Used in pharmaceutical research as a key intermediate in the synthesis of selective serotonin reuptake inhibitors (SSRIs) and other central nervous system agents. Its fluorinated aromatic structure enhances metabolic stability and binding affinity, making it valuable in developing antidepressants and anxiolytic drugs. Also employed in the preparation of novel organic compounds for studying neurotransmitter activity. The hydrochloride salt form improves solubility and bioavailability in biological assays.