3,5-Dichloro-2-nitrobenzoic acid is primarily used as an intermediate in the synthesis of various organic compounds, particularly in the pharmaceutical and agrochemical industries. It serves as a key building block for the production of herbicides, fungicides, and other crop protection agents due to its reactive nitro and carboxylic acid functional groups. Additionally, it is utilized in the development of dyes and pigments, where its structural properties contribute to color stability and intensity. In research, it is employed in organic synthesis to create complex molecules for studying chemical reactions and mechanisms. Its chlorinated and nitro-substituted aromatic structure makes it a valuable component in the preparation of specialized chemicals with specific biological or industrial applications.