Stored at -20C prior to reconstitution for 1 year.After reconstitution with sterile water at 0.1 mg/mL, store at 4C for 1 month. For prolonged storage, dilute to working aliquots in a 0.1% BSA solution, store at -80C for 3 months.Aliquot to avoid repeated freezing and thawing.Centrifuge vial before opening. Suspend the product by gently pipetting the above recommended solution down the sides of the vial. DO NOT VORTEX. Allow several minutes for complete reconstitution.