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Online Edition: "Specifications for Flavourings"

Flavouring 3-Butylidenephthalide
Synonym(s) 3-n-Butylidene-phthalide;n-Butylidenephthalide;Ligusticum lactone
Latest JECFA evaluation 2003 (Session 61)
Status of specification Full
Chemical name 3-Butylidene-1(3H)-isobenzofuranone
JECFA number 1170
CAS number 551-08-6
FEMA number 3333
COE number
FLAVIS number 10.024
Molecular weight 188.23
Chemical formula C12H12O2
Physical form/odour Yellow liquid; pervasive warm spicy aroma
Solubility Insoluble in water; soluble in oils
Solubility in ethanol soluble
Boiling point (°C) 114-116° (0.05 mm Hg)
Assay min % 99%
Acid value max 1
Refractive index 1.554-1.559
Specific gravity 1.098-1.103
Other requirements