This chemical is widely used in the field of peptide synthesis, particularly in solid-phase peptide synthesis (SPPS). It serves as a linker or spacer molecule, enabling the attachment of amino acids or peptides to a solid support. The Fmoc (fluorenylmethyloxycarbonyl) group acts as a protective group for the amino functionality, allowing for selective deprotection during synthesis. The PEG12 (polyethylene glycol) spacer provides flexibility and solubility, improving the efficiency of the reaction. The carboxylic acid group facilitates conjugation with other molecules or surfaces. This compound is especially useful in creating peptide-based drugs, biomaterials, and probes for biochemical research. Its design ensures high compatibility with organic solvents and aqueous systems, making it versatile for various bioconjugation and drug delivery applications.