In the title 1:1 cocrystal, C(10)H(7)NO(4)·C(14)H(13)N(3)O(2), mol-ecules are linked by inter-molecular C-H⋯O, N-H⋯O and O-H⋯N hydrogen bonds, forming a three-dimensional network. In addition, π-π stacking inter-actions [with centroid-centroid distances of 3.5723 (19) and 3.6158 (18) Å] are observed.