(1R,2S)-rel-2-Aminocyclopentanecarboxylic acid hydrochloride is primarily used in the field of medicinal chemistry and pharmaceutical research. It serves as a key intermediate in the synthesis of various biologically active compounds, particularly those targeting neurological and cardiovascular systems. Its structure is often exploited in the development of peptide mimetics and enzyme inhibitors, which are crucial for drug discovery. Additionally, this compound is utilized in the study of chiral molecules and their interactions, aiding in the design of more effective and selective therapeutic agents. Its hydrochloride form enhances solubility, making it suitable for use in aqueous-based experimental setups.