Standards; Pharmaceutical/API Drug Impurities/Metabolites;
应用:
3-(6,7-dihydro-1-methyl-7-oxo-3-propyl-1H-pyrazolo[4,3-d]pyrimidin-5-yl)-4-ethoxy-N-[2-(methylamino)ethyl]-Benzenesulfonamide is a Sildenafil derivative. Sildenafil is an orally active type 5 cGMP phosphodiesterase inhibitor.
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