InChI=1/C18H13FN2O5/c1-26-15-9-10(6-7-14(15)22)8-11-16(23)20-18(25)21(17(11)24)13-5-3-2-4-12(13)19/h2-9,22H,1H3,(H,20,23,25)/p-1/b11-8+/fC18H12FN2O5/q-1 11B61CE87E49AAE1