Used as a precursor in organic synthesis, particularly in the preparation of perovskite materials for solar cells. It acts as a source of the 4-methoxyphenylammonium cation, which can be incorporated into hybrid organic-inorganic perovskites to tune the band gap and improve device stability. Also employed in the development of light-emitting diodes (LEDs) and photodetectors due to its favorable optoelectronic properties. Its thermal stability and ability to form well-defined crystalline structures make it suitable for thin-film fabrication processes.