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Online Edition: "Specifications for Flavourings"

Flavouring alpha-Methylbenzyl isobutyrate
Synonym(s) alpha-Phenethyl-2-methylpropanoate;Methyl phenyl carbinyl isobutyrate;1-Phenylethyl isobutyrate;Stryallyl isobutyrate
Latest JECFA evaluation 2001 (Session 57)
Status of specification Full
Chemical name 1-Phenylethyl-2-methylpropanoate
JECFA number 804
CAS number 7775-39-5
FEMA number 2687
COE number 2088
FLAVIS number
Molecular weight 192.26
Chemical formula C12H16O2
Physical form/odour colourless oily liquid with a sweet, floral-green odour
Solubility insoluble in water; soluble in organic solvents, oils
Solubility in ethanol miscible at room temperature
Boiling point (°C) 219°; 80° (3 mm Hg)
Assay min % 98%
Acid value max 1
Refractive index 1.480-1.486
Specific gravity 0.977-0.983
Other requirements
ID Test IR