Used primarily as a key intermediate in the synthesis of certain pharmaceuticals, particularly antidepressant medications. It plays a critical role in the production of selective serotonin reuptake inhibitors (SSRIs), where it contributes to the structural framework necessary for biological activity. Due to its functional groups and chiral center, it is also employed in asymmetric synthesis and medicinal chemistry research for developing bioactive molecules. Its hydrochloride salt form enhances stability and solubility, making it suitable for use in controlled reaction environments during drug manufacturing.