Food safety and quality: details

Flavouring	(+/-)-cis- and trans-1,2-Dihydroperillaldehyde
Synonym(s)	4-Isopropenyl-cyclohexanecarboxaldehyde
Latest JECFA evaluation	2010 (Session 73)
Status of specification	Full
Information required
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
ID Test	HNMR
Spectrum