479073-80-8

Thiohomosildenafil Sildenafil Impurity 43 Thiohomosildenafil Solution, 100ppm 5-[2-Ethoxy-5-[(4-ethyl-1-piperazinyl)sulfonyl]phenyl]-1,6-dihydro-1-Methyl-3-propyl-7H-pyrazolo[4,3-d]pyriMidine-7-thione 1-[[3-(4,7-Dihydro-1-Methyl-3-propyl-7-thioxo-1H-pyrazolo[4,3-d]pyriMidin-5-yl)-4-ethoxyphenyl]sulfonyl]-4-ethyl-piperazine 7H-Pyrazolo[4,3-d]pyrimidine-7-thione, 5-[2-ethoxy-5-[(4-ethyl-1-piperazinyl)sulfonyl]phenyl]-1,6-dihydro-1-methyl-3-propyl-