InChI=1S/C21H20O11/c22-8-5-12-14(15(24)10(7-30-12)9-3-1-2-4-11(9)23)13(6-8)31-21-18(27)16(25)17(26)19(32-21)20(28)29/h1-6,10,16-19,21-23,25-27H,7H2,(H,28,29)