InChI=1S/C21H18O13/c22-6-3-8(23)13-9(24)5-11(32-12(13)4-6)7-1-2-10(15(26)14(7)25)33-21-18(29)16(27)17(28)19(34-21)20(30)31/h1-5,16-19,21-23,25-29H,(H,30,31)