Showing structure for C=CC1=C(C)/C2=C/C3=N/C(=C4/C5=N/C(=C\C6=C(CC)/C(=C\[O-])C(=N6)/C=C/1[N-]2)C(C)=C5C(O[Si](C)(C)C)=C4C(=O)OC)C(CCC(=O)O[Si](C)(C)C)C3C