| Label | Id | |
|---|---|---|
| Proxan | 82248 | |
| Prumycin | 224120 | |
| Ptaeroglycol | 8624 | |
| Purpuromycin | 224047 | |
| Pydanon | 82249 | |
| Pyrenulafuran | 200246 | |
| Pyrocoll | 172429 | |
| Pyrrolidino-[1,2E]-4H-2,4-dimethyl-1,3,5-dithiazine | 173249 | |
| Quinaglute | 182417 | |
| Quinolactacide | 224242 | |
| R-H | 142491 | |
| RK-1355A | 205124 | |
| RK-270A | 212249 | |
| Rabenchromenone | 224005 | |
| Rabenzophenone | 224001 |