Gadodiamide is a contrast agent used in medical imaging procedures to enhance the quality of images. However, it may contain impurities that can affect the safety and efficacy of the drug. Gadodiamide impurities can include toxic substances, such as gadolinium and other heavy metals, that can cause adverse reactions in patients. Therefore, it is important to monitor and control the levels of these impurities to ensure the safety of patients undergoing medical imaging procedures.