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Specifications

Catalog #	M3005
MES Sodium Salt is a biological buffer (zwitterionic) designed by Good et al., and typically referred to as Good’s buffer. It is useful in cell culture media formulations. Selection of biological buffer systems should include the following criteria	exclusion by biological membranes, low absorption between 240-700nm, chemically stable, and stable to temperature and concentration changes.
Appearance	White powder
Solubility (10%, H2O)	Colorless, clear, complete
Identity (IR)	Conforms to reference
Water (KF)	10%
pH (1%)	9.5±0.6
Absorbance (A260)	0.05
Absorbance (A280)	0.03
CAS Number	71119-23-8
Molecular Formula	C6H12NO4SNa
Molecular Weight	217.2
Purity	98%
Form	White powder
Important Note	This 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 names	2-(N-Morpholino)ethanesulfonic acid sodium salt