Summary: | The title compound, C17H19N3O3S, crystallizes with two closely similar independent molecules related by a pseudotranslation of c/2. Each molecule consists of three approximately planar moieties centred on the N2CS group and the two ring systems. The packing involves classical H bonds of the form Namide—H...S and Nhydrazine—H...OC, together with various weak hydrogen bonds and Nhydrazine—H...π interactions. The overall packing is three-dimensional, but layer substructures parallel to the xz plane can be readily identified. Each molecule forms a topologically equivalent set of hydrogen-bond interactions.
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