This chemical is primarily used in peptide synthesis, particularly in solid-phase peptide synthesis (SPPS). It serves as a protected form of D-threonine, where the fluorenylmethoxycarbonyl (Fmoc) group acts as a protecting group for the amino acid's amine functionality. This protection is crucial to prevent unwanted reactions during the peptide chain assembly process. The Fmoc group can be easily removed under basic conditions, allowing for the stepwise construction of peptides. This compound is valuable in the production of custom peptides for research, pharmaceuticals, and biotechnology applications, where precise control over amino acid sequence is essential. Its use ensures high purity and efficiency in synthesizing peptides with specific biological or therapeutic properties.