Merck
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27285

Sigma-Aldrich

Ethylenediaminetetraacetic acid disodium salt dihydrate

meets analytical specification of Ph. Eur., BP, USP, FCC, 99.0-101.0%

Synonym(s):
Disodium ethylenediaminetetraacetate dihydrate, EDTA disodium salt, EDTA-Na2, Edathamil, Edetate disodium salt dihydrate, Sequestrene Na2
Empirical Formula (Hill Notation):
C10H14N2Na2O8 · 2H2O
CAS Number:
Molecular Weight:
372.24
Beilstein:
3900609
Numer EC:
Identyfikator substancji w PubChem:
NACRES:
NA.77

Agency

tested according to BP
tested according to Ph. Eur.
tested according to USP

Poziom jakości

reg. compliance

tested according to FCC

Próba

99.0-101.0%

forma

crystals

jakość

meets analytical specification of Ph. Eur., BP, USP, FCC

reaction suitability

reagent type: chelator

zanieczyszczenia

residual solvents, complies
≤0.001% cyanide (CN)
≤0.001% heavy metals (as Pb)
≤0.1% nitrilotriacetic acid (HPLC) (HPLC)

strata

8.7-11.4% loss on drying, 200 °C, 3 h

pH

4-5 (20 °C, 5%)

mp

248 °C (dec.) (lit.)

rozpuszczalność

water: soluble 100 g/L at 20 °C

ślady anionów

chloride (Cl-): ≤100 mg/kg
sulfate (SO42-): ≤500 mg/kg

ślady kationów

As: ≤1 mg/kg
Ca:, in accordance
Fe: ≤10 mg/kg
Pb: ≤10 mg/kg

application(s)

pharmaceutical (small molecule)

SMILES string

O.O.O.O.[Na+].[Na+].[Na+].[Na+].OC(=O)CN(CCN(CC([O-])=O)CC([O-])=O)CC(O)=O.OC(=O)CN(CCN(CC(O)=O)CC([O-])=O)CC([O-])=O

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

InChI key

OVBJJZOQPCKUOR-UHFFFAOYSA-L

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This Item
E5134E4884ED2SS
assay

99.0-101.0%

assay

99.0-101.0% (titration)

assay

99.0-101.0%

assay

98.5-101.5% (titration)

form

crystals

form

powder

form

solid

form

powder

impurities

residual solvents, complies, ≤0.001% cyanide (CN), ≤0.001% heavy metals (as Pb), ≤0.1% nitrilotriacetic acid (HPLC) (HPLC)

impurities

≤0.005% Insolubles, ≤0.1% Nitrilotriacetic acid (NTA)

impurities

≤0.005% Insoluble matter, ≤0.1% Nitrilotriacetic acid ([HOCOCH2]3N)

impurities

-

pH

4-5 (20 °C, 5%)

pH

-

pH

4.0-6.0 (25 °C, 5%)

pH

-

mp

248 °C (dec.) (lit.)

mp

248 °C (dec.) (lit.)

mp

248 °C (dec.) (lit.)

mp

248 °C (dec.) (lit.)

solubility

water: soluble 100 g/L at 20 °C

solubility

3  M NaOH: 1.6 g/10 mL

solubility

H2O: 100 g/L at 20 °C

solubility

H2O: soluble, clear, colorless

Zastosowanie

Ethylenediaminetetraacetic acid disodium salt dihydrate has been used along with Na2HPO4 and citric acid for preparing Na2EDTA-McIlvaine buffer. Aqueous solution of Ethylenediaminetetraacetic acid disodium salt dihydrate has also been used for photocatalytic hydrogen production
Chelator of divalent cations. Inhibits enzymes, such as metalloproteases, that require divalent cations for activity.

Działania biochem./fizjol.

Ethylenediaminetetraacetic acid disodium salt dihydrate is a widely used chelator of divalent cations like Ca+2 and inhibits metal ion-dependent proteases such as calcium-dependent cysteine proteases. EDTA also acts as a chelator of the zinc ion in the active site of metalloproteases; thus it inhibits metalloproteases that requires zinc for activity. Additionally, EDTA prevents platelet aggregation and is a preferred anticoagulant for platelet counts.

piktogramy

Exclamation markHealth hazard

Hasło ostrzegawcze

Warning

Zwroty wskazujące rodzaj zagrożenia

Zwroty wskazujące środki ostrożności

Klasyfikacja zagrożeń

Acute Tox. 4 Inhalation - STOT RE 2 Inhalation

Organy docelowe

Respiratory Tract

Kod klasy składowania

11 - Combustible Solids

WGK

WGK 2

Temperatura zapłonu °F

Not applicable

Temperatura zapłonu °C

Not applicable

Środki ochrony indywidualnej

Eyeshields, Gloves, type N95 (US)


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