InChI=1S/C22H18O12/c23-11-6-15-14(30-7-31-15)5-10(11)13-4-9-3-8(1-2-12(9)32-13)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)