4-Chloro-6-meth-oxy-pyrimidin-2-amine-succinic acid (2/1)

The asymmetric unit of the title compound, 2C5H6ClN3O·C4H6O4, consists of one 4-chloro-6-meth-oxy-pyrimidin-2-amine mol-ecule and one half-mol-ecule of succinic acid which lies about an inversion centre. In the crystal, the acid and base mol-ecules are linked through N-H⋯O and O-H⋯N hydrogen bonds, forming a tape along [1-10] in which R2(2)(8) and R4(2)(8) hydrogen-bond motifs are observed. The tapes are further inter-linked through a pair of C-H⋯O hydrogen bonds into a sheet parallel to (11-2).