InChI=1S/C21H22O11/c22-11-4-2-9(6-12(11)23)18-13(24)5-8-1-3-10(7-14(8)31-18)30-21-17(27)15(25)16(26)19(32-21)20(28)29/h1-4,6-7,13,15-19,21-27H,5H2,(H,28,29)