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Food safety and quality
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| Flavouring |
4-Methyl-2-(methylthiomethyl)-2-pentenal |
| Synonym(s) |
2-Methylmercaptomethyl-4-methylpent-2-enal;2-Pentenal, 4-methyl-2-[(methylthio)methyl]- |
| Latest JECFA evaluation |
2010 (Session 73) |
| Status of specification |
Full |
| Information required |
|
| Chemical name |
4-methyl-2-(methylthiomethyl)-2-pentenal |
| JECFA number |
1918 |
| CAS number |
40878-73-7 |
| FEMA number |
4568 |
| COE number |
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| FLAVIS number |
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| Molecular weight |
158.26 |
| Chemical formula |
C8H14OS |
| Physical form/odour |
Clear colourless to yellow liquid; Sharp pungent aroma |
| Solubility |
Practically insoluble or insoluble in water |
| Solubility in ethanol |
Soluble |
| Boiling point (°C) |
69-70° (2 mm Hg) |
| Assay min % |
95% |
| Acid value max |
|
| Refractive index |
1.488-1.498 |
| Specific gravity |
0.971-0.981 (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/jecfa73/1918-ms.gif" target=_blank><img src="http://www.fao.org/fileadmin/user_upload/jecfa/img/jecfa73/1918-ms.gif" width="60px;"></a><br>&dname=<a href="http://www.fao.org/fileadmin/user_upload/jecfa/img/jecfa73/1918-ms.gif" target=_blank><img src="http://www.fao.org/fileadmin/user_upload/jecfa/img/jecfa73/1918-ms.gif" width="60px;"></a><br> "Download")
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