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Food safety and quality
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| Flavouring |
2-Methyl-2-butenal |
| Synonym(s) |
Tiglaldehyde;2-Methylcrotonaldehyde;alpha-Methylcrotonaldehyde;alpha,beta-Dimethylacrolein;2,3-Dimethylacrolein |
| Latest JECFA evaluation |
2003 (Session 61) |
| Status of specification |
Full |
| Information required |
|
| Chemical name |
2-Methyl-2-butenal |
| JECFA number |
1201 |
| CAS number |
1115-11-3 |
| FEMA number |
3407 |
| COE number |
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| FLAVIS number |
05.095 |
| Molecular weight |
84.12 |
| Chemical formula |
C5H8O |
| Physical form/odour |
Colourless liquid; penetrating, powerful green ethereal aroma |
| Solubility |
Slightly soluble in water; soluble in ether and most oils |
| Solubility in ethanol |
soluble |
| Boiling point (°C) |
117-118° |
| Assay min % |
99% |
| Acid value max |
3 |
| Refractive index |
1.445-1.450 |
| Specific gravity |
0.868-0.873 (20°) |
| Other requirements |
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| ID Test |
NMR IR |
| Spectrum |
 
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