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  • E7889 - Ethylenediaminetetraacetic acid disodium salt solution

E7889 Sigma-Aldrich

Ethylenediaminetetraacetic acid disodium salt solution

for molecular biology, 0.5 M in H2O, DNase, RNase, NICKase and protease, none detected

Synonym: (Ethylenedinitrilo)tetraacetic acid disodium salt, EDTA disodium salt, EDTA-Na2

  • CAS Number 139-33-3

  • Linear Formula [-CH2N(CH2CO2Na)CH2CO2H]2

  • Molecular Weight 336.21

  •  Beilstein Registry Number 3822669

  •  MDL number MFCD00070672

  •  PubChem Substance ID 24894660



Preparation Note

Prepared in 18 megohm water with Molecular Biology Reagent EDTA (E 5134)

Safety & Documentation

Safety Information

NONH for all modes of transport
WGK Germany 


Certificate of Analysis

Certificate of Origin

Frequently Asked Questions

Can a solution ofEDTA disodium salt, Product E7889, be autoclaved?
Yes, solutions of EDTA may be autoclaved.
What is the pH of E7889, EDTA disodium saltsolution?
E7889 has a pH specification of 7.5 to 8.5 at 25 °C.
How many divalent cations doesProduct E7889,EDTA disodium salt, complex with?
EDTA forms 1:1 complex with divalent cations.
What type of biological activity doesProduct E7889, EDTA disodium salt, exhibit?
EDTA is a metal ion-dependent enzyme inhibitor. It may be used as a metalloprotease inhibitor at a concentration of 1-10 μm, or as a DNAse I inhibitor at a concentration of 1-10 mM.
At what concentration should I useProduct E7889, EDTA disodium salt, as an anticoagulant?
The optimal concentration of EDTA to be used as an anticoagulant is 1.5 mg of EDTA disodium salt per ml of blood or 1-2 drops of a 2% EDTA solution per ml of blood.
Which document(s) contains shelf-life or expiration date information for a given product?
If available for a given product, the recommended re-test date or the expiration date can be found on the Certificate of Analysis.
How do I get lot-specific information or a Certificate of Analysis?
The lot specific COA document can be found by entering the lot number above under the "Documents" section.
How do I find price and availability?
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What is the Department of Transportation shipping information for this product?
Transportation information can be found in Section 14 of the product's (M)SDS.To access the shipping information for this material, use the link on the product detail page for the product.
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