InChI=1S/C21H22O13/c22-9-3-7(32-21-17(29)15(27)16(28)19(34-21)20(30)31)4-13-8(9)5-12(25)18(33-13)6-1-10(23)14(26)11(24)2-6/h1-4,12,15-19,21-29H,5H2,(H,30,31)