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Food safety and quality
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| Flavouring |
4-Methyl-2,3-pentanedione |
| Synonym(s) |
Acetyl isobutyryl |
| Latest JECFA evaluation |
2000 (Session 55) |
| Status of specification |
Full |
| Information required |
|
| Chemical name |
4-Methylpentane-2,3-dione |
| JECFA number |
411 |
| CAS number |
7493-58-5 |
| FEMA number |
2730 |
| COE number |
2043 |
| FLAVIS number |
|
| Molecular weight |
114.14 |
| Chemical formula |
C6H10O2 |
| Physical form/odour |
yellow oil |
| Solubility |
|
| Solubility in ethanol |
|
| Boiling point (°C) |
116° |
| Assay min % |
96% |
| Acid value max |
|
| Refractive index |
1.397-1.405 |
| Specific gravity |
0.941-0.950 (20°) |
| Other requirements |
Melting point: - 2.4° |
| ID Test |
MS |
| 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/img_add8/411.gif" target=_blank><img src="http://www.fao.org/fileadmin/user_upload/jecfa/img/img_add8/411.gif" width="60px;"></a><br>&dname=<a href="http://www.fao.org/fileadmin/user_upload/jecfa/img/img_add8/411.gif" target=_blank><img src="http://www.fao.org/fileadmin/user_upload/jecfa/img/img_add8/411.gif" width="60px;"></a><br> "Download")
![](fileadmin/user_upload/jecfa/img/<a href="http://www.fao.org/fileadmin/user_upload/jecfa/img/img_add8/411.gif" target=_blank><img src="http://www.fao.org/fileadmin/user_upload/jecfa/img/img_add8/411.gif" width="60px;"></a><br>)