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Flavouring	3-Methyl-2-butanethiol
Synonym(s)	-
Latest JECFA evaluation	1999 (Session 53)
Status of specification	Full
Chemical name	3-Methyl-2-butanethiol
JECFA number	517
CAS number	2084-18-6
FEMA number	3304
COE number	11510
FLAVIS number	-
Molecular weight	104.22
Chemical formula	C₅H₁₂S
Physical form/odour	colourless liquid with repulsive, mercaptan-like odour
Solubility	insoluble in water, miscible with alcohol and ether
Solubility in ethanol	-
Boiling point (°C)	117-118
Assay min %	99
Acid value max	-
Refractive index	1.442-1.452
Specific gravity	0.835-0.841
Other requirements	-
ID Test	IR, HNMR, MS
Spectrum	http://www.fao.org/ag/agn/jecfa-flav/img/img/517-ir.gif http://www.fao.org/ag/agn/jecfa-flav/img/img/517-hnmr.gif http://www.fao.org/ag/agn/jecfa-flav/img/img/517-ms.gif

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