Food safety and quality: details

Flavouring	(Z)-3- & (E)-2-Hexenyl propionate
Synonym(s)	Green note propionate;Propanoic acid, cis-3, trans-2-hexenyl ester
Latest JECFA evaluation	2004 (Session 63)
Status of specification	Full
Information required
Chemical name	Mixture of Hex-3(cis)-enyl propionate and Hex-2(trans)-enyl propionate
JECFA number	1382
CAS number	33467-74-2
FEMA number	3778
COE number
FLAVIS number	09.564
Molecular weight	156.23
Chemical formula	C9H16O2
Physical form/odour	Clear colourless liquid; Green fruity aroma
Solubility	Insoluble in water
Solubility in ethanol	Soluble
Boiling point (°C)	169-178°
Assay min %	47% of (Z)-3- isomer; 49% of (E)-2- isomer
Acid value max	3
Refractive index	1.458-1.466
Specific gravity	0.857-0.867
Other requirements
ID Test	NMR
Spectrum