Food safety and quality: details

Flavouring	6,10-Dimethyl-5,9-undecadien-2-one
Synonym(s)	Geranylacetone;2,6-Dimethyl-2,6-undecadien-10-one
Latest JECFA evaluation	2016 (Session 82)
Status of specification	Full
Information required
Chemical name	6,10-Dimethylundeca-5,9-dien-2-one
JECFA number	1122
CAS number	689-67-8
FEMA number	3542
COE number	11088
FLAVIS number	07.123
Molecular weight	194.32
Chemical formula	C13H22O
Physical form/odour	Colourless slightly yellow liquid; fresh floral but penetrating sweet-rosey aroma
Solubility	slightly soluble in water; soluble in oil
Solubility in ethanol	sparingly soluble
Boiling point (°C)	247°
Assay min %	95% (sum of isomers)
Acid value max	5
Refractive index	1.462-1.472
Specific gravity	0.861-0.873
Other requirements	Isomeric composition: Z: 37-48%; E: 52-62%
ID Test	NMR
Spectrum