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Food safety and quality
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| Flavouring |
1,2-Propanedithiol |
| Synonym(s) |
1,2-Dimercaptopropane |
| Latest JECFA evaluation |
2000 (Session 55) |
| Status of specification |
Full |
| Information required |
|
| Chemical name |
1,2-Propanedithiol |
| JECFA number |
536 |
| CAS number |
814-67-5 |
| FEMA number |
3520 |
| COE number |
11564 |
| FLAVIS number |
|
| Molecular weight |
108.22 |
| Chemical formula |
C3H8S2 |
| Physical form/odour |
clear blue liquid |
| Solubility |
insoluble in water; miscible in oil |
| Solubility in ethanol |
|
| Boiling point (°C) |
152° |
| Assay min % |
96% |
| Acid value max |
|
| Refractive index |
1.531-1.541 |
| Specific gravity |
1.075-1.081 |
| Other requirements |
Chlorinated monothiol: max. 1.1% |
| ID Test |
IR, 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/536.gif" target=_blank><img src="http://www.fao.org/fileadmin/user_upload/jecfa/img/536.gif" width="60px;"></a><br>&dname=<a href="http://www.fao.org/fileadmin/user_upload/jecfa/img/536.gif" target=_blank><img src="http://www.fao.org/fileadmin/user_upload/jecfa/img/536.gif" width="60px;"></a><br> "Download")
![](fileadmin/user_upload/jecfa/img/<a href="http://www.fao.org/fileadmin/user_upload/jecfa/img/536.gif" target=_blank><img src="http://www.fao.org/fileadmin/user_upload/jecfa/img/536.gif" width="60px;"></a><br>)