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Online Edition: "Specifications for Flavourings"

Flavouring (+/-)-cis- and trans-1,2-Dihydroperillaldehyde
Synonym(s) 4-Isopropenyl-cyclohexanecarboxaldehyde
Latest JECFA evaluation 2010 (Session 73)
Status of specification Full
Chemical name Mixture of cis-4-(prop-1-en-2-yl)cyclohexanecarbaldehyde and trans-4-(prop-1-en-2-yl)cyclohexanecarbaldehyde
JECFA number 1902
CAS number 22451-50-9;22451-49-6
FEMA number 4312
COE number
FLAVIS number
Molecular weight 152.23
Chemical formula C10H16O
Physical form/odour Clear colourless or pale yellow liquid; Spicy, herbal, fruity aroma
Solubility Sparingly soluble in water; soluble in non-polar solvents
Solubility in ethanol Soluble
Boiling point (°C) 211-213°; 55-58° (1 mm Hg)
Assay min % 80%
Acid value max
Refractive index 1.469-1.475
Specific gravity 0.923-0.929
Other requirements Mixture of isomers (53% cis, 27% trans); SC: 10-11% trans-4-Isopropyl-cyclohexane-1-carboxaldehyde; 4-5% cis-4-Isopropyl-cyclohexane-1-carboxaldehyde; 1-2% 4-Isopropenyl-cyclohex-1-enecarboxaldehyde