This compound is primarily utilized in peptide synthesis, where it serves as a protected form of threonine. The N-(((9H-Fluoren-9-yl)methoxy)carbonyl) (Fmoc) group protects the amino group, while the allyl group protects the hydroxyl group of threonine. This dual protection allows for selective deprotection during the synthesis process, enabling the precise construction of complex peptides. It is particularly valuable in solid-phase peptide synthesis (SPPS), where it ensures the correct sequence and structure of the peptide chain. The allyl group can be removed under mild conditions, making it suitable for sensitive peptide sequences. This compound is essential in the production of peptides for research, pharmaceuticals, and biotechnology applications.