Food safety and quality
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Flavouring |
3-(Methylthio)propionaldehyde |
Synonym(s) |
Methional;3-(Methylmercapto)propionaldehyde;beta-(Methylthio)propionaldehyde;beta-Methiopropionaldehyde;beta-(Methylmercapto)propionaldehyde |
Latest JECFA evaluation |
2000 (Session 55) |
Status of specification |
Full |
Information required |
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Chemical name |
3-(Methylthio)propionaldehyde |
JECFA number |
466 |
CAS number |
3268-49-3 |
FEMA number |
2747 |
COE number |
125 |
FLAVIS number |
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Molecular weight |
104.17 |
Chemical formula |
C4H8OS |
Physical form/odour |
colourless to pale yellow liquid; powerful and diffusive onion and meat-like odour; in dilution, more pleasant, less onion-like, remniscient of boullion |
Solubility |
insoluble in water; soluble in alcohol, propylene glycol and oil |
Solubility in ethanol |
1 ml in 1 ml 95% alcohol |
Boiling point (°C) |
165-166° |
Assay min % |
98% |
Acid value max |
10 |
Refractive index |
1.479-1.493 |
Specific gravity |
1.037-1.052 |
Other requirements |
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ID Test |
IR |
Spectrum |
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