InChI=1S/C21H20O11/c22-8-5-11(23)14-13(6-8)30-7-10(15(14)24)9-3-1-2-4-12(9)31-21-18(27)16(25)17(26)19(32-21)20(28)29/h1-6,10,16-19,21-23,25-27H,7H2,(H,28,29)