Used primarily in organic synthesis, this compound serves as a key intermediate in the production of various pharmaceuticals, particularly sulfonamide-based drugs. It is employed in the development of compounds with antibacterial, antiviral, or anticancer properties. Additionally, it finds application in the synthesis of dyes and pigments, where its reactive sulfonyl chloride group facilitates the introduction of sulfonamide functionalities into target molecules. Its versatility also extends to material science, where it is utilized in the modification of polymers and coatings to enhance specific properties.