title: 4-(5-Oxo-3-phenyl-4,5-dihydro-1H-pyrazol-1-yl)benzene-sulfonamide.
abstract: With respect to the aliphatic planar five-membered ring (r.m.s. deviation = 0.011 Å) of the title compound, C(15)H(13)N(3)O(2)S, the phenyl ring is aligned at 6.9 (1)° and the phenyl-ene ring at 2.4 (1)°, so that the three rings are nearly coplanar. The amino group has the N atom in a pyramidal geometry; the group is a hydrogen-bond donor to the sulfonyl O atom of one mol-ecule and to the ketonic O atom of another mol-ecule, resulting in the formation of a layer parallel to the bc plane.
authors: Abdulrahman O
authors: AO
authors: Al-Youbi
authors: Abdullah M
authors: AM
authors: Asiri
authors: Hassan M
authors: HM
authors: Faidallah
authors: Khalid A
authors: KA
authors: Alamry
authors: Seik Weng
authors: SW
authors: Ng