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67779

Sigma-Aldrich

Methanethiol

purum

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Synonym(s):
Mercaptan C1, Methyl mercaptan
Linear Formula:
CH3SH
CAS Number:
74-93-1
Molecular Weight:
48.11
Beilstein:
1696840
EC Number:
200-822-1
MDL number:
MFCD00004866
UNSPSC Code:
12352100
PubChem Substance ID:
329760678

vapor density

1.66 (vs air)

vapor pressure

1536 mmHg ( 20 °C)

grade

purum

Assay

≥99.0%

expl. lim.

21.8 %

bp

6 °C (lit.)

mp

−123 °C (lit.)

storage temp.

2-8°C

SMILES string

CS

InChI

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

InChI key

LSDPWZHWYPCBBB-UHFFFAOYSA-N

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Packaging

pressure tin with 100 mL (net ~87 g)

Other Notes

Sales restrictions may apply

control valve

Product No.
Description
Pricing

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

WGK

WGK 3

Flash Point(F)

closed cup

Flash Point(C)

closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Regulatory Information

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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
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
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
David Payne et al.
International dental journal, 61 Suppl 3, 60-66 (2011-11-02)
To assess the ability of a 0.1% w/w o-cymen-5-ol/ 0.6% w/w zinc chloride/ sodium fluoride dentifrice to control oral malodour compared to a sodium fluoride control dentifrice. Following baseline measurement of oral volatile sulfur compounds (VSCs), the subjects brushed twice
N Fani et al.
Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy, 103, 11-17 (2012-12-12)
The molecular mechanism of a Schiff base complex ((E)-((E)-2-(3-((E)-((E)-3(mercapto (methylthio) methylene)cyclopentylidene) amino) propylimino) cyclopentylidene) (methylthio) methanethiol) binding to Human Serum Albumin (HSA) was investigated by fluorescence quenching, absorption spectroscopy, molecular docking and molecular dynamics (MD) simulation procedures. The fluorescence emission
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