Eltrombopag Dimer Impurity

Smile: O=C1N(C2=CC(C)=C(C)C=C2)N=C(C)/C1=N/NC(C=C(C3=CC(C4=CC(C(O)=O)=CC=C4)=C(O)C(N/N=C5C(N(C6=CC(C)=C(C)C=C6)N=C/5C)=O)=C3)C=C7C8=CC(C(O)=O)=CC=C8)=C7O