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Food safety and quality
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| Flavouring |
Methyl-2-butenal |
| Synonym(s) |
Senecialdehyde;Prenal;3-Methylcrotonaldehyde |
| Latest JECFA evaluation |
2003 (Session 61) |
| Status of specification |
Full |
| Information required |
|
| Chemical name |
3-Methyl-2-butenal |
| JECFA number |
1202 |
| CAS number |
107-86-8 |
| FEMA number |
3646 |
| COE number |
|
| FLAVIS number |
05.124 |
| Molecular weight |
84.11 |
| Chemical formula |
C5H8O |
| Physical form/odour |
Colourless liquid; almond, mild-buttery aroma |
| Solubility |
Slightly soluble in water; soluble in fats |
| Solubility in ethanol |
soluble |
| Boiling point (°C) |
133-135° |
| Assay min % |
99% |
| Acid value max |
3 |
| Refractive index |
1.458-1.464 |
| Specific gravity |
0.870-0.875 |
| Other requirements |
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| ID Test |
NMR IR |
| Spectrum |
 
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