title: 4-(Diethyl-amino)salicylaldehyde phenyl-sulfonyl-hydrazone.
abstract: In the title compound, C(17)H(21)N(3)O(3)S, the dihedral angle between the aromatic ring planes is 84.2 (2)°. The pendant ethyl groups of the -N(C(2)H(5))(2) group are disordered over two sets of positions in a 0.84 (2):0.16 (2) ratio. The mol-ecular conformation is stabilized by an intra-molecular O-H⋯N hydrogen bond, and inter-molecular N-H⋯O bonds lead to [010] chains in the crystal structure.
authors.affiliation: Department of Chemistry and Chemical Engineering, Weifang University, Weifang 261061, People's Republic of China.
authors.forename: Xi-Shi
authors.initials: XS
authors.lastname: Tai
authors.forename: Yi-Min
authors.initials: YM
authors.lastname: Feng
authors.forename: Fan-Yuan
authors.initials: FY
authors.lastname: Kong