| NO. | Name | CAS No. | Order |
| 1 | 6- (5-Chloro-2-pyridyl)-6,7-dihydro-7-hydroxy-5H-pyrrolo[3,4-b]pyrazin-5-one | 43200-81-3 | Order |
| 2 | 6- (5-Chloro-2-pyridyl)-5H-pyrrolo[3,4-b]pyrazine-5,7(6H)-dione | 43200-82-4 | Order |
| 3 | Pyrazin 2,3-dicarboxylic acid anhydride | 4744-50-7 | Order |
| 4 | Pyrazin 2,3-Dicarboxylic acid | 89-01-0 | Order |
Total 4 Records |
