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Online Edition: "Specifications for Flavourings"

Flavouring Cinnamic acid
Synonym(s) 3-Phenylacrylic acid;beta-Phenylacrylic acid;Benzyldeneacetic acid;Benzene propenoic acid
Latest JECFA evaluation 2000 (Session 55)
Status of specification Full
Chemical name 3-Phenyl-2-propenoic acid
JECFA number 657
CAS number 621-82-9
FEMA number 2288
COE number 22
FLAVIS number
Molecular weight 148.16
Chemical formula C9H8O2
Physical form/odour White crystalline scales, honey floral odour
Solubility insoluble in water; soluble in oils
Solubility in ethanol slightly soluble
Boiling point (°C) 300°
Assay min % 98% by titration
Acid value max
Refractive index
Specific gravity
Other requirements mp: 132° minimum
ID Test IR