Food safety and quality: details

Flavouring	(E)-7-Methyl-3-octen-2-one
Synonym(s)	trans-7-Methyl-3-octen-2-one
Latest JECFA evaluation	2002 (Session 59)
Status of specification	Full
Information required
Chemical name	(E)-7-Methyloct-3-en-2-one
JECFA number	1135
CAS number	33046-81-0
FEMA number	3868
COE number
FLAVIS number
Molecular weight	140.2
Chemical formula	C9H16O
Physical form/odour	Colourless liquid; fruity-floral aroma
Solubility	slightly soluble in water; soluble in oils
Solubility in ethanol	Miscible at room temperature
Boiling point (°C)	198°
Assay min %	94%
Acid value max
Refractive index	1.446-1.451
Specific gravity	0.838-0.847
Other requirements	SC: 7-Methyl-4-octen-2-one; 5,6-Dimethyl-3-hepten-2-one; 3-Nonen-2-one
ID Test	MS IR NMR
Spectrum