Used as a protecting group in organic synthesis, particularly in the preparation of nucleosides and nucleotides. It helps to protect the thymine base during chemical reactions, ensuring selective modification of other parts of the molecule. Commonly employed in the synthesis of oligonucleotides for research and therapeutic applications, such as antisense therapy and gene editing. Also utilized in the development of prodrugs and in the study of DNA interactions, providing stability and control in complex biochemical processes.