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MES Free Acid


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Catalog #M3000
MES Free Acid is a biological buffer (zwitterionic) designed by Good, et al., and typically referred to as Good’s buffer useful in cell culture media formulations. Selection of biological buffer systems should include the following criteria exclusion by biological membranes, low absorption between 240 and 700nm, chemically stable, and stable to temperature and concentration changes.
CAS Number4432-31-9
Molecular FormulaC6H13NO4S
Molecular Weight195.2
Identity (IR)Conforms to reference
AppearanceWhite crystalline powder
Solubility (10%)Colorless, clear, complete
Water (KF)10%
pH (1%)3.5-4.1
Absorbance (A260)0.1
Absorbance (A280)0.1
Heavy Metal (Pb)0.0003%
Iron (Fe)0.0005%
DNaseNone Detected
RNaseNone Detected
ProteaseNone Detected
Important NoteThis product as supplied is intended for research use only, not for use in human, therapeutic or diagnostic applications without the expressed written authorization of United States Biological.
Alternate names2-(N-Morpholino)ethanesulfonic acid

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