SARS-CoV-2 3CLpro/3C-like protease Protein (sf9, His) is the recombinant Virus-derived SARS-CoV-2 3CLpro/3C-like protease protein, expressed by Sf9 insect cells , with N-His labeled tag. The total length of SARS-CoV-2 3CLpro/3C-like protease Protein (sf9