4-Amino-4'-methoxystilbene is primarily utilized in the field of organic synthesis and material science. It serves as a key intermediate in the production of fluorescent dyes and optical brighteners, which are widely used in the textile and paper industries to enhance the brightness and whiteness of materials. Additionally, this compound is employed in the development of liquid crystal displays (LCDs) due to its ability to influence the alignment and properties of liquid crystals, improving display clarity and performance. In research, it is studied for its potential applications in photodynamic therapy and as a photosensitizer in various light-induced chemical reactions. Its unique structure also makes it a candidate for use in organic electronic devices, such as organic light-emitting diodes (OLEDs), where it contributes to the efficiency and stability of the devices.