InChI=1S/C21H20O11/c22-9-3-1-8(2-4-9)11-7-30-18-10(13(11)23)5-6-12(14(18)24)31-21-17(27)15(25)16(26)19(32-21)20(28)29/h1-6,11,15-17,19,21-22,24-27H,7H2,(H,28,29)