Food safety and quality: details

Flavouring	Nootkatone
Synonym(s)	4,4a,5,6,7,8-Hexahydro-6-iso-propenyl-4,4a-dimethyl-2(3H)-naphthalenone
Latest JECFA evaluation	2004 (Session 63)
Status of specification	Full
Information required
Chemical name	4,4a,5,6,7,8-Hexahydro-4,4a-dimethyl-6-(1-methylene-ethyl)-2(3H)-naphthalenone
JECFA number	1398
CAS number	4674-50-4
FEMA number	3166
COE number
FLAVIS number	07.089
Molecular weight	218.35
Chemical formula	C15H22O
Physical form/odour	Colourless to pale yellow or orange coloured oily liquid; Powerful fruity sweet, citrusy, grapefruit peel oil like aroma
Solubility	Soluble in oils; Slightly soluble in water
Solubility in ethanol	Soluble
Boiling point (°C)	73-103° (0.8 mm Hg)
Assay min %	93%
Acid value max	3
Refractive index	1.510-1.523
Specific gravity	1.003-1.032
Other requirements	SC: Dihydronootkatone
ID Test	NMR
Spectrum