N-Nitroso Sildenafil
| Name of Impurity/Standard | N-Nitroso Sildenafil |
| CAS No. | NA |
| Molecular Formula | C22H29N7O5S |
| Molecular Weight | 503.6 g/mol |
| Synonyms: 5-(2-Ethoxy-5-((4-methylpiperazin-1-yl)sulfonyl)phenyl)-1-methyl-6-nitroso-3-propyl-1,6-dihydro-7H-pyrazolo[4,3-d]pyrimidin-7-one | |