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274380

Sigma-Aldrich

Dimethyl sulfide

anhydrous, ≥99.0%

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Synonym(s):
DMS, Methyl sulfide
Linear Formula:
(CH3)2S
CAS Number:
Molecular Weight:
62.13
Beilstein:
1696847
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.21

grade

anhydrous

Quality Level

vapor density

2.1 (vs air)

vapor pressure

26.24 psi ( 55 °C)
7.79 psi ( 20 °C)

Assay

≥99.0%

form

liquid

autoignition temp.

402 °F

expl. lim.

19.7 %

impurities

<0.003% water
<0.005% water (100 mL pkg)

evapn. residue

<0.0005%

refractive index

n20/D 1.435 (lit.)

bp

38 °C (lit.)

mp

−98 °C (lit.)

solubility

H2O: soluble 7.28 g/L at 20 °C

density

0.846 g/mL at 25 °C (lit.)

SMILES string

CSC

InChI

1S/C2H6S/c1-3-2/h1-2H3

InChI key

QMMFVYPAHWMCMS-UHFFFAOYSA-N

Gene Information

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This Item
471577W27462376048
Dimethyl sulfide anhydrous, &#8805;99.0%

Sigma-Aldrich

274380

Dimethyl sulfide

Dimethyl sulfide &#8805;99%

Sigma-Aldrich

471577

Dimethyl sulfide

Dimethyl sulfide natural, &#8805;99%, FCC, FG

Sigma-Aldrich

W274623

Dimethyl sulfide

Dimethyl sulfide analytical standard

Supelco

76048

Dimethyl sulfide

vapor density

2.1 (vs air)

vapor density

2.1 (vs air)

vapor density

2.1 (vs air)

vapor density

2.1 (vs air)

vapor pressure

26.24 psi ( 55 °C), 7.79 psi ( 20 °C)

vapor pressure

26.24 psi ( 55 °C), 7.79 psi ( 20 °C)

vapor pressure

26.24 psi ( 55 °C), 7.79 psi ( 20 °C)

vapor pressure

26.24 psi ( 55 °C), 7.79 psi ( 20 °C)

assay

≥99.0%

assay

≥99%

assay

≥99%

assay

≥98.0% (GC)

form

liquid

form

-

form

-

form

-

autoignition temp.

402 °F

autoignition temp.

402 °F

autoignition temp.

402 °F

autoignition temp.

402 °F

General description

Dimethyl sulfide is the major biogenic, volatile sulfur compound that is released from the ocean to the atmosphere. It plays a main role in the global sulfur cycle.

Application

Dimethyl sulfide undergoes thiolation reaction with hydrogen sulfide (H2S) in the presence of tungsten-zirconia (WO3/ZrO2) catalyst to form methanethiol.

Pictograms

Flame

Signal Word

Danger

Hazard Statements

Hazard Classifications

Flam. Liq. 2

Storage Class Code

3 - Flammable liquids

WGK

WGK 1

Flash Point(F)

-32.8 °F - closed cup

Flash Point(C)

-36 °C - closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Regulatory Information

危险化学品

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Photooxidation of dimethyl sulfide and dimethyl disulfide. I: Mechanism development
Yin F, et al
Journal of Atmospheric Chemistry, 11(4), 309-364 (1990)
Ingrid Elisia et al.
PloS one, 11(3), e0152538-e0152538 (2016-04-01)
Dimethyl sulfoxide (DMSO) is currently used as an alternative treatment for various inflammatory conditions as well as for cancer. Despite its widespread use, there is a paucity of data regarding its safety and efficacy as well as its mechanism of
Dimethyl sulfide production during natural phytoplanktonic blooms
Nguyen BC, et al.
Marine Chemistry, 24(2), 133-141 (1988)
Thiolation of dimethyl sulfide to methanethiol over WO3/ZrO2 catalysts
Chen S, et al
J. Mol. Catal. A: Chem., 365, 60-65 (2012)
Thiolation of dimethyl sulfide to methanethiol over WO3/ZrO2 catalysts.
Chen S, et al.
J. Mol. Catal. A: Chem., 365, 60-65 (2012)

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