title: N,N-Diethyl-2-hy-droxy-ethanaminium 5-(5-chloro-2,4-dinitro-phen-yl)-2,6-dioxo-1,2,3,6-tetra-hydro-pyrimidin-4-olate hemihydrate.
abstract: The asymmetric unit of the title salt, C(6)H(16)NO(+)·C(10)H(4)ClN(4)O(7) (-)·0.5H(2)O, contains two cations, two anions and one water mol-ecule. In one independent anion, one nitro group is rotationally disordered over two orientations in a 0.657 (8):0.343 (8) ratio. In the crystal, inter-molecular N-H⋯O and O-H⋯O hydrogen bonds link all the components into ribbons extending along [100].
authors.affiliation: Postgraduate and Research Department of Chemistry, Seethalakshmi Ramaswami College, Tiruchirappalli 620 002, Tamil Nadu,  India.
authors.forename: Rajamanickam
authors.initials: R
authors.lastname: Babykala
authors.forename: Doraisamyraja
authors.initials: D
authors.lastname: Kalaivani