(1S,2R)-2-(4-Fluoro-phenyl)-cyclopropylamine hydrochloride is primarily utilized in the field of medicinal chemistry and pharmaceutical research. It serves as a key intermediate or building block in the synthesis of various biologically active compounds, particularly those targeting the central nervous system. The compound's structure, featuring a cyclopropylamine moiety and a fluorophenyl group, makes it valuable for developing drugs with potential antidepressant, anxiolytic, or neuroprotective properties. Researchers often explore its derivatives for their ability to modulate neurotransmitter systems, such as serotonin or dopamine, which are critical in treating mental health disorders. Additionally, its chiral nature allows for the study of stereoselective interactions with biological targets, aiding in the design of more effective and selective therapeutic agents.