Used primarily as an intermediate in the synthesis of hydrocortisone derivatives for pharmaceutical applications. It plays a key role in conjugating hydrocortisone to carrier proteins or labels in immunoassay development, enabling the production of antibodies for diagnostic testing. The oxime functional group facilitates stable linkage formation, making it valuable in creating steroid-protein conjugates for research and clinical diagnostics. Its E/Z mixture configuration allows for optimized reactivity and binding efficiency in conjugation processes.