4-Phenoxyaniline is primarily used as an intermediate in the synthesis of various chemical compounds. It plays a significant role in the production of dyes and pigments, contributing to the vibrant colors in textiles and other materials. Additionally, it is utilized in the pharmaceutical industry for the development of certain drugs, particularly those requiring aromatic amine structures. In agrochemicals, it serves as a building block for the creation of pesticides and herbicides, aiding in crop protection. Its chemical properties also make it valuable in research and development for creating new organic compounds with potential industrial applications.