Lyophilized material should be kept at 4°C until rehydrated and will remain stable for a minimum of 2 years. Rehydrate by adding 1.0 ml of reagent quality water with preservative to the product vial. Store the liquid solution at 4°C for up to a week; thereafter, aliquots should be prepared and stored frozen. Stable for a minimum of 1 year at -20°C but multiple freeze-thaw cycles should be avoided.
