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Food safety and quality
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| Flavouring |
5-Ethyl-2-hydroxy-3-methylcyclopent-2-en-1-one |
| Synonym(s) |
1,2-Cyclohexanedione |
| Latest JECFA evaluation |
2003 (Session 61) |
| Status of specification |
Full |
| Information required |
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| Chemical name |
5-Ethyl-2-hydroxy-3-methylcyclopent-2-en-1-one |
| JECFA number |
423 |
| CAS number |
53263-58-4 |
| FEMA number |
3454 |
| COE number |
11078 |
| FLAVIS number |
07.118 |
| Molecular weight |
140.18 |
| Chemical formula |
C8H12O2 |
| Physical form/odour |
|
| Solubility |
slightly soluble in water; soluble in ethanol, fat, propylene glycol |
| Solubility in ethanol |
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| Boiling point (°C) |
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| Assay min % |
99% |
| Acid value max |
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| Refractive index |
1.478-1.484 |
| Specific gravity |
1.053-1.060 |
| Other requirements |
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| 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/423.gif" target=_blank><img src="http://www.fao.org/fileadmin/user_upload/jecfa/img/423.gif" width="60px;"></a><br>&dname=<a href="http://www.fao.org/fileadmin/user_upload/jecfa/img/423.gif" target=_blank><img src="http://www.fao.org/fileadmin/user_upload/jecfa/img/423.gif" width="60px;"></a><br> "Download")
![](fileadmin/user_upload/jecfa/img/<a href="http://www.fao.org/fileadmin/user_upload/jecfa/img/423.gif" target=_blank><img src="http://www.fao.org/fileadmin/user_upload/jecfa/img/423.gif" width="60px;"></a><br>)