Store lyophilized product at 2–8°C. After reconstitution, aliquot and store at -70°C or below. Prepare working dilution only prior to immediate use. For long-term storage after reconstitution, we suggest the addition of an equal volume of glycerol (ACS or better grade) for a final glycerol concentration of 50% followed by storage at -20°C. Avoid multiple freeze/thaw cycles. Please note that the concentration of protein and buffer salts will decrease to one-half of the original after the addition of glycerol. Expiration date is one year from date of reconstitution.
