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