InChI=1S/C25H20O14/c26-15-16(27)20(23(30)31)38-24(17(15)28)39-21-18-8(1-2-33-18)3-9-19(21)37-14-6-34-11-5-13-12(35-7-36-13)4-10(11)25(14,32)22(9)29/h1-5,14-17,20,24,26-28,32H,6-7H2,(H,30,31)