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Food safety and quality
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| Flavouring |
Isobutyl 2-butenoate |
| Synonym(s) |
Isobutyl crotonate;2-Methylpropyl crotonate |
| Latest JECFA evaluation |
2003 (Session 61) |
| Status of specification |
Full |
| Information required |
|
| Chemical name |
2-Methylpropyl-2-butenoate |
| JECFA number |
1206 |
| CAS number |
589-66-2 |
| FEMA number |
3432 |
| COE number |
|
| FLAVIS number |
09.273 |
| Molecular weight |
142.2 |
| Chemical formula |
C8H14O2 |
| Physical form/odour |
Colourless liquid; powerful fruity aroma |
| Solubility |
Slightly soluble in water; soluble in propylene glycol, most fixed oils |
| Solubility in ethanol |
soluble |
| Boiling point (°C) |
171° |
| Assay min % |
95% (of C8H16O2) |
| Acid value max |
3 |
| Refractive index |
1.426-1.430 |
| Specific gravity |
0.880-0.900 |
| Other requirements |
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| ID Test |
IR |
| Spectrum |
 
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