Products
| Rank | Product Name | CAS No. |
| 41 | 5-Ethyl Uracil | 4212-49-1 |
| 42 | 2-Amino-5-bromopyrimidine | 7752-82-1 |
| 43 | 2-(1-Piperazinyl)pyrimidine | 20980-22-7 |
| 44 | 5-Bromo-2-hydroxypyrimidine | 38353-06-9 |
| 45 | 5-Bromo-2-methoxypyrimidine | 14001-66-2 |
| 46 | 5-Bromo-2,4-dichloropyrimidine | 36082-50-5 |
| 47 | 5-Bromo-2-chloropyrimidine | 32779-36-5 |
| 48 | 2-Hydroxy-5-nitropyrimidine | |
| 49 | 2-Bromopyrimidine | 4595-60-2 |