Merck
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H7523

Sigma-Aldrich

HEPES

BioXtra, pH 5.0-6.5 (1 M in H2O), ≥99.5% (titration)

Synonym(s):
4-(2-Hydroxyethyl)piperazine-1-ethanesulfonic acid, N-(2-Hydroxyethyl)piperazine-N′-(2-ethanesulfonic acid)
Empirical Formula (Hill Notation):
C8H18N2O4S
CAS Number:
Molecular Weight:
238.30
Beilstein:
883043
Número de EC:
Número MDL:
ID de la sustancia en PubChem:

Línea del producto

BioXtra

Nivel de calidad

ensayo

≥99.5% (titration)

formulario

powder

impurezas

Insoluble matter, passes filter test

residuo de ign. (900 °C)

≤0.1% (as SO4)

pérdida

≤1.0% loss on drying, 110°C

pH

5.0-6.5 (1 M in H2O)

useful pH range

6.8-8.2

pKa (25 °C)

7.5

solubilidad

H2O: 1 M, clear, colorless

trazas de anión

chloride (Cl-): ≤0.05%

trazas de catión

Al: ≤0.0005%
As: ≤0.0001%
Ba: ≤0.0005%
Bi: ≤0.0005%
Ca: ≤0.001%
Cd: ≤0.0005%
Co: ≤0.0005%
Cr: ≤0.0005%
Cu: ≤0.0005%
Fe: ≤0.0005%
K: ≤0.005%
Li: ≤0.0005%
Mg: ≤0.0005%
Mn: ≤0.0005%
Mo: ≤0.0005%
Na: ≤0.005%
Ni: ≤0.0005%
Pb: ≤0.0005%
Sr: ≤0.0005%
Zn: ≤0.0005%

absorción

≤0.035 at 280 in H2O at 1 M
≤0.045 at 260 in H2O at 1 M

application(s)

diagnostic assay manufacturing

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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This Item
H23830PHR142854457
HEPES BioXtra, pH 5.0-6.5 (1 M in H2O), ≥99.5% (titration)

Sigma-Aldrich

H7523

HEPES

HEPES reagent grade, ≥99% (titration), crystalline

Sigma-Aldrich

H23830

HEPES

HEPES Pharmaceutical Secondary Standard; Certified Reference Material

Supelco

PHR1428

HEPES

HEPES BioUltra, for molecular biology, ≥99.5% (T)

Sigma-Aldrich

54457

HEPES

product line

BioXtra

product line

-

product line

-

product line

BioUltra

assay

≥99.5% (titration)

assay

≥99% (titration)

assay

-

assay

≥99.5% (T)

form

powder

form

crystalline

form

-

form

powder

impurities

Insoluble matter, passes filter test

impurities

-

impurities

-

impurities

DNases, none detected, RNases, none detected, insoluble matter, passes filter test, phosphatases, none detected, proteases, none detected

pH

5.0-6.5 (1 M in H2O)

pH

-

pH

5.0-6.5 (25 °C, 238 g/L)

pH

5.0-6.5 (25 °C, 1 M in H2O)

solubility

H2O: 1 M, clear, colorless

solubility

-

solubility

-

solubility

H2O: 1 M at 20 °C, clear, colorless

Descripción general

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. 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.

Aplicación

HEPES has been used:
  • As a component of homogenisation buffer used in protein sample preparation
  • To neutralise PRP (platelet-rich plasma) solution as part of PRP preparation
  • As a component in 2X PBS buffer, which is used in phosphate calcium transfection in cell line preparation
  • As a supplement in RPMI 1640 medium used to culture human umbilical vein endothelial cells (HUVEC) and in M199 complete medium for ex-vivo treatment of testicular tissue.

Otras notas

Easily compare specifications for HEPES products with the HEPES specification table.

Código de clase de almacenamiento

13 - Non Combustible Solids

WGK

WGK 1

Punto de inflamabilidad F

Not applicable

Punto de inflamabilidad C

Not applicable

Equipo de protección personal

Eyeshields, Gloves, type N95 (US)

Certificate of Analysis

Enter Lot Number to search for Certificate of Analysis (COA).

Certificate of Origin

Enter Lot Number to search for Certificate of Origin (COO).

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