Used in peptide synthesis as a protected amino acid derivative, particularly in the preparation of complex bioactive peptides. The Boc group provides temporary protection for the amino terminus, while the 2,6-dichlorobenzyl (2,6-Cl₂-Bzl) group protects the phenolic hydroxyl of tyrosine, preventing unwanted side reactions during coupling steps. This compound is especially valuable in solid-phase peptide synthesis (SPPS) and in the production of pharmaceutical intermediates where selective deprotection and high purity are required. Its sterically hindered protecting groups enhance orthogonality in multi-step syntheses, making it suitable for constructing sensitive peptide sequences.