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Acta Crystallogr Sect E Struct Rep Online. 2009 Sep 9;65(Pt 10):o2416-7. doi: 10.1107/S1600536809035818.

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.

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