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