HEPES Buffer Grade
Synonym: 4-(2-Hydroxyethyl)-1-piperazine-1-ethanesulfonic acid, N-(2-Hydroxyethyl)-piperazine-N'-2-ethanesulfonic acid
Molecular Formula: C₈H₁₈N₂O₄S
Molecular Weight: 238.31 g/mol
Size: 500g

Specifications:
CAS Number: 7365-45-9
Storage: RT
Melting point: 210-215°C
Useful pH range: 6.8-8.2
pKa (20C°): 7.55
Assay (titr.): min. 99.5%
pH (1%; H₂O): 4.7-6.0
Heavy metals (as Pb): max. 0.001%
Water: max. 0.5%
Chloride: max. 0.05%
Sulfate: max. 0.05%

Related documents for download

HEPES Buffer Grade Brochure