Showing structure for C[Si](C)(C)OCC1OC(C2=C(O)C3=C(OC(C4=CC=C(O[Si](C)(C)C)C=C4)CC3=O)C(C3OC(CO[Si](C)(C)C)C(O)C(O)C3O[Si](C)(C)C)=C2O)C(O)C(O)C1O