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基于 PubChem CID 索引，支持名称 / 同义词 / CAS / SMILES 检索。
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Sildenafil Citrate Imp. C (EP); Sildenafil Imp. C (EP); 5-[2-Hydroxy-5-[(4-methylpiperazin-1-yl)sulfonyl]phenyl]-1-methyl-3-propyl-6,7-dihydro-1H-pyrazolo[4,3-d]pyrimidin-7-one; Desethylsildenafil; Sildenafil Citrate Impurity C; Sildenafil Impurity C CAS 139755-91-2 PubChem CID 135565516
CCCc1nn(C)c2c(=O)[nH]c(-c3cc(S(=O)(=O)N4CCN(C)CC4)ccc3O)nc12 -
5-[2-Hydroxy-5-[(4-methylpiperazin-1-yl)sulfonyl]phenyl]-1-methyl-3-propyl-1,6-dihydro-7H-pyrazolo[4,3-d]pyrimidin-7-one (Desethylsildenafil) CAS 139755-91-2 PubChem CID 137241600
CCCC1=C2N=C(c3cc(S(=O)(=O)N4CCN(C)CC4)ccc3O)NC(=O)C2N(C)N1 -
5-[2-hydroxy-5-(4-methylpiperazin-1-yl)sulfonyl-phenyl]-1-methyl-3-propyl-3,3a,4,5,6,7a-hexahydro-2H-pyrazolo[4,3-d]pyrimidin-7-one CAS 139755-91-2 PubChem CID 138059368
CCCC1NN(C)C2C(=O)NC(c3cc(S(=O)(=O)N4CCN(C)CC4)ccc3O)NC12