Ethyl 3-bromo-4-ethylbenzoate is primarily used as an intermediate in organic synthesis, particularly in the production of pharmaceuticals and agrochemicals. Its structure allows it to participate in various chemical reactions, making it valuable for constructing complex molecules. In pharmaceutical research, it can be utilized to develop compounds with potential therapeutic properties, such as anti-inflammatory or antimicrobial agents. In agrochemical applications, it may serve as a building block for creating pesticides or herbicides. Additionally, its bromo and ethyl groups make it suitable for further functionalization, enabling the synthesis of more specialized chemicals for industrial or laboratory use.