5-Ethyl-3,5-dihydro-2-[5-[[4-(2-hydroxyethyl)-1-piperazinyl]sulfonyl]-2-propoxyphenyl]-7-propyl-4H-pyrrolo[3,2-D]pyrimidin-4-one hydrochloride (1:2)862189-96-6100 % similar Mirodenafil862189-95-596 % similar Vardenafil hydrochloride224785-91-542 % similar Vardenafil dihydrochloride224789-15-541 % similar Vardenafil hydrochloride trihydrate330808-88-340 % similar Vardenafil224785-90-439 % similar Sildenafil139755-83-237 % similar Pseudovardenafil224788-34-536 % similar o-Desethyl sildenafil139755-91-233 % similar Sildenafil citrate171599-83-032 % similar Aildenafil496835-35-932 % similar Udenafil268203-93-631 % similar