Store lyophilized product at 2-8 degree C. After reconstitution, product is stable for approximately 6 weeks at 2-8 degree C as an undiluted liquid. Prepare working dilution only prior to immediate use. For extended storage after reconstitution, we suggest the addition of an equal volume of glycerol (ACS or better grade) to make a final glycerol concentration of 50% followed by storage at -20 degree C, with or without aliquoting. Please note that the concentration of protein and buffer salts will decrease to one-half of the original after addition of glycerol. Expiration date is one year from date of reconstitution.
