4-Butoxy-2-chlorobenzoic acid is primarily used as an intermediate in the synthesis of various organic compounds, particularly in the pharmaceutical and agrochemical industries. It plays a role in the development of active pharmaceutical ingredients (APIs) where its structure can be modified to create molecules with specific therapeutic properties. In agrochemicals, it is utilized in the production of herbicides and pesticides, contributing to the enhancement of crop protection. Additionally, its chemical properties make it suitable for use in research and development for creating novel compounds with potential applications in material science and fine chemicals.