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Flavouring	2-Methyl-1-methylthio-2-butene
Synonym(s)	-
Latest JECFA evaluation	2007 (Session 68)
Status of specification	Full
Chemical name	2-Methyl-1-methylthio-2-butene
JECFA number	1683
CAS number	89534-74-7
FEMA number	4173
COE number	-
FLAVIS number	-
Molecular weight	116.23
Chemical formula	C₆H₁₂S
Physical form/odour	Clear, colourless liquid; Cooked brown and roasted meat aroma
Solubility	Very slightly soluble in water; soluble in non-polar solvents
Solubility in ethanol	Soluble
Boiling point (°C)	78°
Assay min %	99%
Acid value max	-
Refractive index	1.468-1.474
Specific gravity	0.859-0.864
Other requirements	-
ID Test	CNMR HNMR IR MS
Spectrum	http://www.fao.org/ag/agn/jecfa-flav/img/jecfa68/1683-cnmr.gif http://www.fao.org/ag/agn/jecfa-flav/img/jecfa68/1683-hnmr.gif http://www.fao.org/ag/agn/jecfa-flav/img/jecfa68/1683-ir.gif http://www.fao.org/ag/agn/jecfa-flav/img/jecfa68/1683-ms.gif

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