InChI=1S/C22H18O14/c1-34-18-11-7(4-8(23)13(18)25)12(24)6-2-5(20(30)31)3-9(10(6)14(11)26)35-22-17(29)15(27)16(28)19(36-22)21(32)33/h2-4,15-17,19,22-23,25,27-29H,1H3,(H,30,31)(H,32,33)