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Online Edition: "Specifications for Flavourings"

Flavouring Ethyl 3-(methylthio)-(2Z)-propenoate
Synonym(s) 2-Propenoic acid, 3-(methylthio)-, ethyl ester, (2Z)-
Latest JECFA evaluation 2010 (Session 73)
Status of specification Full
Chemical name (Z)-ethyl 3-(methylthio)acrylate
JECFA number 1915
CAS number 136115-66-7
FEMA number 4563
COE number
FLAVIS number
Molecular weight 146.21
Chemical formula C6H10O2S
Physical form/odour Clear colourless liquid; Acrid sweet onion-like aroma
Solubility Practically insoluble or insoluble in water
Solubility in ethanol Soluble
Boiling point (°C) 200-202°
Assay min % 88%
Acid value max
Refractive index 1.510-1.541
Specific gravity 1.081-1.090
Other requirements SC: 7-9% Ethyl 3-(methylthio)-trans-2-propenoate
ID Test MS
Spectrum