EX-99.4

For any questions regarding this Notice of Guaranteed Delivery or for any additional information, you may contact the exchange agent by telephone at (212) 750-6474.

Delivery of this Notice of Guaranteed Delivery to an address other than as set forth above or transmission of this Notice of Guaranteed Delivery via a facsimile transmission to a number other than as set forth above will not constitute a valid delivery.

Registered holders of the 7.25% Senior Notes due 2017 of VWR Funding, Inc. (“VWR”) (together with the guarantees thereof, the “Old Notes”), who wish to tender their Old Notes in exchange for a like aggregate principal amount of VWR’s 7.25% Senior Notes due 2017, which have been registered under the Securities Act of 1933, as amended (the “Securities Act”) (together with the guarantees thereof, the “Exchange Notes”), must use this Notice of Guaranteed Delivery or one substantially equivalent hereto to tender Old Notes pursuant to the Exchange Offer (as defined below) if: (1) their Old Notes are not immediately available or (2) they cannot deliver their Old Notes (or a confirmation of book-entry transfer of Old Notes into the account of the Exchange Agent at The Depository Trust Company), the Letter of Transmittal or any other documents required by the Letter of Transmittal to the Exchange Agent prior to 12:00 midnight, New York City time, on the Expiration Date or (3) they cannot complete the procedure for book-entry transfer on a timely basis. This Notice of Guaranteed Delivery may be delivered by hand or sent by facsimile transmission or mail to the Exchange Agent. See “Exchange Offer—Procedures for Tendering Old Notes” in the prospectus dated , 2013 (as it may be amended or supplemented from time to time, the “Prospectus”), which together with the accompanying letter of transmittal (the “Letter of Transmittal”) constitutes the offer to exchange (the “Exchange Offer”) of VWR.

The undersigned hereby tenders the principal amount of Old Notes indicated below pursuant to the guaranteed delivery procedures set forth in the Prospectus and the Letter of Transmittal, upon the terms and subject to the conditions contained in the Prospectus and the Letter of Transmittal, receipt of which is hereby acknowledged.

All authority herein conferred or agreed to be conferred by this Notice of Guaranteed Delivery shall survive the death or incapacity of the undersigned and every obligation of the undersigned under this Notice of Guaranteed Delivery shall be binding upon the heirs, personal representatives, executors, administrators, successors, assigns, trustees in bankruptcy and other legal representatives of the undersigned.

Signature(s) of Registered Holder(s) or Authorized Signatory:


Name(s) of Registered Holder(s):


Date:


Address:


Telephone No. (Including Area Code):

This Notice of Guaranteed Delivery must be signed by the registered holder(s) exactly as their name(s) appear(s) on certificate(s) for notes or on a security position listing as the owner of notes, or by person(s) authorized to become registered holder(s) by endorsements and documents transmitted with this Notice of Guaranteed Delivery. If signature is by a trustee, executor, administrator, guardian, attorney-in-fact, officer or other person acting in a fiduciary or representative capacity, such person must provide the following information:

Please print name(s) and address(es):


Name(s):


Capacity (full title):


Address(es):

DO NOT SEND NOTES WITH THIS FORM. NOTES SHOULD BE SENT TO THE EXCHANGE AGENT TOGETHER WITH A PROPERLY COMPLETED AND DULY EXECUTED LETTER OF TRANSMITTAL OR PROPERLY TRANSMITTED AGENT’S MESSAGE.

GUARANTEE

(Not To Be Used for Signature Guarantee)

The undersigned, an “eligible guarantor institution” within the meaning of Rule 17Ad-15 promulgated under the Securities Exchange Act of 1934, as amended, hereby guarantees that the notes to be tendered hereby are in proper form for transfer (pursuant to the procedures set forth in the prospectus under “Exchange Offer — Procedures for Tendering Senior Notes — Guaranteed Delivery Procedures”), and that the exchange agent will receive (a) such notes, or a book-entry confirmation of the transfer of such notes into the exchange agent’s account at The Depository Trust Company, and (b) a properly completed and duly executed letter of transmittal (or facsimile thereof) with any required signature guarantees and any other documents required by the letter of transmittal, or a properly transmitted agent’s message, within three New York Stock Exchange, Inc. trading days after the date of execution hereof.

The eligible guarantor institution that completes this form must communicate the guarantee to the exchange agent and must deliver the letter of transmittal, or a properly transmitted agent’s message, and notes, or a book-entry confirmation in the case of a book-entry transfer, to the exchange agent within the time period described above. Failure to do so could result in a financial loss to such eligible guarantor institution.


Name of Firm:



Authorized Signature:



Title:



Address:
		(Zip Code)



Telephone Number (Including Area Code):



Dated:


By Registered Mail or Overnight Carrier:	Facsimile Transmission: (for eligible institutions only)	By Hand Delivery:

Law Debenture Trust Company of New York 400 Madison Avenue, 4th Floor New York, New York 10017 Attention: Corporate Trust Services	Facsimile: (212) 750-1361	Law Debenture Trust Company of New York 400 Madison Avenue, 4th Floor New York, New York 10017 Attention: Corporate Trust Services
	For information or to Confirm by Telephone: (212) 750-6474


Certificate Number(s) (If Known) of Old Notes or if Old Notes will be Delivered by Book-Entry Transfer at the Depositary Trust Company, Insert Account No.	Aggregate Principal Amount Represented by Old Notes	Aggregate Principal Amount of Old Notes Being Tendered*