InChI=1/C25H22O9/c1-33-25(32)17-5-2-6-18(27)21(17)23(30)22-19(28)12-15(13-20(22)29)24(31)34-11-3-4-14-7-9-16(26)10-8-14/h2,5-10,12-13,26-29H,3-4,11H2,1H3/p-1/fC25H21O9/h28h/q-1 13792F73E1E7E84B