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Online Edition: "Specifications for Flavourings"

Flavouring Isobutyl isothiocyanate
Latest JECFA evaluation 2008 (Session 69)
Status of specification Full
Chemical name 1-Isothiocyanato-2-methylpropane
JECFA number 1886
CAS number 591-82-2
FEMA number 4424
COE number
FLAVIS number
Molecular weight 115.2
Chemical formula C5H9NS
Physical form/odour Colourless to yellow liquid; Green pungent aroma
Solubility Very slightly soluble in water; freely soluble in ether
Solubility in ethanol Soluble
Boiling point (°C) 72-73° (30 mm Hg)
Assay min % 97%
Acid value max
Refractive index 1.491-1.499
Specific gravity 0.935-0.945
Other requirements
ID Test MS