Showing structure for CC1OC(OCC2OC(OC3=CC(O)=C4C(=O)C=C(C5=CC=C(O)C=C5)OC4=C3C3OC(CO)C(O)C(O[Si](C)(C)C)C3O[Si](C)(C)C)C(O)C(O)C2O)C(O)C(O)C1O