(Z)-2-(5-Chloro-2-oxoindolin-3-yl­idene)-N-phenyl­hydrazinecarbothio­amide

In the title compound, C(15)H(11)ClN(4)OS, the dihedral angle between the nine-membered 5-chloro­indolin-2-one ring system and the benzene ring is 10.00 (6)°. Intra­molecular cyclic N—H⋯O and C—H⋯S hydrogen-bonding inter­actions [graph set S(6)] are present in the N—N—C—N chain between the ring systems. In the crystal, mol­ecules form centrosymmetric cyclic dimers through inter­molecular N—H⋯O hydrogen bonds [graph-set R (2) (2)(8)] and are extended by C—H⋯Cl inter­actions into infinite chains which propagate along [100].