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