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Online Edition: "Specifications for Flavourings"

Flavouring Ethyl levulinate
Synonym(s) Ethyl acetylpropanoate;Ethyl laevulate;Ethyl 4-oxopentanoate;Ethyl gamma-ketovalerate
Latest JECFA evaluation 1999 (Session 53)
Status of specification Full
Chemical name Ethyl 4-oxovalerate
JECFA number 607
CAS number 539-88-8
FEMA number 2442
COE number 373
FLAVIS number
Molecular weight 144.17
Chemical formula C7H12O3
Physical form/odour colourless to pale yellow liquid with apple odour
Solubility soluble in water and alcohol
Solubility in ethanol 1 ml in 1 ml 95% alcohol
Boiling point (°C) 93-94° (18 mm Hg); 105° (24 mm Hg)
Assay min % 98%
Acid value max 2
Refractive index 1.420-1.425
Specific gravity 1.009-1.014
Other requirements
ID Test IR