InChI=1S/C21H20O12/c22-9-4-2-1-3-7(9)8-6-31-11-5-10(23)18(14(25)12(11)13(8)24)32-21-17(28)15(26)16(27)19(33-21)20(29)30/h1-5,8,15-17,19,21-23,25-28H,6H2,(H,29,30)