Food safety and quality: details

Flavouring	Linoleic and linolenic acid (mixture)
Synonym(s)
Latest JECFA evaluation	2003 (Session 61)
Status of specification	Full
Information required
Chemical name	(9Z,12Z)-Octadeca-9,12-dienoic acid and Octadeca-9,12,15-trienoic acid
JECFA number	332
CAS number	60-33-3
FEMA number	3380
COE number	694
FLAVIS number
Molecular weight	280.45
Chemical formula	C18H32O2
Physical form/odour	colourless to pale yellow oily liquid
Solubility	soluble in ether, alcohol; miscible with dimethylformamide, fat solvents, oils; insoluble in water
Solubility in ethanol
Boiling point (°C)	229° (16 mm Hg)
Assay min %	60%
Acid value max
Refractive index	1.469-1.473
Specific gravity	0.898-0.904
Other requirements	mp -5°; Pb: <=10 mg/kg; Iodine Value: 145-160; Residue on Ignition: <= 0.01%; Saponification Value: 194-202; Unsaponifiable Matter: <= 2.0%; Water: <=0.5%; SC: stearic, oleic and palmitic acids
ID Test	IR, NMR
Spectrum