InChI=1S/C25H22O17/c26-8-3-1-7(2-4-8)9-6-39-10-5-11(14(28)15(29)12(10)13(9)27)40-21(19(33)22(34)35)24(38)42-25-18(32)16(30)17(31)20(41-25)23(36)37/h1-6,16-21,25-26,28-33H,(H,34,35)(H,36,37)