Showing structure for CC(CC(=O)O)(CC(=O)OCC1OC(C2=C(O[Si](C)(C)C)C=C(O[Si](C)(C)C)C3=C2OC(C2=CC=C(O[Si](C)(C)C)C=C2)=CC3=O)C(O)C(O)C1O)O[Si](C)(C)C