Used primarily as a monomer in the synthesis of radiopaque polymers. Its key application is in the development of medical devices and materials that require visibility under X-ray imaging, such as catheters, guidewires, and implantable devices. The presence of iodine atoms provides high X-ray contrast, enabling clear visualization during diagnostic and surgical procedures. It is copolymerized with other acrylic or methacrylic monomers to produce transparent, biocompatible coatings or bulk materials that maintain mechanical integrity while offering enhanced imaging contrast. Also explored in dental materials and embolic agents where real-time imaging is critical.