Chelators

Chelators refer to a class of compounds capable of forming complexes with metal ions. They contain two or more ligands that react with metal ions to form stable chelates. Typically, chelators possess multiple functional groups, such as quaternary ammonium and amino groups, which can encapsulate metal ions within the molecule. This encapsulation reduces the catalytic performance of metal ions, thereby mitigating their influence on reactions.
Chelators are widely used in the fields of pharmaceutical preparations, cosmetics and food to regulate pH values and enhance stability.