3-Chloropropyl phenyl ether is primarily utilized as an intermediate in organic synthesis. It plays a significant role in the production of various chemical compounds, particularly in the pharmaceutical and agrochemical industries. The compound is often employed in the synthesis of active pharmaceutical ingredients (APIs) and other biologically active molecules due to its reactive chloropropyl group, which facilitates further chemical modifications. Additionally, it is used in the development of specialty chemicals, including surfactants and polymers, where its ether linkage and aromatic phenyl group contribute to desired properties such as stability and solubility. Its applications also extend to research and development, where it serves as a building block for creating novel compounds with potential industrial or therapeutic uses.