Food safety and quality: details

Flavouring	9-Octadecenal
Synonym(s)	Olealdehyde;Elialdehyde;Octadecenyl aldehyde;Oleic aldehyde
Latest JECFA evaluation	2007 (Session 68)
Status of specification	Full
Information required
Chemical name	9-Octadecenal
JECFA number	1641
CAS number	5090-41-5
FEMA number	4059
COE number
FLAVIS number	05.203
Molecular weight	266.47
Chemical formula	C18H34O
Physical form/odour	Colourless liquid; Fatty aroma
Solubility	Soluble in hexane and diethyl ether; insoluble in water
Solubility in ethanol	Soluble
Boiling point (°C)	352-367°
Assay min %	94% (sum of cis and trans isomers)
Acid value max
Refractive index	1.448-1.458
Specific gravity	0.837-0.845
Other requirements	Also contains 3-5% octadecenal
ID Test	HNMR IR MS
Spectrum