Metal chelating agent
Chelating agents - definition from Biology-Online.org
[organic chemicals that form two or more coordination bonds with a central metal ion. Heterocyclic rings are formed with the central metal atom as part of the ring. Some biological systems form metal chelates, e.g., the iron-binding porphyrin group of haemoglobin and the magnesium-binding chlorophyll of plants. They are used chemically to remove ions from solutions, medicinally against microorganisms, to treat metal poisoning, and in chemotherapy protocols.
MediLexicon EDTA - Medical Dictionary Definition for Term 'EDTA'
[1. Abbreviation for ethylenediaminetetraacetic acid.
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