英文别名Hydroxythiohomo Sildenafil; Hydroxyhomosildenafil thione; Sulfohydroxyhomosildenafil; Thiohydroxyhomosildenafil; 5-[2-ethoxy-5-[4-(2-hydroxyethyl)piperazin-1-yl]sulfonylphenyl]-1-methyl-3-propyl-4H-pyrazolo[4,3-d]pyrimidine-7-thione; 4-[[3-(4,7-Dihydro-1-Methyl-3-propyl-7-thioxo-1H-pyrazolo[4,3-d]pyriMidin-5-yl)-4-ethoxypheny; 5-[2-Ethoxy-5-[[4-(2-hydroxyethyl)-1-piperazinyl]sulfonyl]phenyl]-1,6-dihydro-1-Methyl-3-propyl-7H-pyrazolo[4,3-d]pyriMidine-7-thione; 7H-Pyrazolo[4,3-d]pyrimidine-7-thione, 5-[2-ethoxy-5-[[4-(2-hydroxyethyl)-1-piperazinyl]sulfonyl]phenyl]-1,6-dihydro-1-methyl-3-propyl-; 5-(2-Ethoxy-5-((4-(2-hydroxyethyl)piperazin-1-yl)sulfonyl)phenyl)-1-methyl-3-propyl-1H-pyrazolo[4,3-d]pyrimidine-7(6H)-thione 
