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