Carbobenzyloxy-Glycyl-Glycine Ethyl Ester is primarily utilized in peptide synthesis as a protective group for amino acids. It helps in preventing unwanted reactions during the formation of peptide bonds, ensuring the synthesis proceeds smoothly and selectively. This compound is particularly valuable in the production of complex peptides and proteins, where precise control over the sequence and structure is crucial. Additionally, it finds application in biochemical research for studying enzyme mechanisms and protein interactions, providing insights into biological processes. Its stability and ease of removal make it a preferred choice in organic and medicinal chemistry for developing therapeutic peptides and drug candidates.