|
Food safety and quality
|
|
|
| |
| Flavouring |
5-Methyl-2,3-hexanedione |
| Synonym(s) |
Isobutyl methyl glyoxal;Acetyl isopentanoyl;2-Methyl-4,5-hexanedione;Isobutyl methyl diketone;Acetyl isovaleryl |
| Latest JECFA evaluation |
2000 (Session 55) |
| Status of specification |
Full |
| Information required |
|
| Chemical name |
5-Methylhexane-2,3-dione |
| JECFA number |
414 |
| CAS number |
13706-86-0 |
| FEMA number |
3190 |
| COE number |
11148 |
| FLAVIS number |
|
| Molecular weight |
128.17 |
| Chemical formula |
C7H12O2 |
| Physical form/odour |
yellowish liquid oil with a butter odour |
| Solubility |
slightly soluble in water; miscible with alcohol, propylene glycol, and glycerol |
| Solubility in ethanol |
|
| Boiling point (°C) |
138° |
| Assay min % |
95% |
| Acid value max |
|
| Refractive index |
1.408-1.414 |
| Specific gravity |
0.908 (22°) |
| 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/414.gif" target=_blank><img src="http://www.fao.org/fileadmin/user_upload/jecfa/img/414.gif" width="60px;"></a><br>&dname=<a href="http://www.fao.org/fileadmin/user_upload/jecfa/img/414.gif" target=_blank><img src="http://www.fao.org/fileadmin/user_upload/jecfa/img/414.gif" width="60px;"></a><br> "Download")
![](fileadmin/user_upload/jecfa/img/<a href="http://www.fao.org/fileadmin/user_upload/jecfa/img/414.gif" target=_blank><img src="http://www.fao.org/fileadmin/user_upload/jecfa/img/414.gif" width="60px;"></a><br>)