英文名称
5-(2-Ethoxy-5-(4-methylpiperazine-1-carbonothioyl)phenyl)-1-methyl-3-propyl-1,6-dihydro-7H-pyrazolo[4,3-d]pyrimidine-7-thione methanesulfonate (Sildenafil Impurity 143)
Smiles Code
CCOC1=C(C2=NC(C(CCC)=NN3C)=C3C(N2)=S)C=C(C(N4CCN(C)CC4)=S)C=C1.O=S(C)(O)=O