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Online Edition: "Specifications for Flavourings"


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Flavouring Methyl (methylthio)acetate
Synonym(s) Methyl 2-(methylthio)acetate
(Methylthio)acetic acid methyl ester
Latest JECFA evaluation 2007 (Session 68)
Status of specification Full
Chemical name Methyl (methylthio)acetate
JECFA number 1691
CAS number 16630-66-3  
FEMA number 4003
COE number -
FLAVIS number 12.146  
Molecular weight 120.17 
Chemical formula C4H8O2S  
Physical form/odour Clear, colourless liquid; Fruity, pungent aroma 
Solubility Soluble in non-polar solvents; insoluble in water 
Solubility in ethanol Soluble 
Boiling point (°C) 144-145°
Assay min % 98%
Acid value max -
Refractive index 1.464-1.466
Specific gravity 1.105-1.115 (20°)
Other requirements -
ID Test CNMR HNMR IR MS
Spectrum http://www.fao.org/ag/agn/jecfa-flav/img/jecfa68/1691-cnmr.gif
http://www.fao.org/ag/agn/jecfa-flav/img/jecfa68/1691-hnmr.gif
http://www.fao.org/ag/agn/jecfa-flav/img/jecfa68/1691-ir.gif
http://www.fao.org/ag/agn/jecfa-flav/img/jecfa68/1691-ms.gif



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