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Online Edition: "Specifications for Flavourings"

Flavouring (E,E)-2,4-Heptadienal
Synonym(s) trans,trans-2,4-Heptadienal
Latest JECFA evaluation 2003 (Session 61)
Status of specification Full
Chemical name (2E,4E)-Hepta-2.4-dienal
JECFA number 1179
CAS number 881395
FEMA number 3164
COE number
FLAVIS number 05.084
Molecular weight 110.16
Chemical formula C7H10O
Physical form/odour Slightly yellow liquid; fatty, green aroma
Solubility Soluble in fixed oils; Insoluble in water
Solubility in ethanol soluble
Boiling point (°C) 84° (1 mm Hg)
Assay min % 92%
Acid value max 10
Refractive index 1.478-1.480
Specific gravity 0.822-0.828
Other requirements SC: (E,Z)-2,4-heptadienal, 2,4-heptadienoic acid
ID Test IR