Food safety and quality: details

Flavouring	4-Methyl-cis-2-pentene
Synonym(s)	cis-2-methyl-3-pentene;2-Pentene, 4-methyl-, (2Z)-
Latest JECFA evaluation	2014 (Session 79)
Status of specification	Full
Information required
Chemical name	(2Z)-4-methylpent-2-ene
JECFA number	2194
CAS number	691-38-3
FEMA number	4650
COE number
FLAVIS number
Molecular weight	84.16
Chemical formula	C6H12
Physical form/odour	Clear colourless liquid, Fruity green aroma upon dilution
Solubility	Practically insoluble to insoluble
Solubility in ethanol	Slightly Soluble
Boiling point (°C)	57-58°
Assay min %	95%
Acid value max
Refractive index	1.3860-1.3900
Specific gravity	0.6690-0.6730
Other requirements	Z-isomer: 90%; E-isomer: 5-7%
ID Test	IR, HNMR
Spectrum