| CAS No | 1391053-95-4 | 
| Mol. Formula | C23H32N6O4S | 
| Mol. Weight | 488.6 | 
| Inventory. Status | Custom Synthesis | 
| CAS Number | 1391053-95-4 | 
| Molecular Formula | C23H32N6O4S | 
| Molecular Weight | 488.6 | 
| Inventory Status | Custom Synthesis | 
| Synonyms | Sildenafil Impurity A ; Sildenafil USP RC A ; Sildenafil Isobutyl Analog ; 5-[2-Ethoxy-5-[(4-methyl-4-oxido-1-piperazinyl)sulfonyl]phenyl]-1,6-dihydro-1-methyl-3-(2-methylpropyl)-7H-pyrazolo[4,3-d]pyrimidin-7-one | 
                        | CAS Number | 1391053-95-4 | 
| Molecular Formula | C23H32N6O4S | 
| Molecular Weight | 488.6 | 
| Inventory Status | Custom Synthesis | 
| Synonyms | Sildenafil Impurity A ; Sildenafil USP RC A ; Sildenafil Isobutyl Analog ; 5-[2-Ethoxy-5-[(4-methyl-4-oxido-1-piperazinyl)sulfonyl]phenyl]-1,6-dihydro-1-methyl-3-(2-methylpropyl)-7H-pyrazolo[4,3-d]pyrimidin-7-one | 
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