Food safety and quality: details

Flavouring	alpha-Ionone
Synonym(s)	alpha-Cyclocitrylideneacetone
Latest JECFA evaluation	2001 (Session 57)
Status of specification	Full
Information required
Chemical name	4-(2,6,6-Trimethyl-2-cyclohexenyl)-3-buten-2-one
JECFA number	388
CAS number	127-41-3
FEMA number	2594
COE number	141
FLAVIS number
Molecular weight	192.3
Chemical formula	C13H20O
Physical form/odour	colourless to pale-yellow liquid with a warm, woody, violet-floral odour
Solubility	soluble in alcohol, propylene glycol, most fixed oils; insoluble in glycerol and water
Solubility in ethanol	1 ml in 3 ml 70% alcohol; 1 ml in 10 ml 60% alcohol
Boiling point (°C)	237°
Assay min %	85% (min. 95% sum of isomers)
Acid value max
Refractive index	1.497-1.502
Specific gravity	0.927-0.933
Other requirements
ID Test	IR
Spectrum