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Online Edition: "Specifications for Flavourings"

Flavouring Propyl disulfide
Synonym(s) 1-Propyl disulfide;Di-n-propyl disulfide
Latest JECFA evaluation 2002 (Session 59)
Status of specification Full
Chemical name Dipropyl disulfide
JECFA number 566
CAS number 629-19-6
FEMA number 3228
COE number 540
FLAVIS number
Molecular weight 150.3
Chemical formula C6H14S2
Physical form/odour colourless to pale yellowish liquid with poor tenacity; pungent sulfur-like odour of onion or garlic
Solubility insoluble in water; soluble in ethyl alcohol and oil
Solubility in ethanol
Boiling point (°C) 193.5-195°; 99° (40 mm Hg)
Assay min % 98%
Acid value max
Refractive index 1.495-1.500
Specific gravity 0.950-0.960
Other requirements
ID Test IR