3-(1-Aminoethyl)benzoic acid hydrochloride is primarily used as an intermediate in the synthesis of various pharmaceutical compounds. It plays a crucial role in the development of active pharmaceutical ingredients (APIs) for medications targeting cardiovascular diseases, neurological disorders, and other therapeutic areas. Its structure allows it to act as a building block in organic synthesis, particularly in the creation of complex molecules with specific biological activities. Additionally, it is utilized in research and development for designing and testing new drug candidates, contributing to advancements in medicinal chemistry. Its hydrochloride form enhances solubility, making it more suitable for use in various chemical reactions and formulations.