2-Methylbutyraldehyde
Aroma Chemical Top Note CAS 96-17-3
A roasted note with a cocoa and malty character and a soft coffee facet. Musty and fermented, it adds a nutty depth in traces.
Odor profile
| Note | Top Note |
| Descriptor 1 | Gourmand |
| Descriptor 2 | Cocoa |
| Descriptor 3 | Coffee |
| Tenacity2 | 1 h |
2 Source: The Good Scents Company
Identification
| CAS Number | 96-17-3 |
| INCI Name | 2-methylbutyraldehyde |
| Category | Aroma Chemical |
| Formula | C5H10O |
| Mol. Weight | 86.13 |
| IUPAC Name | 2-methylbutanal |
| InChIKey | BYGQBDHUGHBGMD-UHFFFAOYSA-N |
Synonyms
acetaldehyde, ethylmethyl-, butanal, 2-methyl-, butyraldehyde, 2-methyl-, 2-ethyl propanal, 2-ethylpropanal, 2-formyl butane, 2-methyl butanal, alpha-methyl butanal, alpha-methyl butyraldehyde, nat.2-methyl butyraldehyde, 2-methyl butyraldehyde natural, alpha-methyl butyric aldehyde, methyl ethyl acetaldehyde, 2-methyl-1-butanal, a-2-methyl-N-butanal, alpha-2-methyl-N-butanal, 2-methylbutanal, a-methylbutanal, a-methylbutyraldehyde, 2-methylbutyraldehyde 99%, (naturals), 2-methylbutyraldehyde natural, 2-methylbutyric aldehyde, a-methylbutyric aldehyde, alpha-methylbutyric aldehyde, methylethyl acetaldehyde, methylethylacetaldehyde
Physical and chemical data
| Boiling Point | 93 °C |
| Flash Point | 4.44 °C |
| Density | 0.80000 |
| Refractive Index | 1.38600 |
| Vapor Pressure | 49.317001 mmHg @ 25.00 C. (est) |
| LogP | 1.267 |
| Solubility | alcohol; water, 1.123e+004 mg/L @ 25 C (est); alkalis |
| Appearance | colorless to pale 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.