Food safety and quality: details

Flavouring	erythro- and threo-3-Mercapto-2-methylbutan-1-ol
Synonym(s)
Latest JECFA evaluation	2003 (Session 61)
Status of specification	Full
Information required
Chemical name	Mercapto-2-methylbutan-1-ol
JECFA number	1289
CAS number	227456-33-9
FEMA number	3993
COE number
FLAVIS number
Molecular weight	120.21
Chemical formula	C5H12OS
Physical form/odour	colourless to yellow liquid; powerful, penetrating aroma
Solubility	Slightly soluble in water; soluble in organic solvents
Solubility in ethanol	soluble
Boiling point (°C)	96-98° (20 mm Hg)
Assay min %	98%
Acid value max	1
Refractive index	1.482-1.490
Specific gravity	1.002-1.008 (20º)
Other requirements
ID Test	CNMR HNMR IR MS
Spectrum