Used as a key intermediate in the synthesis of heterocyclic compounds, particularly in the preparation of benzothiazoles and related sulfur-nitrogen containing rings which are important in pharmaceuticals and agrochemicals. Acts as a building block in organic synthesis for constructing disulfide-linked frameworks, useful in the development of functional materials and bioactive molecules. Also employed in coordination chemistry as a ligand precursor for transition metal complexes, supporting catalytic applications. Its reactivity in oxidative coupling reactions makes it valuable in the design of novel polymers and conductive materials.