InChI=1S/C26H22O13/c27-12-5-4-9-14(29)7-11(19(31)17(9)20(12)32)10-6-13(28)8-2-1-3-15(16(8)18(10)30)38-26-23(35)21(33)22(34)24(39-26)25(36)37/h1-5,10-11,21-24,26-27,32-35H,6-7H2,(H,36,37)