Creative BioMart provides quality recombinant proteins, diagnostic antibodies and antigens, diagnostic enzymes and pharmaceutical enzymes to the research community of biology, clinical research, molecular diagnostics and biopharmaceutical drug development.Use amanual defrost freezer and avoid repeated freeze-thaw cycles. 6 months from date of receipt, -20 to -70 ℃ as supplied. 3months, -20 to -70 ℃ under sterile conditions after reconstitution.http://www.creativebiomart.net/description_107097_7.htm