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You are here:Home » Biochemicals » Biochem-Molecular Biology » HEPES Sodium Salt

HEPES Sodium Salt


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HEPES Sodium is a biological buffer (zwitterionic) designed by Good, et al., and typically referred to as Good’s buffer useful in cell culture media formulations.
Catalog #H2030
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.
pH (1%) 10.0 ± 1.0
pKa 7.5 ± 0.2
Water 1.5%
Heavy Metals 0.001%
RNase, DNase, Protease None Detected
Endotoxin 2EU/mg
Country of OriginUSA
CAS Number75277-39-3
Molecular FormulaC8H17N2O4SNa
Molecular Weight260.3
Purity99.0% (Dried basis)
FormWhite, crystalline powder
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 namesN-[2-Hydroxyethyl]piperazine-N?-[2-ethanesulfonic acid] sodium salt

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