In the title compound, the dihedral angles between the 2-amino-5-chloro-pyridyl rings and the pyridine ring are 56.26 (6)° and 78.83 (5)°; the angle between the 2-amino-5-chloro-pyridyl rings is 72.42 (5)°. The solvent water mol-ecules are linked to the organic compound by N-H⋯O, O-H⋯O, N-H⋯N and O-H⋯N hydrogen bonds. π⋯π Stacking inter-actions are also observed between the 2-amino-5-chloro-pyridyl rings (centroid⋯centroid distance = 3.243 Å).