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Online Edition: "Specifications for Flavourings"

Flavouring 4-Methyl-1-phenyl-2-pentanone
Synonym(s) Isobutyl benzyl ketone;Benzyl 2-methylpropyl ketone;Benzyl isobutyl ketone
Latest JECFA evaluation 2001 (Session 57)
Status of specification Full
Chemical name 4-Methyl-1-phenyl-2-pentanone
JECFA number 828
CAS number 5349-62-2
FEMA number 2740
COE number 159
FLAVIS number
Molecular weight 176.26
Chemical formula C12H16O
Physical form/odour colourless oily liquid with a sweet, woody, spicy, burnt sugar odour
Solubility insoluble in water, soluble in organic solvents, oils
Solubility in ethanol miscible at room temperature
Boiling point (°C) 250-251°
Assay min % 98%
Acid value max
Refractive index 1.500-1.510
Specific gravity 0.940-0.949
Other requirements
ID Test IR