L-Alanyl-L-cysteine methyl ester is a dipeptide consisting of L-alanine and L-cysteine with a methyl ester group attached to the cysteine residue. L-alanine is a non-essential amino acid involved in protein synthesis and energy production, while L-cysteine contains a thiol group, contributing to antioxidant activities and the formation of disulfide bonds in proteins. The methyl ester modification enhances the molecule's lipophilicity, potentially improving its cellular uptake and bioavailability. This compound may be of interest in research focusing on oxidative stress, metabolic processes, and drug delivery systems.