Used primarily in organic synthesis, this compound serves as a key reagent for introducing iodine atoms into organic molecules, facilitating the creation of iodinated aromatic compounds. It is particularly valuable in the production of pharmaceuticals, where iodinated intermediates are often required for drug development. Additionally, it finds application in the preparation of specialized dyes and pigments, leveraging its ability to modify the electronic properties of aromatic systems. Its sulfobenzoic anhydride moiety also makes it useful in polymer chemistry, where it can act as a cross-linking agent or modifier to enhance material properties.