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Food safety and quality
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| Flavouring |
Methylcyclo- pentenolone |
| Synonym(s) |
Cyclotene;2-Hydroxy-3-methyl-2-cyclopenten-1-one;Maple lactone |
| Latest JECFA evaluation |
2000 (Session 55) |
| Status of specification |
Full |
| Information required |
|
| Chemical name |
3-Methylcyclopentane-1,2-dione |
| JECFA number |
418 |
| CAS number |
80-71-7 |
| FEMA number |
2700 |
| COE number |
758 |
| FLAVIS number |
|
| Molecular weight |
112.13 |
| Chemical formula |
C6H8O2 |
| Physical form/odour |
white, crystalline powder with a nutty odour, maple-liquorice aroma in dilute solution |
| Solubility |
soluble in alcohol and propylene glycol; slightly soluble in most fixed oils and 1 g in 72 ml water |
| Solubility in ethanol |
1 g in 5 ml 90% alcohol |
| Boiling point (°C) |
NA |
| Assay min % |
95% |
| Acid value max |
|
| Refractive index |
NA |
| Specific gravity |
NA |
| Other requirements |
Heavy Metals: <=0.004%; Melting range 104-108° |
| 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/418.gif" target=_blank><img src="http://www.fao.org/fileadmin/user_upload/jecfa/img/418.gif" width="60px;"></a><br>&dname=<a href="http://www.fao.org/fileadmin/user_upload/jecfa/img/418.gif" target=_blank><img src="http://www.fao.org/fileadmin/user_upload/jecfa/img/418.gif" width="60px;"></a><br> "Download")
![](fileadmin/user_upload/jecfa/img/<a href="http://www.fao.org/fileadmin/user_upload/jecfa/img/418.gif" target=_blank><img src="http://www.fao.org/fileadmin/user_upload/jecfa/img/418.gif" width="60px;"></a><br>)