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MES Sodium Salt

MES, Sodium Salt (2-(N-Morpholino)ethanesulfonic acid sodium salt) 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.

Product Details

Category Biological Buffers
Price POA
CAS Number 71119-23-8
Formula C6H12NNaO4S
Molecular Weight 217.22
Purity 99.0%
Appearance solid form
Availability In Stock
Storage Conditions +4°C

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