Used in biochemical and enzymatic studies as a stable analog of adenosine monophosphate (AMP), particularly in kinase and phosphorylase enzyme assays. It serves as an intermediate in nucleotide metabolism research and helps in probing the activity of enzymes involved in methylation and sulfur transfer pathways. Its triethylammonium salt form enhances solubility and stability in aqueous solutions, making it suitable for in vitro applications. Also utilized in the synthesis of modified nucleotides for RNA studies and drug development.