This chemical is primarily used in the synthesis of oligonucleotides, specifically in the field of molecular biology and genetic research. It serves as a key building block in the solid-phase synthesis of DNA sequences, enabling the creation of custom oligonucleotides for applications such as PCR, gene editing, and sequencing. Its phosphoramidite structure allows for efficient coupling during the stepwise assembly of DNA strands. Additionally, it is utilized in the development of antisense oligonucleotides and siRNA, which are critical tools in therapeutic research and drug discovery. The DMT (dimethoxytrityl) group protects the 5'-hydroxyl during synthesis, ensuring precise control over the elongation process.