Food safety and quality: details

Flavouring	2-Amyl-5 or 6-keto-1,4-dioxane
Synonym(s)	5(or 6)-Pentyl-1,4-dioxan-2-one
Latest JECFA evaluation	2005 (Session 65)
Status of specification	Full
Information required
Chemical name	5-Pentyl-5 or 6-keto-1,4-dioxane
JECFA number	1485
CAS number	65504-96-3
FEMA number	2076
COE number
FLAVIS number	13.027
Molecular weight	172.22
Chemical formula	C9H16O3
Physical form/odour	Colourless liquid; Fruity-winey aroma
Solubility	Slightly soluble in water
Solubility in ethanol	Soluble
Boiling point (°C)	101-103° (15 mm Hg)
Assay min %	97%
Acid value max
Refractive index	1.480-1.486
Specific gravity	1.288-1.294
Other requirements	[Lactone undergoes ring opening in basic solution]
ID Test	NMR
Spectrum