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Online Edition: "Specifications for Flavourings"

Flavouring 2-Butyl isothiocyanate
Latest JECFA evaluation 2008 (Session 69)
Status of specification Full
Chemical name 2-Isothiocyanatobutane
JECFA number 1890
CAS number 4426-79-3
FEMA number 4419
COE number
FLAVIS number
Molecular weight 115.2
Chemical formula C5H9NS
Physical form/odour Colourless to yellow liquid; Sharp green slightly irritating aroma
Solubility Very slightly soluble in water; freely soluble in ether
Solubility in ethanol Soluble
Boiling point (°C) 69-70° (27 mm Hg)
Assay min % 97%
Acid value max
Refractive index 1.490-1.497
Specific gravity 0.938-0.946
Other requirements
ID Test MS