英文名称
5-(5-(((3S,5R)-3,5-Dimethylpiperazin-1-yl)sulfonyl)-2-ethoxyphenyl)-1-methyl-3-propyl-1,4-dihydro-7H-pyrazolo[4,3-d]pyrimidine-7-thione (Sildenafil impurity)
Smiles Code
CCCC(C(NC(C(C=C1[S](=O)(N(C[C@H]2C)C[C@@H](N2)C)=O)=C(C=C1)OCC)=N3)=C4C3=S)=NN4C