H3784

Sigma

 

HEPES sodium salt

Biotechnology Performance Certified, cell culture tested, ≥99.5% (titration)

Synonym:4-(2-Hydroxyethyl)piperazine-1-ethanesulfonic acid sodium salt, N-(2-Hydroxyethyl)piperazine-N′-(2-ethanesulfonic acid) sodium salt
CAS Number:75277-39-3
Linear Formula:C8H17N2NaO4S
Molecular Weight:260.29
EC Number:278-169-7
MDL number:MFCD00036463
PubChem Substance ID:24895595

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Description

Physical formLyophilized, spray dried, or crystallized material.

Properties

gradeBiotechnology Performance Certified
assay≥99.5% (titration)
total impurities Endotoxin and bioburden, tested
useful pH range6.8 - 8.2
pKa (25 °C)7.5
EQP levelElite
cation tracesFe: ≤5 ppm
 heavy metals (as Pb): ≤5 ppm
abs.A0.1M/260, H2O ≤0.05
 A0.1M/280, H2O ≤0.05
suitabilitycell culture tested
foreign activityDNase, RNase, protease, none detected

Safety

Personal Protective EquipmentEyeshields, Gloves, type N95 (US), type P1 (EN143) respirator filter
Safety Statements22-24/25
WGK Germany3