Used in biochemical research as a nucleotide building block for RNA synthesis and in studies involving nucleotide metabolism. Serves as a component in enzyme assays, particularly those involving kinases and phosphorylases. Also utilized in molecular biology for labeling RNA probes and in the preparation of nucleotide pools for in vitro transcription systems. Its disodium salt form enhances solubility and stability in aqueous solutions, making it suitable for cell culture and enzymatic reactions.