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Online Edition: "Specifications for Flavourings"

Flavouring Isoamyl propionate
Synonym(s) Isoamyl propanoate
Latest JECFA evaluation 1996 (Session 46)
Status of specification Full
Chemical name 3-Methylbutyl propanoate
JECFA number 44
CAS number 105-68-0
FEMA number 2082
COE number 417
FLAVIS number
Molecular weight 144.21
Chemical formula C8H16O2
Physical form/odour Colourless liquid with a fruity, apricot, pineapple-like odour
Solubility Soluble in ethanol and most fixed oils, insoluble in glycerol, propylene glycol and water
Solubility in ethanol 1ml in 3ml 70% ethanol
Boiling point (°C) 160°
Assay min % 98.0%
Acid value max 1
Refractive index 1.405-1.409
Specific gravity 0.866-0.871
Other requirements
ID Test IR