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MilliporeSigma

19-1335

2-Mercaptoethanol

≥99.0%

Synonym(s):

β-Mercaptoethanol, 2-Hydroxyethylmercaptan, BME, Thioethylene glycol

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About This Item

Linear Formula:
HSCH2CH2OH
CAS Number:
60-24-2
Molecular Weight:
78.13
Beilstein/REAXYS Number:
773648
EC Number:
200-464-6
MDL number:
MFCD00004890
UNSPSC Code:
12161504
PubChem Substance ID:
329751822
Assay:
≥99.0%
Bp:
157 °C (lit.)
Vapor pressure:
1 mmHg ( 20 °C)

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vapor density

2.69 (vs air)

vapor pressure

1 mmHg ( 20 °C)

assay

≥99.0%

form

liquid

expl. lim.

18 %

availability

available only in Japan

concentration

14.3 M (pure liquid)

dilution

(for analytical testing)

refractive index

n20/D 1.500 (lit.)

pH

4.5-6 (20 °C, 500 g/L)

bp

157 °C (lit.)

density

1.114 g/mL at 25 °C (lit.)

SMILES string

OCCS

InChI

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

Inchi Key

DGVVWUTYPXICAM-UHFFFAOYSA-N

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1 of 4

This Item
M625019-133063689
2-Mercaptoethanol ≥99.0%

Sigma-Aldrich

19-1335

2-Mercaptoethanol

2-Mercaptoethanol ≥99.0%

Sigma-Aldrich

M6250

2-Mercaptoethanol

2-Mercaptoethanol SAJ special grade, ≥99.0%

Sigma-Aldrich

19-1330

2-Mercaptoethanol

2-Mercaptoethanol BioUltra, Molecular Biology, ≥99.0% (GC)

Sigma-Aldrich

63689

2-Mercaptoethanol

assay

≥99.0%

assay

≥99.0%

assay

≥99.0%

assay

≥99.0% (GC)

form

liquid

form

liquid

form

liquid

form

liquid

pH

4.5-6 (20 °C, 500 g/L)

pH

4.5-6 (20 °C, 500 g/L)

pH

4.5-6 (20 °C, 500 g/L)

pH

4.5-6 (20 °C, 500 g/L)

density

1.114 g/mL at 25 °C (lit.)

density

1.114 g/mL at 25 °C (lit.)

density

1.114 g/mL at 25 °C (lit.)

density

1.114 g/mL at 25 °C (lit.)

vapor density

2.69 (vs air)

vapor density

2.69 (vs air)

vapor density

2.69 (vs air)

vapor density

2.69 (vs air)

refractive index

n20/D 1.500 (lit.)

refractive index

n20/D 1.500 (lit.)

refractive index

n20/D 1.500 (lit.)

refractive index

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

Application

BME is suitable for reducing protein disulfide bonds prior to polyacrylamide gel electrophoresis and is usually included in a sample buffer for SDS-PAGE at a concentration of 5%. Cleaving intermolecular (between subunits) disulfide bonds allows the subunits of a protein to separate independently on SDS-PAGE. Cleaving intramolecular (within subunit) disulfide bonds allows the subunits to become completely denatured so that each peptide migrates according to its chain length with no influence due to secondary structure.
for biological purposes

signalword

Danger

Hazard Classifications

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

target_organs

Liver,Heart

Storage Class

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

wgk_germany

WGK 3

flash_point_f

165.2 °F - closed cup

flash_point_c

74 °C - closed cup

ppe

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

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Certificates of Analysis (COA)

Lot/Batch Number
A2388
A4247
A3934
A0562
A8467

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