Pyridine-3-carbonitrile–chloranilic acid–acetonitrile (2/1/2)

In the crystal structure of the title compound, 2C(6)H(4)N(2)·C(6)H(2)Cl(2)O(4)·2C(2)H(3)N, the two symmetry-related pyridine-3-carbonitrile mol­ecules are linked to either side of a chloranilic acid (systematic name: 2,5-dichloro-3,6-dihydr­oxy-1,4-benzoquinone) mol­ecule via inter­molecular O—H⋯N hydrogen bonds, giving a centrosymmetric 2:1 unit. The dihedral angle between the pyridine ring and the chloranilic acid plane is 26.71 (6)°. In addition, the two acetonitrile mol­ecules are linked to either side of the 2:1 unit through C—H⋯N hydrogen bonds, forming a 2:1:2 aggregate. These 2:1:2 aggregates are further linked by weak inter­molecular C—H⋯N and C—H⋯O hydrogen bonds, forming a tape along the c axis.