4'-Methoxy-N,N-di-p-tolyl-[1,1'-biphenyl]-4-amine is primarily utilized in the field of organic electronics, particularly in the development of organic light-emitting diodes (OLEDs). Its structure and properties make it suitable for use as a hole-transporting material, which is essential for improving the efficiency and performance of OLED devices. The compound's ability to facilitate the movement of positive charges within the device contributes to enhanced brightness and lower energy consumption. Additionally, it is explored in the synthesis of advanced materials for optoelectronic applications, where its stability and electronic characteristics are highly valued. Researchers also investigate its potential in photovoltaic cells and other energy-related technologies due to its favorable charge transport properties.