Used as a key intermediate in the synthesis of pharmaceuticals, particularly in the development of antidepressants and anxiolytic agents. It serves as a building block for modifying molecular structures to enhance bioavailability and receptor selectivity. Commonly employed in the preparation of serotonin and norepinephrine reuptake inhibitors due to its ability to integrate into complex heterocyclic systems. Also utilized in agrochemical research for designing novel active ingredients with improved metabolic stability. Its hydrochloride salt form enhances solubility and handling in aqueous reaction environments.