Procaspase Activating Compound 1 (PAC-1) is a small molecule that has shown promise in the field of cancer research. It is designed to activate procaspase-3, a precursor to caspase-3, which plays a critical role in the process of apoptosis, or programmed cell death. By converting procaspase-3 into its active form, PAC-1 can induce apoptosis in cancer cells, offering a potential therapeutic approach for treating various types of cancer.