6-Chloroindole is widely used in organic synthesis as a building block for the preparation of various indole derivatives. Its applications include the development of pharmaceuticals, where it serves as a key intermediate in the synthesis of bioactive compounds, particularly those targeting neurological and psychiatric disorders. Additionally, it is utilized in agrochemical research for creating novel pesticides and herbicides due to its structural versatility. In material science, 6-Chloroindole is employed in the design of organic semiconductors and dyes, contributing to advancements in electronic devices and colorants. Its role in catalysis and as a ligand in coordination chemistry further highlights its importance in chemical research and industrial processes.