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.Stable for up to twelve months from date of receipt at -20 C. Stable for at least 3 months when stored in working aliquots with a carrier protein at -20 C. Avoid repeated freeze/thaw cycles.http://www.creativebiomart.net/description_397609_12.htm