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Food safety and quality
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| Flavouring |
1-Methyldithio-2-propanone |
| Synonym(s) |
Methyl 2-oxopropyl disulfide;1-(Methyldithio)-2-propanone;1-Methyldisulfanyl)acetone;1-(Methyldithio)-2-propanone |
| Latest JECFA evaluation |
2012 (Session 76) |
| Status of specification |
Full |
| Information required |
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| Chemical name |
1-(Methyldisulfanyl)propan-2-one |
| JECFA number |
2088 |
| CAS number |
122861-78-3 |
| FEMA number |
4696 |
| COE number |
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| FLAVIS number |
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| Molecular weight |
136.24 |
| Chemical formula |
C4H8OS2 |
| Physical form/odour |
Clear to pale yellow liquid; Sulfurous sweet green aroma |
| Solubility |
Soluble in water |
| Solubility in ethanol |
Soluble |
| Boiling point (°C) |
189-190° |
| Assay min % |
90% |
| Acid value max |
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| Refractive index |
1.520-1.526 |
| Specific gravity |
1.132-1.144 |
| Other requirements |
SC: 2-3% 1-mercapto-2-propanone; 2-3% 1,1'-disulfanediyldipropan-2-one; 1-3% 1,3-dimethyltrisulfane |
| ID Test |
IR HNMR |
| Spectrum |


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