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Food safety and quality
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| Flavouring |
1,3-Butanedithiol |
| Synonym(s) |
1,3-Dimercaptobutane |
| Latest JECFA evaluation |
1999 (Session 53) |
| Status of specification |
Full |
| Information required |
|
| Chemical name |
1,3-Butanedithiol |
| JECFA number |
538 |
| CAS number |
24330-52-7 |
| FEMA number |
3529 |
| COE number |
11910 |
| FLAVIS number |
|
| Molecular weight |
122.24 |
| Chemical formula |
C4H10S2 |
| Physical form/odour |
liquid with meaty odour |
| Solubility |
insoluble in water; miscible in fat |
| Solubility in ethanol |
|
| Boiling point (°C) |
91-93° |
| Assay min % |
99% |
| Acid value max |
|
| Refractive index |
1.526-1.536 |
| Specific gravity |
1.052 (d20/4) |
| Other requirements |
|
| 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/538.gif" target=_blank><img src="http://www.fao.org/fileadmin/user_upload/jecfa/img/538.gif" width="60px;"></a><br>&dname=<a href="http://www.fao.org/fileadmin/user_upload/jecfa/img/538.gif" target=_blank><img src="http://www.fao.org/fileadmin/user_upload/jecfa/img/538.gif" width="60px;"></a><br> "Download")
![](fileadmin/user_upload/jecfa/img/<a href="http://www.fao.org/fileadmin/user_upload/jecfa/img/538.gif" target=_blank><img src="http://www.fao.org/fileadmin/user_upload/jecfa/img/538.gif" width="60px;"></a><br>)