InChI=1S/C25H28O17/c26-5-11-15(32)16(33)18(35)22(40-11)13-10(30)4-9(29)12(14(31)6-1-2-7(27)8(28)3-6)21(13)41-25-20(37)17(34)19(36)23(42-25)24(38)39/h1-4,11,15-20,22-23,25-30,32-37H,5H2,(H,38,39)