| 4'-Ethylpropiophenone | 27465-51-6 | Intermediates | 1 |
| 4,4-Dicarboxy Stilbene | 100-31-2 | | 1 |
| 4,4-Dimethyl-3,5,8-trioxabicyclo[5.1.0]octane | 57280-22-5 | | 1 |
| 4-Amino-2-Methyl-10H-Thieno [2, 3-B] [1, 5] Benzodiazepine Hydrochloride | 138564-60-0 | Intermediates | 1 |
| 4-Amino-3-Hydroxy Benzoic Acid | 2374-03-0 | Intermediates | 1 |
| 4-Amino-3-Methoxy Benzoic Acid | 2486-69-3 | Intermediates | 1 |
| 4-Amino-3-iodo-1H-pyrazolo[3,4-d]pyrimidine | 151266-23-8 | | 1 |
| 4-Androstenedione | 63-05-8 | | 1 |
| 4-Bromo-1-chloro-2-(4-ethoxybenzyl)benzene | 461432-23-5 | Intermediates | 1 |
| 4-Bromo-2-Chloro Iodobenzene | 31928-47-9 | Intermediates | 1 |
| 4-Bromo-2-Chlorobenzonitrile | 154607-01-9 | Intermediates | 1 |
| 4-Bromo-2-Methoxyaniline | 59557-91-4 | Intermediates | 1 |
| 4-Bromomethyl-1,2-Dihydroquinoline-2-One | 4876-10-2 | Intermediates | 1 |
| 4-Chloro-2-Butanone | 6322-49-2 | Intermediates | 1 |
| 4-Chloro-2-fluoro-5-sulfamylbenzoic Acid | 4793-22-0 | | 1 |
| 4-Chloro-7-Methoxy-6-Quinolinecarboxamide | 417721-36-9 | Intermediates | 1 |
| 4-Chloro-7-tosyl-7H-pyrrolo[2,3-d]pyrimidine | 479633-63-1 | Intermediates | 1 |
| 4-Chlorocinnamic Acid | 1615-02-7 | Diagnostic agents | 1 |
| 4-Chloropyridine Hcl | 7379-35-3 | Intermediates | 1 |
| 4-Cyano Benzyl Bromide | 17201-43-3 | | 1 |
| 4-Diethylamino-2-Butyn-1-O1 | 10575-25-4 | Central Nervous System Agents | 1 |
| 4-Fluorobenzoyl Chloride | 403-43-0 | Intermediates | 1 |
| 4-Fluorobenzylamine | | Diagnostic agents | 1 |
| 4-Guanidinobenzoic Acid Hydrochloride | 42823-46-1 | Intermediates | 1 |
| 4-Hydroxy-19-nortestosterone | 4721-69-1 | Androgens | 1 |
| 4-Hydroxy-9H-Carbazole | 52602-39-8 | Central Nervous System Agents | 1 |
| 4-Hydroxytestosterone | 2141-17-5 | Androgens | 1 |
| 4-Methoxybenzyl Chloride | 824-94-2 | Diagnostic agents | 1 |
| 4-Methyl Benzonitrile | 104-85-8 | | 1 |
| 4-Nitrophenylaceticacid | 104-03-0 | Intermediates | 1 |
| 4-Pentyn-1-Ol | 5390-04-5 | Intermediates | 1 |
| 4-Phenylbutan-1-Ol | 3360-41-6 | Intermediates | 1 |
| 4-Toluenesulphonic Acid Propyl Ester | 599-91-7 | Intermediates | 1 |
| 5 Chloro Benzimidazole | 4857-06-1 | Anthelmintics | 1 |
| 5 Nitro Benzimidazole | | Anthelmintics | 1 |
| 5-(1H-Pyrrol-1-yl)-1,3-dihydro-2H-benzimidazole-2-thione | 172152-53-3 | Antineoplastics | 1 |
| 5-(2-Aminopropyl)-2 Methoxybenzenesulfonamide | 112244-38-9 | Intermediates | 1 |
| 5-(4-Phenoxyphenyl)-7H-pyrrolo[2,3-d]pyrimidin-4-ylamine | 330786-24-8 | | 1 |
| 5-[(3,4-Dihydro-4-Oxo-1-Phthalazinyl)Methyl]-2-Fluorobenzonitrile | 1021298-68-9 | Intermediates | 1 |
| 5-amino-1H-benzimidazole-2-thiol | 2818-66-8 | Anthelmintics | 1 |