InChI=1S/C23H20O14/c1-31-5-3-7-11(12-17-23(35-17)37-21(12)32-7)16-10(5)9-6(2-4(24)8(9)20(30)34-16)33-22-15(27)13(25)14(26)18(36-22)19(28)29/h3,6,12-15,17-18,21-23,25-27H,2H2,1H3,(H,28,29)