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Merck
CN

67779

Methanethiol

purum

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:
Assay:
≥99.0%
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InChI key

LSDPWZHWYPCBBB-UHFFFAOYSA-N

InChI

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

SMILES string

CS

vapor density

1.66 (vs air)

vapor pressure

1536 mmHg ( 20 °C)

grade

purum

assay

≥99.0%

expl. lim.

21.8 %

storage temp.

2-8°C

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Packaging

pressure tin with 100 mL (net ~87 g)

Other Notes

Sales restrictions may apply

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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Toru Takeshita et al.
Scientific reports, 2, 215-215 (2012-02-23)
Both hydrogen sulfide (H2S) and methyl mercaptan (CH(3)SH) are frequently detected in large amounts in malodorous mouth air. We investigated the bacterial composition of saliva of 30 subjects with severe oral malodor exhibiting extreme CH(3)SH/H(2)S ratios (high H(2)S but low
Rima Kassim et al.
Journal of biological inorganic chemistry : JBIC : a publication of the Society of Biological Inorganic Chemistry, 18(3), 333-342 (2013-01-22)
Evaluating the reactivity of the metal-thiolate clusters in metallothionein (MT) is a key step in understanding the biological functions of this protein. The effects of the metal clustering and protein environment on the thiolate reactivity with hydrogen peroxide (H(2)O(2)) were
Ivan Spasojević et al.
Amino acids, 42(6), 2439-2445 (2011-08-11)
The mechanisms of reaction of methionine with hydroxyl radical are not fully understood. Here, we unequivocally show using electron paramagnetic resonance spin-trapping spectroscopy and GC-FID and GC-MS, the presence of specific carbon-, nitrogen- and sulfur-centered radicals as intermediates of this
Michael Hulko et al.
Sensors (Basel, Switzerland), 11(6), 5968-5980 (2011-12-14)
This work is about gas biosensing with a cytochrome c biosensor. Emphasis is put on the analysis of the sensing process and a mathematical model to make predictions about the biosensor response. Reliable predictions about biosensor responses can provide valuable
Metabolism: Nothing to waste.
Haruyuki Atomi
Nature chemical biology, 8(11), 877-878 (2012-10-19)

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