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03685

Sigma-Aldrich

Ethylenediaminetetraacetic acid disodium salt dihydrate

≥97.0% (KT)

Synonym(s):

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

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About This Item

Empirical Formula (Hill Notation):
C10H14N2Na2O8 · 2H2O
CAS Number:
Molecular Weight:
372.24
Beilstein:
3900609
EC Number:
UNSPSC Code:
12352100
PubChem Substance ID:
NACRES:
NA.21
solubility:
H2O: 100 g/L at 20 °C

Quality Level

Assay

≥97.0% (KT)

mp

248 °C (dec.) (lit.)

solubility

H2O: 100 g/L at 20 °C

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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General description

Ethylenediaminetetraacetic acid disodium salt dihydrate (EDTA-Na2), is a well known complexation agent with various uses in chemical synthesis, analytical chemistry, and biochemistry. In chemical synthesis, EDTA-Na2 combines with polyvalent cations to form a soluble non-ionic complex that can be removed from solution, which helps prevent undesired side reactions.

Application

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

Pictograms

Health hazardExclamation mark

Signal Word

Warning

Hazard Statements

Hazard Classifications

Acute Tox. 4 Inhalation - STOT RE 2 Inhalation

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

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