Showing structure for CC(C)(C)[Si](C)(C)OC1=CC(S(=O)(=O)O)=CC2=CC(S(=O)(=O)O)=CC(N=NC3=CC=C(NC4=CC=CC=C4)C4=C(S(=O)(=O)O[Si](C)(C)C(C)(C)C)C=CC=C34)=C12