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Food safety and quality
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| Flavouring |
2,6-Dimethyl-5-heptenal |
| Synonym(s) |
Melonal |
| Latest JECFA evaluation |
2003 (Session 61) |
| Status of specification |
Full |
| Information required |
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| Chemical name |
2,6-Dimethylhept-5-en-1-al |
| JECFA number |
349 |
| CAS number |
106-72-9 |
| FEMA number |
2389 |
| COE number |
2006 |
| FLAVIS number |
05.074 |
| Molecular weight |
140.23 |
| Chemical formula |
C9H16O |
| Physical form/odour |
pale yellow liquid with a melon-like odour |
| Solubility |
soluble in ethanol; insoluble in glycerol and water |
| Solubility in ethanol |
1 ml in 1 ml 95% alcohol; 1 ml in 2 ml 70% alcohol |
| Boiling point (°C) |
116-124° (100 mm Hg) |
| Assay min % |
85% |
| Acid value max |
5 |
| Refractive index |
1.442-1.448 |
| Specific gravity |
0.845-0.854 |
| Other requirements |
SC: 6-methyl-5-hepten-2-one, 2,6 dimethyl-6-heptenal |
| 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/349.gif" target=_blank><img src="http://www.fao.org/fileadmin/user_upload/jecfa/img/349.gif" width="60px;"></a><br>&dname=<a href="http://www.fao.org/fileadmin/user_upload/jecfa/img/349.gif" target=_blank><img src="http://www.fao.org/fileadmin/user_upload/jecfa/img/349.gif" width="60px;"></a><br> "Download")
![](fileadmin/user_upload/jecfa/img/<a href="http://www.fao.org/fileadmin/user_upload/jecfa/img/349.gif" target=_blank><img src="http://www.fao.org/fileadmin/user_upload/jecfa/img/349.gif" width="60px;"></a><br>)