Bleomycin impurities refer to any unwanted substances that may be present in a sample of Bleomycin, a chemotherapeutic medication used to treat cancer. These impurities can affect the quality and effectiveness of the drug, and may also cause side effects in patients. It is important to identify and quantify these impurities to ensure the safety and efficacy of Bleomycin. Common impurities include degradation products, residual solvents, and other related compounds.