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Food safety and quality
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| Flavouring |
beta-Ionone |
| Synonym(s) |
beta-Cyclocitrylideneacetone |
| Latest JECFA evaluation |
1998 (Session 51) |
| Status of specification |
Full |
| Information required |
|
| Chemical name |
4-(2,6,6-Trimethyl-1-cyclohexenyl)-3-buten-2-one |
| JECFA number |
389 |
| CAS number |
79-77-6 |
| FEMA number |
2595 |
| COE number |
142 |
| FLAVIS number |
|
| Molecular weight |
192.3 |
| Chemical formula |
C13H20O |
| Physical form/odour |
colourless to pale-yellow liquid with a warm, woody, dry odour |
| Solubility |
soluble in alcohol, propylene glycol, most fixed oils; insoluble in glycerol and water |
| Solubility in ethanol |
1 ml in 3 ml 70% alcohol |
| Boiling point (°C) |
239° |
| Assay min % |
95.0% |
| Acid value max |
|
| Refractive index |
1.517-1.522 |
| Specific gravity |
0.940-0.947 |
| Other requirements |
Total content of ionones: >= 97% |
| ID Test |
IR |
| 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/389.gif" target=_blank><img src="http://www.fao.org/fileadmin/user_upload/jecfa/img/389.gif" width="60px;"></a><br>&dname=<a href="http://www.fao.org/fileadmin/user_upload/jecfa/img/389.gif" target=_blank><img src="http://www.fao.org/fileadmin/user_upload/jecfa/img/389.gif" width="60px;"></a><br> "Download")
![](fileadmin/user_upload/jecfa/img/<a href="http://www.fao.org/fileadmin/user_upload/jecfa/img/389.gif" target=_blank><img src="http://www.fao.org/fileadmin/user_upload/jecfa/img/389.gif" width="60px;"></a><br>)