Synonyms: 4-(2-Hydroxyethyl)piperazine-1-ethanesulfonic acid hemisodium salt; N-(2-Hydroxyethyl)piperazine-N′-(2-ethanesulfonic acid) hemisodium salt
Formula: C8H17.5N2O4S· 0.5Na
Formula Weight: 249.30
CAS No.: 103404-87-1
Reconstitution: Contents of each pouch dissolved in 1-áliter deionized water will yield 0.1-áM sodium HEPES buffer, pH-á7.5 at 25-á°C.
Packaging: foil pouches
Form: dry powder
pKa: 7.5
Useful pH Range: 6.8 - 8.2