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471577

Sigma-Aldrich

Dimethyl sulfide

≥99%

Synonym(s):

DMS, Methyl sulfide

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About This Item

Linear Formula:
(CH3)2S
CAS Number:
75-18-3
Molecular Weight:
62.13
Beilstein/REAXYS Number:
1696847
EC Number:
200-846-2
MDL number:
MFCD00008562
UNSPSC Code:
12352100
PubChem Substance ID:
57650900

vapor density

2.1 (vs air)

Quality Level

200

vapor pressure

26.24 psi ( 55 °C)
7.79 psi ( 20 °C)

assay

≥99%

autoignition temp.

402 °F

expl. lim.

19.7 %

refractive index

n20/D 1.435 (lit.)

bp

38 °C (lit.)

mp

−98 °C (lit.)

solubility

water: 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

rat ... Maoa(29253) , Maob(25750)

Related Categories

General description

Dimethyl sulfide (DMS) is a biogenic sulfur compound that is released from the ocean to the atmosphere. It forms the main component of the global sulfur cycle. The thermal decomposition behavior of dimethyl sulfide in gas phase has been investigated in a static system at 681-723K. The mechanism of its photochemical oxidation in atmosphere has been described. The rate constant of the gas phase reaction between OH radicals and DMS have been determined by relative rate methods and flash photolysis technique. The differential Raman cross section, σDMS at different excitation wavelengths has been measured. The adsorption of DMS on activated carbons (ACs) has been reported to take place by hydrogen bonding.

Application

  • Characterization of the aroma-active compounds in Xiaokeng green tea by three pretreatment methods combined with gas chromatography-olfactometry (GC-O).: This study identified and characterized the aroma-active compounds in Xiaokeng green tea, highlighting the significant role of dimethyl sulfide as a contributor to its unique aroma profile (Gan et al., 2024).
  • Novel insights into dimethylsulfoniopropionate cleavage by deep subseafloor fungi.: This article provides new insights into the metabolic pathways of deep-sea fungi, focusing on the cleavage of dimethylsulfoniopropionate (DMSP) and subsequent production of dimethyl sulfide, impacting sulfur cycling in marine ecosystems (Liu et al., 2024).
  • Adsorption Mechanism and Regeneration Performance of Calcined Zeolites for Hydrogen Sulfide and Its Application.: The study explores the use of calcined zeolites for the adsorption of hydrogen sulfide, a precursor to dimethyl sulfide, and discusses the material′s regeneration performance for industrial applications (Zha et al., 2024).

pictograms

Flame
GHS02

signalword

Danger

hcodes

H225

Hazard Classifications

Flam. Liq. 2

Storage Class

3 - Flammable liquids

wgk_germany

WGK 1

flash_point_f

-32.8 °F - closed cup

flash_point_c

-36 °C - closed cup

ppe

Eyeshields, Faceshields, Gloves

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The reaction of OH radicals with dimethyl sulfide.
Wallington TJ, et al.
International Journal of Chemical Kinetics, 18(8), 837-846 (1986)
Adsorption of dimethyl sulfide vapors by activated carbons.
Goyal M, et al.
Colloids and Surfaces. A, Physicochemical and Engineering Aspects, 322(1), 164-169 (2008)
The pyrolysis of dimethyl sulfide, kinetics and mechanism.
Shum LGS and Benson SW.
International Journal of Chemical Kinetics, 17(7), 749-761 (1985)
Differential Raman cross section of dimethyl sulfide.
Barletta RE and Roe CH.
Journal of Raman Spectroscopy, 42(1), 117-121 (2011)
Yin F, et al.
Journal of Atmospheric Chemistry, 11(4), 309-364 (1990)
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