
| NO. | Product Name | CAS No. |
| 1 | 4-Hydroxy-5,6-dimethyl-3-nitro-2(1H)-pyridinone | 163803-34-7 |
| 2 | 4-Hydroxy-2-oxopyrrolidine-N-acetamide | 62613-82-5 |
| 3 | 4-Fluorothiophenol | 371-42-6 |
| 4 | 4-Fluoro-7-bromoindole | 292636-09-0 |
| 5 | 4-Fluoro-3-nitropyridine | 115812-96-9 |
| 6 | 4-Fluoro-3-nitroaniline | 364-76-1 |
| 7 | 4-Ethoxy-3-hydroxy-2-pyridinecarboxylic acid | 321596-51-4 |
| 8 | 4-Dimethylaminopyridine | 1122-58-3 |
| 9 | 4-Cyano-3-pyridinecarboxylic acid | 827616-51-3 |
| 10 | 4-Chloropyrrolo[2,3-d]pyrimidine; 4-Chloro-1H-pyrrolo[2,3-d]pyrimidine; 6-Chloro-7-deazapurine | 3680-69-1 |
| 11 | 4-chloropyrimidin-5-amine | / |
| 12 | 4-Chloropyrido[4,3-d]pyrimidine | 89583-92-6 |
| 13 | 4-Chloropyrido[3,4-d]pyrimidine | 51752-67-1 |
| 14 | 4-Chloropyrido[3,2-d]pyrimidine | / |
| 15 | 4-Chloropyrido[2,3-d]pyrimidine | 28732-79-8 |
| 16 | 4-Chlorofuro[2,3-d]pyrimidine | 918340-51-9 |
| 17 | 4-chloro-7-azaindole | 55052-28-3 |
| 18 | 4-Chloro-6-methoxy-1,5-naphthyridine | 249889-68-7 |
| 19 | 4-Chloro-6-iodo-2-pyridinamine | 856169-93-2 |
| 20 | 4-Chloro-5-pyrimidinamine HOAc | / |
