Used as an intermediate in the synthesis of heterocyclic compounds, particularly in the preparation of benzothiazole derivatives which are important in pharmaceuticals and agrochemicals. It participates in cyclization reactions to form bioactive molecules, including antimicrobial and anti-inflammatory agents. Also employed in the development of dyes and fluorescent probes due to its ability to form conjugated systems. Its reactivity makes it valuable in organic synthesis for constructing nitrogen- and sulfur-containing rings.