Food safety and quality: details

Flavouring	trans-2-Hexenal glyceryl acetal
Synonym(s)	2-(1E)-1-Pentenyl-1,3-dioxolane-4-methanol
Latest JECFA evaluation	2008 (Session 69)
Status of specification	Full
Information required
Chemical name	(+)2-(1E)-1-Pentenyl-1,3-dioxolane-4-methanol;(-)2-(1E)-Pentenyl-1,3-dioxolane-4-methanol;(+)2-(1E)-Pentenyl-1,3-dioxan-5-ol;(-)2-(1E)-Pentenyl-1,3-dioxan-5-ol
JECFA number	1800
CAS number	214220-85-6;897630-96-5;897672-50-3;897672-51-4
FEMA number	4273
COE number
FLAVIS number
Molecular weight	190.24
Chemical formula	C9H16O3
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)	241-246°
Assay min %	86% (mixture of isomers)
Acid value max	1
Refractive index	1.464-1.474
Specific gravity	1.037-1.048 (20°)
Other requirements	(+)2-(1E)-1-Pentenyl-1,3-dioxolane-4-methanol 26%; (+)2-(1E)-Pentenyl-1,3-dioxan-5-ol 22%; (-)2-(1E)-Pentenyl-1,3-dioxan-5-ol 22%; (-)2-(1E)-Pentenyl-1,3-dioxolane-4-methanol 16% SC: 3-Hexenal glyceryl acetal 8%; Hexanal glyceryl acetal 1%
ID Test	HNMR
Spectrum