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Ethylenebis(oxyethylenenitrilo)tetraacetic acid

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Ethylenebis(oxyethylenenitrilo)tetraacetic acid Basic information

Product Name:
Ethylenebis(oxyethylenenitrilo)tetraacetic acid
Synonyms:
  • 3,6-DIOXAOCTAMETHYLENEDINITRILOTETRAACETIC ACID
  • 1,2-bis(2-dicarboxymethylaminoethoxy)ethane
  • 12-diazatetradecanedioicacid,3,12-bis(carboxymethyl)-9-dioxa-3
  • 6,9-Dioxa-3,12-diazatetradecanedioicacid,3,12-bis(carboxymethyl)-
  • 9-Dioxa-3,12-diazatetradecanedioicacid,3,12-bis(carboxymethyl)-6
  • ebonta
  • ethylenedioxybis(ethyleneamino)tetraaceticacid
  • ETHYLENE GLYCOL BIS-(BETA-AMINOETHYLETHER)-N,N,N',N'-TETRAACETIC
CAS:
67-42-5
MF:
C14H24N2O10
MW:
380.35
EINECS:
200-651-2
Product Categories:
  • Analytical Chemistry
  • Chelating Reagents
  • Complexones
  • EDTA Analogs
Mol File:
67-42-5.mol
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Ethylenebis(oxyethylenenitrilo)tetraacetic acid Chemical Properties

Melting point:
241 °C (dec.)(lit.)
Boiling point:
507.99°C (rough estimate)
Density 
1.2838 (rough estimate)
refractive index 
1.4590 (estimate)
storage temp. 
room temp
solubility 
0.1 M NaOH: 0.1 M at 20 °C, clear, colorless
pka
1.47±0.10(Predicted)
form 
Crystalline Powder
color 
White
Water Solubility 
slightly soluble
Merck 
14,3529
BRN 
1717370
CAS DataBase Reference
67-42-5(CAS DataBase Reference)
EPA Substance Registry System
Ethylenebis(oxyethylenenitrilo)tetraacetic acid (67-42-5)
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Safety Information

Hazard Codes 
Xi
Risk Statements 
36/37/38
Safety Statements 
24/25-36-26
WGK Germany 
2
RTECS 
AH3760000
TSCA 
Yes
HS Code 
29225000
Toxicity
LD50 orally in Rabbit: 3587 mg/kg

MSDS

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Ethylenebis(oxyethylenenitrilo)tetraacetic acid Usage And Synthesis

Description

Ethylenebis(oxyethylenenitrilo)tetraacetic acid is also named as Egtazic acid. It works as a chelating agent for the determination of calcium in the presence of magnesium.

Chemical Properties

White to slightly off-white powder

Uses

Pharmaceutic aid. EGTA.

Uses

Ethylene glycol-O,O'-bis(2-aminoethyl)-N,N,N',N'-tetraacetic acid is a chelating agent used for making complexes, especially for calcium ions, which help to determine calcium in the presence of magnesium. It can be used experimentally for treating animals possessing cerium poisoning. It is useful in the separation of thorium from monazite. It also acts as a buffer and is used in protein purification.

Uses

A chelating agent useful for the determination of calcium in the presence of magnesium.

Definition

ChEBI: A diether that is ethylene glycol in which the hydrogens of the hydroxy groups have been replaced by 2-[bis(carboxymethyl)amino]ethyl group respectively.

Biological Activity

Calcium chelator; protects against cell death caused by nitric oxide-induced calcium influx into nerve cells.

Safety Profile

Poison by intraperitoneal route. Moderately toxic by ingestion. When heated to decomposition it emits toxic fumes of NOx. See also GLYCOL ETHERS.

storage

Room temperature

Purification Methods

Dissolve EGTA in aqueous NaOH, precipitate it by adding aqueous HCl, wash it with water and dry at 100o in vacuo.[Beilstein 4 IV 217.]

Ethylenebis(oxyethylenenitrilo)tetraacetic acidSupplier

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