This chemical is primarily used in the field of nanotechnology and surface science. It serves as a functionalizing agent for gold nanoparticles and surfaces due to its thiol group, which forms strong bonds with gold. The long polyether chain provides steric stabilization and solubility in various solvents, making it useful for creating stable colloidal dispersions. It is also employed in self-assembled monolayers (SAMs) for modifying surface properties, such as wettability and biocompatibility, which is critical in biosensors and medical devices. Additionally, its structure allows for applications in drug delivery systems, where it can enhance the stability and targeting efficiency of nanocarriers.