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In the structure of the title compound, [Cd(C9H7N2O2S)2(C10H8N2)2], the complex molecules are located on a crystallographic twofold rotation axis and the CdII ion is octahedrally coordinated by two chelating 2,2′-bipyridine ligands and two O atoms from the carboxylate groups of two 2-(benzimidazol-2-ylsulfanyl)acetate ligands. The two carboxylate ligands adopt a cis configuration with respect to each other. Within each of these ligands, the imidazole fragments are bent back in a loop towards the acetyl groups, forming intramolecular N—H...O hydrogen bonds, which help to stablilize the mononuclear complex. Adjacent molecules are further linked by weak C—H...O hydrogen bonds, resulting in a chain along the c axis.