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