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