产品描述： MES is a zwitterionic N-substituted aminosulfonic acid known as a Good's buffer, active in the pH range 6-8 with a pKa of 6.10 at 25°C.

With a pKa value near physiological pH, it is not absorbed through cell membranes, and it is essentially transparent to UV light. MES is

used as a running buffer for resolving very small proteins (ex: 13 kDa) on bis-tris gels. Also used in cation-exchange chromatography

and as a biological buffer in plant cell cultures. MES solutions can be prepared to the desired pH by titrating the free acid with sodium

hydroxide.

Also available: MES, Sodium Salt (sc-216095); MES hemisodium salt (sc-216093); MES solution (sc-300959); MES monohydrate (sc-255262)