InChI=1S/C22H18O12/c23-12-5-15-14(31-7-32-15)4-10(12)11-6-30-13-3-8(1-2-9(13)16(11)24)33-22-19(27)17(25)18(26)20(34-22)21(28)29/h1-6,17-20,22-23,25-27H,7H2,(H,28,29)