Crizotinib Impurities are any unwanted substances that may be present in Crizotinib drug substance or drug product. These impurities can be formed during the synthesis of Crizotinib or during storage and handling. Impurities may affect the safety and efficacy of the drug, and therefore need to be controlled and monitored. The identification and quantification of Crizotinib Impurities is crucial for regulatory compliance and quality control purposes.