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Online Edition: "Specifications for Flavourings"
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| Flavouring |
Methyl-2-butenal |
| Synonym(s) |
3-Methylcrotonaldehyde
Prenal
Senecialdehyde
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| Latest JECFA evaluation |
2003 (Session 61)
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| Status of specification |
Full |
| Chemical name |
3-Methyl-2-butenal
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| JECFA number |
1202 |
| CAS number |
107-86-8
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| FEMA number |
3646
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| COE number |
-
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| FLAVIS number |
05.124
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| Molecular weight |
84.11 |
| Chemical formula |
C5H8O
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| 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 |
- |
| ID Test |
NMR IR |
| Spectrum |
http://www.fao.org/ag/agn/jecfa-flav/img/img/1202.gif
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