5-Bromo-2-hy­droxy­benzaldehyde 4-ethyl­thio­semicarbazone

In the title Schiff base compound, C10H12BrN3OS, the C—N—N—C torsion angle is 172.07 (11)°. An intra­molecular hydrogen bond exists between the hy­droxy H atom and the azomethine N atom. In the crystal, pairs of hydrogen bonds involving the imino H atom and the S atom give rise to supra­molecular dimers.