| Nandrolone phenpropionate | 434-22-0 | Androgens | 2 |
| Naringenin | 480-41-1 | Bioflavonoids | 2 |
| Natural calcium carbonate (API) | 1317-65-3 | Calcium salts | 2 |
| Nelarabine | 121032-29-9 | Purine derivatives | 2 |
| Nelfinavir | 159989-64-7 | Anti HIV | 2 |
| Neohesperidin dihydrochalcone | | Astringents | 2 |
| Nicotinamide adenine Dinucleotide | 946075-13-4 | | 2 |
| Nifuratel | 4936-47-4 | Antimicrobial agents | 2 |
| Niraparib | 1038915-60-4 | | 2 |
| Nitenpyram | 537-42-8 | | 2 |
| Nivolumab | 946414-94-4 | Monoclonal antibodies | 2 |
| Noopept | 182760-06-1 | | 2 |
| Noroxymorphone hydrochloride | 52446-24-9 | Opioid analgesics | 2 |
| Novobiocin | 303-81-1 | Antibacterials | 2 |
| Nutrient Broth | | Intravenous anesthetics | 2 |
| Oclacitinib | 1208319-26-9 | | 2 |
| Olsalazine | 15722-48-2 | Aminosalicylates | 2 |
| Omega-3-carboxylic acids | | Lipid-lowering agents | 2 |
| Oxalic Acid | 144-62-7 | Keratolytica | 2 |
| Oxiracetam | | | 2 |
| Oxitriptan | 4350-09-8 | Serotonin receptor agonists | 2 |
| Oxymetholone | 434-07-1 | Androgens | 2 |
| P-Aminophenol | | Analgesics | 2 |
| P-Aminophenol | | Analgesics | 2 |
| PEG 400 | 25322-68-3 | Solvents | 2 |
| Palmitoyl Tetrapeptide | 7-221227-05-0 | | 2 |
| Palmitoylethanolamide | 544-31-0 | Analgesics | 2 |
| Parecoxib Sodium intermediates | 37928-17-9 | | 2 |
| Paromomycin | 7542-37-2 | Aminoglycosides | 2 |
| Pasireotide | 396091-73-9 | Somatostatin Analogs | 2 |
| Pazufloxacin | 127045-41-4 | Quinolones | 2 |
| Pentosan Polysulfate Sodium | | Mucopolysaccharide polysulfates | 2 |
| Perospirone | 150915-41-6 | Atypical antipsychotics | 2 |
| Phenibut | 1078-21-3 | Central Nervous System Agents | 2 |
| Phenindione | 83-12-5 | Vitamins | 2 |
| Phenyl salicylate | 23327-57-3 | NSAIDs | 2 |
| Phloroglucinol | 108-73-6 | | 2 |
| Phosphatidyl serine | 1446756-47-3 | | 2 |
| Pinaverium Bromide | 60719-84-8 | | 2 |
| Piretanide | 55837-27-9 | Diuretics | 2 |