Used primarily as an intermediate in the synthesis of X-ray contrast agents. Its structure allows for high iodine content, which enhances radiopacity, making it valuable in developing water-soluble contrast media for diagnostic imaging. The reactive chloro groups enable easy linkage to hydrophilic side chains, improving biocompatibility and excretion profiles. It is also explored in the preparation of polymeric contrast agents and functionalized imaging compounds due to its stability and reactivity in controlled chemical environments.