N-Ethyl-2-[1-(2-hy­droxy-4-methyl­phen­yl)ethyl­idene]hydrazinecarbo­thio­amide

The title compound, C(12)H(17)N(3)OS, crystallizes with two independent mol­ecules (A and B) in the asymmetric unit. The dihedral angle between the mean planes of the benzene ring and the hydrazinecarbo­thio­amide group are 6.9 (4) and 37.2 (5)° in mol­ecules A and B, respectively. An intra­molecular O—H⋯N hydrogen bond is observed in each mol­ecule. This serves to maintain an approximately planar conformation for mol­ecule A, but leaves a significant twist between these two groups in mol­ecule B. In the crystal, a weak N—H⋯S inter­action is observed, forming inversion dimers among the B mol­ecules and resulting in an R (2) (2)(8) motif. These dimers are further inter­connected by weak N—H⋯O and C—H⋯O inter­molecular inter­actions, forming chains along [011].