| Name | CAS No. |
| Peppermint, ext. | 84082-70-2 |
| PHENOLPHTHALEIN | 5768-87-6 |
| potassium permanganate | 7722-64-7 |
| Prasedymium(III) oxide | 11113-81-8 |
| PROTEASE | 9001-92-7 |
| Polymethyl-acrylate paste | 9003-21-8 |
| Potassium nitrite | 7758-09-0 |
| Phenacetin | 62-44-2 |
| PROCAINAMIDE HYDROCHLORIDE | 7699-39-0 |
| P-NITROSOTOLUENE | 623-11-0 |
| Phosphorus,red | 7723-14-0 |
| Phosphorus trichloride | 7719-12-2 |
| piroxicam usp | 36322-90-4 |
| Piperitol | 52151-92-5 |
| Potassium pyrosulfate | 7790-62-7 |