Used as a key intermediate in the synthesis of functionalized polymers and dendrimers, particularly in controlled radical polymerization techniques. Its iodo group enables efficient initiation in atom transfer radical polymerization (ATRP), allowing precise control over molecular weight and polydispersity. The oligoethylene glycol-like side chain provides solubility in polar solvents and imparts hydrophilic characteristics to the resulting polymers, making them suitable for biomedical applications such as drug delivery systems and biocompatible coatings. Also employed in the preparation of surface modifiers for nanoparticles and functionalized surfaces in sensor technologies.