Used as an intermediate in organic synthesis, particularly in the preparation of functionalized polymers and specialty chemicals. Its iodoalkyl chain allows for efficient coupling reactions, making it valuable in the development of pharmaceuticals and agrochemicals. Commonly employed in Mitsunobu reactions and nucleophilic substitutions to introduce ethylene glycol spacers into larger molecules. Also utilized in the synthesis of labeled compounds for biochemical studies due to the presence of the iodine atom, which can be radioactively labeled or used in imaging applications.