Used primarily as an intermediate in organic synthesis, this compound is valuable in the production of pharmaceuticals and agrochemicals. Its reactive sulfonyl chloride group enables it to participate in the formation of sulfonamides, which are key components in many drugs, including antibiotics and diuretics. Additionally, it is employed in the development of dyes and pigments due to its ability to introduce sulfonyl groups into aromatic systems, enhancing color properties. In research, it serves as a building block for creating complex molecules, particularly in medicinal chemistry for drug discovery and development.