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Merck

H0527

Sigma-Aldrich

HEPES potassium salt

≥99.5% (titration)

Sinónimos:

Piperazineethanesulfonic acid, 4-(2-hydroxyethyl)-monopotassium salt, 4-(2-Hydroxyethyl)piperazine-1-ethanesulfonic acid potassium salt, N-(2-Hydroxyethyl)piperazine-N′-(2-ethanesulfonic acid) potassium salt

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About This Item

Fórmula empírica (notación de Hill):
C8H17KN2O4S
Número de CAS:
Peso molecular:
276.39
MDL number:
UNSPSC Code:
12161700
PubChem Substance ID:
NACRES:
NA.25

assay

≥99.5% (titration)

form

powder

useful pH range

6.8-8.2

pKa 

7.5

solubility

water: 0.5 g/mL, clear, colorless

SMILES string

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

InChI

1S/C8H18N2O4S.K/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

KWURIFKZTJGMFD-UHFFFAOYSA-M

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General description

HEPES (4-(2-Hydroxyethyl)piperazine-1-ethanesulfonic acid) is a widely used Good’s buffer in biochemical and biological research applications. As a zwitterionic buffer, it stabilizes the pH of the solution even when small amounts of acid or base are added.

Application

HEPES potassium salt has been used as a buffering agent in nanopore fabrication and electrolyte preparations. It has also been used as a component of cell lysis buffer.

Storage Class

11 - Combustible Solids

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)


Certificados de análisis (COA)

Busque Certificados de análisis (COA) introduciendo el número de lote del producto. Los números de lote se encuentran en la etiqueta del producto después de las palabras «Lot» o «Batch»

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Determining the location of an Arabidopsis chloroplast protein using in vitro import followed by fractionation and alkaline extraction
Chu CC and Li HM
Methods in Molecular Biology (2011)
Equilibrium studies, synthesis and characterisation of zwitterionic buffer (HEPES and HEPPS) dimethyltin (IV) complexes
Mohamed M
Main Group Chemistry, 63-84 (2007)
Complexation of copper by zwitterionic aminosulfonic (good) buffers
Mash HE, et al.
Analytical Chemistry (2003)
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Electrophoresis, 43(5-6), 785-792 (2022-01-13)
Electrolyte chemistry plays an important role in the transport properties of analytes through nanopores. Here, we report the translocation properties of the protein human serum transferrin (hSTf) in asymmetric LiCl salt concentrations with either positive (Ctrans /Ccis < 1) or
Jugal Saharia et al.
RSC advances, 11(39), 24398-24409 (2021-08-07)
Nanopore probing of molecular level transport of proteins is strongly influenced by electrolyte type, concentration, and solution pH. As a result, electrolyte chemistry and applied voltage are critical for protein transport and impact, for example, capture rate (C R), transport

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