Widely used as an intermediate in organic synthesis thanks to its reactive bromomethyl group, which undergoes nucleophilic substitution reactions, particularly in the production of dyes and pigments. It plays a key role in the manufacture of sulfonated polymers, which are essential in water treatment processes for their ability to remove impurities. Additionally, it is utilized in the preparation of surfactants, enhancing the cleaning efficiency of detergents and soaps. In pharmaceutical research, it serves as a building block for developing various active compounds. Its sulfonate group also makes it valuable in the creation of ion-exchange resins, which are critical in purification and separation technologies.