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Online Edition: "Specifications for Flavourings"

Flavouring Ethyl 3-methylthiopropionate
Synonym(s) Ethyl beta-(methylthio)propionate
Latest JECFA evaluation 2002 (Session 59)
Status of specification Full
Chemical name Ethyl 3-(methylthio)propionate
JECFA number 476
CAS number 13327-56-5
FEMA number 3343
COE number 11476
FLAVIS number
Molecular weight 148.23
Chemical formula C6H12O2S
Physical form/odour colourless to pale yellow liquid with onion-like, fruity, sweet odour
Solubility in ethanol 1 mL in 1 mL 95% alcohol
Boiling point (°C) 89-91° (15 mm Hg)
Assay min % 99%
Acid value max 1
Refractive index 1.457-1.463
Specific gravity 1.030-1.035
Other requirements
ID Test IR