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Online Edition: "Specifications for Flavourings"

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