ZL-Dab(Fmoc)-OH is primarily used in peptide synthesis as a building block. Its Fmoc-protected amino group allows for selective deprotection during solid-phase peptide synthesis, enabling the sequential addition of amino acids. This compound is particularly useful in the synthesis of peptides containing the amino acid 2,4-diaminobutyric acid (Dab), which is significant in creating peptides with specific structural or functional properties. It is widely applied in pharmaceutical research for developing peptide-based drugs, as well as in biochemical studies to explore peptide interactions and functions. Its stability and compatibility with standard peptide synthesis protocols make it a valuable tool in organic and medicinal chemistry.