Used primarily in peptide synthesis, this compound serves as a building block for constructing peptides with specific sequences. It is particularly valuable in solid-phase peptide synthesis (SPPS) due to its Fmoc protecting group, which can be easily removed under mild basic conditions. The tert-butyl (tBu) group protects the tyrosine side chain, preventing unwanted reactions during the synthesis process. This chemical is essential in producing peptides for research, pharmaceuticals, and biotechnology applications, including the development of therapeutic peptides, vaccines, and diagnostic tools. Its role ensures precise and efficient peptide chain assembly.