title: 5-Acetyl-3-(5-phenyl-1H-pyrazol-3-yl)-1,3,4-thia-diazol-2(3H)-one monohydrate.
abstract: In the title hydrate, C13H10N4O2S·H2O, the dihedral angles between the central pyrazole ring and its pendant phenyl and thia-diazole rings are 9.93 (8) and 4.56 (7)°, respectively. In the crystal, the components are linked by N-H⋯O, O-H⋯N and O-H⋯O hydrogen bonds, generating [100] chains incorporating R 4 (4)(10) loops. A weak C-H⋯O inter-action helps to consolidate the packing.
authors.affiliation: Chemistry Department, Faculty of Science, King Abdulaziz University, PO Box 80203, Jeddah 21589, Saudi Arabia ; Center of Excellence for Advanced Materials Research (CEAMR), Faculty of Science, King Abdulaziz University, PO Box 80203, Jeddah 21589, Saudi Arabia.
authors.forename: Abdullah M
authors.initials: AM
authors.lastname: Asiri
authors.forename: Muhammad Nadeem
authors.initials: MN
authors.lastname: Arshad
authors.forename: Abdullah Y
authors.initials: AY
authors.lastname: Obaid
authors.forename: Ghulam
authors.initials: G
authors.lastname: Mustafa