title: Pyrimidine-2,4-diamine acetone monosolvate.
abstract: In the title compound, C(4)H(6)N(4)·C(3)H(6)O, the pyrimidine-2,4-diamine mol-ecule is nearly planar (r.m.s. deviation = 0.005 Å), with the endocyclic angles covering the range 114.36 (10)-126.31 (10)°. In the crystal, N-H⋯N and N-H⋯O hydrogen bonds link the mol-ecules into ribbons along [101], and weak C-H⋯π inter-actions consolidate further the crystal packing.
authors: D. Ghitu Institute of Electronic Engineering and Nanotechnologies, 3/3 Academy Street, MD-2028, Chisinau,  Republic of Moldova.
authors: Sergiu
authors: S
authors: Draguta
authors: Bhupinder
authors: B
authors: Sandhu
authors: Victor N
authors: VN
authors: Khrustalev
authors: Marina S
authors: MS
authors: Fonari
authors: Tatiana V
authors: TV
authors: Timofeeva