|
Food safety and quality
|
|
|
| |
| Flavouring |
Dihydro-alpha-ionone |
| Synonym(s) |
|
| Latest JECFA evaluation |
1998 (Session 51) |
| Status of specification |
Full |
| Information required |
|
| Chemical name |
4-(2,6,6-Trimethyl-2-cyclohexenyl)-3-butan-2-one |
| JECFA number |
393 |
| CAS number |
31499-72-6 |
| FEMA number |
3628 |
| COE number |
|
| FLAVIS number |
|
| Molecular weight |
194.32 |
| Chemical formula |
C13H22O |
| Physical form/odour |
colourless to pale yellow, oily liquid |
| Solubility |
|
| Solubility in ethanol |
1 ml in 1 ml 80% alcohol |
| Boiling point (°C) |
234° |
| Assay min % |
99.0% |
| Acid value max |
|
| Refractive index |
1.476-1.482 |
| Specific gravity |
0.919-0.927 |
| Other requirements |
|
| 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/393.gif" target=_blank><img src="http://www.fao.org/fileadmin/user_upload/jecfa/img/393.gif" width="60px;"></a><br>&dname=<a href="http://www.fao.org/fileadmin/user_upload/jecfa/img/393.gif" target=_blank><img src="http://www.fao.org/fileadmin/user_upload/jecfa/img/393.gif" width="60px;"></a><br> "Download")
![](fileadmin/user_upload/jecfa/img/<a href="http://www.fao.org/fileadmin/user_upload/jecfa/img/393.gif" target=_blank><img src="http://www.fao.org/fileadmin/user_upload/jecfa/img/393.gif" width="60px;"></a><br>)