| CAS No | 1094598-75-0 | 
| Mol. Formula | C22H30N6O5S | 
| Mol. Weight | 490.58 | 
| Inventory. Status | In Stock | 
| CAS Number | 1094598-75-0 | 
| Molecular Formula | C22H30N6O5S | 
| Molecular Weight | 490.58 | 
| Inventory Status | In Stock | 
| Synonyms | Sildenafil Impurity B ; Sildenafil N-Oxide ; 5-[2-Ethoxy-5-[(4-methyl-4-oxido-1-piperazinyl)sulfonyl]phenyl]-1,6-dihydro-1-methyl-3-propyl-7H-pyrazolo[4,3-d]pyrimidin-7-one ; 1-methyl-4-[[4-ethoxy-3-(1-methyl-7-oxo-3-propyl-6,7-dihydro-1H-pyrazolo[4,3-d]pyrimidin-5-yl)phenyl]sulfonyl]piperazine 1-oxide, | 
                        | CAS Number | 1094598-75-0 | 
| Molecular Formula | C22H30N6O5S | 
| Molecular Weight | 490.58 | 
| Inventory Status | In Stock | 
| Synonyms | Sildenafil Impurity B ; Sildenafil N-Oxide ; 5-[2-Ethoxy-5-[(4-methyl-4-oxido-1-piperazinyl)sulfonyl]phenyl]-1,6-dihydro-1-methyl-3-propyl-7H-pyrazolo[4,3-d]pyrimidin-7-one ; 1-methyl-4-[[4-ethoxy-3-(1-methyl-7-oxo-3-propyl-6,7-dihydro-1H-pyrazolo[4,3-d]pyrimidin-5-yl)phenyl]sulfonyl]piperazine 1-oxide, | 
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