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