InChI=1S/C26H18O13/c27-11-5-1-4-9-14(11)22(34)26(23(39-26)16(9)29)10-7-12(28)8-3-2-6-13(15(8)17(10)30)37-25-20(33)18(31)19(32)21(38-25)24(35)36/h1-7,18-21,23,25,27,31-33H,(H,35,36)