Product Name: 4-Hydroxyethylpiperazineethanesulfonic acid (HEPES)

Alias: N-(2-hydroxyethyl)piperazine-N'-2-ethanesulfonic acid

CAS No.: 7365-45-9

Item No.: Q0005

Molecular formula: C8H18N2O4S

Molecular weight: 238.305

Density: 1.07 g/mL

Melting / boiling point: 234-238 ° C (MP)

Content / Specification: 99.0% ~ 101.0%

Appearance: white crystalline powder

Uses: biological buffer

Storage conditions: normal temperature

The chemical name of HEPES is 4-hydroxyethylpiperazineethanesulfonic acid (CAS: 7365-45-9), a white crystalline powder. The pH buffer range is 6.8~8.2 and has a pKa of 7.5 at 25°C. In biological experiments, it is an important pH stabilizing agent, usually by selecting an appropriate weak acid and its conjugate base to give a suitable pH. Most biological reactions occur under neutral conditions, and the acid-base form of the buffer is not required to chelate with certain metal ions.

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