2-Cyclo­heptyl­idene-N-phenyl­hydrazine­carbo­thio­amide

In the title compound, C(14)H(19)N(3)S, the seven-membered cyclo­heptane ring adopts a chair conformation. An intra­molecular N—H⋯N hydrogen bond [graph-set motif S(5)] is present in the N—N—C—N chain between the ring systems. An intra­molecular C—H⋯S contact also occurs. In the crystal, pairs of mol­ecules form centrosymmetric dimers through N—H⋯S hydrogen bonds [graph-set R (2) (2)(8)]. These dimers are connected by C—H⋯S inter­actions with an R (2) (2)(14) motif.