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5-[2-ethoxy-5-(4-methyl-4-oxido-piperazin-4-ium-1-yl)sulfonyl-phenyl]-1-methyl-3-propyl-3,3a,4,5,6,7a-hexahydro-2H-pyrazolo[4,3-d]pyrimidin-7-one CAS 1094598-75-0 PubChem CID 74395980
CCCC1NN(C)C2C(=O)NC(c3cc(S(=O)(=O)N4CC[N+](C)([O-])CC4)ccc3OCC)NC12 -
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 (Sildenafil N-Oxide) CAS 1094598-75-0 PubChem CID 87356708
CCCc1nn(C)c2c1N=C(c1cc(S(=O)(=O)N3CCN(C)CC3)ccc1OCC)[NH+]([O-])C2=O -
Sildenafil Citrate Imp. B (EP); Sildenafil Imp. B (EP); 5-[2-Ethoxy-5-[(4-methyl-4-oxidopiperazin-1-yl)sulfonyl]phenyl]-1-methyl-3-propyl-6,7-dihydro-1Hpyrazolo[4,3-d]pyrimidin-7-one; Sildenafil N-Oxide; Sildenafil Citrate Impurity B; Sildenafil Impurity B CAS 1094598-75-0 PubChem CID 135565954
CCCc1nn(C)c2c(=O)[nH]c(-c3cc(S(=O)(=O)N4CC[N+](C)([O-])CC4)ccc3OCC)nc12 -
CCCC1=NN(C)C2C(=O)N=C(c3cc(S(=O)(=O)N4CC[N+](C)([O-])CC4)ccc3OCC)N=C12