Used primarily as an intermediate in the synthesis of analgesic and antitussive pharmaceuticals. It serves as a key building block in the production of opioid derivatives, particularly those with central nervous system activity. Its structural configuration allows for modification into compounds that interact with opioid receptors, making it valuable in developing pain-relief medications. Due to its role in synthesizing controlled substances, its use is highly regulated in many countries. It is not used directly as a therapeutic agent but is critical in the preparation of active pharmaceutical ingredients.