| Summary: | The asymmetric unit of the title cocrystal, C14H14N4O2·C14H10O4S2, comprises a twisted 2,2′-(disulfanediyl)dibenzoic acid molecule [dihedral angle between the benzene rings = 76.35 (10)°] and a U-shaped N,N′-bis(3-pyridylmethyl)ethanediamide molecule with the pyridyl groups lying to the same side of the central diamide moiety [C—C—C—N = 113.8 (2) and −117.6 (2)°]. The latter aggregate into supramolecular tapes propagating along the a axis via centrosymmetric eight-membered amide {...OCNH}2 synthons. Intramolecular N—H...O hydrogen bonds are observed. The 2,2′-(disulfanediyl)dibenzoic acid molecules form carboxyl–pyridine O—H...N hydrogen bonds, bridging a pyridine residue below the plane of the tape and one above the plane with two intervening N,N′-bis(3-pyridylmethyl)ethanediamide molecules. The supramolecular chains are consolidated in the crystal packing by C—H...O contacts. An intermolecular C—H...S interaction also occurs.
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