InChI=1/C16H14N4O6/c1-2-26-14(21)9-19-11-8-12(18-5-3-4-6-18)13(20(24)25)7-10(11)17-15(22)16(19)23/h3-8H,2,9H2,1H3,(H,17,22)/f/h17H BB8DF64697C0ED16