Food safety and quality: details

Flavouring	Diallyl polysulfide
Synonym(s)	2-Propenyl polysulfides
Latest JECFA evaluation	2000 (Session 55)
Status of specification	Full
Information required
Chemical name	Mixture of diallyl di-, tri-, tetra-, and pentasulfides
JECFA number	588
CAS number	72869-75-1
FEMA number	3533
COE number	11912
FLAVIS number
Molecular weight
Chemical formula	C6H10S2
Physical form/odour	pale yellow liquid with strong garlic-like odour
Solubility	insoluble in water; slightly soluble in alcohol; miscible in oil
Solubility in ethanol
Boiling point (°C)	68° (15 mm Hg)
Assay min %	95%
Acid value max
Refractive index	1.643-1.653
Specific gravity	1.220 (20°)
Other requirements	allyl disulfides 2-10%; allyl trisulfides 20-30%; allyl tetrasulfides 30-40%; allyl pentasulfides 30-40%; the number of S atoms in the chemical formula varies from 2 to 5
ID Test	IR, HNMR
Spectrum