Dimethyl sulfide

CAS No. 75-18-3

Formula: C2H6S
Basic Info

Dimethyl sulfide (DMS) or methylthiomethane is an organosulfur compound with the formula (CH3)2S. Dimethyl sulfide is a water-insoluble flammable liquid that boils at 37°C (99°F) and has a characteristic disagreeable odor. It is a component of the smell produced from cooking of certain vegetables, notably maize, cabbage, beetroot and seafoods. It is also an indication of bacterial contamination in malt production and brewing. It is a breakdown product of dimethylsulfoniopropionate (DMSP), and is also produced by the bacterial metabolism of methanethiol.

Formula
C2H6S
Molecular Weight
62.134
Exact Mass
62.019
LogP
0.9792
PSA
25.3
Synonyms

ME2S

Exact-S

methyl monosulfide

2-Thiopropane

methylthiomethane

dimethyl monosulfide

FEMA 2746

Dimethylsulfid

Methane, thiobis-

copper bromide/dimethyl sulfide complex

Thiopropane

dimethylsulfide

dimethyl thioether

2-THIAPROPANE

DMS

thiobis-methan

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Properties
Appearance & Physical State
clear colorless liquid
Density
0.84
Boiling Point
38ºC
Melting Point
-98ºC
Flash Point
-37ºC
Refractive Index
1.4351
Stability
Stable. Incompatible with strong oxidizing agents. Highly flammable - note low boiling point, low flash point, and wide explosion limits. Mixtures with air are potentially explosive. Incompatible with strong oxidizing agents. Use in UK regulated by LPG Reg
Storage Condition
2-8ºC
Vapor Density
2.1 (vs air)
Vapor Pressure
26.24 psi ( 55 °C)
Safety Info
RTECS
PV5075000
Safety Statements
S9-S16-S26-S33
WGK Germany
1
Risk Statements
R11; R22; R36
HS Code
2930909090
RIDADR
UN 1164
Hazard Class
3
Packing Group
II
Hazard Codes
Spectrum
NMR Spectrum 1H NMR : parameter in cyclohexane
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IR Spectrum IR : liquid film
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Mass Spectrum Mass spectrum (electron ionization)
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UV Spectrum UV/Visible spectrum
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Related Compound Information

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