Used as a key intermediate in the synthesis of fluorinated pharmaceuticals and agrochemicals. Its sulfonyl chloride group enables easy conversion to sulfonamides or sulfonate esters, making it valuable in drug development for introducing fluorinated aromatic moieties. Commonly employed in the preparation of biologically active compounds, including kinase inhibitors and anti-inflammatory agents. Also utilized in the manufacture of specialty polymers and functional materials where fluorine substitution enhances stability or electronic properties.