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Online Edition: "Specifications for Flavourings"

Flavouring 2-Hexenal
Synonym(s) beta-Propyl acrolein;alpha-beta-Hexylenealdehyde;Leaf aldehyde;2-Hexen-1-al
Latest JECFA evaluation 2004 (Session 63)
Status of specification Full
Chemical name 2-Hexenal
JECFA number 1353
CAS number 6728-26-3
FEMA number 2560
COE number
FLAVIS number 05.189
Molecular weight 98.14
Chemical formula C6H10O
Physical form/odour Pale yellow to colourless oily liquid; Strong fruity, green, vegetable-like aroma
Solubility Soluble in propylene glycol and most fixed oils; Very slightly soluble in water
Solubility in ethanol Soluble
Boiling point (°C) 47° (17mm Hg)
Assay min % 92% (sum of cis/trans isomers)
Acid value max 10
Refractive index 1.443-1.449
Specific gravity 0.841-0.848
Other requirements SC: 2-Hexenoic acid