Food safety and quality: details

Flavouring	Ionone
Synonym(s)
Latest JECFA evaluation	2002 (Session 59)
Status of specification	Full
Information required
Chemical name	4-(2,2-Dimethyl-6-methylenecyclohexyl)-3-buten-2-one
JECFA number	390
CAS number	79-76-5
FEMA number	3175
COE number
FLAVIS number
Molecular weight	192.3
Chemical formula	C13H20O
Physical form/odour	colourless to pale yellow liquid
Solubility
Solubility in ethanol
Boiling point (°C)	125° (10 mmHg)
Assay min %	95%
Acid value max
Refractive index	1.496-1.502 (25°)
Specific gravity	0.932-0.935 (20°)
Other requirements	[<2% beta-ionone]
ID Test	HNMR, MS
Spectrum