Food safety and quality: details

Flavouring	2-Oxothiolane
Synonym(s)	Thiolan-2-one;Thiacyclopentanone-2;Thiobutyrolactone;Tetrahydro-2-thiophenone;4-Butyrothiolactone;2-Oxotetrahydrothiophene;gamma-Thiobutyrolactone
Latest JECFA evaluation	2010 (Session 73)
Status of specification	Full
Information required
Chemical name	dihydrothiophen-2(3H)-one
JECFA number	1923
CAS number	1003-10-7
FEMA number	4570
COE number
FLAVIS number
Molecular weight	102.15
Chemical formula	C4H6OS
Physical form/odour	Clear colourless to yellow liquid; Burnt garlic aroma
Solubility	Practically insoluble or insoluble in water
Solubility in ethanol	Soluble
Boiling point (°C)	195-197°
Assay min %	95%
Acid value max
Refractive index	1.518-1.528
Specific gravity	1.175-1.185 (20°)
Other requirements
ID Test	HNMR MS
Spectrum