Merck HEPES

HEPES

BioXtra, suitable for mouse embryo cell culture, ≥99.5% (titration)

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

Quality Level

400

제품 라인

BioXtra

assay

≥99.5% (titration)

form

powder

technique(s)

cell culture | embryo: suitable

pH

5.0-6.5 (25 °C, 238 g/L)

useful pH range

6.8-8.2

pKa(25 °C)

7.5
7.5

solubility

water: 500 mg/mL, clear, colorless

흡수

≤0.05 at 290 in H2O at 33%

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

HEPES has been described as one of the best all-purpose buffers available for biological research. At biological pH, the molecule is zwitterionic, and is effective as a buffer at pH 6.8 to 8.2 (pKa 7.55). HEPES has been used in a wide variety of applications, including tissue culture. It is commonly used to buffer cell culture media in air. HEPES finds its usage in in vitro experiments on Mg. It is typically used in cell culture at concentration between 5mM to 30mM.