InChI=1S/C25H22O17/c26-10-2-1-7(3-11(10)27)9-6-39-13-5-8(4-12(28)14(13)15(9)29)40-21(19(33)22(34)35)24(38)42-25-18(32)16(30)17(31)20(41-25)23(36)37/h1-6,16-21,25-28,30-33H,(H,34,35)(H,36,37)