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Merck
CN

H8651

HEPES sodium salt

BioXtra, ≥99.0% (titration)

Synonym(s):

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

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About This Item

Empirical Formula (Hill Notation):
C8H17N2NaO4S
CAS Number:
75277-39-3
Molecular Weight:
260.29
NACRES:
NA.25
PubChem Substance ID:
24895527
UNSPSC Code:
12161700
EC Number:
278-169-7
MDL number:
MFCD00036463

Key Documents

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product line

BioXtra

assay

≥99.0% (titration)

form

powder

impurities

≤0.005% Phosphorus (P), ≤0.1% Insoluble matter

pH

10.0-12.0 (1 M in H2O)

useful pH range

6.8-8.2

pKa (25 °C)

7.5

solubility

H2O: 1 M, clear, colorless

anion traces

chloride (Cl-): ≤0.05%, sulfate (SO42-): ≤0.05%

cation traces

Al: ≤0.0005%, Ca: ≤0.0005%, Cu: ≤0.0005%, Fe: ≤0.0005%, K: ≤0.005%, Mg: ≤0.0005%, NH4+: ≤0.05%, Pb: ≤0.001%, Zn: ≤0.0005%

absorption

≤0.2 at 260 in H2O at 1 M, ≤0.2 at 280 in H2O at 1 M

application(s)

diagnostic assay manufacturing

SMILES string

[Na+].OCCN1CCN(CC1)CCS([O-])(=O)=O

InChI

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

InChI key

RDZTWEVXRGYCFV-UHFFFAOYSA-M

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General description

HEPES is a general-purpose zwitterionic buffer which does not bind magnesium, calcium, manganese(II) or copper(II) ions. HEPES has been classified as Good′s buffer by Dr. Norman Good and his colleagues in 1966. It is zwitterionic at biological pH and is most effective in the pH range of 6.8 to 8.2.

Application

HEPES sodium salt solution is suitable for cell culture studies. It may be used in the preparation of buffer solution of HEPES. It may be used as buffer during the phosphorylation assays in permeabilized fibroblasts. It may be used to compose a complex dialysis buffer, used in the determination of free thyroxin in serum by radioimmunoassay.

Other Notes

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

Storage Class

11 - Combustible Solids

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)

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Certificates of Analysis (COA)

Lot/Batch Number
SLBN1373V
SLBQ9422V
SLBK6788V
SLBP1463V
SLBM2559V

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C Estrada et al.
The Biochemical journal, 326 ( Pt 2), 369-376 (1997-09-18)
Although it has been demonstrated that NO inhibits the proliferation of different cell types, the mechanisms of its anti-mitotic action are not well understood. In this work we have studied the possible interaction of NO with the epidermal growth factor
Hydrogen ion buffers for biological research.
Good NE, et al.
BioChemistry: An Indian Journal, 5, 467-477 (1996)
I J Chopra et al.
Thyroid : official journal of the American Thyroid Association, 6(4), 255-259 (1996-08-01)
We have devised a practical, sensitive, and reliable assay for measurement of free T3 concentration in serum. The assay employs a convenient and disposable plastic equilibrium dialysis cell and a buffer that resembles the in vivo biochemical environment (Nelson JC
Peng Yang
Macromolecular bioscience, 12(8), 1053-1059 (2012-06-19)
When lysozyme is dissolved in a neutral HEPES buffer solution (pH = 7.4) with 0.001-0.050 M TCEP added, a fast phase transition process occurs and the resulting novel fiber-like hierarchical supramolecular assemblies made by primary spherical-particle aggregation can function as a "superglue"
Jihye Park et al.
The Analyst, 137(19), 4411-4414 (2012-08-07)
We have developed a quickly responsive, and specific fluorescent assay for the detection of Au(III) on the basis of the formation of gold nanoparticles in the presence of HEPES, which cleave the C-I bond of I-BODIPY 1 to yield the
View All Related Papers

Related Content

HEPES Sodium Salt Specification Comparison

HEPES Sodium Salt Specification Comparison

Global Trade Item Number

SKUGTIN
H8651-500G04061833811092
H8651-25G04061833810989
H8651-100G04061833810934

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