InChI=1S/C22H20O13/c23-6-8-2-1-7(3-10(8)24)19-16(28)14(26)13-11(25)4-9(5-12(13)34-19)33-22-18(30)15(27)17(29)20(35-22)21(31)32/h1-5,15,17-18,20,22-25,27-30H,6H2,(H,31,32)