2,3-Dimethylpyrazine
Aroma Chemical Top Note CAS 5910-89-4
A powerful roasted nutty note with cocoa, coffee and caramellic facets and a savoury meaty nuance. In trace amounts it evokes toasted nut skin and roasted beans, adding depth to gourmand accords.
Odor profile
| Note | Top Note |
| Descriptor 1 | Food-like |
| Descriptor 2 | Nutty |
| Descriptor 3 | Roasted |
| Odor Impact1 | 1540 |
| Tenacity1 | 0.2 h |
| Tenacity2 | 3 h |
1 Source: PerfumersWorld
2 Source: The Good Scents Company
Both tenacity figures are blotter life. The two labs use different evaluation protocols, so the numbers are not directly comparable — read them as two independent readings, not as a contradiction.
Identification
| CAS Number | 5910-89-4 |
| Category | Aroma Chemical |
| Formula | C6H8N2 |
| Mol. Weight | 108.14 |
| IUPAC Name | 2,3-dimethylpyrazine |
| InChIKey | OXQOBQJCDNLAPO-UHFFFAOYSA-N |
Synonyms
2,3- dimethyl-1,4-diazine, dimethyl-2,3 pyrazine, 2,3- dimethyl-pyrazine, 2,3- dimethylpyrazin, dimethylpyrazine, 2,3- dimethylpyrazine, pyrazine, dimethyl, 2 3-Dimethyl pyrazine, 2,3-dimethyl pyrazine FCC, 2,3-dimethyl pyrazine natural 5% in ethyl alcohol, 2,3-dimethyl pyrazine natural 5% in ethyl alcohol, kosher, 2,3-dimethyl pyrazine, kosher, 2,3-dimethyl-1,4-diazine, 2,3-dimethylpyrazin, 2, 3 dimethylpyrazine, kosher, pyrazine, 2,3-dimethyl-, pyrazine, dimethyl-, 2,3-dimethyl-pyrazine, 2,3-dimethylpyrazine
Physical and chemical data
| Boiling Point | 156.0 °C |
| Flash Point | 53.33 °C |
| Density | 0.997 |
| Refractive Index | 1.501 |
| Vapor Pressure | 1.5 [mmHg] |
| LogP | 0.5 |
| Solubility | soluble in water, organic solvents, oils |
| Appearance | Colorless liquid with a pleasant odor; [Alfa Aesar MSDS] |
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.