Used in the synthesis of oligonucleotides, particularly in the field of genetic research and therapeutic development. It plays a crucial role in the production of modified nucleic acids, enhancing stability and binding affinity. This chemical is essential in creating antisense oligonucleotides, which are used to target and modulate gene expression. It is also applied in the development of diagnostic tools and therapeutic agents for various genetic disorders and diseases. Its incorporation into oligonucleotide chains improves their resistance to nuclease degradation, making them more effective in biological systems.