Food safety and quality: details

Flavouring	2-Ethyl-2,5-dihydro-4-methylthiazole
Synonym(s)	2-Ethyl-4-methyl-3-thiazoline;2-Ethyl-2,5-dihydro-4-methylthiazole
Latest JECFA evaluation	2012 (Session 76)
Status of specification	Full
Information required
Chemical name	2-Ethyl-4-methyl-2,5-dihydro-1,3-thiazole
JECFA number	2114
CAS number	41803-21-8
FEMA number	4695
COE number
FLAVIS number
Molecular weight	129.22
Chemical formula	C6H11NS
Physical form/odour	Clear to pale yellow liquid; Nutty roasted vegetable aroma
Solubility	Slightly soluble in water
Solubility in ethanol	Soluble
Boiling point (°C)	188-189°
Assay min %	90%
Acid value max
Refractive index	1.510-1.512
Specific gravity	0.990-1.090 (20°)
Other requirements	S.C.: 2-3% 2-Ethyl-4-methyl-4,5-dihydrothiazole-4-ol; 2-3% 3,4-Dimethylthiophene; 2-3% 2-Ethyl-4-methylthiazole
ID Test	IR HNMR
Spectrum