Methyl 3-(pyridin-4-yl­methyl­idene)di­thio­carbazate

There are two independent mol­ecules in the asymmetric unit of the title mol­ecule, C₈H₉N₃S₂, both of which exhibit an E conformation with the pyridine ring and di­thio­carbazate fragment located on opposite sides of the C=N bond. The pyridine ring and di­thio­carbazate group are approximately coplanar, with dihedral angles of 4.74 (1) and 8.77 (1)° between their planes in the two mol­ecules. In the crystal, mol­ecules are linked to each other via N—H...N hydrogen bonds, forming zigzag chains parallel to [10-1].