Z-Val-Gly-OEt is primarily used in peptide synthesis as a building block for creating more complex peptide structures. It serves as a protected dipeptide, where the Z-group (benzyloxycarbonyl) acts as a protective group for the amino terminus, ensuring selective reactions during the peptide chain assembly. This compound is particularly valuable in solid-phase peptide synthesis (SPPS) and solution-phase synthesis, where it helps in the stepwise construction of peptides with high precision. Additionally, it is utilized in research and development to study peptide interactions, enzyme mechanisms, and protein folding. Its ester functional group (OEt) also makes it suitable for further modifications, enabling the creation of diverse peptide derivatives for pharmaceutical and biochemical applications.