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5-[2-Ethoxy-5-[(4-methyl-4- oxidopiperazin-1-yl)sulfonyl] phenyl]-1-methyl-3-propyl-1,6- dihydro-7H-pyrazolo[4,3-d] pyrimidin-7-one 5-[2-Ethoxy-5-[(4-methyl-4- oxidopiperazin-1-yl)sulfonyl] phenyl]-1-methyl-3-propyl-1,6- dihydro-7H-pyrazolo[4,3-d] pyrimidin-7-one
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Bis-1,4-[4-ethoxy-3-(6,7-dihydro1-methyl-7-oxo-3-propyl-1Hpyrazolo [4,3-d] pyrimidin-5-yl)- benzenesulfonyl] piperazine Bis-1,4-[4-ethoxy-3-(6,7-dihydro1-methyl-7-oxo-3-propyl-1Hpyrazolo [4,3-d] pyrimidin-5-yl)- benzenesulfonyl] piperazine
1-[[3-(4,7-Dihydro-1-methyl-7- oxo-3-propyl-1H-pyrazolo[4,3- d]-pyrimidin-5-yl)-4- ethoxyphenyl]sulfonyl]-4- ethylpiperazine - Image 1
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1-[[3-(4,7-Dihydro-1-methyl-7- oxo-3-propyl-1H-pyrazolo[4,3- d]-pyrimidin-5-yl)-4- ethoxyphenyl]sulfonyl]-4- ethylpiperazine

API : Sildenafil Citrate

CAS NO : NA

IMPURUTY NAME : Sildenafil N-Ethyl impurity

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