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Food safety and quality
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| Flavouring |
Ethylcyclo-pentenolone |
| Synonym(s) |
3-Ethyl-2-hydroxy-2-cyclopenten-1-one;3-Ethyl-2-cyclopenten-2-ol-1-one |
| Latest JECFA evaluation |
2003 (Session 61) |
| Status of specification |
Full |
| Information required |
|
| Chemical name |
3-Ethylcyclopentane-1,2-dione |
| JECFA number |
419 |
| CAS number |
21835-01-8 |
| FEMA number |
3152 |
| COE number |
759 |
| FLAVIS number |
07.057 |
| Molecular weight |
126.16 |
| Chemical formula |
C7H10O2 |
| Physical form/odour |
white crystalline powder with a maple-, caramel-, smoky-, coffee-like odour |
| Solubility |
miscible with alcohol, glycerol, benzyl alcohol and water |
| Solubility in ethanol |
|
| Boiling point (°C) |
78-80° (4 mm Hg) |
| Assay min % |
90% |
| Acid value max |
|
| Refractive index |
1.470-1.480 (25°) |
| Specific gravity |
1.060-1.066 |
| Other requirements |
mp: 36-43°; SC: 3-ethylcylopentan-1,2-dione (enolic form) |
| 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/419.gif" target=_blank><img src="http://www.fao.org/fileadmin/user_upload/jecfa/img/419.gif" width="60px;"></a><br>&dname=<a href="http://www.fao.org/fileadmin/user_upload/jecfa/img/419.gif" target=_blank><img src="http://www.fao.org/fileadmin/user_upload/jecfa/img/419.gif" width="60px;"></a><br> "Download")
![](fileadmin/user_upload/jecfa/img/<a href="http://www.fao.org/fileadmin/user_upload/jecfa/img/419.gif" target=_blank><img src="http://www.fao.org/fileadmin/user_upload/jecfa/img/419.gif" width="60px;"></a><br>)