Thiotepa Impurities are the by-products or unwanted substances that are present in the Thiotepa drug. These impurities can affect the quality, safety, and efficacy of the drug. It is essential to identify, quantify, and control these impurities during the drug development process to ensure the safety and efficacy of the final product. Thiotepa Impurities can be classified into different categories, such as process-related impurities, degradation products, and residual solvents. The identification and control of these impurities are crucial for regulatory compliance and patient safety.