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Merck
CN

67778

Methanethiol

Synonym(s):

Mercaptan C1, Methyl mercaptan

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About This Item

Linear Formula:
CH3SH
CAS Number:
Molecular Weight:
48.11
EC Number:
200-822-1
UNSPSC Code:
12352100
PubChem Substance ID:
Beilstein/REAXYS Number:
1696840
MDL number:
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vapor density

1.66 (vs air)

Quality Level

vapor pressure

1536 mmHg ( 20 °C)

expl. lim.

21.8 %

bp

6 °C (lit.)

mp

−123 °C (lit.)

functional group

thiol

storage temp.

2-8°C

SMILES string

CS

InChI

1S/CH4S/c1-2/h2H,1H3

InChI key

LSDPWZHWYPCBBB-UHFFFAOYSA-N

Packaging

pressure tin with 25 mL (net 22 g)

Other Notes

Sales restrictions may apply


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signalword

Danger

Hazard Classifications

Acute Tox. 3 Inhalation - Aquatic Acute 1 - Aquatic Chronic 1 - Flam. Gas 1A - Press. Gas Liquefied gas

Storage Class

2A - Gases

wgk

WGK 3

flash_point_f

-0.4 °F - closed cup

flash_point_c

-18 °C - closed cup

ppe

Eyeshields, Faceshields, Gloves

Regulatory Information

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K Yaegaki et al.
Journal of periodontal research, 27(4 Pt 1), 233-238 (1992-07-01)
Volatile sulfur compounds (VSC) in mouth air were estimated by gas chromatography. The amount of VSC and the methyl mercaptan/hydrogen sulfide ratio were significantly increased in patients with periodontal disease. These two parameters also increased in proportion to the bleeding
Govindan Muthuraman et al.
Journal of hazardous materials, 193, 257-263 (2011-08-16)
In this study, an electrocatalytic wet scrubbing process was developed for the simultaneous removal of synthetic odorous gases namely, methyl mercaptan (CH(3)SH) and hydrogen sulfide (H(2)S). The initial process consists of the absorption of CH(3)SH and H(2)S gases by an
Ari Zeida et al.
Chemical research in toxicology, 25(3), 741-746 (2012-02-07)
The oxidation of cellular thiol-containing compounds, such as glutathione and protein Cys residues, is considered to play an important role in many biological processes. Among possible oxidants, hydrogen peroxide (H(2)O(2)) is known to be produced in many cell types as



Global Trade Item Number

SKUGTIN
67778-1EA04061832420448