Food safety and quality: details

Flavouring	trans-2-Hexenal propylene glycol acetal
Synonym(s)
Latest JECFA evaluation	2008 (Session 69)
Status of specification	Full
Information required
Chemical name	4-Methyl-2-(1E)-1-pentenyl-1,3-dioxolane
JECFA number	1801
CAS number	94089-21-1
FEMA number	4272
COE number
FLAVIS number
Molecular weight	156.22
Chemical formula	C9H16O2
Physical form/odour	Liquid; Weak green and fresh aroma
Solubility	Slightly soluble in water; soluble in non-polar solvents
Solubility in ethanol	Soluble
Boiling point (°C)	118-120° (20 mm Hg)
Assay min %	97%
Acid value max	1
Refractive index	1.438-1.444
Specific gravity	0.919-0.926 (20°)
Other requirements
ID Test	HNMR
Spectrum