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Online Edition: "Specifications for Flavourings"

Flavouring 3-Butenyl isothiocyanate
Latest JECFA evaluation 2008 (Session 69)
Status of specification Full
Chemical name 4-Isothiocyanato-1-butene
JECFA number 1889
CAS number 3386-97-8
FEMA number 4418
COE number
FLAVIS number 12.283
Molecular weight 113.2
Chemical formula C5H7NS
Physical form/odour Colourless liquid; Penetrating aroma
Solubility Very slightly soluble in water; freely soluble in ether
Solubility in ethanol Soluble
Boiling point (°C) 75-77° (14 mm Hg)
Assay min % 97%
Acid value max
Refractive index 1.520-1.526
Specific gravity 0.990-0.996 (20°)
Other requirements
ID Test MS