title: 6,6'-Diamino-1,1',3,3'-tetra-methyl-5,5'-(4-chloro-benzyl-idene)bis-[pyrimidine-2,4(1H,3H)-dione].
abstract: The title compound, C(19)H(21)ClN(6)O(4), is a 1:2 adduct of p-chloro-benzaldehyde and uracil. It crystallizes with two mol-ecules in the asymmetric unit. The two uracil units in the same mol-ecule are connected by a pair of strong N-H⋯O hydrogen bonds. The packing is stabilized by N-H⋯O, C-H⋯O and C-H⋯N inter-actions.
authors.forename: Subrata
authors.initials: S
authors.lastname: Das
authors.forename: Binoy K
authors.initials: BK
authors.lastname: Saikia
authors.forename: Babulal
authors.initials: B
authors.lastname: Das
authors.forename: Lakhinath
authors.initials: L
authors.lastname: Saikia
authors.forename: Ashim J
authors.initials: AJ
authors.lastname: Thakur