Food safety and quality: details

Flavouring	2,5-Dimethyl-3-thioacetoxy-tetrahydrofuran, cis and trans isomers
Synonym(s)
Latest JECFA evaluation	2002 (Session 59)
Status of specification	Full
Information required
Chemical name	S-(2,5-Dimethyl)tetrahydrofuran-3-yl thioacetate
JECFA number	1092
CAS number	252736-39-3
FEMA number	3972
COE number
FLAVIS number
Molecular weight	174.3
Chemical formula	C8H14O2S
Physical form/odour	Pale yellow liquid; roast meat, sulfurous,onion aroma
Solubility	Insoluble in water,soluble in organic solvents, fats
Solubility in ethanol	Miscible at room temperature
Boiling point (°C)	241° (760 mm Hg); 50° (1 mm Hg)
Assay min %	90% (mixture of 4 stereoisomers)
Acid value max
Refractive index	1.468-1.474
Specific gravity	0.933-1.003 (20°)
Other requirements	SC: 2,5-Dimethyltetrahydrofuran-3-thiol, Dimethyltetrahydro-3-furyl dithioacetate
ID Test	MS IR NMR
Spectrum