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Online Edition: "Specifications for Flavourings"
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Analytical Methods (Volume 4)
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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