(1S,2S)-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 chiral structure makes it valuable for developing enantiomerically pure drugs, which can enhance efficacy and reduce side effects. Additionally, it is utilized in peptide synthesis, where it acts as a building block for creating cyclic peptides with potential therapeutic applications. Researchers also explore its use in designing enzyme inhibitors and receptor modulators due to its unique structural properties.