This compound is widely used in peptide synthesis, particularly in solid-phase peptide synthesis (SPPS). It serves as a building block for the introduction of the amino acid Dab (diaminobutyric acid) into peptide chains. The Fmoc (9-fluorenylmethyloxycarbonyl) group acts as a temporary protecting group for the amino group, while the ivDde (1-(4,4-dimethyl-2,6-dioxocyclohexylidene)-3-methylbutyl) group protects the side chain amine of Dab. This dual protection allows for selective deprotection, enabling the synthesis of complex peptides with specific modifications. It is especially useful in the preparation of peptides for research in biochemistry, pharmaceuticals, and drug development.