
Nα,Nα-Bis(carboxymethyl)-L-lysine Hydrate by Molecular Depot is a Nα,Nα-bis(carboxymethyl)-L-lysine hydrate, the chelating amino acid at the heart of nitrilotriacetic acid affinity resins. Adding two carboxymethyl groups to the alpha amine of lysine creates a nitrilotriacetic acid group, a tetradentate chelator that grips a nickel ion and leaves two coordination positions free for a histidine tag. It is used to prepare nitrilotriacetic acid chelating resins and surfaces, in immobilised metal affinity chromatography development and in bioconjugation. Each unit contains 1 g. MBP supplies Molecular Depot research reagents to research labs in the United States, Canada and worldwide.