Merck

M6250

Sigma-Aldrich

2-巯基乙醇

≥99.0%

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别名:
β-巯基乙醇, 2-羟乙基硫醇, BME, 硫代二甘醇
线性分子式:
HSCH2CH2OH
CAS号:
分子量:
78.13
Beilstein:
773648
EC 号:
MDL编号:
PubChem化学物质编号:
NACRES:
NA.22

蒸汽密度

2.69 (vs air)

质量水平

蒸汽压

1 mmHg ( 20 °C)

检测方案

≥99.0%

形式

liquid

expl. lim.

18 %

浓度

14.3 M (pure liquid)

折射率

n20/D 1.500 (lit.)

pH值(酸碱度)

4.5-6 (20 °C, 500 g/L)

bp

157 °C (lit.)

密度

1.114 g/mL at 25 °C (lit.)

储存温度

2-8°C

SMILES string

OCCS

InChI

1S/C2H6OS/c3-1-2-4/h3-4H,1-2H2

InChI key

DGVVWUTYPXICAM-UHFFFAOYSA-N

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此商品
97622M314863689
2-Mercaptoethanol ≥99.0%

Sigma-Aldrich

M6250

2-巯基乙醇

-
2-Mercaptoethanol for HPLC derivatization, LiChropur™, ≥99.0% (GC)

Supelco

97622

2-巯基乙醇

-
2-Mercaptoethanol for molecular biology, suitable for electrophoresis, suitable for cell culture, BioReagent, 99% (GC/titration)

Sigma-Aldrich

M3148

2-巯基乙醇

Essential+ Grade
2-Mercaptoethanol BioUltra, for molecular biology, ≥99.0% (GC)

Sigma-Aldrich

63689

2-巯基乙醇

Premium Grade
vapor pressure

1 mmHg ( 20 °C)

vapor pressure

1 mmHg ( 20 °C)

vapor pressure

1 mmHg ( 20 °C)

vapor pressure

1 mmHg ( 20 °C)

assay

≥99.0%

assay

≥99.0% (GC)

assay

99% (GC/titration)

assay

≥99.0% (GC)

form

liquid

form

liquid

form

liquid

form

liquid

expl. lim.

18 %

expl. lim.

18 %

expl. lim.

18 %

expl. lim.

18 %

refractive index

n20/D 1.500 (lit.)

refractive index

n20/D 1.500 (lit.), n20/D 1.500-1.502

refractive index

n20/D 1.500 (lit.)

refractive index

n20/D 1.500 (lit.), n20/D 1.501

一般描述

2-巯基乙醇是一种硫醇化合物,常用作有机反应中的还原剂。

应用

2-巯基乙醇广泛用于延迟溶液中的生物化合物氧化。
BME 适用于在聚丙烯酰胺凝胶电泳前还原蛋白质二硫键,通常用于 SDS-PAGE 的样品缓冲液,浓度为 5%。 切割分子间(亚基之间)二硫键允许蛋白质的亚基在 SDS-PAGE 上独立分离。 切割分子内(亚基内)二硫键可使亚基完全变性,从而使每个肽根据其链长迁移,而不受二级结构的影响。

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说明
价格

警示用语:

Danger

危险分类

Acute Tox. 2 Dermal - Acute Tox. 3 Inhalation - Acute Tox. 3 Oral - Aquatic Acute 1 - Aquatic Chronic 2 - Eye Dam. 1 - Repr. 2 - Skin Irrit. 2 - Skin Sens. 1A - STOT RE 2 Oral

储存分类代码

6.1A - Combustible, acute toxic Cat. 1 and 2 / very toxic hazardous materials

WGK

WGK 3

闪点(°F)

165.2 °F - closed cup

闪点(°C)

74 °C - closed cup

个人防护装备

Faceshields, Gloves, Goggles, type ABEK (EN14387) respirator filter


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实验方案

Overcome challenges in synthesis and disulfide bond formation with protocols for Fmoc solid-phase peptide synthesis of peptides with cysteine and methionine.

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