| Compounds | CAS | Molecular formula | Odor description | Origination |
|---|---|---|---|---|
| Hexanal | 66-25-1 | Green, grassy, fatty | Lipid degradation or decarboxylation | |
| 2-Nonenal | 18829-56-6 | Fatty, waxy | Oxidation of arachidonic acid | |
| Octanal | 124-13-0 | Pungent, orange | Oxidation of fatty acids | |
| 2-Decenal | 3913-81-3 | Metallic, soap | Thermal oxidation of tallow | |
| Decanal | 112-31-2 | Green, oily | Autoxidation of unsaturated fatty acids |