Food safety and quality: details

Flavouring	(E,E)-2,4-Heptadienal
Synonym(s)	trans,trans-2,4-Heptadienal
Latest JECFA evaluation	2003 (Session 61)
Status of specification	Full
Information required
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
Spectrum