<unk>  is a widely-used abbreviation for the chemical compound ethylenediaminetetraacetic acid (and many other names, see table). <unk>  refers to the chelating agent with the formula (HO2CCH2)2NCH2CH2N(CH2CO2H)2. This amino acid is widely used to sequester di- and trivalent metal ions. <unk>  binds to metals via four carboxylate and two amine groups. <unk>  forms especially strong complexes with Mn(II), Cu(II), Fe(III), and Co(III).
EDTA
Charcoal
Heme
Calcium lactate
Fomepizole
Sodium borate
Methylene blue
Pentetate Zinc Trisodium