Z-L-Alanine is primarily used in peptide synthesis as a protecting group for the amino function of alanine. It helps in preventing unwanted side reactions during the formation of peptide bonds, ensuring the specificity and efficiency of the synthesis process. This compound is particularly valuable in the production of complex peptides and proteins, where precise control over the sequence and structure is crucial. Additionally, Z-L-Alanine is employed in biochemical research to study enzyme mechanisms and protein interactions, providing insights into the role of alanine in various biological processes. Its application extends to the development of pharmaceuticals, where it aids in the creation of peptide-based drugs with enhanced stability and activity.