4-(Piperazin-1-ylmethyl)benzoic acid dihydrochloride is primarily utilized in the field of pharmaceutical research and development. It serves as a key intermediate in the synthesis of various biologically active compounds, particularly those targeting central nervous system disorders. The compound's structure allows it to interact with specific receptors, making it valuable in the design of potential therapeutic agents. Additionally, it is employed in the preparation of ligands for receptor binding studies, aiding in the understanding of biochemical pathways and drug mechanisms. Its application extends to the development of novel drugs with potential anti-inflammatory, analgesic, or antipsychotic properties.