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Online Edition: "Specifications for Flavourings"

Flavouring trans-2-Hexenoic acid
Synonym(s) Acrylic, beta-propylacrylic acid;Hexen-2-oic acid
Latest JECFA evaluation 2004 (Session 63)
Status of specification Full
Chemical name Hex-2(trans)-enoic acid
JECFA number 1361
CAS number 13419-69-7
FEMA number 3169
COE number
FLAVIS number 08.054
Molecular weight 114.14
Chemical formula C6H10O2
Physical form/odour Colourless needle-like crystals; Fatty acrid musty aroma/sweet on dilution
Solubility Soluble in ether, propylene glycol, and most fixed oils; Slightly soluble in water
Solubility in ethanol Soluble
Boiling point (°C)
Assay min % 97%
Acid value max
Refractive index
Specific gravity
Other requirements mp: 33-37°