Castle Rock, CO 80108

774 Maleta Lane Castle Rock, CO 80108

(303) 660-3692 (303) 688-6863 • FAX

CERTIFICATE OF ANALYSIS

Product Name: Luteinizing Hormone, Human

Lot Number: Grade: High Purity

Activity: >8500 IU/mg by ELISA Purity: >/= 95% by SDS-PAGE

Molecular Weight: Approximately 29kDa

Source: Human Pituitary Glands

Form: Lyophilized powder.

Buffer: Lyophilized from 50mM Ammonium Bicarbonate

Storage: -2-8C for short term storage, -20 degrees C for long term storage after reconstitution. Avoid freeze/thaw cycles.

Manufacture Date: Expiration: 5 years

General Information: Reconstitute using neutral pH buffer of choice. Avoid extreme high and low pH.

Serum from donors has been tested and found to be negative for HIV-1/HIV-2, Hepatitis B Core Antigen, Hepatitis B Surface Antigen, Hepatitis C Virus and Syphilis by current FDA approved methods. However, because no test method can offer complete assurance that HIV, HBsAg, HCV, Syphilis or other infectious agents are absent, this material should be handled at the Bio-safety Level 2 (BSL 2) as recommended for any potentially infectious human serum or blood specimen in the CDC/NIH manual "Biosafety in microbiological and Biomedical Laboratories", 1999. THIS MATERIAL IS SOLD FOR IN-VITRO DIAGNOSTIC USE ONLY IN MANUFACTURING OR RESEARCH. THIS MATERIAL IS NOT SUITABLE FOR INJECTION. USE OF PRODUCT IS DETERMINED BY END USER. We certify this to be true to the best of our knowledge.

This product is for laboratory use only and is not intended for use in-vivo.

Approved: ______Date: ______

ProNique Scientific, Inc.