Supplied as a liquid in 0.2M Tris-Hcl, 0.15M sodium chloride, pH 7.4.
保存建议
For long-term storage, aliquot to avoid repeated freezing and thawing and freeze at -70 degree C. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap. Aliquots are stable for at least 6 months.