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De(Methypiperazinyl)SildenafilDiMur???

De(Methypiperazinyl)SildenafilDiMur??? ??? ???

???(??):: De(methypiperazinyl) Sildenafil Dimer;Sildenafil Monosulfone Dimer Impurity;De(Methypiperazinyl) Sildenafil DiMer IMpurity;5-[2-Ethoxy-5-[4-[4-ethoxy-3-(1-Methyl-7-oxo-3-propyl-4,7-dihydro-1H-pyrazolo[4,3-d]pyriMidin-5-yl)phenyl]sulfonyl]phenyl]-1-Methyl-3-n-propyl-1,6-dihydro-7H-pyrazolo[4,3-d]pyriMidin-7-one;Sildenafil Impurity 7/De(methypiperazinyl) Sildenafil Dimer Impurity/5-[2-Ethoxy-5-[4-[4-ethoxy-3-(1-methyl-7-oxo-3-propyl-4,7-dihydro-1H-pyrazolo[4,3-d]pyrimidin-5-yl)phenyl]sulfonyl]phenyl]-1-methyl-3-n-propyl-1,6-dihydro-7H-pyrazolo[4,3-d]pyrimidin-7-o;Sildenafil Impurity 7/De(methypiperazinyl) Sildenafil Dimer Impurity/5-[2-Ethoxy-5-[4-[4-ethoxy-3-(1-methyl-7-oxo-3-propyl-4,7-dihydro-1H-pyrazolo[4,3-d]pyrimidin-5-yl)phenyl]sulfonyl]phenyl]-1-methyl-3-n-propyl-1,6-dihydro-7H-pyrazolo[4,3-d]pyrimidin-7-one

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De(Methypiperazinyl)SildenafilDiMur??? ??

White Solid

A related dimeric impurity of Sildenafil (S435000).

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1,3-????-2,4-???????? Sildenafil citrate 4-Amino-1-methyl-3-propyl-5-pyrazolecarboxamide Sildenafil EP IMpurity D DESMETHYL SILDENAFIL Sildenafil impurity Sildenafil DiMer IMpurity SILDENAFIL N-OXIDE 5-[2-Ethoxy-5-[(4-Methyl-4-oxido-1-piperazinyl)sulfonyl]phenyl]-1,6-dihydro-1-Methyl-3-(2-Methylpropyl)-7H-pyrazolo[4,3-d]pyriMidin-7-one Desethyl Sildenafil 4-(2-Ethoxy benzamido)-1-methyl-3-n-propyl pyrazole-5-carboxamide. 5-chloro-2-ethoxybenzoic acid 7H-Pyrazolo[4,3-d]pyrimidin-7-one, 5-(5-chloro-2-ethoxyphenyl)-1,6-dihydro-1-methyl-3-propyl-