Isobutyl 2-Butenoate
Aroma Chemical Heart Note CAS 589-66-2
A fruity note with a tropical pear character and a soft rummy facet. Green and natural, it adds a caramellic drydown to compositions.
Odor profile
| Note | Heart Note |
| Descriptor 1 | Fruity |
| Descriptor 2 | Melon |
| Descriptor 3 | Tropical-Fruit |
| Impact Level | Medium |
| Tenacity2 | 137 h |
2 Source: The Good Scents Company
Identification
| CAS Number | 589-66-2 |
| Category | Aroma Chemical |
| Formula | C8H14O2 |
| Mol. Weight | 142.20 |
| IUPAC Name | 2-methylpropyl (E)-but-2-enoate |
| InChIKey | XDOWKOALJBOBBL-SNAWJCMRSA-N |
Synonyms
2-butenoic acid 2-methyl propyl ester, 2-butenoic acid 2-methylpropyl ester, 2-butenoic acid, 2-methylpropyl ester, iso butyl 2-butenoate (crotonate), iso butyl but-2-enoate, iso butyl crotonate, iso butyl-2-butenoate, iso-butyl-crotonate FCC, crotonic acid isobutyl ester, 2-methyl propyl 2-butenoate, 2-methyl propyl crotonate, 2-methylpropyl but-2-enoate
Physical and chemical data
| Boiling Point | 171.00 °C |
| Flash Point | 55.00 °C |
| Density | 0.88300 |
| Refractive Index | 1.42600 |
| Vapor Pressure | 1.788000 mmHg @ 25.00 C. (est) |
| LogP | 2.669 |
| Solubility | alcohol; fixed oils; propylene glycol |
| Appearance | colorless clear liquid |
All figures on this page are guide values collected from public reference works and supplier declarations. They differ between batches, origins and qualities. The data sheet of your own supplier is always the authoritative document for the material you actually use.