InChI=1S/C21H20O13/c22-6-3-9(24)13-10(25)5-11(32-12(13)4-6)7-1-2-8(23)18(14(7)26)33-21-17(29)15(27)16(28)19(34-21)20(30)31/h1-4,11,15-17,19,21-24,26-29H,5H2,(H,30,31)