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Sigma-Aldrich

HEPES

≥99.0%, solid

Synonym(s):

4-(2-Hydroxyethyl)piperazine-1-ethanesulfonic acid, N-(2-Hydroxyethyl)piperazine-N′-(2-ethanesulfonic acid)

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About This Item

Empirical Formula (Hill Notation):
C8H18N2O4S
CAS Number:
7365-45-9
Molecular Weight:
238.30
Beilstein:
883043
EC Number:
230-907-9
MDL number:
MFCD00006158
UNSPSC Code:
12161700
PubChem Substance ID:
329750105

product name

HEPES, ≥99.0%

Assay

≥99.0%

form

solid

availability

available only in Japan

useful pH range

6.8-8.2

pKa (25 °C)

7.5

SMILES string

OCCN1CCN(CC1)CCS(O)(=O)=O

InChI

1S/C8H18N2O4S/c11-7-5-9-1-3-10(4-2-9)6-8-15(12,13)14/h11H,1-8H2,(H,12,13,14)

InChI key

JKMHFZQWWAIEOD-UHFFFAOYSA-N

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Suitability

for biological purposes

Storage Class Code

13 - Non Combustible Solids

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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