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In the title compound, C14H11Cl2N5O, the plane of the 1H-imidazo[4,5-c]pyridine ring system [r.m.s. deviation = 0.087 (19) Å] makes a dihedral angle of 4.87 (10)° with the terminal phenyl ring. An intra­molecular N—H...N hydrogen bond stabilizes the mol­ecular conformation. In the crystal, N—H...O hydrogen bonds link the mol­ecules into inversion dimers. These dimers are connected by π–π inter­actions between imidazole rings [shortest centroid–centroid distance = 3.4443 (14) Å].
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