Trans-2-Nonenal
Aroma Chemical CAS 18829-56-6
A fatty green note with a cucumber character and a soft aldehydic citrus facet.
Odor profile
| Descriptor 1 | Green |
| Descriptor 2 | Cucumber |
| Descriptor 3 | Oily |
| Impact Level | Very High (estimated) |
| Tenacity2 | 8 h |
2 Source: The Good Scents Company
Identification
| CAS Number | 18829-56-6 |
| INCI Name | Trans-non-2-enal |
| Category | Aroma Chemical |
| Formula | C9H16O |
| Mol. Weight | 140.22 |
| IUPAC Name | (E)-non-2-enal |
| InChIKey | BSAIUMLZVGUGKX-BQYQJAHWSA-N |
Synonyms
(E)-cucumber aldehyde natural; (E)-heptylidene acetaldehyde; (E)-3-hexyl acrolein; (E)-3-hexyl-2-propenal; (2E)-non-2-enal; (E)-non-2-enal; trans-non-2-enal; trans-2-nonen-1-al; (E)-2-nonen-1-al; (2E)-nonenal; (2E)-2-nonenal; (E)-2-nonenal; T2 nonenal; trans-2-nonenal 1% in ethanol natural; trans-2-nonenal 1% in triethyl citrate natural; trans-2-nonenal 10% in liponate natural; trans-2-nonenal natural 1% in ETOH (EU & US natural); trans-2-nonenal natural 5% in ETOH (EU & US natural); trans-2-nonenal natural 5% in natural ethyl acetate (EU & US natural); 2-nonenal, (2E)-; 2-nonenal, (E)-
Physical and chemical data
| Boiling Point | 189 °C |
| Flash Point | 84.44 °C |
| Density | 0.85500 |
| Refractive Index | 1.45400 |
| Vapor Pressure | 0.256000 mmHg @ 25.00 C. (est) |
| LogP | 3.319 |
| Solubility | alcohol; dipropylene glycol; fixed oils |
| 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.