D

Dimethyl sulfide

IUPAC: methylsulfanylmethane

C2H6S Organic Compounds CAS 75-18-3
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Quick Reference
Formula / NotationC2H6S
CAS Number75-18-3
Molecular Weight62.14
Melting Point-144 °F (USCG, 1999)
Boiling Point99 °F at 760 mmHg (USCG, 1999)
Density0.85 at 68 °F (USCG, 1999) - Less dense than water; will float
SolubilitySoluble in alcohol, ether; soluble in water at concentrations below 300 mM
AppearanceDimethyl sulfide appears as a clear colorless to straw colored liquid with a disagreeable odor. Flash point less than 0 °F. Less dense than water and slightly soluble in water. Vapors are heavier ...
Also Known Asmethylsulfanylmethane; Methyl sulfide; 75-18-3; Methane, thiobis-; Methyl thioether; dimethyl sulphide; dimethylsulfide; 2-Thiapropane; Dimethyl thioether; Dimethylsulphide
CategoryOrganic Compounds

What is Dimethyl sulfide?

Dimethyl sulfide is a methyl sulfide in which the sulfur atom is substituted by two methyl groups. It is produced naturally by some marine algae. It has a role as a marine metabolite, an Escherichia coli metabolite, a bacterial xenobiotic metabolite, an EC 3.5.1.4 (amidase) inhibitor and an algal metabolite.

Formula & Notation

C2H6S

IUPAC Name: methylsulfanylmethane

Other Names / Synonyms: methylsulfanylmethane; Methyl sulfide; 75-18-3; Methane, thiobis-; Methyl thioether; dimethyl sulphide; dimethylsulfide; 2-Thiapropane; Dimethyl thioether; Dimethylsulphide

Properties & Characteristics

Appearance: Dimethyl sulfide appears as a clear colorless to straw colored liquid with a disagreeable odor. Flash point less than 0 °F. Less dense than water and slightly soluble in water. Vapors are heavier .... Molecular formula: C2H6S. Molecular weight: 62.14 g/mol. Boiling point: 99 °F at 760 mmHg (USCG, 1999). Melting point: -144 °F (USCG, 1999). Density: 0.85 at 68 °F (USCG, 1999) - Less dense than water; will float. Solubility: Soluble in alcohol, ether; soluble in water at concentrations below 300 mM. Vapor pressure: 502.0 [mmHg]. LogP: 0.9.

Physical Data

PropertyValue
Melting Point-144 °F (USCG, 1999)
Boiling Point99 °F at 760 mmHg (USCG, 1999)
Density0.85 at 68 °F (USCG, 1999) - Less dense than water; will float
Molecular Weight62.14
SolubilitySoluble in alcohol, ether; soluble in water at concentrations below 300 mM
AppearanceDimethyl sulfide appears as a clear colorless to straw colored liquid with a disagreeable odor. Flash point less than 0 °F. Less dense than water and slightly soluble in water. Vapors are heavier ...

Uses & Applications

Used as an industrial feedstock, solvent, pharmaceutical intermediate, flavoring agent, or chemical building block.

Safety Information

Flammable or irritant. Many organic compounds are flammable liquids or vapours. Keep away from ignition sources. Consult SDS for specific hazard data.

Always consult the SDS/MSDS before handling any chemical. This information is for educational purposes only.

Key Facts

Term Dimethyl sulfide
Formula C2H6S
CAS Number 75-18-3
Molecular Weight 62.14
Synonyms methylsulfanylmethane; Methyl sulfide; 75-18-3; Methane, thiobis-; Methyl thioether; dimethyl sulphide; dimethylsulfide; 2-Thiapropane; Dimethyl thioether; Dimethylsulphide

Frequently Asked Questions

Dimethyl sulfide is a methyl sulfide in which the sulfur atom is substituted by two methyl groups. It is produced naturally by some marine algae. It has a role as a marine metabolite, an Escherichia coli metabolite, a bacterial xenobiotic metabolite, an EC 3.5.1.4 (amidase) inhibitor and an algal metabolite.

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Editorial standards: Chemical data is sourced from peer-reviewed literature, CAS Registry, NIST WebBook, and PubChem. Safety information reflects guidance from OSHA, ECHA, and IAEA. For educational purposes only — always consult official SDS documentation and qualified professionals before handling chemicals.