Used as a surface modifier in nanotechnology and materials science, particularly for functionalizing gold and silver nanoparticles due to its thiol group that strongly binds to metal surfaces. The triphenylsilyl group provides steric bulk and hydrophobic character, enhancing colloidal stability in nonpolar solvents. Employed in the fabrication of self-assembled monolayers (SAMs) for sensors and electronic devices, where it helps control interfacial properties and electron transfer. Also serves as a coupling agent in hybrid organic-inorganic systems, improving compatibility between components in composite materials. Its reactivity allows for further chemical derivatization, making it useful in synthetic pathways toward more complex molecular architectures.