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Food safety and quality
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| Flavouring |
5-Hydroxy-2,4-decadienoic acid delta-lactone |
| Synonym(s) |
Pentyl-alpha-pyrone |
| Latest JECFA evaluation |
2000 (Session 55) |
| Status of specification |
Full |
| Information required |
|
| Chemical name |
2,4-Decadien-5-olide;6-Pentyl-2-pyrone |
| JECFA number |
245 |
| CAS number |
27593-23-3 |
| FEMA number |
3696 |
| COE number |
10967 |
| FLAVIS number |
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| Molecular weight |
166.22 |
| Chemical formula |
C10H14O2 |
| Physical form/odour |
liquid with a mushroom, blue cheese lactone or dairy odour |
| Solubility |
soluble in fats; insoluble in water |
| Solubility in ethanol |
|
| Boiling point (°C) |
85° (2.5 mm Hg) |
| Assay min % |
98.7% |
| Acid value max |
|
| Refractive index |
1.501-1.509 |
| Specific gravity |
1.000-1.009 |
| Other requirements |
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| 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/245.gif" target=_blank><img src="http://www.fao.org/fileadmin/user_upload/jecfa/img/245.gif" width="60px;"></a><br>&dname=<a href="http://www.fao.org/fileadmin/user_upload/jecfa/img/245.gif" target=_blank><img src="http://www.fao.org/fileadmin/user_upload/jecfa/img/245.gif" width="60px;"></a><br> "Download")
![](fileadmin/user_upload/jecfa/img/<a href="http://www.fao.org/fileadmin/user_upload/jecfa/img/245.gif" target=_blank><img src="http://www.fao.org/fileadmin/user_upload/jecfa/img/245.gif" width="60px;"></a><br>)