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 a manual defrostfreezer and avoid repeated freeze-thaw cycles. 12 months from dateof receipt, -20 to -70℃ as supplied. 1 month, 2 to 8℃ under sterileconditions after reconstitution. 3 months, -20 to -70℃ under sterileconditions after reconstitution.http://www.creativebiomart.net/description_106991_12.htm