Pricing

  For pricing information, USA customers sign in.
  Outside USA? Please contact your distributor for pricing.

Specifications

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 Origin	USA
CAS Number	75277-39-3
Molecular Formula	C8H17N2O4SNa
Molecular Weight	260.3
Purity	99.0% (Dried basis)
Form	White, crystalline 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	N-[2-Hydroxyethyl]piperazine-N?-[2-ethanesulfonic acid] sodium salt