4-(2-Methoxyphenyl)aniline is primarily used as an intermediate in the synthesis of various organic compounds. It plays a significant role in the production of dyes and pigments, particularly in creating colorants for textiles, plastics, and inks. Its structure allows it to act as a building block for more complex molecules, enabling the development of vibrant and stable colors.

Additionally, this compound is utilized in pharmaceutical research for the development of active pharmaceutical ingredients (APIs). Its aniline moiety makes it a valuable precursor in the synthesis of compounds with potential biological activity, such as analgesics or anti-inflammatory agents. Researchers often modify its structure to explore new therapeutic possibilities.

In material science, 4-(2-Methoxyphenyl)aniline is employed in the creation of advanced polymers and resins. Its incorporation into polymer chains can enhance the material's properties, such as thermal stability or mechanical strength, making it suitable for specialized industrial applications.