Cytidine-5'-diphosphate disodium salt is widely used in biochemical research and pharmaceutical development. It serves as a critical precursor in the synthesis of nucleotides and nucleic acids, playing a key role in studies involving DNA and RNA metabolism. This compound is also utilized in enzymatic assays to investigate the mechanisms of enzymes like kinases and transferases. Additionally, it is employed in the production of modified nucleotides for therapeutic applications, such as antiviral and anticancer drugs. Its role in cellular signaling pathways makes it valuable for studying metabolic processes and developing targeted therapies.