Food safety and quality: details

Flavouring	Isophorone
Synonym(s)	1,5,5-Trimethyl-3-oxocyclohexene;Isoacetophoron;1,3,3-Trimethylcylohexen-5-one
Latest JECFA evaluation	2002 (Session 59)
Status of specification	Full
Information required
Chemical name	3,5,5-Tetramethylcyclohex-2-en-1-one
JECFA number	1112
CAS number	78-59-1
FEMA number	3553
COE number	11918
FLAVIS number
Molecular weight	138.21
Chemical formula	C9H14O
Physical form/odour	Clear colourless liquid; peppermint-like odour
Solubility	slightly soluble in water; soluble in ether and acetone
Solubility in ethanol	Miscible at room temperature
Boiling point (°C)	213-215°
Assay min %	97%
Acid value max	1
Refractive index	1.474-1.481
Specific gravity	0.919-0.927
Other requirements
ID Test	NMR
Spectrum