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Online Edition: "Specifications for Flavourings"
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| Flavouring |
Isobutyl 2-butenoate |
| Synonym(s) |
Isobutyl crotonate
2-Methylpropyl crotonate
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| Latest JECFA evaluation |
2003 (Session 61)
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| Status of specification |
Full |
| Chemical name |
2-Methylpropyl-2-butenoate
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| JECFA number |
1206 |
| CAS number |
589-66-2
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| FEMA number |
3432
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| COE number |
-
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| FLAVIS number |
09.273
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| Molecular weight |
142.2 |
| Chemical formula |
C8H14O2
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| 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 |
- |
| ID Test |
IR |
| Spectrum |
http://www.fao.org/ag/agn/jecfa-flav/img/img/1206.gif
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