Abstract
In the title compound, C20H19N5O3S center dot H2O, the pyrazole ring is connected to a pyrazolone ring, and the two five-membered rings are aligned at 45.0 (1)degrees. The pyrazole ring is connected to a phenyl ring and the two are twisted by 42.7 (1)degrees. Finally, the pyrazolone ring is connected to a benzene ring and the two are twisted by 19.5 (1)degrees. The N-H and -NH2 portions and the solvent water molecules are engaged in N-H center dot center dot center dot N, N-H center dot center dot center dot O and O-H center dot center dot center dot O hydrogen-bonding interactions to generate a three-dimensional network.