Isobutyl 2-butenoate
Synonym(s):2-Methylpropyl (E)-but-2-enoate;Isobutyl (E)-2-butenoate;Isobutyl crotonate
- CAS NO.：589-66-2
- Empirical Formula: C8H14O2
- Molecular Weight: 142.2
- MDL number: MFCD00036651
- EINECS: 209-658-5
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-04-03 14:17:14
What is Isobutyl 2-butenoate?
Description
Isobutyl 2-butenoate has a fruity flavor. It may be prepared by heating the corresponding acid and alcohol with sulfuric acid.
Chemical properties
Colorless liquid; powerful fruity odor. Soluble in alcohol, propylene glycol, fixed oils; slightly soluble in water.
Chemical properties
Isobutyl 2-Butenoate has a fruity, powerful odor.
Occurrence
Reported found in grapes, mango and Roman chamomile oil.
The Uses of Isobutyl 2-butenoate
Food additive.
Preparation
By heating the corresponding acid and alcohol with sulfuric acid.
Taste threshold values
Taste characteristics at 20 ppm: waxy, fruity, sweet with apple and pineapple nuances.
Properties of Isobutyl 2-butenoate
| Boiling point: | 171 °C(lit.) |
| Density | 0.89 g/mL at 25 °C(lit.) |
| refractive index | n |
| FEMA | 3432 | ISOBUTYL 2-BUTENOATE |
| Flash point: | 131 °F |
| form | clear liquid |
| color | Colorless to Almost colorless |
| Specific Gravity | 0.89 |
| Odor | at 100.00 %. fruity dry tropical rummy ripe green pear (caramellic is the long drydown) |
| JECFA Number | 1206 |
| CAS DataBase Reference | 589-66-2(CAS DataBase Reference) |
| NIST Chemistry Reference | 2-Butenoic acid, 2-methylpropyl ester(589-66-2) |
| EPA Substance Registry System | 2-Butenoic acid, 2-methylpropyl ester (589-66-2) |
Safety information for Isobutyl 2-butenoate
| Signal word | Warning |
| Pictogram(s) |
 Flame Flammables GHS02  Exclamation Mark Irritant GHS07 |
| GHS Hazard Statements |
H226:Flammable liquids H315:Skin corrosion/irritation H319:Serious eye damage/eye irritation |
| Precautionary Statement Codes |
P210:Keep away from heat/sparks/open flames/hot surfaces. — No smoking. P233:Keep container tightly closed. P240:Ground/bond container and receiving equipment. P264:Wash hands thoroughly after handling. P264:Wash skin thouroughly after handling. P280:Wear protective gloves/protective clothing/eye protection/face protection. P370+P378:In case of fire: Use … for extinction. P403+P235:Store in a well-ventilated place. Keep cool. P501:Dispose of contents/container to..… |
Computed Descriptors for Isobutyl 2-butenoate
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