E5391

Ethylenediaminetetraacetic acid tetrasodium salt hydrate

≥99.0%

• Synonym(s): EDTA tetrasodium salt, Edathamil, Tetrasodium ethylenediaminetetraacetate hydrate
• Linear Formula: (NaOOCCH₂)₂NCH₂CH₂N(CH₂COONa)₂ · xH₂O
• CAS Number: 194491-31-1
• Molecular Weight: 380.17 (anhydrous basis)
• Beilstein/REAXYS Number: 3861753
• EC Number: 200-573-9
• MDL number: MFCD00150025
• UNSPSC Code: 12352204
• PubChem Substance ID: 24894613
• NACRES: NA.83

Properties

• biological source: synthetic (organic)
• Quality Level: 200
• assay: ≥99.0%
• form: powder
• technique(s): ligand binding assay: suitable
• impurities: Insoluble matter, passes filter test
• pH: 11.0-12.0 (0.1 M in H₂O)
• solubility: H₂O: 0.1 M, clear, colorless
• anion traces: chloride (Cl^-): ≤0.05%; sulfate (SO₄^2-): ≤0.01%
• cation traces: Al: ≤0.001%; As: ≤0.0001%; Ba: ≤0.0005%; Bi: ≤0.0005%; Ca: <0.001%; Cd: ≤0.0005%; Co: ≤0.0005%; Cr: ≤0.0005%; Cu: ≤0.0005%; Fe: ≤0.0005%; Li: ≤0.0005%; Mg: ≤0.0005%; Mn: ≤0.0005%; Mo: ≤0.0005%; Ni: ≤0.0005%; Pb: ≤0.0005%; Sr: ≤0.0005%; Zn: ≤0.0005%
• absorption: ≤0.06 at 280 in H₂O at 0.1 M; ≤1.5 at 260 in H₂O at 0.1 M
• application(s): sample preparation
• storage temp.: room temp
• SMILES string: O.[Na+].[Na+].[Na+].[Na+].[O-]C(=O)CN(CCN(CC([O-])=O)CC([O-])=O)CC([O-])=O
• InChI: 1S/C10H16N2O8.4Na.H2O/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);;;;;1H2/q;4*+1;/p-4
• InChI key: GXFFSKMBMYHTAE-UHFFFAOYSA-J

Description

Application

EDTA is an inhibitor of metalloproteases, at effective concentrations of 1-10 mM. EDTA acts as a chelator of the zinc ion in the active site of metalloproteases, and can also inhibit other metal ion-dependent proteases such as calcium-dependent cysteine proteases. For use as an anticoagulant, disodium or tripotassium salts of EDTA are most commonly used. The optimal concentration is 1.5 mg per ml of blood.

Used to eliminate enzyme inhibition by traces of heavy metals, and to inhibit enzymes that require divalent cations as cofactors.

Preparation Note

Soluble in water at room temperature up to 1.45 M. The pH of this solution will be approximately 10 to 11 and will be rather viscous.

Safety Information

• pictograms: GHS08,GHS05,GHS07
• signalword: Danger
• hcodes: H302 + H332,H318,H373
• pcodes: P260 - P280 - P301 + P312 - P304 + P340 + P312 - P305 + P351 + P338 - P314
• Hazard Classifications: Acute Tox. 4 Inhalation - Acute Tox. 4 Oral - Eye Dam. 1 - STOT RE 2
• target_organs: Respiratory Tract
• Storage Class: 11 - Combustible Solids
• wgk_germany: WGK 2
• flash_point_f: Not applicable
• flash_point_c: Not applicable
• ppe: dust mask type N95 (US), Eyeshields, Gloves