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For each database, the percentage of molecules that do not contain rings, the maximum number of rings found in a single compound, and the population of molecules that possess at least one 5- or 6-node.
| Database | % no rings | Maximum rings | > 4-nodes population |
|---|---|---|---|
| ChemNavigator | 0.245 | 62 | 95 |
| DNP | 8.633 | 32 | 61 |
| Drugs | 6.492 | 18 | 0 |
| PubChem | 2.466 | 165 | 6488 |
| PC actives | 3.837 | 23 | 198 |
| DSSTox | 25.057 | 11 | 0 |
| WOMBAT | 1.641 | 34 | 0 |
| merged | 1.225 | 165 | 6593 |
| GDB | 15.414 | 6 | 0 |
