Used primarily in peptide synthesis as a protecting group for L-serine. The carbobenzoxy (Cbz) group protects the N-terminal amino group, while the tert-butyl (t-Bu) group protects the side-chain hydroxyl group, allowing for selective reactions at other sites without unwanted side reactions. This compound is particularly useful in the synthesis of complex peptides and proteins, ensuring high purity and yield. It is also employed in the production of pharmaceuticals and bioactive peptides, where precise control over molecular structure is crucial. Additionally, it finds application in research laboratories for studying peptide interactions and developing new therapeutic agents.