SARS-CoV-2-IN-11 is a highly potent and non-toxic inhibitor of the 3C-like protease (3CLpro) of SARS-CoV-2, demonstrating IC50 and EC50 values of 0.17 nM and 1.45 nM, respectively. This compound targets the essential viral replication enzyme, 3CLpro, making it an attractive candidate for intervention strategies. SARS-CoV-2-IN-11 holds significant promise in the development of specific antivirals against SARS-CoV-2.