H7637

Sigma-Aldrich

HEPES hemisodium salt

≥99% (titration)

Synonym(s):
N-(2-Hydroxyethyl)piperazine-N′-(2-ethanesulfonic acid) hemisodium salt, 4-(2-Hydroxyethyl)piperazine-1-ethanesulfonic acid hemisodium salt
Empirical Formula (Hill Notation):
C8H17.5N2O4S · 0.5Na
CAS Number:
Molecular Weight:
249.30
PubChem Substance ID:
NACRES:
NA.25
Pricing and availability is not currently available.

assay

≥99% (titration)

form

powder

pH

7.4-7.7 (25 °C, 0.1 M in water)

useful pH range

6.8 - 8.2

pKa 

7.5

solubility

water: soluble 0.5 g/mL

Featured Industry

Diagnostic Assay Manufacturing

storage temp.

room temp

SMILES string

Na+.OCCN1CCN(CC1)CCS(O-)(=O)=O

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Personal Protective Equipment

dust mask type N95 (US),Eyeshields,Gloves

RIDADR

NONH for all modes of transport

WGK Germany

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

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