Dimethyl disulfide

Dimethyl disulfide
IUPAC name (Methyldisulfanyl)methane
Other names Dimethyl disulphide; Methyl disulfide; Methyldisulfide; Dimethyldisulfide; Methyldithiomethane; 2,3-Dithiabutane
Identifiers
Abbreviations	DMDS
CAS number	624-92-0 Y
PubChem	12232
ChemSpider	11731 Y
ChEBI	CHEBI:4608 Y
Jmol-3D images	Image 1
SMILES S(SC)C
InChI InChI=1S/C2H6S2/c1-3-4-2/h1-2H3 Y Key: WQOXQRCZOLPYPM-UHFFFAOYSA-N Y InChI=InChI=1S/C2H6S2/c1-3-4-2/h1-2H3
Properties
Molecular formula	C2H6S2
Molar mass	94.2 g mol−1
Appearance	Colorless to yellowish liquid[1]
Density	1.06 g/cm3[1]
Melting point	-85 °C, 188 K, -121 °F ([1])
Boiling point	110 °C, 383 K, 230 °F ([1])
Solubility in water	2.5 g/L (20 °C)[1]
Hazards
Flash point	15 °C (59 °F)[1]
Autoignition temperature	370 °C (698 °F)[1]
LD50	190 mg/kg (oral, rat)[2]
Y (verify) (what is: Y/N?) Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa)
Infobox references

Dimethyl disulfide (DMDS) is an organic chemical compound with the molecular formula CH₃SSCH₃ which is the simplest disulfide. It is a flammable liquid with an unpleasant odor.

DMDS can be produced by the reaction of methanethiol with sulfur:

2 CH₃SH + S → CH₃SSCH₃ + H₂S

Uses

DMDS is used as a food additive in onion, garlic, cheese, meats, soups, savory flavors, and fruit flavors.^[2]

Industrially, DMDS is used in oil refineries as a sulfiding agent.^[3]

References

1. ^ ^{a b c d e f g} Record in the GESTIS Substance Database from the IFA
2. ^ ^{a b} Dimethyl disulfide, Good Scents Company
3. ^ Dimethyl Disulfide (DMDS), Arkema, Inc.