Merck
  • 391333
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391333

Millipore

HEPES,钠盐,ULTROL®

A zwitterionic N-substituted aminosulfonic acid buffer. Useful in the pH 6.8-8.2 range. Has a pKa of 7.55 at 25°C. Absorbance (1.0 mM, H2O, 260 nm):0.10.

Synonym(s):
N-2-Hydroxyethylpiperazine-Nʹ-2-ethanesulfonic Acid, Na
Empirical Formula (Hill Notation):
C8H17N2O4S · Na
CAS Number:
Molecular Weight:
260.29

质量水平

测定

≥99% dry basis (titration)

形式

solid

manufacturer/tradename

Calbiochem®

储存条件

OK to freeze
desiccated (hygroscopic)

颜色

white

pKa (20 °C)

7.6

溶解性

water: 1.0 M

痕量阴离子

chloride (Cl-): <0.01%
sulfate (SO42-): <0.05%

痕量阳离子

heavy metals: <1 ppm

运输

ambient

储存温度

15-25°C

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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assay

≥99% dry basis (titration)

assay

-

assay

≥99.0% (titration)

assay

≥99.0% (titration)

form

solid

form

powder

form

powder

form

powder

storage condition

OK to freeze, desiccated (hygroscopic)

storage condition

-

storage condition

-

storage condition

-

color

white

color

-

color

-

color

-

pKa (20 °C)

7.6

pKa (20 °C)

-

pKa (20 °C)

-

pKa (20 °C)

-

solubility

water: 1.0 M

solubility

-

solubility

H2O: 1 M, clear, colorless

solubility

water: 0.1 M, clear, colorless

一般描述

两性离子N-取代氨基磺酸缓冲液。在pH值为6.8-8.2的范围内有用。在 25°C 下的 pKa 为7.55。
两性离子N-取代氨基磺酸缓冲液(吸光度:<0.10,在260 nm处,1.0 mM,H2O)。在6.0-8.5的pH范围内有效。在 20°C 下的 pKa 为7.6。
吸光度(1.0 mM,H2O,260 nm):<0.10。

警告

毒性:标准处理(A)

法律信息

CALBIOCHEM is a registered trademark of Merck KGaA, Darmstadt, Germany
ULTROL is a registered trademark of Merck KGaA, Darmstadt, Germany

储存分类代码

11 - Combustible Solids

WGK

WGK 3

闪点(F)

Not applicable

闪点(C)

Not applicable

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