Planarity of benzoylthiocarbazate tuberculostatics. IV. Polymorphs of N′‐(1,3‐dithiolan‐2‐ylidene)‐4‐nitrobenzohydrazide

The search for new tuberculostatics is important considering the occurrence of drug‐resistant strains of Mycobacterium tuberculosis . Three polymorphs of N ′‐(1,3‐dithiolan‐2‐ylidene)‐4‐nitrobenzohydrazide (a potentially tuberculostatic agent), C₁₀H₉N₃O₃S₂, denoted (I1), (I2) and (I3), and the monohydrate of this compound, C₁₀H₉N₃O₃S₂·H₂O, (I4), have been characterized by single‐crystal X‐ray diffraction. The conformations of the molecules in all these structures are very similar. Structures (I1), (I2) and (I3) provide an example of packing polymorphism resulting from different intermolecular interactions.