InChI=1S/C22H20O14/c1-33-11-5-10-12(8(24)4-9(34-10)6-2-3-7(23)14(26)13(6)25)15(27)19(11)35-22-18(30)16(28)17(29)20(36-22)21(31)32/h2-5,16-18,20,22-23,25-30H,1H3,(H,31,32)