Food safety and quality: details

Flavouring	(E)-2-Hexenal diethyl acetal
Synonym(s)	(E)-1,1-Diethoxy-2-hexene; Leafaldehyde diethyl acetal
Latest JECFA evaluation	2004 (Session 96)
Status of specification	Full
Information required
Chemical name	(2E)-1,1-Diethoxy-2-hexene
JECFA number	1383
CAS number	67746-30-9
FEMA number	4047
COE number
FLAVIS number	06.031
Molecular weight	172.26
Chemical formula	C10H20O2
Physical form/odour	Colourless liquid / Fruity aroma
Solubility	Soluble in most fixed oils; Insoluble in water
Solubility in ethanol	Soluble
Boiling point (°C)	76-77° (15 mm Hg)
Assay min %	97% (sum of isomers)
Acid value max
Refractive index	1.418-1.426
Specific gravity	0.843-0.849
Other requirements	Isomers: 94-99% (E); 0.4-3.2% (Z)
ID Test	IR MS
Spectrum