3-Methyl-5-oxo-4-(2-phenyl­hydrazinyl­idene)-4,5-dihydro-1H-pyrazole-1-carbothio­amide

In the title compound, C(11)H(11)N(5)OS, the pyrazole ring is approximately planar, with a maximum deviation of 0.010 (2) Å. The dihedral angles between the benzene ring and the pyrazole and carbothio­amide groups are 5.42 (9) and 10.61 (18)°, respectively. An intra­molecular N—H⋯O hydrogen bond generates an S(6) ring motif. In the crystal, mol­ecules are connected by inter­molecular N—H⋯O and C—H⋯S hydrogen bonds, forming R (2) (2)(12) ring motifs. In addition, there is a π–π stacking inter­action [centroid–centroid distance = 3.5188 (11) Å] between the pyrazole and benzene rings. These inter­actions link the mol­ecules into infinite chains along [001].