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E5134

Ethylenediaminetetraacetic acid disodium salt dihydrate

Name: Ethylenediaminetetraacetic acid disodium salt dihydrate
Brand: SIGMA

suitable for electrophoresis, Molecular Biology, 99.0-101.0% (titration)

Synonym(s):

Disodium ethylenediaminetetraacetate dihydrate, EDTA disodium salt, EDTA-Na₂, Edathamil, Edetate disodium salt dihydrate, Sequestrene Na₂, Sequestrene Na₂

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About This Item

Empirical Formula (Hill Notation):

C₁₀H₁₄N₂Na₂O₈ · 2H₂O

CAS Number:

6381-92-6

Molecular Weight:

372.24

NACRES:

NA.31

PubChem Substance ID:

24894605

UNSPSC Code:

12352107

EC Number:

205-358-3

Beilstein/REAXYS Number:

3900609

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Properties

grade

Molecular Biology

Quality Level

300

assay

99.0-101.0% (titration)

form

powder

reaction suitability

reagent type: chelator

technique(s)

electrophoresis: suitable

impurities

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

mp

248 °C (dec.) (lit.)

solubility

3 M NaOH: 1.6 g/10 mL

cation traces

Fe: ≤0.005%, Pb: ≤0.002%

suitability

suitable for electrophoresis, suitable for molecular biology

foreign activity

DNase, RNase, NICKase and protease, none detected

storage temp.

room temp

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

Description

General description

EDTA disodium salt dehydrate chelates metal ions, forming an octahedral complex with divalent cations. This is useful in molecular biology research to inhibit enzymes dependent on activation by metal ions. In diagnostic assays, it acts as an anticoagulant during blood collection for hematological tests

Application

EDTA disodium salt has been used in research:

as a component in buffer solutions for electrophoresis, cell culture, enzymatic assays, siRNA, flow cytometry, dimetylmethylene blue, and more
an anticoagulant for whole blood collection
a stabilizer solution for freezing cell culture samples
in combination with PBS and trypsin, to trypsinize cells
for phytoextraction of heavy metals in polluted soils

Chelator of divalent cations. Inhibits enzymes, such as metalloproteases, that require divalent cations for activity.