Store lyophilized material at 2-8C or -20C.After reconstitution with 500 uL of sterile water, store and keep aliquots at -20C for up to six months for a higher stability, and at 2-8C with an appropriate antibacterial agent for up to one week. Centrifuge to remove any insoluble material. Glycerol (1:1) may be added for an additional stability.Aliquot to avoid repeated freezing and thawing.
