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