Widely used in the synthesis of pharmaceutical intermediates, especially in the development of sulfonamide-based drugs. Its reactive sulfonyl chloride group enables easy attachment to amines, making it valuable in creating biologically active compounds. Commonly employed in agrochemical research for designing novel pesticides due to the presence of multiple halogens that enhance molecular stability and target specificity. Also utilized in materials science as a building block for functionalized aromatic polymers with unique electronic properties. The compound’s halogen diversity allows for selective cross-coupling reactions, facilitating complex molecule construction in medicinal chemistry.