Assessing Toxicity: IC50 is a critical parameter for evaluating the toxicity of chemicals. It helps identify the concentration at which a substance becomes harmful to biological systems. Comparative Analysis: Toxicologists use IC50 values to compare the potency of different compounds. This comparison is essential for prioritizing chemicals for further study or regulation. Drug Development: In drug development, IC50 values assist in screening potential pharmaceutical agents, ensuring that only the most effective compounds proceed to clinical trials.