Vincristine is a cytotoxic chemotherapy drug used to treat various types of cancer. However, during the manufacturing process, impurities may be introduced, which can affect the purity, efficacy, and safety of the drug. Vincristine impurities can include degradation products, residual solvents, and other process-related impurities. It is crucial to monitor and control these impurities to ensure the quality of the final product.