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Food safety and quality
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| |
| Flavouring |
2,3-Undecadione |
| Synonym(s) |
Acetyl nonanoyl;Acetyl pelargonyl;Acetyl nonyryl |
| Latest JECFA evaluation |
2003 (Session 61) |
| Status of specification |
Full |
| Information required |
|
| Chemical name |
Undeca-2,3-dione |
| JECFA number |
417 |
| CAS number |
7493-59-6 |
| FEMA number |
3090 |
| COE number |
155 |
| FLAVIS number |
07.021 |
| Molecular weight |
184.28 |
| Chemical formula |
C11H20O2 |
| Physical form/odour |
oily, yellow liquid |
| Solubility |
very slightly soluble in water; soluble in alcohol |
| Solubility in ethanol |
|
| Boiling point (°C) |
109-111° (10 mm Hg) |
| Assay min % |
97% |
| Acid value max |
|
| Refractive index |
1.432-1.438 |
| Specific gravity |
0.905-0.915 |
| Other requirements |
|
| ID Test |
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/417.gif" target=_blank><img src="http://www.fao.org/fileadmin/user_upload/jecfa/img/417.gif" width="60px;"></a><br>&dname=<a href="http://www.fao.org/fileadmin/user_upload/jecfa/img/417.gif" target=_blank><img src="http://www.fao.org/fileadmin/user_upload/jecfa/img/417.gif" width="60px;"></a><br> "Download")
![](fileadmin/user_upload/jecfa/img/<a href="http://www.fao.org/fileadmin/user_upload/jecfa/img/417.gif" target=_blank><img src="http://www.fao.org/fileadmin/user_upload/jecfa/img/417.gif" width="60px;"></a><br>)