Used as a key intermediate in the synthesis of radiopharmaceuticals, particularly in the development of iodine-123 or iodine-131 labeled compounds for diagnostic imaging and targeted radiotherapy. Its structure allows selective binding to metal ions, making it useful in the preparation of imaging agents for studying neurological disorders and tumor detection. Also investigated for antimicrobial applications due to the quinoline core’s biocidal properties, especially when enhanced by iodine substituents. Shows potential in coordination chemistry for designing sensors or catalysts involving heavy halogens.