InChI=1S/C25H20O13/c26-9-5-6-15-11(7-9)16(27)12(23(33)36-15)8-13-20(10-3-1-2-4-14(10)35-24(13)34)37-25-19(30)17(28)18(29)21(38-25)22(31)32/h1-7,17-19,21,25-30H,8H2,(H,31,32)