This chemical is primarily utilized in the synthesis of oligonucleotides, particularly in the field of genetic research and molecular biology. It serves as a key reagent in the phosphoramidite method, which is a standard approach for constructing DNA and RNA sequences. Its role is to facilitate the addition of nucleotide building blocks during the automated solid-phase synthesis of oligonucleotides. The compound's structure, featuring a propargyl group and a polyethylene glycol (PEG) linker, enhances its solubility and reactivity, making it suitable for efficient coupling reactions. Additionally, the diisopropylphosphoramidite moiety ensures stability during the synthesis process, while the cyanoethyl group provides protection against unwanted side reactions. This chemical is particularly valuable in the production of modified oligonucleotides for applications such as gene editing, diagnostics, and therapeutic development.