This compound is widely used in peptide synthesis, particularly in solid-phase peptide synthesis (SPPS). Its Fmoc (fluorenylmethyloxycarbonyl) group serves as a temporary protecting group for the amine, allowing selective deprotection during the synthesis process. The PEG3 (triethylene glycol) spacer enhances solubility and flexibility, which is beneficial for improving the efficiency of peptide coupling reactions. Additionally, the terminal amine group enables further conjugation or modification of the peptide chain. It is also utilized in the development of peptide-based drugs, bioconjugates, and biomaterials, where controlled release and targeted delivery are essential. Its applications extend to the field of bioconjugation, where it is used to link peptides to other molecules, such as proteins, polymers, or surfaces, for various biomedical and research purposes.