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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:
6381-92-6
Molecular Weight:
372.24
Beilstein/REAXYS Number:
3900609
EC Number:
205-358-3
UNSPSC Code:
12352100
PubChem Substance ID:
24845550
NACRES:
NA.21

Quality Level

300

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
GHS08,GHS07

signalword

Warning

hcodes

H332,H373

Hazard Classifications

Acute Tox. 4 Inhalation - STOT RE 2 Inhalation

target_organs

Respiratory Tract

wgk_germany

WGK 2

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)

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