InChI=1/C14H13N3O6/c1-7-11(2-3-12(18)19)15-16-17(7)10-5-8(13(20)21)4-9(6-10)14(22)23/h4-6H,2-3H2,1H3,(H,18,19)(H,20,21)(H,22,23)/p-3/fC14H10N3O6/q-3 DF10516F1C5AED8C