InChI=1S/C22H20O13/c1-30-16-8(24)3-6-11-12-7(21(29)34-18(11)16)4-9(17(31-2)19(12)35-20(6)28)32-22-15(27)14(26)13(25)10(5-23)33-22/h3-4,10,13-15,22-27H,5H2,1-2H3