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Online Edition: "Specifications for Flavourings"

Flavouring Propyl sorbate
Synonym(s) (E,E)-2,4-hexadienoic acid propyl ester;trans,trans-2,4-hexadienoic acid propyl ester;propyl (2E,4E)-2,4-hexadienoate;propyl (2E,4E)-hexa-2,4-dienoate;propyl 2,4-hexadiene carboxylate;propyl 2,4-hexadienoate;sorbic acid propyl ester
Latest JECFA evaluation 2012 (Session 76)
Status of specification Full
Chemical name Propyl (2E,4E)-hexa-2,4-dienoate
JECFA number 2164
CAS number 10297-72-0
FEMA number 4614
COE number
FLAVIS number
Molecular weight 154.21
Chemical formula C9H14O2
Physical form/odour Clear colourless liquid; Sweet fruity aroma
Solubility Practically insoluble to insoluble in water
Solubility in ethanol Soluble
Boiling point (°C) 205-207º
Assay min % 95%
Acid value max
Refractive index 1.488-1.491
Specific gravity 0.919-0.924 (20º)
Other requirements
ID Test MS