Food safety and quality: details

Flavouring	4,5-Dimethyl-2-isobutyl-3-thiazoline
Synonym(s)	2,5-Dihydro-4,5-dimethyl-2-(2-methylpropyl)thiazole;2-Isobutyl-4,5-dimethyl-3-thiazoline
Latest JECFA evaluation	2002 (Session 59)
Status of specification	Full
Information required
Chemical name	4,5-Dimethyl-2-isobutyl-3-thiazoline
JECFA number	1045
CAS number	65894-83-9
FEMA number	3621
COE number
FLAVIS number
Molecular weight	171.31
Chemical formula	C9H17NS
Physical form/odour	Clear to amber liquid; meaty, spicy, herbaceous odour
Solubility	Insoluble in water; Miscible in fats
Solubility in ethanol	Miscible at room temperature
Boiling point (°C)	71° (4 mm Hg)
Assay min %	97%
Acid value max
Refractive index	1.483-1.489
Specific gravity	0.933-0.937
Other requirements	[60:40 mix of cis and trans isomers]
ID Test	MS IR NMR
Spectrum