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Online Edition: "Specifications for Flavourings"

Flavouring Isopropyl isothiocyanate
Latest JECFA evaluation 2008 (Session 69)
Status of specification Full
Chemical name 2-Isothiocyanatopropane
JECFA number 1888
CAS number 2253-73-8
FEMA number 4425
COE number
FLAVIS number
Molecular weight 101.17
Chemical formula C4H7NS
Physical form/odour Colourless liquid; Penetrating mustard-like aroma
Solubility Very slightly soluble in water; freely soluble in ether
Solubility in ethanol Soluble
Boiling point (°C) 68-70° (67 mm Hg)
Assay min % 95%
Acid value max
Refractive index 1.489-1.497
Specific gravity 0.947-0.955
Other requirements
ID Test MS