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Both rings in the title compound, C14H9Cl2NO4, are essentially planar, the r.m.s. deviation being 0.007 Å. The dihedral angle between the two planes is 44.8 (3)°. A dimerization occurs through hydrogen bonding of the carboxylic groups.
Supporting information
| Crystallographic Information File (CIF) Contains datablocks text, ab1148a |
CCDC reference: 126158
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