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54457

Sigma-Aldrich

HEPES

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

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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/REAXYS Number:
883043
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.25

grade

for molecular biology

Quality Level

product line

BioUltra

assay

≥99.5% (T)

form

powder

impurities

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

ign. residue

≤0.1% (as SO4)

loss

≤0.5% loss on drying, 110 °C

pH

5.0-6.5 (25 °C, 1 M in H2O)

useful pH range

6.8-8.2

pKa (25 °C)

7.5

solubility

H2O: 1 M at 20 °C, clear, colorless

anion traces

chloride (Cl-): ≤50 mg/kg
sulfate (SO42-): ≤50 mg/kg

cation traces

Al: ≤5 mg/kg
As: ≤0.1 mg/kg
Ba: ≤5 mg/kg
Bi: ≤5 mg/kg
Ca: ≤10 mg/kg
Cd: ≤5 mg/kg
Co: ≤5 mg/kg
Cr: ≤5 mg/kg
Cu: ≤5 mg/kg
Fe: ≤5 mg/kg
K: ≤50 mg/kg
Li: ≤5 mg/kg
Mg: ≤5 mg/kg
Mn: ≤5 mg/kg
Mo: ≤5 mg/kg
Na: ≤50 mg/kg
Ni: ≤5 mg/kg
Pb: ≤5 mg/kg
Sr: ≤5 mg/kg
Zn: ≤5 mg/kg

λ

1 M in H2O

UV absorption

λ: 260 nm Amax: 0.045
λ: 280 nm Amax: 0.035

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
H6147H7523H4034
HEPES BioUltra, for molecular biology, ≥99.5% (T)

54457

HEPES

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

H6147

HEPES

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

H7523

HEPES

Premium Grade
HEPES BioPerformance Certified, ≥99.5% (titration), suitable for cell culture

H4034

HEPES

Premium Grade
grade

for molecular biology

grade

-

grade

-

grade

BioPerformance Certified

Quality Level

200

Quality Level

400

Quality Level

400

Quality Level

400

product line

BioUltra

product line

BioXtra

product line

BioXtra

product line

-

form

powder

form

powder

form

powder

form

crystalline powder

solubility

H2O: 1 M at 20 °C, clear, colorless

solubility

water: 500 mg/mL, clear, colorless

solubility

H2O: 1 M, clear, colorless

solubility

-

General description

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.

Application

HEPES has been used as a component of:
  • DMEM (Dulbecco′s modified Eagle′s medium) used for the cultivation of CHO-GPR40?cells
  • RNA buffer (for gel-filtration chromatography) and transcription buffer (for transcription reaction)
  • Recapture solution to re-capture RNA exosomes from the glycerol gradient
  • ExoI and ExoII extraction solution as well as light and heavy gradient solution for gradient centrifugation
  • 2X HBS buffer that is used in transfection process for the production of recombinant lentivectors

Other Notes

Easily compare specifications for HEPES products with the HEPES specification table.
3′-Terminal labeling of RNA with T4 RNA ligase; Isolation and analysis of nuclear RNA - component of reaction buffer, prehybridization buffer, hybridization buffer.

Storage Class

13 - Non Combustible Solids

wgk_germany

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)


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25G
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MMYOMAG-74K-13

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The correction of the metabolic parameters of msg-induced obesity in rats by 2-[4-(benzyloxy) phenoxy] acetic acid.
Konopelniuk V, et al.
Journal of Nutrition and Intermediary Metabolism, 13, 1-9 (2018)
Optogenetic interrogation of neural circuits: technology for probing mammalian brain structures.
Zhang F, et al.
Nature Protocols, 5(3), 439-439 (2010)
RNA Degradation Assay Using RNA Exosome Complexes, Affinity-purified from HEK-293 Cells.
Domanski M and LaCava J
Bio-protocol, 7(8) (2017)
F. Cobianchi et al.
Methods in Enzymology, 152, 103-103 (1987)
Affinity Purification of the RNA Degradation Complex, the Exosome, from HEK-293 Cells.
Domanski M and LaCava J
Bio-protocol, 7(8) (2017)

Protocols

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