Used as an intermediate in organic synthesis, particularly in the preparation of pharmaceuticals and functionalized polymers. As a primary alkyl iodide, its iodo group serves as an excellent leaving group for nucleophilic substitution reactions and enables various cross-coupling reactions (e.g., with organometallic reagents) to form carbon-carbon bonds, facilitating the assembly of complex molecular structures, including those incorporating aromatic systems. The ether linkage enhances stability and modulates solubility, aiding in the design of molecules with tailored polarity. Additionally, it is utilized in the synthesis of radiolabeled compounds for medical imaging, where the iodine position allows for isotopic exchange or substitution with radioactive isotopes such as iodine-125.