title: 3-Oxo-5-(piperidin-1-yl)-2,3-dihydro-1H-pyrazole-4-carbonitrile.
abstract: In the title compound, C(9)H(12)N(4)O, the piperidine ring adopts a chair conformation and makes a dihedral angle of 42.49 (11)° with the approximately planar pyrazole moiety [maximum deviation = 0.038 (2) Å]. In the crystal, N-H⋯O and N-H⋯N hydrogen bonds and a weak C-H⋯O inter-action link the mol-ecules into sheets lying parallel to (110).
authors.forename: Wedad M
authors.initials: WM
authors.lastname: Al-Adiwish
authors.forename: W A
authors.initials: WA
authors.lastname: Yaacob
authors.forename: D
authors.initials: D
authors.lastname: Adan
authors.forename: Mohamed Ibrahim
authors.initials: MI
authors.lastname: Mohamed Tahir
authors.forename: Mohammad B
authors.initials: MB
authors.lastname: Kassim