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Food safety and quality
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| |
| Flavouring |
1-Mercapto-2-propanone |
| Synonym(s) |
Mercaptoacetone |
| Latest JECFA evaluation |
2004 (Session 63) |
| Status of specification |
Full |
| Information required |
RI range |
| Chemical name |
1-Mercapto-2-propanone |
| JECFA number |
557 |
| CAS number |
24653-75-6 |
| FEMA number |
3856 |
| COE number |
|
| FLAVIS number |
12.143 |
| Molecular weight |
90.14 |
| Chemical formula |
C3H6OS |
| Physical form/odour |
colourless to pale yellow liquid |
| Solubility |
soluble in oil and alcohol |
| Solubility in ethanol |
|
| Boiling point (°C) |
47-49° (19 mm Hg) |
| Assay min % |
98% |
| Acid value max |
|
| Refractive index |
1.455-1.465 |
| Specific gravity |
0.817-0.847 |
| Other requirements |
|
| ID Test |
NMR |
| Spectrum |
 
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![](../typo3conf/ext/dyna_fef/download.php?dfile=/work/htdocs/disseminationtypo3/web/fileadmin/user_upload/jecfa/img/<a href="http://www.fao.org/fileadmin/user_upload/jecfa/img/557.gif" target=_blank><img src="http://www.fao.org/fileadmin/user_upload/jecfa/img/557.gif" width="60px;"></a><br>&dname=<a href="http://www.fao.org/fileadmin/user_upload/jecfa/img/557.gif" target=_blank><img src="http://www.fao.org/fileadmin/user_upload/jecfa/img/557.gif" width="60px;"></a><br> "Download")
![](fileadmin/user_upload/jecfa/img/<a href="http://www.fao.org/fileadmin/user_upload/jecfa/img/557.gif" target=_blank><img src="http://www.fao.org/fileadmin/user_upload/jecfa/img/557.gif" width="60px;"></a><br>)