proceeds of this sale to satisfy any and all such liens or
         interests, and indemnifies the Company with respect to any loss,
         damage, liability, or expense, including reasonable legal fees and
         expenses, with respect to such liens or interests.

                                       2
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                    (d) Neither the execution, delivery or performance by such
         Selling Shareholder of this Agreement, nor the consummation of the
         transactions contemplated hereby or thereby, (i) will require the
         consent, approval, authorization, registration or qualification of or
         with any governmental authority, except such as have been obtained, or
         (ii) will conflict with or result in a breach or violation by such
         Selling Shareholder of any of the terms or provisions of, or constitute
         a default by such Selling Shareholder under, any voting trust
         agreement, shareholders agreement, mortgage, deed of trust, trust
         (constructive or other), security agreement, loan agreement, lease,
         franchise, license, indenture, permit or other agreement or instrument
         to which such Selling Shareholder is a party or by which such Selling
         Shareholder or any of its properties is bound or any statute, or any
         judgment, decree, order, rule or regulation of any court or
         governmental agency or body applicable to such Selling Shareholder.

                    (e) Such Selling Shareholder has not, since the filing of
         the date of the first public announcement of the Offering, (i) sold,
         bid for, purchased, attempted to induce any person to purchase, or paid
         anyone any consideration for soliciting purchases of, Common Stock (or
         securities convertible into or exchangeable for Common Stock) or (ii)
         paid or agreed to pay any person any consideration for soliciting
         another to purchase any securities of the Company.

                    (f) The representations and warranties made by a Selling
         Shareholder in this Section (with respect to such Selling Shareholder)
         shall survive the consummation of the transactions contemplated by this
         Agreement.

         8.   Notices. All notices and other communications hereunder shall be
in writing and shall be deemed to have been duly given if delivered by hand,
mailed by registered or certified mail, return receipt requested, or transmitted
by any standard form of telecommunication and confirmed. Notices to a Selling
Shareholder shall be sent to Betty Berry Kerns, 4111 Dear Crossing Drive,
Stillwater, Oklahoma 74074 (with a copy to Ellis & Drummond, LLC , 711 South
Husband, Stillwater, Oklahoma 74074, Attention: Hal Wm. Ellis, Esq.; notices to
the Company shall be sent to 608 South Main Street, Stillwater, Oklahoma 74074,
Attention: Rick J. Green (with a copies to James I. Lundy III, Esq., 1700
Pennsylvania Avenue, NW, Suite 400, Washington, D.C. 20006 and Kennedy & Baris,
L.L.P., 4701 Sangamore Road, Bethesda, Maryland 20816, Attention: Noel Gruber,
Esq.).

         Notices or communications so given shall be deemed to have been given
on the date so delivered or mailed. Any address set forth above may be changed
by notice pursuant to this Section 8.

         Board Matters.

                    (a) BBK hereby resigns from the Boards of Directors of the
         Company and all of its subsidiaries, and represents that such
         resignation was not due to any disagreement with the Company or any
         matter relating to the Company's operations, policies, or practices.

                    (b) BBK hereby waives notice of the special meetings of the
         Boards of Directors of the Company and Stillwater National Bank and
         Trust Company held on May 13, 2005.

         9.   Miscellaneous.

                    (a) This Agreement is for the express benefit of the
         Company, and the Selling Shareholders. The obligations and
         authorization of the Selling Shareholders hereunder are irrevocable and
         shall not be terminated by any act of a Selling Shareholder or by
         operation of law, whether by the death, disability, incapacity or
         liquidation of a Selling Shareholder or by the occurrence of any other
         event or events (including without limitation the termination of any
         trust or estate for which a Selling Shareholder is acting as a
         fiduciary or fiduciaries), and if after the execution hereof a Selling
         Shareholder shall die or become disabled or incapacitated or is
         liquidated, or if any other event or events shall occur before the
         delivery of such Selling Shareholder's Subject Shares hereunder to the
         Company, such Subject Shares shall be delivered to the Company in
         accordance with the terms and conditions of this Agreement, as if such
         event had not occurred, regardless of whether or not the Company shall
         have received notice of such event.

                    (b) The Company shall be entitled to all legal and equitable
         remedies in enforcing this Agreement, including without limitation, an
         injunction against any sale in contravention of this Agreement.

                    (c) Any provision of this Agreement which may be determined
         by a final judgment to be prohibited or unenforceable shall be
         ineffective to the extent of such prohibition or unenforceability
         without invalidating the remaining provisions hereof. It is expressly
         understood, however, that the parties hereto intend each and every
         provision of this Agreement to be valid and enforceable and, to the
         extent permitted by law, thereby waive all rights to object to any
         provision of this Agreement.

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                    (d) This Agreement shall be binding upon and inure solely to
         the benefit of the parties hereto and their respective representatives,
         heirs, successors and assigns. Except as expressly permitted hereunder,
         no party may assign any of its rights or obligations under this
         Agreement without the written consent of the other parties. This
         Agreement shall be construed in accordance with and governed by the
         laws of the State of Oklahoma.

                    (e) This Agreement may be modified or terminated only by a
         writing signed by all of the parties hereto, and no waiver hereunder
         shall be effective unless in a writing signed by the party or parties
         to be charged.

                    (f) This Agreement may be executed by any one or more of the
         parties hereto in any number of counterparts, each of which shall be
         deemed to be an original, but all such counterparts shall together
         constitute one and the same instrument.

         [The remainder of this page has been left blank intentionally.]

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         IN WITNESS WHEREOF, the parties hereto have been duly executed this
Custody Agreement as of the day and year first above written.

                               The Selling Shareholder listed on Schedule I:

                               Joyce C. Berry Revocable Trust
                               By: /s/ Betty Berry Kerns
                                   ----------------------------------------
                                   Name: Betty Berry Kerns

                               By: /s/Mary Randle Parrish
                                   ----------------------------------------
                                   Name: Mary Randle Parrish

                               Joe N. Berry Trust

                               By: /s/Betty Berry Kerns
                                   ----------------------------------------
                                   Name: Betty Berry Kerns

                               By: /s/Mary Randle Parrish
                                   ----------------------------------------
                                   Name: Mary Randle Parrish

                               BKP, L.L.C.

                               By: /s/Betty Berry Kerns
                                   ----------------------------------------
                                   Name: Betty Berry Kerns

                               By: /s/Mary Randle Parrish
                                   ----------------------------------------
                                   Name: Mary Randle Parrish

                               Berry Charitable Remainder Trust

                               By: /s/Betty Berry Kerns
                                   ----------------------------------------
                                   Name: Betty Berry Kerns

                               Betty B. Kerns

                                    /s/Betty Berry Kerns
                                   ----------------------------------------

                               Southwest Bancorp, Inc.

                               By: /s/ Rick J. Green
                                   ----------------------------------------
                                   Rick J. Green
                                   Chief Executive Officer

Witness:  /s/ Hal Ellis  5/13/05

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                                   SCHEDULE I.

                                             Subject
                                              Shares      Certificate Number(s)
                                             --------     ---------------------
Joyce C. Berry Revocable Trust               562,702
Joe M. Berry Trust                                  (1)
BKP, L.L.C                                   100,000
Berry Charitable Remainder Trust              17,840
Betty Berry Kerns: Individually                9,254
                                             -------
Total                                        689,796
                                             =======

(1) Included in Joyce C. Berry Revocable Trust<PAGE>

                                                                    EXHIBIT 10.1

              EXCLUSIVE PRIVATE LABELING AND DISTRIBUTION AGREEMENT

         THIS EXCLUSIVE PRIVATE LABELING AND DISTRIBUTION AGREEMENT (this
"AGREEMENT") is entered into as of this 5th day of May, 2005 by and between
BIOLIFE SOLUTIONS, INC., a Delaware corporation with its principal offices
located at 171 Front Street, Owego, New York 13827 ("SUPPLIER"), and VWR
INTERNATIONAL, INC., a Delaware corporation with its principal offices located
at 1310 Goshen Parkway, West Chester, Pennsylvania 19380 ("VWR").

1.       PRODUCTS

                  The products covered by this Agreement are those set forth in
                  the attached Addendum A, and all modifications, improvements
                  and developments pertaining thereto (collectively, the
                  "PRODUCTS"). Addendum A shall be amended only in an written
                  amendment signed by both parties hereto. Products may also be
                  added to this Agreement upon mutual agreement.

2.       GRANT OF EXCLUSIVE DISTRIBUTORSHIP

         (a)      Except as set forth in Section 2(b) below, SUPPLIER hereby
                  grants to VWR, and VWR hereby accepts, on the terms and
                  conditions stated in this Agreement, the sole and exclusive
                  right during the term of this Agreement to promote, market,
                  sell and distribute the Products for non-clinical use
                  throughout the world (the "Territory").

         (b)      (i) The right granted pursuant to Section 2(a) above, shall
                  not include the right to combine any Product with another
                  manufactured product which, when combined with the Product,
                  changes or enhances the function of the manufactured product
                  or the manner in which it is used ("Combined Product"), and
                  promote, market, sell and distribute the same as one product
                  or as a kit. VWR reserves the right to bundle any Product with
                  another manufactured product for marketing and sales purposes.

                  (ii) Notwithstanding anything to the contrary contained in
                  Section 2(a) above, SUPPLIER shall retain the right to
                  directly, but not through non-affiliated third parties,
                  promote, market, sell and distribute the Products for
                  non-clinical throughout the Territory under its own label.

         (c)      SUPPLIER specifically reserves all rights to market, sell and
                  distribute, directly and indirectly, (i) the Products for
                  clinical use, and (ii) for non-clinical use when the Product
                  is to be used as part of a Combined Product; provided,
                  however, that should SUPPLIER wish to grant to any
                  non-affiliated third party the right to market, sell and
                  distribute the Products for clinical use, SUPPLIER shall give
                  VWR written notice thereof and for a period of sixty (60) days
                  from the date of such notice VWR shall have a right of first
                  negotiation with SUPPLIER with respect thereto.

                                  Page 1 of 16
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         (d)      The exclusive right granted to VWR pursuant to Section 2(a)
                  hereof, may become non-exclusive, at the option of SUPPLIER,
                  in the event sales of the Products to VWR by SUPPLIER do not
                  equal at least the following dollar amounts during the term of
                  this Agreement:

                           First Year                         $375,000
                           Second Year                        $1,000,000
                           Third Year                         $1,500,000
                           Fourth Year                        $2,000,000
                           Fifth Year and thereafter          $2,500,000

                  In the event VWR's right hereunder becomes non-exclusive
                  pursuant to this Section 2(d), then, in addition to the rights
                  reserved to SUPPLIER under Section 2(b)(ii) above, SUPPLIER
                  may promote, market, sell and distribute the Products for
                  non-clinical use, under any brand name, throughout the
                  Territory, through non-affiliated third parties.

3.       GRANT OF LIMITED LICENSE, LABELING AND PACKAGING OF THE PRODUCTS

         (a)      Subject to the terms and conditions set forth in this
                  Agreement, VWR grants to SUPPLIER, and SUPPLIER hereby
                  accepts, a non-assignable license, without the right to
                  sublicense, to use VWR's manuals, logos, copyrighted
                  information, brand names, trademarks and trade names (the "VWR
                  Marks") solely for the purpose of providing the packaging,
                  labeling and branding of the Products, as provided in Section
                  3(b).

         (b)      SUPPLIER shall provide the Products to VWR with certain
                  packaging, labels and branding containing the VWR Marks
                  (hereinafter, the "VWR Labels"). VWR will provide to SUPPLIER
                  VWR Mark artwork for printing on VWR Labels. SUPPLIER shall
                  determine all other aspects of the VWR Labels and their
                  contents including without limitation the format and size, the
                  instructions and warnings and all necessary legal and
                  regulatory requirements (the "Label Specifications"). If VWR
                  revises the VWR Marks, SUPPLIER shall revise the VWR Labels
                  for such new VWR Marks within ninety (90) days of receipt of
                  such changes from the VWR. Supplier shall advise VWR, in
                  advance, of any increase in cost as a result of any such
                  changes to the VWR Marks directed by VWR.

         (c)      All VWR labels shall disclose that the Product is proprietary
                  to SUPPLIER and manufactured by SUPPLIER for VWR.

         (d)      The final VWR Mark format, but not the content, of the VWR
                  Labels shall be subject to VWR's prior written approval. For
                  this purpose, SUPPLIER shall provide VWR with layout, design,
                  black line sketches, finished art and sample of color proofs
                  in advance of printing and shall supply from the first print
                  run and each subsequent print run samples for VWR's written
                  approval. VWR shall indicate approval or lack thereof within
                  fifteen (15) days of its receipt of such materials. VWR shall
                  indicate the reasons for disapprovals and the changes needed
                  to obtain approval. SUPPLIER shall ensure that each copy
                  thereafter printed shall conform in all respects to what has
                  been approved by VWR and shall not ship or deliver copies of
                  the Labels which do not so conform. SUPPLIER will not proceed
                  with label implementation of any change without written final
                  approval of each label.

                                  Page 2 of 16
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4.       TERM AND RENEWAL

         The initial term of this Agreement shall begin on the date set forth on
         the signature page of this Agreement and shall continue for a period of
         five (5) years and, unless earlier terminated as set forth in Section
         13 or by either party at the expiration of the then current term upon
         not less than ninety (90) days' prior notice, shall thereafter renew
         automatically for additional and successive terms of one (1) year each.

5.       PRICE

         (a)      SUPPLIER represents that the prices, discounts, rebates,
                  payment terms and other terms and conditions (collectively,
                  the "Commercial Terms") contained in this Agreement are the
                  optimum offered by SUPPLIER to any customer with a comparable
                  purchase pattern and annual dollar volume. In the event any
                  other similarly situated non-clinical customer is given better
                  Commercial Terms, SUPPLIER agrees to and shall automatically
                  extend the same Commercial Terms to VWR retroactive to the
                  date on which such more favorable Commercial Terms were first
                  offered.

         (b)      SUPPLIER shall maintain accurate records of all information
                  necessary for VWR to verify SUPPLIER's compliance with this
                  provision. Such records shall be maintained for at least two
                  (2) years after termination of this Agreement and SUPPLIER
                  shall make such records reasonably available to VWR or its
                  representative, under appropriate confidentiality provisions,
                  solely to enable VWR to verify SUPPLIER's compliance with this
                  provision.

         (c)      The price to VWR for the Products purchased pursuant to this
                  Agreement shall be the applicable price for such Products as
                  set forth in Addendum B. SUPPLIER shall be entitled to
                  reasonable price increases from time to time based upon
                  increases in the price paid by SUPPLIER for raw materials used
                  in the manufacture of the Products, such price increases to be
                  negotiated in good faith by SUPPLIER and VWR; provided,
                  however, that SUPPLIER will not propose a price increase for
                  the Products more than once in any calendar year commencing
                  January 1, 2006. In the event that VWR and SUPPLIER mutually
                  agree to a price increase, SUPPLIER shall provide to VWR an
                  updated Master Data File not later than October 1st of the
                  year in which the price increase is agreed upon (three (3)
                  months before the effective date of any such price increase).
                  All pricing information regarding the Products shall be
                  treated as "confidential" in accordance with Section 12
                  hereof.

6.       VWR'S DUTIES

         VWR SHALL:

         (a)      Within thirty (30) days after the execution and delivery of
                  this Agreement, VWR shall inform SUPPLIER of VWR's expected
                  volume requirements for Products for the forthcoming calendar
                  quarter. Thereafter, VWR shall use its commercially reasonable
                  best efforts to inform SUPPLIER, not less than sixty (60) days
                  prior to the forthcoming calendar quarter, of VWR's expected
                  volume requirements for Products for that quarter. In no event
                  shall any forecast provided by VWR be construed to be a
                  requirement that VWR purchase the amount of Products set forth
                  in that forecast.

                                  Page 3 of 16
<PAGE>

         (b)      Submit its order for Products on VWR's standard purchase order
                  form, via electronic data interchange or other method of
                  electronic commerce. All purchase orders shall be governed
                  only by the terms and conditions of this Agreement,
                  notwithstanding any inconsistent preprinted terms or
                  conditions appearing elsewhere on any other VWR or SUPPLIER
                  document.

         (c)      Pay all invoiced amounts within forty five (45) days of the
                  receipt of the Products; provided, that VWR shall be given a
                  two percent (2%) discount thereon if all invoiced amounts are
                  paid within thirty (30) days of receipt.

         (d)      Communicate to SUPPLIER any modifications, design changes or
                  improvements respecting the Products suggested by any
                  customer.

         (e)      Use its best efforts to advertise, promote, market, sell and
                  distribute the Products by methods which in VWR's judgment are
                  best suited for the sale of the products.

         (f)      Provide instruction to VWR's customers in the use and routine
                  maintenance of the Products in accordance with advice
                  furnished to VWR by SUPPLIER.

         (g)      Properly and courteously resolve billing disputes with
                  SUPPLIER.

         (h)      Confer with SUPPLIER to maximize promotion activities and
                  sales of the Products.

7.       SUPPLIER'S DUTIES

         SUPPLIER SHALL:

         (a)      Ship all Products FOB origin; via VWR's specified carriers in
                  accordance with VWR's most recently published routing guides
                  and shipping instructions. UPS or similar parcel-like
                  shipments shall be shipped by SUPPLIER to VWR via UPS. VWR
                  acknowledges that once Products are shipped they are
                  non-returnable, except as set forth in Sections 6(a), 7(m)(2),
                  9(a) and 10(c) hereof.

         (b)      Transfer good and marketable title to the Products, free and
                  clear of any liens or encumbrances.

         (c)      Pack, package, mark and otherwise prepare all Products for
                  shipment in a manner which is in accordance with the standards
                  of the International Safe Transit Association and good
                  commercial practice, acceptable to common carriers for
                  shipment, and adequate to insure their safe arrival at the
                  named destination. SUPPLIER shall comply with VWR's Global
                  Logistics / Delivery requirements, a copy of which has been
                  delivered to SUPPLIER.

                                  Page 4 of 16
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         (d)      Promptly furnish to VWR, when reasonably requested from time
                  to time and at no cost, reasonable quantities of original
                  factory outer cartons and packaging materials.

         (e)      Submit invoices to VWR with each shipment of Products which
                  shall include: purchase order numbers, Product numbers,
                  descriptions of Products, quantities, unit price and complete
                  bill to address for the Products so delivered.

         (f)      Properly and courteously resolve billing disputes with VWR,
                  and provide VWR with such information or assistance as VWR may
                  reasonably require to resolve billing disputes with its
                  customers or freight claims with carriers.

         (g)      Except as otherwise agreed, deliver Products as instructed by
                  VWR having at least six (6) months of shelf-life remaining
                  from the date of delivery to their expiration dates.

         (h)      Provide the warranties as set forth in Section 10.

         (i)      Promptly refer to VWR any inquiries or orders SUPPLIER may
                  receive from VWR customers respecting the Products.

         (j)      During the term of this Agreement and for a period of three
                  (3) years following its termination or expiration, procure and
                  maintain, at its sole cost and expense, with insurers
                  reasonably acceptable to VWR, general comprehensive liability
                  insurance covering each occurrence of bodily injury and
                  property damage in an amount of not less than $2,000,000
                  combined single limit with endorsements for product and
                  completed operations, blanket contractual liability, and broad
                  form vendor's liability. Such policy of insurance shall name
                  VWR as an additional insured thereunder. SUPPLIER shall
                  furnish to VWR before shipment of any Products a certificate
                  of insurance evidencing the foregoing endorsements, coverages
                  and limits, and providing that such insurance shall not be
                  cancelable or materially changed without at least thirty (30)
                  days' prior written notice to VWR.

         (k)      Timely furnish VWR, at no cost, with material safety data
                  sheets in a format acceptable to VWR's MSDS retrieval systems,
                  and any other documentation reasonably necessary to enable VWR
                  to comply with any then prevailing applicable federal or
                  country, state, municipal or local law, rule or regulation
                  (collectively, "Laws") relating to the Products, reasonable
                  quantities of SUPPLIER's sales literature in compliance with
                  VWR's Marketing Guidelines, product insert sheets and customer
                  instruction manuals for each Product, cooperate with VWR for
                  VWR created SUPPLIER literature and catalog modules by
                  completing VWR artwork approval forms upon request in a timely
                  manner and, upon request, suitable copy and photographs for
                  use by VWR in advertising and cataloging. SUPPLIER will
                  maintain accurate and current MSDS documentation and will
                  provide to VWR any revised MSDS documents as necessary.

                                  Page 5 of 16
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         (l)      For each Product sold to VWR, provide VWR with a current and
                  accurate Certificate of Origin pursuant to Article 504 of the
                  North American Free Trade Agreement ("NAFTA"). SUPPLIER agrees
                  to indemnify VWR and its customers from and against any
                  increased duties, penalties or other costs relating to
                  SUPPLIER's failure to provide a current and accurate
                  Certificate of Origin. In addition, VWR may refuse to export
                  Products within the NAFTA region and/or may withhold payment
                  for Products until SUPPLIER complies with all its obligations
                  hereunder.

         (m)      Comply (or cause compliance) in all material respects with any
                  Laws, including, but not limited to, the Federal Food, Drug
                  and Cosmetic Act, as amended from time to time, and the
                  regulations issued thereunder and similar laws within the
                  Territory, applicable to the conduct of SUPPLIER's business or
                  the manufacture, packaging, labeling and sale to VWR of
                  Products pursuant to this Agreement including, but not limited
                  to, the following:

                  (1)      Immediately notifying VWR upon becoming aware of any
                           defect or condition (actual or alleged) which in any
                           way may alter the specifications or quality of any
                           Products, render any Products in violation of any
                           Laws, cause revocation of any regulatory approval
                           with respect to any Products or their sale, give rise
                           to a claim against VWR by any third party, or
                           otherwise negatively affect the salability of any
                           Products.

                  (2)      Promptly notifying VWR of any Products affected by
                           holds or recalls, and reimburse VWR for the full
                           price paid by VWR for any Products returned to VWR by
                           a customer, or to SUPPLIER by VWR, due to a recall or
                           other manufacturing defect, plus all taxes,
                           transportation and other costs and expenses incurred
                           by VWR in the return thereof.

         (n)      Assist VWR's promotion activities including, without
                  limitation, having SUPPLIER's personnel accompany VWR's sales
                  personnel on sales presentations at such times, at such places
                  and with expenses allocated as may be agreed upon from time to
                  time by VWR and SUPPLIER. SUPPLIER's assistance shall focus
                  particularly in promoting the technical features, capabilities
                  and benefits of the Products. SUPPLIER shall also provide
                  VWR's customers from time to time with reasonable quantities
                  (e.g. 10-15 mmls) of sample Products at no charge, and make
                  Products available from time to time for demonstrations at the
                  facilities of VWR's customers.

         (o)      Develop and conduct training programs for VWR's employees with
                  respect to the Products at such times and places as may be
                  agreed upon from time to time by VWR and SUPPLIER, the cost
                  thereof to be borne by VWR.

         (p)      Make any claims for unpaid invoices in writing within one year
                  of the date of SUPPLIER's first invoice for such amount. VWR
                  shall not be obligated to make payments for, or investigate,
                  claims which are dated more than one year prior to SUPPLIER's
                  written claim or request for investigation.

         (q)      During the term of this Agreement and for a period of three
                  (3) years following its termination or expiration, keep and
                  maintain in accordance with GAAP complete and accurate
                  records, books of account, reports and other data related to
                  SUPPLIER's sales of Products to VWR during the prior three (3)
                  year period.

                                  Page 6 of 16
<PAGE>

         (r)      Label the Products under such brand name(s), trade name(s),
                  trademark(s) or logo(s) as set forth in Sections 3(b) and 3(c)
                  hereof, and as may be agreed upon by VWR and SUPPLIER from
                  time to time.

         (s)      If Products ordered by VWR during the each year of this
                  Agreement remain unsold at the end of such year, then, at the
                  request of VWR delivered to SUPPLIER no later than sixty (60)
                  days after the end of such year, SUPPLIER shall issue a return
                  goods authorization, without any restocking charges, for up to
                  one percent (1%) of the Products ordered by VWR during such
                  year.

         (t)      Notify VWR, in writing and no less than six (6) months prior
                  to discontinuing any Product.

         (u)      Notify VWR, in writing and no less than thirty (30) days prior
                  to renewal, whenever SUPPLIER reduces VWR's margin on Special
                  Price Quotation (SPQ's) renewal.

         (v)      For chemicals, and other regulated products, maintain
                  retention samples of all Products for each individual lot
                  number, until the expiration of the individual lot or as
                  specified by any regulatory agency with regulatory
                  jurisdiction over the Product.

         (w)      Notify VWR in writing no less than ninety (90) days prior to
                  any change to Product including, but not limited to,
                  manufacturing process or location, labeling, raw materials,
                  packaging, characterization, specification, analytical testing
                  or origin or any other change affecting form, fit or function
                  of the affected Products. VWR shall have the right to audit
                  SUPPLIER's facilities to determine compliance with applicable
                  federal, state, and local laws, regulations and rules and
                  other requirements applicable to the Products. Such audits
                  shall be scheduled at mutually agreeable times upon reasonable
                  advance written notice to SUPPLIER, shall be at VWR'S expense,
                  and shall not occur more than one (1) time per calendar year
                  unless required by SUPPLIER's compliance status or VWR's
                  obligations to its customers. In connection with performing
                  such audits, VWR shall comply with all reasonable rules and
                  regulations promulgated by SUPPLIER. All information disclosed
                  or reviewed in such inspections shall be deemed to be the
                  property of SUPPLIER and SUPPLIER Confidential Information.

         (x)      Implement and support a dedicated toll-free technical support
                  line for end-users and VWR sales representatives to support
                  the VWR Private Label line.

         (y)      Make available at SUPPLIER's offices, by email or telephone,
                  its merchandising manager to aid VWR in the development and
                  production of a mutually agreed amount of full color flyers,
                  and/or brochures.

                                  Page 7 of 16
<PAGE>

         (z)      Provide other merchandising support including regular Market
                  Reporter articles and competitive cross-references.

8.       FORCE MAJEURE

         (a)      In the event either party is prevented from performing its
                  obligations under this Agreement solely by circumstances
                  beyond the reasonable control and without the fault or
                  negligence of the party obligated to perform (including,
                  without limitation, strikes or other labor difficulties except
                  those involving either party, war, shortages of power or raw
                  material, Laws or acts of God), upon the prompt giving of
                  notice to the other party detailing such force majeure event
                  and its anticipated duration, the obligations of the party so
                  prevented shall be excused during such period of delay, and
                  such party shall take whatever reasonable steps are necessary
                  to relieve the effect of such cause as rapidly as possible.
                  The party invoking a force majeure event shall notify the
                  other party promptly upon the termination of such event.

         (b)      During the period that the performance by one of the parties
                  of its obligations under this Agreement has been suspended by
                  reason of a force majeure event, the other party may likewise
                  suspend the performance of all or part of its obligations
                  hereunder to the extent that such suspension is commercially
                  reasonable.

9.       PROPRIETARY RIGHTS

         (a)      PATENTS AND INFRINGEMENT

                  SUPPLIER shall prosecute diligently each application for
                  patent which is now or hereafter pending covering some one or
                  more of the Products and on issuance diligently prosecute each
                  infringer thereof. SUPPLIER shall repurchase from VWR, at a
                  price equivalent to the full purchase price paid by VWR, any
                  quantity of Products in VWR's inventory which VWR reasonably
                  believes it should not or cannot sell, based on the reasonable
                  opinion of VWR's counsel that future sales by VWR may result
                  in patent, trade name, trademark, service mark, copyright or
                  trademark infringement, or violation of any other proprietary
                  right, or because of a decision, whether interlocutory or
                  final, rendered in an action alleging any such infringement or
                  violation.

         (b)      OWNERSHIP OF PROPRIETARY RIGHTS

                  (1)      SUPPLIER recognizes that VWR is the owner of certain
                           brand names, trademarks, trade names, logos and other
                           intellectual property, including the VWR Marks,
                           connoting VWR which is proprietary to VWR, and that
                           SUPPLIER has no right or interest in or to any of
                           such intellectual property, other than as provided in
                           Section 3(a) hereof.

                  (2)      Except as otherwise contemplated by this Agreement,
                           neither SUPPLIER nor VWR, shall, without the prior
                           written consent of an authorized officer of the other
                           party, use any of such other party's brand names,
                           trademarks, trade names or logos, or adopt, use or
                           register any words, phrases or symbols so nearly
                           resembling any of such other party's brand names,
                           trademarks, trade names or logos as to be likely to
                           lead to confusion or uncertainty, or to impair or
                           infringe the same in any manner, or otherwise imply
                           any endorsement by one party of the other party or
                           its products or services.

                                  Page 8 of 16
<PAGE>

                  (3)      VWR recognizes that SUPPLIER is the owner of patents,
                           trademarks and other intellectual property with
                           respect to the Products, and that VWR has no right or
                           interest in or to such intellectual property.

10.      PRODUCT WARRANTIES

         (a)      As a condition of this Agreement, SUPPLIER specifically
                  represents and warrants to VWR that all Products shipped by
                  SUPPLIER to or on the order of VWR, its subsidiaries,
                  affiliates, divisions, subdistributors, agents,
                  representatives or customers, as of the date of such shipment:

                  (1)      Are free from defects in design, operation,
                           workmanship and materials, conform in all respects
                           with all labeling and product insert sheets and other
                           product specifications and claims made by SUPPLIER
                           for them, are produced consistent with good
                           manufacturing practices and good quality control
                           practices.

                  (2)      Do not infringe upon any patent, trade name,
                           trademark, service mark, copyright, or other
                           proprietary rights of third parties.

                  (3)      Are not products which may not be introduced into
                           commerce, adulterated or misbranded, or banned
                           devices, within the meaning of the Act or any other
                           Laws.

                  (4)      Are manufactured, priced, sold, labeled and packaged
                           in compliance with all Laws applicable to the
                           Products including, without limitation, environmental
                           protection, health and safety, energy, and employment
                           and labor laws, rules and regulations, and applicable
                           industry codes and standards and the California Safe
                           Drinking Water and Toxic Enforcement Act of 1986, as
                           amended from time to time.

                  (5)      Are not hazardous substances or, if they are
                           hazardous substances, are not misbranded or banned
                           hazardous substances within the meaning of the
                           Federal Hazardous Substances Act, as amended from
                           time to time (including the former Federal Caustic
                           Poison Act), and are labeled and packaged in
                           accordance with all Laws relating to hazardous
                           substances.

                  (6)      To the extent such Products are subject to the
                           Flammable Fabrics Act, as amended from time to time,
                           and regulations thereunder, have reasonably and
                           representatively been tested as prescribed by the
                           Consumer Product Safety Commission to ensure
                           conformity, at the time of shipment, to the
                           flammability standards in effect under the Flammable
                           Fabrics Act, as amended from time to time, any
                           applicable codes of the National Fire Protection
                           Association, and any other Laws relating to flammable
                           substances.

                                  Page 9 of 16
<PAGE>

                  EXCEPT AS OTHERWISE EXPRESSLY SET FORTH IN THIS AGREEMENT,
                  SUPPLIER MAKES NO OTHER WARRANTIES, EXPRESS OR IMPLIED, WITH
                  RESPECT TO THE PRODUCTS. SUPPLIER DISCLAIMS ALL OTHER
                  WARRANTIES, EXPRESS AND IMPLIED, INCLUDING WITHOUT LIMITATION
                  ANY IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
                  PARTICULAR PURPOSE.

         (b)      SUPPLIER authorizes VWR to pass through all warranties to
                  VWR's customers.

         (c)      SUPPLIER shall promptly replace, at no cost to VWR, any
                  Product which is defective or non-conforming, with a
                  non-defective or conforming Product (as applicable) or, at
                  VWR's option, credit VWR's account for all amounts paid with
                  respect to the defective or non-conforming Product. SUPPLIER
                  shall pay all taxes, transportation and other costs and
                  expenses incurred by VWR in the replacement of any defective
                  or non-conforming Product.

11.      INDEMNIFICATION BY SUPPLIER

         (a)      INDEMNIFICATION

                  SUPPLIER shall indemnify, defend, and hold harmless each of
                  VWR, its subsidiaries, affiliates, divisions, subdistributors,
                  agents, employees, representatives and customers, and its or
                  their respective successors and assigns (each, an "INDEMNIFIED
                  PARTY") from and against, and in respect of, any and all
                  actions, claims, suits, judgments, damages, liabilities,
                  losses, penalties, costs and expenses (including, without
                  limitation, attorneys' fees) of every kind whatsoever
                  (collectively, "DAMAGES") arising in any manner out of or
                  from, or in connection with any actual or alleged (i) patent,
                  copyright or trademark infringement, or violation of any other
                  proprietary right, arising out of the purchase, sale,
                  distribution or use of any Product, (ii) breach by SUPPLIER of
                  any term or provision of this Agreement, (iii) personal
                  injury, wrongful death or property damage arising out of or
                  relating to any Product including, but not limited to, the use
                  of any Product, and (iv) wrongful or negligent act or omission
                  by SUPPLIER and its officers, directors, shareholders, agents,
                  servants, employees, representatives or subcontractors;
                  provided, that this Section 11(a) shall not obligate SUPPLIER
                  to indemnify any Indemnified Party for any portion of Damages
                  (except for Damages based on theories of strict liability)
                  directly attributable to, and directly caused by, the gross
                  negligence of an Indemnified Party or any unauthorized
                  warranty relating to the Products by VWR.

                                  Page 10 of 16
<PAGE>

         (b)      PROCEDURE

                  Each Indemnified Party shall notify SUPPLIER of any third
                  party claim for which such Indemnified Party seeks
                  indemnification under this Agreement; provided, that the
                  failure to deliver such notice shall not affect SUPPLIER's
                  obligations to any Indemnified Party under this Section 11
                  except to the extent that such failure results in (i) the
                  failure of actual notice to SUPPLIER, and (ii) damage to
                  SUPPLIER, or an increase in SUPPLIER's indemnification
                  liability, solely as a result thereof. SUPPLIER may, but is
                  not obligated to, assume the defense of any claim to which
                  this Section 11 relates or may relate, and may appoint legal
                  counsel responsible for such defense; provided, that if
                  SUPPLIER chooses to assume such defense, any Indemnified Party
                  may, at its own expense, select its own counsel to represent
                  it; and provided further, that SUPPLIER may not settle any
                  such claim against an Indemnified Party without the prior
                  written consent of such Indemnified Party. If SUPPLIER elects
                  not to assume such defense, such Indemnified Party may elect
                  to do so and SUPPLIER shall pay all costs and expenses of
                  counsel selected by such Indemnified Party in connection with
                  such defense. Any legal counsel appointed by SUPPLIER to
                  defend such a claim shall be experienced in the type of
                  litigation involved and shall be reasonably satisfactory to
                  VWR. SUPPLIER and each Indemnified Party shall cooperate fully
                  in connection with all matters related to the defense of any
                  such claim.

         (c)      LIMITATION ON LIABILITY

                  EXCEPT TO THE EXTENT INCLUDED IN DAMAGES FOR AN INDEMNIFIED
                  THIRD PARTY CLAIM UNDER SECTION 11(a) HEREOF, SUPPLIER SHALL
                  NOT BE LIABLE TO ANY INDEMNIFIED PARTY (NOR TO ANY PERSON
                  CLAIMING RIGHTS DERIVED FROM ANY INDEMNIFIED PARTY) FOR
                  INCIDENTAL, INDIRECT, CONSEQUENTIAL, SPECIAL, PUNITIVE, OR
                  EXEMPLARY DAMAGES OF ANY KIND (INCLUDING LOST REVENUES OR
                  PROFITS OR LOSS OF BUSINESS) IN ANY WAY RELATING TO THIS
                  AGREEMENT (INCLUDING, WITHOUT LIMITATION AS A RESULT OF ANY
                  BREACH OF WARRANTY OR OTHER TERM OF THIS AGREEMENT OR AS A
                  RESULT OF NEGLIGENCE OR BREACH OF STATUTORY DUTY), REGARDLESS
                  OF WHETHER SUPPLIER WAS ADVISED, HAD OTHER REASON TO KNOW, OR
                  IN FACT KNEW OF THE POSSIBILITY THEREOF.

12.      CONFIDENTIALITY

         (a)      INFORMATION

                  During the term of this Agreement, each party may have or may
                  be provided access to the other party's confidential
                  information and materials (including, without limitation,
                  marketing, sales and new product development information). All
                  such information which, if in written or other tangible form,
                  is clearly designated as "confidential" or, if disclosed
                  orally, is designated as "confidential" in a written
                  memorandum delivered by the disclosing party promptly
                  following such oral disclosure, shall be retained in
                  confidence in accordance with the terms of this Agreement and
                  any applicable separate nondisclosure agreement between
                  SUPPLIER and VWR. Further, neither party shall (except as
                  expressly authorized herein during the term of this
                  Agreement), either during the term of this Agreement or after
                  its termination or expiration, use, publish or disclose or
                  cause or permit anyone else to use, publish or disclose any
                  such information, unless the disclosing party can show by
                  written evidence that such information was known to it at the
                  time of receipt thereof from the other party, or until such
                  information becomes publicly available through no fault of the
                  disclosing party, and except as disclosure may be required by,
                  or pursuant to, Laws or other act or order of any court,
                  government or governmental agency, as to which the disclosing
                  party shall give the party whose information is being
                  disclosed prompt notice, and with whom the disclosing party
                  shall confer on the possibility of seeking a protective order
                  or other means to preserve the confidentiality of the
                  information required to be disclosed.

                                  Page 11 of 16
<PAGE>

         (b)      TERMINATION

                  Upon termination or expiration of this Agreement, each party
                  shall either return all copies of any confidential information
                  of the other party described in Section 12(a) in such first
                  party's possession or control, or certify in writing that all
                  such tangible information has been destroyed.

         (c)      REMEDY

                  Each party recognizes and acknowledges that the other party
                  would not have any adequate remedy at law for the breach by
                  the first party of any one or more of its obligations
                  contained in this Section 12, and agrees that in the event of
                  any such actual or potential breach, the non-breaching party
                  may, in addition to the other remedies which may be available
                  to it, file a suit in equity to enjoin the other party
                  therefrom.

13.      TERMINATION

         (a) Either party shall have the right to terminate this Agreement,
         effective immediately upon notice and without prejudice to any of its
         other rights or remedies, if the other party:

                  (i)      BANKRUPTCY OR INSOLVENCY

                  Becomes insolvent, bankrupt or shall generally fail to pay its
                  debts as such debts become due; admits in writing its
                  inability to pay its debts; has a receiver or trustee
                  appointed for it or its property; makes an assignment for the
                  benefit of its creditors; has commenced by, for or against it
                  any proceedings under any Law related to bankruptcy,
                  insolvency or the reorganization or the release of debtors; or
                  becomes liquidated or dissolved.

                  (ii)     FORCE MAJEURE

                  Is affected by a force majeure event which continues for more
                  than six (6) consecutive months.

                  (iii)    DEFAULT OR BREACH

                  Defaults or is in breach of any material term or provision of
                  this Agreement, and fails (i) within ten (10) days following
                  delivery by the terminating party of a notice specifying such
                  default or breach, to notify the terminating party that such
                  default or breach has been cured or shall be cured within
                  thirty (30) days following delivery of such notice, or (ii)
                  within thirty (30) days following delivery by the terminating
                  party of such notice, to remedy such default or breach to the
                  terminating party's reasonable satisfaction.

                                  Page 12 of 16
<PAGE>

         (b)      TERMINATION FOR CONVENIENCE

                  VWR may terminate this Agreement at any time with or without
                  cause and without liability for such termination, upon ninety
                  (90) days written notice to SUPPLIER.

14.      PROCEDURES ON TERMINATION OR EXPIRATION

         (a)      WINDUP

                  For a period of sixty (60) days following the effective date
                  of termination of this Agreement by VWR pursuant to Section
                  13(b), SUPPLIER shall continue to honor VWR's orders for
                  Products, and VWR shall pay for the Products on the terms and
                  conditions of this Agreement.

         (b)      SURVIVAL

                  The provisions of Sections 6(c), 7(b), 7(f), 7(j), 7(m), 7(p),
                  7(q), 9, 10, 11, 12 and this 14 shall remain in full force and
                  effect following the termination or expiration of this
                  Agreement.

15.      MISCELLANEOUS

         (a)      NOTICES

                  All notices required by this Agreement shall be in writing,
                  and shall be effective on receipt if delivered personally, on
                  the first business day following the date of mailing if sent
                  by a nationally recognized courier guaranteeing next day
                  delivery, or on the third business day following the date of
                  mailing if sent by certified mail, postage prepaid, addressed
                  as follows (or to such other addresses as may be designated by
                  similar notice from time to time delivered to the other
                  party):

                           If to SUPPLIER, to:

                                    BioLife Solutions, Inc.
                                    171 Front Street
                                    Owego, New York 13827
                                    Attention: John G. Baust, Ph.D.

                           If to VWR, to:

                                    VWR International, Inc.
                                    1310 Goshen Parkway
                                    West Chester, PA  19380
                                    Attention: John A. D'Errico
                                    e-mail address: john_derrico@vwr.com

                                    (must be followed-up with written copy)

                                  Page 13 of 16
<PAGE>

         (b)      US GOVERNMENT PROCUREMENT REGULATIONS

                  If the Products to be furnished by SUPPLIER are to be used in
                  the performance of a U.S. government contract or subcontract,
                  those clauses of the applicable U.S. Government procurement
                  regulation which are required by Federal Statute to be
                  included in U.S. Government subcontracts shall be incorporated
                  herein by reference including, without limitation, the Fair
                  Labor Standards Act of 1938, as amended.

         (c)      MERGER, MODIFICATION AND WAIVER

                           This Agreement, the attached Addenda and VWR's Global
Logistics and Delivery Requirements and Regulatory Requirements are the entire
agreement between the parties with respect to the subject matter hereof, there
being no prior or contemporaneous written or oral promises or representations
not incorporated herein. No amendment, modification or waiver of the terms of
this Agreement shall be binding on either party unless reduced to writing and
signed by an authorized officer of the party to be bound and, in the case of a
waiver, shall be effective only in the specific instance, and for the specific
purpose for which given, and shall not be construed as a waiver of any
subsequent breach. The failure of either party to enforce at any time or for any
period of time any of the provisions of this Agreement shall not be construed as
a waiver of such provisions or of the right of such party thereafter to enforce
each and every such provision.

         (d)      CONSTRUCTION AND INTERPRETATION

                  The captions in this Agreement have been inserted for
                  convenience of reference only and do not constitute a part of,
                  and shall not be considered in construing, this Agreement. If
                  any portion of this Agreement is held by a court of competent
                  jurisdiction to be invalid for any reason, the remainder of
                  this Agreement shall not be deemed invalid but shall remain in
                  full force and effect. No course of dealing, usage of trade or
                  course of performance shall supplement, explain or amend any
                  term, condition or instruction of this Agreement, or any
                  shipment of Products hereunder.

         (e)      APPLICABLE LAW AND VENUE

                  This Agreement is made pursuant to, and shall be construed and
                  enforced exclusively in accordance with, the internal laws of
                  the State of Delaware (and United States federal law, to the
                  extent applicable), without giving effect to otherwise
                  applicable principles of conflicts of law. The United Nations
                  Convention on Contracts for the International Sales of Goods
                  expressly does not apply.

         (f)      AUTHORITY TO ENTER INTO AGREEMENT

                  SUPPLIER represents and warrants that it is authorized to
                  enter into this Agreement and that in so doing it is not in
                  violation of the terms or conditions of any contract or other
                  agreement to which it may be a party.

                                  Page 14 of 16
<PAGE>

         (g)      ASSIGNMENT

                  This Agreement shall be binding upon and inure to the benefit
                  of the parties hereto and their respective successors and
                  permitted assigns and designees; provided, however, that
                  SUPPLIER shall not have the right to transfer, assign or
                  delegate its rights or obligations under this Agreement or any
                  portion thereof without the prior written consent of an
                  authorized representative of VWR, which consent shall not be
                  unreasonably withheld (except that SUPPLIER may assign this
                  Agreement to a parent, subsidiary or successor corporation
                  without such consent).

         (h)      NATURE OF RELATIONSHIP

                  Neither party, its agents or employees shall, under any
                  circumstances, be considered to be an agent, partner, joint
                  venturer or representative of the other party, or anything
                  other than an independent contractor for all purposes of this
                  Agreement, and except as may be authorized specifically in
                  writing, neither party has express or implied authority to
                  bind the other in any manner whatsoever by virtue of this
                  Agreement.

         (i)      COUNTERPARTS

                  For convenience of the parties, this Agreement may be executed
                  in one or more counterparts, each of which shall be deemed an
                  original for all purposes.

                                  Page 15 of 16
<PAGE>

         IN WITNESS WHEREOF, and intending to be legally bound hereby, the
parties have caused this Agreement to be executed and delivered by their duly
authorized officers as of the date first above written.

                                          BIOLIFE SOLUTIONS, INC.

                                          By:/s/ John G. Baust
                                             ---------------------------
                                             Authorized Representative
                                             Name:  John G. Baust
                                             Title:     President
                                             Date:  May 12, 2005

                                          VWR INTERNATIONAL, INC.

                                          By:/s/ Kevin Leak
                                             ---------------------------
                                             Authorized Representative
                                             Name: Kevin Leak
                                             Title: VP Strategic Sourcing
                                             Date:  May 5, 2005

                                  Page 16 of 16

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