4-Methoxytriphenylamine is primarily used in the field of organic electronics, particularly in the development of organic light-emitting diodes (OLEDs) and organic photovoltaics (OPVs). Its structure allows it to function as a hole-transport material, facilitating the movement of positive charges within these devices, which enhances their efficiency and performance. Additionally, it is employed in the synthesis of advanced materials for optoelectronic applications, where its electron-donating properties are leveraged to improve the stability and conductivity of the final product. Its role in these technologies contributes to the advancement of energy-efficient lighting and renewable energy solutions.