

DTPA (Highly Pure) by Molecular Depot is a diethylenetriaminepentaacetic acid (DTPA), a cell-impermeable chelator of copper, iron, zinc and manganese as well as calcium, magnesium and plutonium. With five carboxylate arms and three nitrogens, DTPA wraps around a metal ion more completely than EDTA and binds most ions more tightly. It is used to chelate transition metals in buffers, to suppress metal-catalysed oxidation and as the chelating group in gadolinium contrast agents and radiometal conjugates. Each unit contains 5 g. MBP supplies Molecular Depot research reagents to research labs in the United States, Canada and worldwide.