3-Methyl-2-Butenal
Aroma Chemical CAS 107-86-8
A sweet fruity note with an almond and cherry character and a soft nutty facet. Pungent and natural, it adds a fruity lift to compositions.
Odor profile
| Descriptor 1 | Aldehydic |
| Descriptor 2 | Fruity |
| Descriptor 3 | Nutty |
Identification
| CAS Number | 107-86-8 |
| INCI Name | 2-isopentenal |
| Category | Aroma Chemical |
| Formula | C5H8O |
| Mol. Weight | 84.12 |
| IUPAC Name | 3-methylbut-2-enal |
| InChIKey | SEPQTYODOKLVSB-UHFFFAOYSA-N |
Synonyms
2-butenal, 3-methyl-, crotonaldehyde, 3-methyl-, 3,3-dimethyl acryl aldehyde, 3,3-dimethyl-acrylaldehyde, 3,3-dimethylacrolein, b,b-dimethylacrolein, 3,3-dimethylacrylaldehyde, 3-methyl crotonaldehyde, 3-methyl-2-buten-1-al, 3-methyl-2-crotonaldehyde, 3-methylbut-2-enal, 3-methylcrotonaldehyde, b-methylcrotonaldehyde, 2-iso pentenal, prenal, senecialdehyde, senecioaldehyde
Physical and chemical data
| Boiling Point | 133.00 °C |
| Flash Point | 33.33 °C |
| Density | 0.87600 |
| Refractive Index | 1.46000 |
| Vapor Pressure | 8.253000 mmHg @ 25.00 C. (est) |
| LogP | 1.190 |
| Solubility | alcohol; water, slightly; water, 1.342e+004 mg/L @ 25 C (est) |
| Appearance | colorless to yellow 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.