4,4'''-Bis(2-butyloctyloxy)-p-quaterphenyl is primarily used 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, enhancing the efficiency and performance of OLED devices. The compound’s ability to facilitate the movement of positive charges within the device contributes to improved light emission and energy efficiency. Additionally, it is explored in the fabrication of organic thin-film transistors (OTFTs) and other optoelectronic applications, where its stability and charge transport characteristics are advantageous. Its role in advancing flexible and lightweight electronic displays underscores its importance in modern technology.