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Online Edition: "Specifications for Flavourings"
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Analytical Methods (Volume 4)
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Flavouring
3-(Methylthio)propyl mercaptoacetate (Safety evaluation not completed)
Synonym(s)
Acetic acid, mercapto-, 3-(methylthio)propyl ester
Latest JECFA evaluation
2010 (Session 73)
Status of specification
Full
Information required
Chemical name
3-(methylthio)propyl 2-mercaptoacetate
JECFA number
1914
CAS number
852997-30-9
FEMA number
4561
COE number
FLAVIS number
Molecular weight
180.29
Chemical formula
C6H12O2S2
Physical form/odour
Clear colourless to yellow liquid; Strong sweet onion-like aroma
Solubility
Practically insoluble or insoluble in water
Solubility in ethanol
Soluble
Boiling point (°C)
109-111°
Assay min %
97%
Acid value max
1
Refractive index
1.515-1.521
Specific gravity
1.160-1.166 (20°)
Other requirements
Safety evaluation not completed
ID Test
HNMR IR MS
Spectrum