InChI=1S/C22H20O13/c1-6-10(24)19(34-22-16(30)13(27)15(29)20(35-22)21(31)32)12(26)9-11(25)14(28)18(33-17(6)9)7-2-4-8(23)5-3-7/h2-5,13,15-16,20,22-24,26-30H,1H3,(H,31,32)