| Label | Id | |
|---|---|---|
| phenoxenium | 52245 | |
| phenylacetaldehyde | 16424 | |
| phenylhydrazine | 27924 | |
| phospholipid | 16247 | |
| phosphonoacetaldehyde | 18124 | |
| phytosphingosine(1+) | 64124 | |
| phytosteroid | 26124 | |
| picoperine | 135243 | |
| pinoquercetin | 8224 | |
| pinoxaden | 83524 | |
| piperacillin(1-) | 52433 | |
| piperidin-2-imine | 39824 | |
| piperonal | 8240 | |
| pipobroman | 8242 | |
| pirenzepine | 8247 |