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