6-(4-Methyl-phen-yl)-1,3,5-triazine-2,4-di-amine-benzoic acid (1/1).

The benzoic acid mol-ecule of the title adduct, C10H11N5·C7H6O2, is approximately planar, with a dihedral angle of 7.2 (3)° between the carb-oxy-lic acid group and the benzene ring. In the triazine mol-ecule, the plane of the triazine ring makes a dihedral angle of 28.85 (9)° with that of the adjacent benzene ring. In the crystal, the two components are linked by N-H⋯O and O-H⋯N hydrogen bonds with an R 2 (2)(8) motif, thus generating a 1 + 1 unit of triazine and benzoic acid mol-ecules. The acid-base units are further connected by N-H⋯N hydrogen bonds with R 2 (2)(8) motifs, forming a supra-molecular ribbon along [101]. The crystal structure also features weak π-π [centroid-centroid distances = 3.7638 (12) and 3.6008 (12) Å] and C-H⋯π inter-actions.