Food safety and quality: details

Flavouring	2-Mercapto-3-butanol
Synonym(s)	2-Hydroxy-3-butanethiol;3-Hydroxy-2-butanethiol
Latest JECFA evaluation	2000 (Session 55)
Status of specification	Full
Information required
Chemical name	3-Mercapto-2-butanol
JECFA number	546
CAS number	37887-04-0
FEMA number	3502
COE number	760
FLAVIS number
Molecular weight	106.18
Chemical formula	C4H10OS
Physical form/odour
Solubility	insoluble in water; miscible in alcohol and fat
Solubility in ethanol
Boiling point (°C)	58-60° (10 mm Hg)
Assay min %	99%
Acid value max
Refractive index	1.476-1.485
Specific gravity	1.010-1.017
Other requirements
ID Test	IR, CNMR
Spectrum