The chemical L-685,458 has a designated molecular formula of C39H52N4O6 and a molecular weight of 672.867 g/mol. Synonyms may include: 1-Benzyl-4-(1-(1-carbamoyl-2-phenylethylcarbamoyl-3-methylbutylcarbamoyl)-2-hydroxy-5-phenylpentyl)carbamic acid tert-butyl ester, L 685,458, L 458, L-685,458 (ChemID).