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Online Edition: "Specifications for Flavourings"

Flavouring Isoamyl 2-methylbutyrate
Synonym(s) Isoamyl 2-methyl butanoate
Latest JECFA evaluation 2001 (Session 57)
Status of specification Full
Chemical name 3-Methylbutyl 2-methylbutanoate
JECFA number 51
CAS number 27625-35-0
FEMA number 3505
COE number 10721
FLAVIS number
Molecular weight 172.27
Chemical formula C10H20O2
Physical form/odour colourless liquid with a fruity odour
Solubility soluble in ethanol and oil, insoluble in water
Solubility in ethanol
Boiling point (°C) 70-71° (8 mm Hg)
Assay min % 95%
Acid value max
Refractive index 1.4124
Specific gravity 0.852-0.861
Other requirements
ID Test IR