Ethyl (3-nitro-2-oxo-1,2-dihydro­pyridin-1-yl)acetate.

The title compound, C9H10N2O5, crystallizes with two crystallographically independent mol­ecules in the asymmetric unit. In the crystal structure, the nitro­pyridone rings are connected by weak C—H⋯O inter­actions, forming sheet-like arrays, which are in turn linked by C—H⋯π and π–π inter­actions between the nitro­pyridone rings on one side, and by C—H⋯O and van der Waals inter­actions between the ester groups on the other. [ABSTRACT FROM AUTHOR]