Used primarily in peptide synthesis, especially in solid-phase applications, this compound serves as a protected nucleoside-amino acid building block for the preparation of oligonucleotide-peptide conjugates. Its structure incorporates orthogonal protecting groups—Fmoc for the amino function and a benzhydryl-based group for the nucleobase—that allow selective deprotection under mild conditions, enabling stepwise assembly of complex hybrid molecules. It is particularly valuable in the development of antisense therapeutics, targeted drug delivery systems, and bioconjugates for diagnostic probes. The acetic acid terminus provides a convenient site for attachment to solid supports or other molecular scaffolds, facilitating automated synthesis and purification workflows.