Methyl 3,4-dichlorobenzoate is primarily used as an intermediate in the synthesis of various organic compounds. It plays a significant role in the production of agrochemicals, particularly in the development of herbicides and pesticides. Its structure allows it to act as a building block for more complex molecules that target weed and pest control in agricultural settings. Additionally, it is utilized in the pharmaceutical industry for the synthesis of active pharmaceutical ingredients (APIs) and other specialty chemicals. Its applications also extend to research and development, where it serves as a reagent in organic chemistry experiments to study reaction mechanisms and develop new compounds.