Used extensively in peptide synthesis, it serves as a linker or spacer molecule, facilitating the attachment of peptides to solid supports. Its polyethylene glycol (PEG) chain enhances solubility, making it valuable in bioconjugation and drug delivery systems. The Fmoc group provides protection for amines during synthesis, ensuring precise control over reactions. It is also employed in the development of hydrogels and other biomaterials, where its biocompatibility and flexibility are advantageous. Additionally, it plays a role in creating targeted therapeutic agents by enabling the conjugation of drugs to specific biomolecules.