AZ7550 is primarily utilized in the field of oncology research, where it serves as a metabolite of the drug osimertinib. Its application is significant in studying the efficacy and mechanisms of action in targeting specific mutations in non-small cell lung cancer (NSCLC). Researchers employ AZ7550 to better understand resistance mechanisms and to explore potential therapeutic strategies that can enhance the effectiveness of treatment regimens. Additionally, it is used in pharmacokinetic studies to assess how the body processes the parent drug, providing insights into optimizing dosing and minimizing adverse effects.