200575-15-1

200575-15-1 Sildenafil Impurity 74 4-[[2-Ethoxy-5-[(4-methyl-1-piperaz 4-[[2-Ethoxy-5-[(4-methyl-1-piperazinyl)-sulfonyl]benzoyl]am 4-[2-Ethoxy-5-(4-methyl-1-piperazinylsulfonyl)benzamido]-1-3-propyl-1H-pyrazole-5-carboxamide 4-[2-ETHOXY-5-(4-METHYLPIPERAZINE-1-SULFONYL)BENZAMIDO]-1-METHYL-3-PROPYLPYRAZOLE-5-CARBOXAMIDE 4-[2-Ethoxy-5-(4-methyl-1-piperazinylsulfonyl)benzamido]-1-methyl-3-propyl-1H-pyrazole-5-carboxamide 4-[[2-ethoxy-5-(4-methylpiperazin-1-yl)sulfonylbenzoyl]amino]-2-methyl-5-propylpyrazole-3-carboxamide 4-(2-Ethoxy-5-((4-methylpiperazin-1-yl)sulfonyl)benzamido)-1-methyl-3-propyl-1H-pyrazole-5-carboxamide 4-[[2-ethoxy-5-[(4-methyl-1-piperazinyl)sulfonyl]benzoyl]amino]-1-methyl-3-propyl-1h-pyrazole-5-carboxamide 1H-PYRAZOLE-5-CARBOXAMIDE, 4-[[2-ETHOXY-5-[(4-METHYL-1-PIPERAZINYL)SULFONYL]BENZOYL]AMINO]-1-METHYL-3-PROPYL- 1H-Pyrazole-5-carboxamide, 4-[[2-Ethoxy-5-[(4-methyl-1-piper azinyl)sul fonyl]benzoyl]amino]-1-methyl-3-n-propyl 4-[[[2-ethoxy-5-[(4-methyl-1-piperazinyl)sulfonyl]phenyl]-oxomethyl]amino]-2-methyl-5-propyl-3-pyrazolecarboxamide Sildenafil Impurity 21/4-[[2-ethoxy-5-(4-methylpiperazin-1-yl)sulfonylbenzoyl]amino]-2-methyl-5-propylpyrazole-3-carboxamide