N6-Bz-2'-ara-rA is a modified and protected nucleoside used as a building block or intermediate in the synthesis of oligonucleotides with specific structures. It is employed in molecular biology and biochemistry research, particularly to study biological processes involving nucleic acids, such as RNA synthesis and modification. This reagent helps in investigating enzyme functions and mechanisms related to RNA. Additionally, it is utilized in the development of drugs or biologics targeting molecular processes in cells, including nucleic acid-based therapeutics where modified nucleosides enhance stability and efficacy.