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295515

Sigma-Aldrich

Methanethiol

98.0%

Synonym(s):

Mercaptan C1, Methyl mercaptan

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About This Item

Linear Formula:
CH3SH
CAS Number:
74-93-1
Molecular Weight:
48.11
Beilstein:
1696840
EC Number:
200-822-1
MDL number:
MFCD00004866
UNSPSC Code:
12142100
PubChem Substance ID:
24857792
NACRES:
NA.22

vapor density

1.66 (vs air)

Quality Level

100

vapor pressure

1536 mmHg ( 20 °C)

Assay

98.0%

expl. lim.

21.8 %

bp

6 °C (lit.)

mp

−123 °C (lit.)

SMILES string

CS

InChI

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

InChI key

LSDPWZHWYPCBBB-UHFFFAOYSA-N

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Application

Methanethiol (Methyl mercaptan) may undergo steam reforming to hydrogen-rich gas over cerium oxide-coated rhodium/aluminum oxide catalyst via the solid-gas reaction under certain operating conditions. This process has potential application in toxic-waste treatment such as removal of methanethiol present in industrial-waste off-gas.

Recommended products

Z148504/Z148512 CGA 180 Regulators OR Z146951 CGA 110 Valve with Z147095 CGA 110 to CGA 180 adapter and Z146986 washer. Also recommended Z562610 Lecture bottle station.

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Signal Word

Danger

Hazard Statements

H220,H280,H331,H410

Hazard Classifications

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

Storage Class Code

2A - Gases

WGK

WGK 3

Flash Point(F)

-0.4 °F - closed cup

Flash Point(C)

-18 °C - closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Certificates of Analysis (COA)

Lot/Batch Number
MKBX2522V
MKBH6309V
MKBH5210V
MKBH5208V
MKBH5207V

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Conversion of poisonous methanethiol to hydrogen-rich gas by chemisorption/reforming over nano-scale CeO2: The use of CeO2 as catalyst coating material.
Laosiripojana N
Applied Catalysis. B, Environmental, 102(1-2), 267-275 (2011)
N J Hayward et al.
Journal of clinical microbiology, 6(3), 195-201 (1977-09-01)
Proteus mirabilis was distinguishable from Escherichia coli and from several other species that may be associated with urinary tract infections when grown in a nutrient medium supplemented with 0.1 M L-methionine by the formation of large amounts of dimethyl disulfide
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
Kazue Yamagishi et al.
Gut, 61(4), 554-561 (2011-08-13)
The mechanisms of cancer cell growth and metastasis are still not entirely understood, especially from the viewpoint of chemical reactions in tumours. Glycolytic metabolism is markedly accelerated in cancer cells, causing the accumulation of glucose (a reducing sugar) and methionine
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Protocols

GC Analysis of a 7-Component Sulfur Gases Mix on Supel-Q™ PLOT after SPME using 75 μm Carboxen/PDMS Fiber

Separation of Sulfur dioxide; Hydrogen sulfide; Carbonyl sulfide; Methanethiol; Ethanethiol; Dimethyl disulfide; Carbon disulfide

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