Abstract

In the mol­ecule of the title compound, C9H8ClNO4, an intra­molecular C—H⋯O hydrogen bond results in the formation of a planar five-membered ring, which is nearly coplanar with the adjacent six-membered ring, the rings being oriented at a dihedral angle of 4.40 (3)°. In the crystal structure, inter­molecular C—H⋯O hydrogen bonds link the mol­ecules.

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