InChI=1S/C22H18O12/c1-30-7-2-3-8-11(6-7)31-16-9-4-5-10(23)18(17(9)32-21(29)12(8)16)33-22-15(26)13(24)14(25)19(34-22)20(27)28/h2-6,13-15,19,22-26H,1H3,(H,27,28)