Food safety and quality: details

Flavouring	Ethyl methyl disulfide
Synonym(s)	Methyldisulfanyl-ethane;2,3-Dithiapentane
Latest JECFA evaluation	2007 (Session 68)
Status of specification	Full
Information required
Chemical name	Ethyl methyl disulfide
JECFA number	1693
CAS number	20333-39-5
FEMA number	4040
COE number
FLAVIS number	12.153
Molecular weight	108.23
Chemical formula	C3H8S2
Physical form/odour	Clear, colourless or pale yellow liquid; Sulfureous aroma
Solubility	Soluble in non-polar solvents; Insoluble in water
Solubility in ethanol	Soluble
Boiling point (°C)	136-138°
Assay min %	80%
Acid value max
Refractive index	1.410-1.418
Specific gravity	1.017-1.027 (20°)
Other requirements	Also contains 7-8% diethyl disulfide and 8-10% dimethyl disulfide
ID Test	HNMR IR MS
Spectrum