Food safety and quality: details

Flavouring	3-[3-(2-Isopropyl-5-methylcyclohexyl)-ureido]-butyric acid ethyl ester
Synonym(s)	3-[3-(2-Isopropyl-5-methyl-cyclohexyl)ureido-butyric acid ethyl ester
Latest JECFA evaluation	2014 (Session 79)
Status of specification	Full
Information required
Chemical name	ethyl 3-(3-(2-isopropyl-5-methylcyclohexyl)ureido)butanoate
JECFA number	2203
CAS number	1160112-20-8
FEMA number	4766
COE number
FLAVIS number
Molecular weight	312.45
Chemical formula	C17H32N2O3
Physical form/odour	Pearl-white powder, Bland aroma
Solubility	Practically insoluble to insoluble
Solubility in ethanol	Soluble
Boiling point (°C)
Assay min %	95% (Sum of isomers)
Acid value max
Refractive index	NA
Specific gravity	NA
Other requirements	melting point: 108-113ºC; Isomers: 93-98% (3R(1S, 2S, 5R)), 3S((1S, 2S, 5R)), (3R(1R, 2R, 5S)), (3S((1R, 2R, 5S)); and 0-5% (sum of all other isomers)
ID Test	IR, MS, HNMR
Spectrum