1.0 2010-04-08 22:11:51 UTC 2025-11-19 00:55:13 UTC FDB015445 Disodium ethylenediaminetetraacetate Sequestrant, preservative and discolouration inhibitor for foods Ethylenediaminetetraacetic acid, widely abbreviated as EDTA, is a polyamino carboxylic acid and a colourless, water-soluble solid. Its conjugate base is named ethylenediaminetetraacetate. It is widely used to dissolve limescale. Its usefulness arises because of its role as a hexadentate ("six-toothed") ligand and chelating agent, i.e. its ability to "sequester" metal ions such as Ca2+ and Fe3+. After being bound by EDTA, metal ions remain in solution but exhibit diminished reactivity. EDTA is produced as several salts, notably disodium EDTA and calcium disodium EDTA. (Ethylenedinitrilo)tetraacetic acid, disodium salt, 8CI Acetic acid, (ethylenedinitrilo)tetra-, disodium salt Chelaplex III Chelaton 3 Chelaton III Chelest 200 Chelest b Clewat n Complexon III Disodium (ethylenedinitrilo)tetraacetic acid Disodium diacid ethylenediaminetetraacetate Disodium dihydrogen ethylenediaminetetraacetate Disodium dihydrogen ethylenediaminetetracetate Disodium dihydrogen(ethylenedinitrilo)tetraacetate Disodium edathamil Disodium edetate Disodium edta Disodium ethylenediamine-n,n,n',n'-tetraacetate Disodium ethylenediaminetetraacetic acid Disodium N,N'-1,2-ethanediylbis(N-(carboxymethyl)glycine) Disodium salt of edta Disodium sequestrene Disodium tetracemate Disodium versenate Disodium versene Dotite 2NA Edathamil disodium Edetate disodium Edetic acid disodium salt Edta disodium Edta disodium salt Endrate disodium Ethylene diamine tetraacetic acid, disodium salt Ethylenebis(iminodiacetic acid) disodium salt Ethylenediaminetetraacetate, disodium salt Ethylenediaminetetraacetic acid disodium salt Glycine, N,N'-1,2-ethanediylbis[N-(carboxymethyl)-, sodium salt (1:2) Komplexon III Mavacid ED 4 Metaquest b N,N'-1,2-Ethanediylbis(N-carboxymethyl)glycine disodium salt, 9CI Selekton B2 Sequestrene Na2 Sequestrene sodium 2 Sodium ethylenediaminetetraacetate Sodium versenate Tetracemate disodium Titriplex III Trilon BD Triplex III Veresene disodium salt Versene Na2 Versonol 120 Zonon d C10H14N2Na2O8 336.2063 336.054554784 disodium 2-({2-[(carboxylatomethyl)(carboxymethyl)amino]ethyl}(carboxymethyl)amino)acetate disodium 2-({2-[(carboxylatomethyl)(carboxymethyl)amino]ethyl}(carboxymethyl)amino)acetate 139-33-3 [Na+].[Na+].OC(=O)CN(CCN(CC(O)=O)CC([O-])=O)CC([O-])=O InChI=1S/C10H16N2O8.2Na/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);;/q;2*+1/p-2 ZGTMUACCHSMWAC-UHFFFAOYSA-L belongs to the class of organic compounds known as tetracarboxylic acids and derivatives. These are carboxylic acids containing exactly four carboxyl groups. Tetracarboxylic acids and derivatives Organic compounds Organic acids and derivatives Carboxylic acids and derivatives Tetracarboxylic acids and derivatives Aliphatic acyclic compounds Alpha amino acids Amino acids Carbonyl compounds Carboxylic acid salts Carboxylic acids Hydrocarbon derivatives Organic oxides Organic sodium salts Organic zwitterions Organopnictogen compounds Trialkylamines Aliphatic acyclic compound Alpha-amino acid Alpha-amino acid or derivatives Amine Amino acid Amino acid or derivatives Carbonyl group Carboxylic acid Carboxylic acid salt Hydrocarbon derivative Organic alkali metal salt Organic nitrogen compound Organic oxide Organic oxygen compound Organic salt Organic sodium salt Organic zwitterion Organonitrogen compound Organooxygen compound Organopnictogen compound Tertiary aliphatic amine Tertiary amine Tetracarboxylic acid or derivatives organic sodium salt logp -1.03 ALOGPS logs -0.67 ALOGPS solubility 7.20e+01 g/l ALOGPS melting_point 237-245 °C (dec.) logp -5.2 ChemAxon pka_strongest_acidic 1.49 ChemAxon pka_strongest_basic 8.13 ChemAxon iupac disodium 2-({2-[(carboxylatomethyl)(carboxymethyl)amino]ethyl}(carboxymethyl)amino)acetate ChemAxon average_mass 336.2063 ChemAxon mono_mass 336.054554784 ChemAxon smiles [Na+].[Na+].OC(=O)CN(CCN(CC(O)=O)CC([O-])=O)CC([O-])=O ChemAxon formula C10H14N2Na2O8 ChemAxon inchi InChI=1S/C10H16N2O8.2Na/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);;/q;2*+1/p-2 ChemAxon inchikey ZGTMUACCHSMWAC-UHFFFAOYSA-L ChemAxon polar_surface_area 161.34 ChemAxon refractivity 84.02 ChemAxon polarizability 25.43 ChemAxon rotatable_bond_count 11 ChemAxon acceptor_count 10 ChemAxon donor_count 2 ChemAxon physiological_charge -3 ChemAxon formal_charge 0 ChemAxon Specdb::MsMs 1256110 Specdb::MsMs 1256111 Specdb::MsMs 1256112 Specdb::MsMs 1371289 Specdb::MsMs 1371290 Specdb::MsMs 1371291 odorless