InChI=1S/C26H20O13/c27-8-4-12-14(29)7-10(19(31)17(12)15(30)5-8)11-6-13(28)9-2-1-3-16(18(9)20(11)32)38-26-23(35)21(33)22(34)24(39-26)25(36)37/h1-6,10,21-24,26-27,30,33-35H,7H2,(H,36,37)