Ethyl (3E)-3-[2-(4-bromo-phenyl-sulfon-yl)hydrazin-1-yl-idene]butano-ate.

The asymmetric unit of title compound, C(12)H(15)BrN(2)O(4)S, contains two mol-ecules (A and B), with slightly different conformations: the bromo-phenyl rings and the SO(2) planes of the sulfonyl groups are oriented at dihedral angles of 50.2 (2) (mol-ecule A) and 58.24 (7)° (mol-ecule B), and the ethyl acetate groups make dihedral angles of 63.99 (19)° (A) and 65.35 (16)° (B) with their bromo-phenyl groups. In the crystal, both mol-ecules exist as inversion dimers linked by pairs of N-H⋯O hydrogen bonds, which generate R(2) (2)(14) loops. The dimers are linked by C-H⋯O inter-actions.

2-[(2-Amino-phen-yl)sulfan-yl]-N-(4-meth-oxy-phen-yl)acetamide.

In the title compound, C(15)H(16)N(2)O(2)S, the dihedral angle between the 4-meth-oxy-aniline and 2-amino-benzene-thiole fragments is 35.60 (9)°. A short intra-molecular N-H⋯S contact leads to an S(5) ring. In the crystal, mol-ecules are consolidated in the form of polymeric chains along [010] as a result of N-H⋯O hydrogen bonds, which generate R(3) (2)(18) and R(4) (3)(22) loops. The polymeric chains are interlinked through C-H⋯O inter-action and complete R(2) (2)(8) ring motifs.