Food safety and quality: details

Flavouring	(+/-)-cis- and trans-2-Methyl-2-(4-methyl-3-pentenyl)cyclopropanecarbaldehyde
Synonym(s)	Cyclopropanecarboxaldehyde, 2-methyl-2-(4-methyl-3-pentenyl)-, trans-(+/-)-
Latest JECFA evaluation	2010 (Session 73)
Status of specification	Full
Information required
Chemical name	Mixture of cis-2-methyl-2-(4-methylpent-3-enyl)cyclopropane-1-carbaldehyde and trans-2-methyl-2-(4-methylpent-3-enyl)cyclopropane-1-carbaldehyde
JECFA number	1908
CAS number	130932-16-0;97231-35-1
FEMA number	4393
COE number
FLAVIS number
Molecular weight	166.26
Chemical formula	C11H18O
Physical form/odour	Colourless to slightly yellow liquid; Fruity citrus-like aroma
Solubility	Practically insoluble or insoluble in water
Solubility in ethanol	Freely soluble
Boiling point (°C)	219-236°
Assay min %	90%
Acid value max
Refractive index	1.494- 1.531
Specific gravity	0.894 - 0.990
Other requirements	Mixture of isomers: 90% cis, 10% trans; SC: 5-10% [2-Methyl-2-(4-methylpent-3-en-1-yl)cyclopropyl]methanol
ID Test	HNMR
Spectrum