title: 7-Chloro-5-(chloro-meth-yl)pyrazolo-[1,5-a]pyrimidine-3-carbonitrile.
abstract: All non-H atoms of the title compound, C(8)H(4)Cl(2)N(4), are essentially coplanar, with an r.m.s. deviation of 0.011 Å. In the crystal, weak C-H⋯N hydrogen bonds link the mol-ecules into infinite sheets parallel to the bc plane.
authors.affiliation: Key Laboratory of Radiopharmaceuticals, Ministry of Education, Department of Chemistry, Beijing Normal University, Xin Jie Kou Wai Street 19, 100875 Beijing,  People's Republic of China.
authors.forename: Jingli
authors.initials: J
authors.lastname: Xu
authors.forename: Hang
authors.initials: H
authors.lastname: Liu
authors.forename: Guixia
authors.initials: G
authors.lastname: Li
authors.forename: Chuanmin
authors.initials: C
authors.lastname: Qi