MES sodium salt

PharmaGrade, Manufactured under appropriate controls for use as a raw material in pharma or biopharmaceutical production, suitable for cell culture

4-Morpholineethanesulfonic acid sodium salt, 2-(N-Morpholino)ethanesulfonic acid sodium salt
Empirical Formula (Hill Notation):
CAS Number:
Molecular Weight:
Beilstein/REAXYS Number:
EC Number:
MDL number:
PubChem Substance ID:

Quality Level

biological source




product line





cell culture | mammalian: suitable


Endotoxin and microbial, tested

useful pH range

5.5 - 6.7




suitable for manufacturing use

foreign activity

Cytotoxicity, DNase, NICKase, RNase, and Protease; tested

SMILES string




InChI key


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General description

PharmaGrade products are manufactured under appropriate controls for use as a raw material in pharma or biopharmaceutical production. For more information on the PharmaGrade Program, visit


MES Sodium is a biological buffer often referred to as a “Good′s” buffer. The pKa of MES is 5.96 which makes MES an ideal candidate for cell culture media and protein based buffer formulations to maintain a stable environment in solution. MES Sodium is considered to be non-toxic to culture cell lines, highly water soluble and provides high-solution clarity.

MES Sodium is used in cell culture media, biopharmaceutical buffer formulations both upstream and downstream and diagnostic reagents. MES based buffers are used in purification bioprocesses of antibodies, peptides, proteins and blood components.


Product is available in the following package sizes:
RES0114M-A701X: 100g container
RES0114M-A702X 1kg container
RES0114M-A704X: 10kg container
RES0114M-A705X: 25kg container


NONH for all modes of transport

WGK Germany


Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

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