|
Food safety and quality
|
|
|
| |
| Flavouring |
3-Mercapto-2-butanone |
| Synonym(s) |
|
| Latest JECFA evaluation |
2000 (Session 55) |
| Status of specification |
Full |
| Information required |
|
| Chemical name |
3-Mercapto-2-butanone |
| JECFA number |
558 |
| CAS number |
40789-98-8 |
| FEMA number |
3298 |
| COE number |
11497 |
| FLAVIS number |
|
| Molecular weight |
104.17 |
| Chemical formula |
C4H8OS |
| Physical form/odour |
colourless or pale yellow liquid, becomes cloudy after short storage |
| Solubility |
slightly soluble in water; soluble in alcohol, ether, pyridine and aqueous alkalis |
| Solubility in ethanol |
|
| Boiling point (°C) |
50° (18 mm Hg) |
| Assay min % |
99% |
| Acid value max |
|
| Refractive index |
1.469-1.479 |
| Specific gravity |
1.016 (20°) |
| Other requirements |
|
| ID Test |
IR |
| Spectrum |
 
|
|
|
|
![](../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/img_add8/558.gif" target=_blank><img src="http://www.fao.org/fileadmin/user_upload/jecfa/img/img_add8/558.gif" width="60px;"></a><br>&dname=<a href="http://www.fao.org/fileadmin/user_upload/jecfa/img/img_add8/558.gif" target=_blank><img src="http://www.fao.org/fileadmin/user_upload/jecfa/img/img_add8/558.gif" width="60px;"></a><br> "Download")
![](fileadmin/user_upload/jecfa/img/<a href="http://www.fao.org/fileadmin/user_upload/jecfa/img/img_add8/558.gif" target=_blank><img src="http://www.fao.org/fileadmin/user_upload/jecfa/img/img_add8/558.gif" width="60px;"></a><br>)