Cdk2 Inhibitor II is primarily used in research settings to study the role of cyclin-dependent kinase 2 (Cdk2) in cell cycle regulation. By inhibiting Cdk2, it helps researchers understand its function in controlling the transition from the G1 to the S phase of the cell cycle. This is particularly useful in cancer research, as uncontrolled cell division is a hallmark of cancer. The inhibitor is also employed in studies exploring potential therapeutic strategies for diseases characterized by abnormal cell proliferation. Additionally, it aids in investigating the molecular mechanisms underlying cell cycle checkpoints and DNA replication processes. Its application extends to drug discovery, where it serves as a tool to evaluate the efficacy of new compounds targeting Cdk2-related pathways.