| Bridged-Ring Compounds (7 tracked articles) |
| Fused-Ring Compounds (1,247 tracked articles) |
| Macrocyclic Compounds (57 tracked articles) |
| Polycyclic Aromatic Hydrocarbons (82 tracked articles) |
| Polycyclic Sesquiterpenes (2 tracked articles) |
| Spiro Compounds (6 tracked articles) |