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In the title compound, C 16 H 10 N 4 O 4 , the two pyridine rings are twisted by 44.41 (2)° and the ester groups form dihedral angles of 48.77 (4) and 45.75 (2)° with the corresponding pyridine rings. The crystal structure is stabilized by inter­molecular C—H⋯O hydrogen bonds and π–π stacking inter­actions between the pyridine rings [centroid-to-centroid distance 3.797 (2) Å].

Dimethyl 6,6′-dicyano-2,2′-bipyridine-3,3′-dicarboxylate