Used primarily as an intermediate in organic synthesis, this compound is valuable in the production of pharmaceuticals and agrochemicals. Its reactive sulfonyl chloride group allows it to participate in the formation of sulfonamides, which are key components in many drugs, including antibiotics and diuretics. Additionally, the bromo and cyano substituents make it a versatile building block for further functionalization, enabling the creation of complex molecules with potential biological activity. It is also employed in the development of dyes and pigments due to its ability to introduce specific functional groups into aromatic systems.