2′-Deoxyadenosine 5′-triphosphate disodium salt is widely used in molecular biology and biochemistry research. It serves as a crucial building block in DNA synthesis, particularly in polymerase chain reaction (PCR) techniques, where it is incorporated into the growing DNA strand. This chemical is also essential in DNA sequencing, enabling the accurate determination of nucleotide sequences. Additionally, it plays a role in studying DNA replication and repair mechanisms, providing insights into cellular processes. Its stability and compatibility with enzymatic reactions make it a valuable component in various genetic engineering applications.