03699

Ethylenediaminetetraacetic acid tetrasodium salt hydrate

BioUltra, ≥99.0% (KT)

• 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: 3861753
• EC Number: 200-573-9
• MDL number: MFCD00150025
• UNSPSC Code: 12352202
• PubChem Substance ID: 329747780
• NACRES: NA.77
• Assay: ≥99.0% (KT)
• Grade: reagent grade
• Form: powder
• Solubility: H₂O: 0.1 M at 20 °C, clear, colorless

Properties

• grade: reagent grade
• Quality Level: 200
• product line: BioUltra
• Assay: ≥99.0% (KT)
• form: powder
• reaction suitability: reagent type: chelator
• impurities: insoluble matter, passes filter test
• pH: 11.0-12.0 (25 °C, 0.1 M in H₂O)
• solubility: H₂O: 0.1 M at 20 °C, clear, colorless
• anion traces: chloride (Cl^-): ≤100 mg/kg; sulfate (SO₄^2-): ≤100 mg/kg
• cation traces: Al: ≤5 mg/kg; As: ≤0.1 mg/kg; Ba: ≤5 mg/kg; Bi: ≤5 mg/kg; Ca: ≤10 mg/kg; Cd: ≤5 mg/kg; Co: ≤5 mg/kg; Cr: ≤5 mg/kg; Cu: ≤5 mg/kg; Fe: ≤5 mg/kg; K: ≤50 mg/kg; Li: ≤5 mg/kg; Mg: ≤5 mg/kg; Mn: ≤5 mg/kg; Mo: ≤5 mg/kg; Ni: ≤5 mg/kg; Pb: ≤5 mg/kg; Sr: ≤5 mg/kg; Zn: ≤5 mg/kg
• λ: 0.1 M in H₂O
• UV absorption: λ: 260 nm A_max: ≤1.5; λ: 280 nm A_max: ≤0.06
• SMILES string: O.[Na+].[Na+].[Na+].[Na+].[O-]C(=O)CN(CCN(CC([O-])=O)CC([O-])=O)CC([O-])=O; 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
• Signal Word: Danger
• Hazard Statements: H302 + H332,H318,H373
• Precautionary Statements: 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 Code: 11 - Combustible Solids
• WGK: WGK 2
• Flash Point(F): Not applicable
• Flash Point(C): Not applicable
• Personal Protective Equipment: dust mask type N95 (US), Eyeshields, Gloves