Food safety and quality: details

Flavouring	p-Menth-1,4(8)-dien-3-one
Synonym(s)	Piperitenone;1-Methyl-4-isopropylidene-1-cyclohexen-3-one
Latest JECFA evaluation	2000 (Session 55)
Status of specification	Full
Information required
Chemical name	3-Methyl-6-(1-methylethylidene)cyclohex-2-en-1-one
JECFA number	757
CAS number	491-09-8
FEMA number	3560
COE number	11189
FLAVIS number
Molecular weight	150.22
Chemical formula	C10H14O
Physical form/odour	Yellow to amber oily liquid, powerful sharp, minty, phenolic odour
Solubility	insoluble in water; soluble in oils
Solubility in ethanol	miscible
Boiling point (°C)	233°
Assay min %	95% (total of isomers)
Acid value max
Refractive index	1.472-1.478
Specific gravity	0.976-0.983
Other requirements
ID Test	MS
Spectrum