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Online Edition: "Specifications for Flavourings"

Flavouring 3-Phenylpropionic acid
Synonym(s) Benzylacetic acid;Hydrocinnamic acid;beta-Phenylpropionic acid
Latest JECFA evaluation 2000 (Session 55)
Status of specification Full
Chemical name Benzenepropanoic acid
JECFA number 646
CAS number 501-52-0
FEMA number 2889
COE number 32
FLAVIS number
Molecular weight 150.18
Chemical formula C9H10O2
Physical form/odour White crystalline solid, faint, sweet, somewhat balsamic and coumarin-like odour
Solubility slightly soluble in water; soluble in oils
Solubility in ethanol moderately soluble
Boiling point (°C) 280°
Assay min % 97%; 98% by titration
Acid value max
Refractive index
Specific gravity
Other requirements mp: 43° minimum
ID Test IR