Widely used in molecular biology and biochemistry as a critical component in PCR (Polymerase Chain Reaction) to amplify DNA sequences. It serves as a building block for DNA synthesis, providing the necessary energy and nucleotides for the elongation process. Additionally, it is employed in various enzymatic assays and studies involving DNA replication, repair, and sequencing. Its role in cellular metabolism and energy transfer mechanisms also makes it valuable in research focused on understanding biochemical pathways.