The chemical Calpeptin has a designated molecular formula of C20H30N2O4 and a molecular weight of 362.470 g/mol. Synonyms may include: Benzylcarbonyl-leu-nleu-H, N-Cbz-leu-nleu-al, UNII-18X9FR245W (ChemID). Calpeptin has been assigned a MeSH pharmacological action of: Cysteine Proteinase Inhibitor.