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