Acta Cryst. (2013). E69, o1317 [ doi:10.1107/S1600536813019922 ]
Abstract: 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-HO hydrogen bonds into chains with graph-set motif C(6) along . The packing also features - stacking interactions between naphthoquinone and coumarin rings [centroid-to-centroid distances = 3.7679 (12) and 3.6180 (13) Å].
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