H9897
Sigma

HEPES hemisodium salt

dry powder

1 of 1

Synonym

4-(2-Hydroxyethyl)piperazine-1-ethanesulfonic acid hemisodium salt

N-(2-Hydroxyethyl)piperazine-N′-(2-ethanesulfonic acid) hemisodium salt

Molecular Formula

C₈H_17.5N₂O₄S· 0.5Na

Molecular Weight

249.30

CAS Number

103404-87-1

MDL number

MFCD00036463

PubChem Substance ID

24895874

Descriptions

Packaging

foil pouches

Reconstitution

Contents of each pouch dissolved in 1 liter deionized water will yield 0.1 M sodium HEPES buffer, pH 7.5 at 25 °C.

Properties

form

dry powder

useful pH range

6.8 - 8.2

pKa

7.5

Safety

WGK Germany

3-10

Related Categories

... Biological Buffers > Buffers A to Z

... Biological Buffers > Good’s Buffers

... Buffer Convenience Packaging > Preweighed Buffer Powders

MSDS

Certificate of Analysis