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Online Edition: "Specifications for Flavourings"

Flavouring Isobutyl propionate
Latest JECFA evaluation 1997 (Session 49)
Status of specification Full
Chemical name 2-Methylpropyl propanoate
JECFA number 148
CAS number 540-42-1
FEMA number 2212
COE number 406
FLAVIS number
Molecular weight 130.18
Chemical formula C7H14O2
Physical form/odour colourless to pale yellow liquid with an odour reminiscent of rum & pineapple
Solubility miscible with alcohol; soluble in most organic solvents; insoluble in water
Solubility in ethanol
Boiling point (°C) 137-138°
Assay min % 95.0%
Acid value max
Refractive index 1.395-1.400
Specific gravity 0.861-0.867
Other requirements
ID Test IR