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In the title compound, C19H10ClNO4, the dihedral angle between the naphtho­quinone and coumarin rings is 48.99 (6)°. In the crystal, mol­ecules are linked by strong N—H...O hydrogen bonds into chains with graph-set motif C(6) along [101]. The packing also features π–π stacking inter­actions between naphtho­quinone and coumarin rings [centroid-to-centroid distances = 3.7679 (12) and 3.6180 (13) Å].
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