Z-Tyr-OH is widely used in peptide synthesis as a protecting group for tyrosine. It helps in preventing unwanted side reactions during the formation of peptide bonds, ensuring the integrity and specificity of the final peptide product. This compound is particularly valuable in solid-phase peptide synthesis (SPPS), where it aids in the stepwise assembly of amino acids. Additionally, Z-Tyr-OH is employed in the development of bioactive peptides and pharmaceutical compounds, where precise control over amino acid reactivity is crucial. Its application extends to research in biochemistry and molecular biology, where it is used to study protein interactions and enzyme mechanisms.