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Specifications

Catalog #	M4615
MOPS Sodium Salt 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.
Purity	99%
Appearance	White powder
Identity (IR)	Conforms to Reference
Solubility (5%, H2O)	Colorless, clear, complete
pH (0.1M)	9.8-11.0
pKa	7.0-7.4
Water (KF)	2%
Absorbance (280nm)	0.03
Absorbance (260nm)	0.05
Heavy Metals	0.001%
CAS Number	71119-22-7
Molecular Formula	C7H14NO4S•Na
Molecular Weight	231.24
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	Morpholinopropanesulfonic acid sodium salt