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Food safety and quality
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| Flavouring |
Propyl pyruvate |
| Synonym(s) |
Pyruvic acid, propyl ester;Propanoic acid, 2-oxo-, propyl ester |
| Latest JECFA evaluation |
2010 (Session 73) |
| Status of specification |
Full |
| Information required |
|
| Chemical name |
propyl 2-oxopropanoate |
| JECFA number |
1946 |
| CAS number |
20279-43-0 |
| FEMA number |
4484 |
| COE number |
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| FLAVIS number |
|
| Molecular weight |
130.14 |
| Chemical formula |
C6H10O3 |
| Physical form/odour |
Colourless to pale yellow liquid; Sweet carmelling, floral aroma |
| Solubility |
Practically insoluble or insoluble in water |
| Solubility in ethanol |
Soluble |
| Boiling point (°C) |
168-170° |
| Assay min % |
98% |
| Acid value max |
|
| Refractive index |
1.406-1.414 |
| Specific gravity |
1.012-1.020 (20°) |
| Other requirements |
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| ID Test |
MS |
| 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/jecfa73/1946-ms.gif" target=_blank><img src="http://www.fao.org/fileadmin/user_upload/jecfa/img/jecfa73/1946-ms.gif" width="60px;"></a><br>&dname=<a href="http://www.fao.org/fileadmin/user_upload/jecfa/img/jecfa73/1946-ms.gif" target=_blank><img src="http://www.fao.org/fileadmin/user_upload/jecfa/img/jecfa73/1946-ms.gif" width="60px;"></a><br> "Download")
![](fileadmin/user_upload/jecfa/img/<a href="http://www.fao.org/fileadmin/user_upload/jecfa/img/jecfa73/1946-ms.gif" target=_blank><img src="http://www.fao.org/fileadmin/user_upload/jecfa/img/jecfa73/1946-ms.gif" width="60px;"></a><br>)