InChI=1S/C25H20O13/c26-18-19(27)21(23(30)31)37-24(20(18)28)38-25-11-4-15-16(35-8-34-15)6-14(11)33-7-17(25)36-13-5-12-9(1-2-32-12)3-10(13)22(25)29/h1-6,17-21,24,26-28H,7-8H2,(H,30,31)