Ethylenediamine-N,N,N’,N’-tetraacetic Acid Disodium Dihydrate

• CAT Number: R043015
• CAS Number: 6381-92-6
• Molecular Formula: C₁₀H₁₄N₂Na₂O₈•2H₂O
• Molecular Weight: 336.21
• Purity: ≥95%
• Synonyms: (Ethylenedinitrilo)tetraacetic Acid Disodium Salt Dihydrate; N,N’-1,2-Ethanediylbis[N-(carboxymethyl)glycine Disodium Salt Dihydrate; Disodium EDTA Dihydrate; Disodium Dihydrogen Ethylenediaminetetraacetate Dihydrate; Disodium Edetate Dihydrate; Diso
• Storage: -20°C
• IUPAC Name: disodium;2-[2-[bis(carboxymethyl)amino]ethyl-(carboxylatomethyl)amino]acetate;dihydrate
• InChI: InChI=1S/C10H16N2O8.2Na.2H2O/c13-7(14)3-11(4-8(15)16)1-2-12(5-9(17)18)6-10(19)20;;;;/h1-6H2,(H,13,14)(H,15,16)(H,17,18)(H,19,20);;;2*1H2/q;2*+1;;/p-2
• InChIKey: OVBJJZOQPCKUOR-UHFFFAOYSA-L
• SMILES: C(CN(CC(=O)[O-])CC(=O)[O-])N(CC(=O)O)CC(=O)O.O.O.[Na+].[Na+]

Ethylenediamine-N,N,N’,N’-tetraacetic acid disodium dihydrate (CAT: R043015) is a widely used chelating agent that binds metal ions through its four carboxylate and two amine groups. As the disodium salt, it is highly soluble in water and commonly used to sequester divalent and trivalent metal ions such as Ca²⁺, Mg²⁺, Fe³⁺, and Pb²⁺. This compound plays a critical role in biochemical assays, analytical chemistry, industrial water treatment, and formulation stabilization, where control of metal ion concentrations is essential. It also finds applications in medicine, cosmetics, and agriculture.