Food safety and quality: details

Flavouring	Butyl propyl disulfide
Synonym(s)	4,5-Dithianonane;1-Propyldisulfanylbutane
Latest JECFA evaluation	2010 (Session 73)
Status of specification	Full
Information required
Chemical name	1-butyl-2-propyldisulfane
JECFA number	1932
CAS number	72437-64-0
FEMA number	4577
COE number
FLAVIS number
Molecular weight	164.33
Chemical formula	C7H16S2
Physical form/odour	Clear colourless to pale yellow liquid; Sulphureous aroma
Solubility	Practically insoluble or insoluble in water
Solubility in ethanol	Soluble
Boiling point (°C)	89-90° (10 mm Hg)
Assay min %	51%
Acid value max
Refractive index	1.490-1.500
Specific gravity	0.945-0.955 (20°)
Other requirements	SC: 24-25% Dipropyl disulfide; 23-24% Dibutyl disulfide
ID Test	MS
Spectrum