Food safety and quality: details

Flavouring	Butyl ethyl disulfide
Synonym(s)	1-Ethyldisulfanyl-butane;3,4-Dithiaoctane
Latest JECFA evaluation	2007 (Session 68)
Status of specification	Full
Information required
Chemical name	Butyl ethyl disulfide
JECFA number	1698
CAS number	63986-03-8
FEMA number	4027
COE number
FLAVIS number	12.254
Molecular weight	150.31
Chemical formula	C6H14S2
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)	198-202°
Assay min %	90%
Acid value max
Refractive index	1.492-1.502
Specific gravity	0.954-0.964 (20°)
Other requirements	Also contains 2-3% diethyl disulfide and 5-6% dibutyl disulfide
ID Test	CNMR HNMR IR MS
Spectrum