Synthesis and structure of 5-[(4-fluoro-benz-yl)amino]-isophthalic acid featuring O-H⋯O and N-H⋯π inter-actions.

In the title compound, C15H12FNO4, the dihedral angle between the aromatic rings is 77.78 (8)°. In the crystal, the mol-ecules are linked into zigzag ribbons propagating along the [210] direction by pairwise O-H⋯O hydrogen bonds through their two carb-oxy-lic acid groups to generate centrosymmetric R 2 2(8) dimers in each case. In addition, mol-ecules are connected via pairwise N-H⋯π inter-actions between the NH groups and the fluoro-benzene rings. Aromatic π-π stacking inter-actions and weak C-H⋯F and C-H⋯O inter-actions also contribute to the packing. A Hirshfeld surface analysis shows that the most important contributions to the crystal packing are from H⋯H (30.7%), O⋯H/H⋯O (26.1%) and C⋯H/H⋯C (20.3%) contacts.