3-Ferrocenoylpropionic acid is primarily utilized in the field of organometallic chemistry and materials science. Its unique ferrocene moiety makes it valuable for applications in redox-active systems, such as the development of electrochemical sensors and biosensors. The compound is often employed in the synthesis of ferrocene derivatives, which are used in catalysis, particularly in asymmetric synthesis and polymerization processes. Additionally, it serves as a building block for creating metallopolymers and functionalized surfaces, which have potential uses in electronic devices and coatings. In medicinal chemistry, it is explored for its role in designing metallodrugs, particularly in anticancer research, due to its ability to induce redox reactions in biological systems.