Ethyl 3-(4-chlorophenyl)propanoate 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 in the production of active pharmaceutical ingredients (APIs) and other fine chemicals. Its structure, featuring a chlorophenyl group, makes it valuable for creating compounds with potential biological activity, such as anti-inflammatory, antifungal, or antimicrobial agents. Additionally, it is utilized in research and development for designing and testing new chemical entities. In agrochemicals, it may be involved in the formulation of pesticides or herbicides, leveraging its aromatic and ester functional groups for effective chemical interactions.