title: N'-(3-Bromo-5-chloro-2-hy-droxy-benzyl-idene)-2H-1,3-benzodioxole-5-carbo-hydrazide.
abstract: The asymmetric unit of the title hydrazone compound, C(15)H(10)BrClN(2)O(4), contains two independent mol-ecules. The dihedral angles between the benzene rings are 38.7 (3)° in one mol-ecule and 24.3 (3)° in the other. Both mol-ecules exist in trans conformations with respect to the C=N double bonds of the central methyl-idene units. Intra-molecular O-H⋯N contacts are observed in both mol-ecules, forming S(6) rings. In the crystal, mol-ecules are linked through N-H⋯O hydrogen bonds into chains along the a axis.
authors.affiliation: School of Chemical Engineering, University of Science and Technology Liaoning, Anshan 114051,  People's Republic of China.
authors.forename: Jiao
authors.initials: J
authors.lastname: Wei
authors.forename: Hong-Yan
authors.initials: HY
authors.lastname: Ban
authors.forename: Xiao-Zhi
authors.initials: XZ
authors.lastname: Sun