title: 5-Ethyl-4-methyl-1H-pyrazol-3(2H)-one.
abstract: In the title compound, C(6)H(10)N(2)O, the 2,3-dihydro-1H-pyrazole ring is approximately planar, with a maximum deviation of 0.013 (1) Å. Pairs of inter-molecular N-H⋯O hydrogen bonds link neighboring mol-ecules into dimers, generating R(2) (2)(8) ring motifs. These dimers are further linked into two-dimensional arrays parallel to the bc plane by inter-molecular N-H⋯O hydrogen bonds. The crystal structure is further stabilized by C-H⋯π inter-actions.
authors.forename: Tara
authors.initials: T
authors.lastname: Shahani
authors.forename: Hoong-Kun
authors.initials: HK
authors.lastname: Fun
authors.forename: R Venkat
authors.initials: RV
authors.lastname: Ragavan
authors.forename: V
authors.initials: V
authors.lastname: Vijayakumar
authors.forename: S
authors.initials: S
authors.lastname: Sarveswari