4-Isopropylaniline 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 seen in textiles, inks, and coatings. Additionally, it is utilized in the pharmaceutical industry for the development of certain drugs, where it serves as a building block in the creation of active pharmaceutical ingredients (APIs). In agrochemicals, it is employed in the formulation of pesticides and herbicides, aiding in crop protection and pest control. Its versatility also extends to organic synthesis, where it is used to create complex molecules for research and industrial applications.