University of Missouri researchers and collaborators have developed a new chemical tool that could help lower the cost of prescription medications. The tool, called AshPhos, is a ligand, or molecule, that makes it easier to create special carbon-nitrogen bonds. These bonds are the backbone of more than half of all medicines on the market today. University of Missouri researchers and collaborators have developed a new chemical tool that could help lower the cost of prescription medications. The tool, called AshPhos, is a ligand, or molecule, that makes it easier to create special carbon-nitrogen bonds. These bonds are the backbone of more than half of all medicines on the market today. Biochemistry Analytical Chemistry Phys.org – latest science and technology news stories