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Online Edition: "Specifications for Flavourings"

Flavouring 2-Undecenal
Synonym(s) 2-Undecen-1-al;Undecen-2-al;Undecylenic aldehyde;3-Octylacrolein
Latest JECFA evaluation 2004 (Session 63)
Status of specification Full
Chemical name 2-Undecenal
JECFA number 1366
CAS number 2463-77-6
FEMA number 3423
COE number
FLAVIS number 05.109
Molecular weight 168.27
Chemical formula C11H20O
Physical form/odour Colourless to very pale straw coloured liquid; Fresh, fruity, orange peel aroma
Solubility Soluble in oils; Insoluble in water
Solubility in ethanol Soluble
Boiling point (°C) 115° (10 mm Hg)
Assay min % 98% (sum of cis/trans isomers)
Acid value max 6
Refractive index 1.452-1.459
Specific gravity 0.837-0.847
Other requirements