Food safety and quality: details

Flavouring	Isoamyl levulinate
Synonym(s)	Levulinic acid, isopentyl ester;Isopentyl levulinate;Pentanoic acid, 4-oxo-, 3-methylbutyl ester
Latest JECFA evaluation	2010 (Session 73)
Status of specification	Full
Information required
Chemical name	3-methylbutyl 4-oxopentanoate
JECFA number	1972
CAS number	71172-75-3
FEMA number	4481
COE number
FLAVIS number
Molecular weight	186.25
Chemical formula	C10H18O3
Physical form/odour	Clear colourless liquid; Light ethereal carmellic aroma
Solubility	Practically insoluble or insoluble in water
Solubility in ethanol	Soluble
Boiling point (°C)	252-253°
Assay min %	98%
Acid value max	1
Refractive index	1.427-1.433
Specific gravity	0.957-0.963 (20°)
Other requirements
ID Test	HNMR IR MS
Spectrum