Food safety and quality: details

Flavouring	8-Decen-5-olide
Synonym(s)	2H-Pyran-2-one, tetrahydro-6-(3-pentenyl)-;8-Decenoic acid, 5-hydroxy-, delta-lactone
Latest JECFA evaluation	2010 (Session 73)
Status of specification	Full
Information required
Chemical name	6-(pent-3-en-1-yl)tetrahydro-2H-pyran-2-one
JECFA number	1994
CAS number	32764-98-0
FEMA number	4441
COE number
FLAVIS number	10.040
Molecular weight	168.23
Chemical formula	C10H16O2
Physical form/odour	Clear colourless to pale yellow liquid; Oily, fruity, floral petal, jasmin, peach, apricot aroma
Solubility	Practically insoluble or insoluble in water
Solubility in ethanol	Soluble
Boiling point (°C)	300°
Assay min %	95%
Acid value max	5
Refractive index	1.470-1.480
Specific gravity	0.975-1.007 (20°)
Other requirements	Mixture of isomers: 90-91% cis, 4-5% trans
ID Test	HNMR IR MS
Spectrum