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