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