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Online Edition: "Specifications for Flavourings"

Flavouring 2,3-Butanedithiol
Synonym(s) 2,3-Dimercaptobutane
Latest JECFA evaluation 1999 (Session 53)
Status of specification Full
Chemical name 2,3-Butanedithiol
JECFA number 539
CAS number 4532-64-3
FEMA number 3477
COE number 725
FLAVIS number
Molecular weight 122.24
Chemical formula C4H10S2
Physical form/odour
Solubility insoluble in water; miscble in fat
Solubility in ethanol
Boiling point (°C) 69-70° (28 mm Hg)
Assay min % 99%
Acid value max
Refractive index 1.517-1.527
Specific gravity 0.997 (20°)
Other requirements
ID Test IR
Spectrum