| Pia - Pio | Nummer |
| Picietel | # 227 ++ |
| Picloram | 16 |
| Picloxydine | |
| Picolin | |
| Picolin-afen | |
| Picolin-aldehyd | |
| Picolin-N-oxid | |
| Picolylamin | 2 / 19 |
| Picolylchlorid Hydrochlorid | 16 |
| Picoperin | 13 |
| Picotamid | |
| Picoxystrobin | 16 / 18 |
| Picrosid - I | 16 |
| Picrosid - II | |
| Picrotin | 14 |
| Picrotoxin | 8 |
| Picrotoxinin | |
| Pieris japonica | 14 |
| Pifarnin | 16 / 13 |
| Pifoxime | |
| Pigment Green | xxx |
| Pigmentgelb | 2 / 12 / 18 / 19 / 19a |
| Pigmentgelb 83 | 16 |
| Pikraminsäure | 16 / 13 |
| Pikrate | 14 / 13 |
| Pikrinsäure | 14 / 10 / 13 / 18 - # 100 Aber / # (19a) / # 21 Haut / # 57 Haut |
| Pikrinsäure, Salze | 14 / 13 |
| Pildralazin | 16 / 13 |
| Pilocarpin | 4 / 19 |
| Pilocarpin-Salze | |
| Pilocarpin-hydrochlorid | |
| Pilocarpin-nitrat | |
| Pilocarpus jaborandi Holmes | 14 |
| Pilosin | |
| Pimafucin | |
| Pimaricin | |
| Pimefylline | 16 |
| Pimelinsäure | 13 |
| Pimelinsäure-di-imidsäure-di-methylester Dihydrochlorid | 16 / 13 |
| Pimelinsäure-di-nitril | 7 / 16 |
| Pimeloyl-chlorid | 2 / # 40 Tränen |
| Piminodin | 14 |
| Pimozid | xxx |
| Pinacea-Derivate | 18 |
| Pinacidil | 16 / 13 |
| Pinacolin | 16 |
| Pinacolyl-alkohol | 10 |
| Pinacyano-liodid | 14 / 7 / 18 |
| Pinakolon | 16 |
| Pinanhydro-peroxid | 11 / 19 |
| (-)-3-Pinanol | 16 |
| 2-Pinanyl-hydro-peroxid | 11 / 19 |
| Pinaverium-bromid | 16 |
| Pinazepam | 14 |
| Pindolol | xxx |
| Pindon | 14 |
| α-Pinen | 16 / selten 18 / # 21 Haut / # 57 Haut |
| (-)-α- / (+)-α- / 1-α- Pinen | 16 / selten 18 |
| β-Pinen | |
| Pinselschimmel | Gelegentlich 18 |
| Pinus sylvestris | 14 |