Skip to Content
Merck
All Photos(6)

Key Documents

E5134

Sigma-Aldrich

Ethylenediaminetetraacetic acid disodium salt dihydrate

Ethylenediaminetetraacetic acid disodium salt dihydrate

suitable for electrophoresis, for molecular biology, 99.0-101.0% (titration)

Synonym(s):

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

Sign Into View Organizational & Contract Pricing


About This Item

Empirical Formula (Hill Notation):
C10H14N2Na2O8 · 2H2O
CAS Number:
Molecular Weight:
372.24
Beilstein:
3900609
EC Number:
UNSPSC Code:
12352107
PubChem Substance ID:
NACRES:
NA.31
Pricing and availability is not currently available.

grade

for molecular biology

Quality Level

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

Looking for similar products? Visit Product Comparison Guide

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[1]

Application

Chelator of divalent cations. Inhibits enzymes, such as metalloproteases, that require divalent cations for activity.
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[2]
  • an anticoagulant for whole blood collection[1]
  • a stabilizer solution for freezing cell culture samples[3]
  • in combination with PBS and trypsin, to trypsinize cells[4]
  • for phytoextraction of heavy metals in polluted soils[5]

Features and Benefits

  • Molecular Biology grade, suitable for many molecular biology applications
  • Free of endonucleases DNase, RNase, Nickase, and Protease

Other Notes

For additional information on our range of Biochemicals, please complete this form.

Pictograms

Exclamation markHealth hazard

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

Choose from one of the most recent versions:

Certificates of Analysis (COA)

Lot/Batch Number

Don't see the Right Version?

If you require a particular version, you can look up a specific certificate by the Lot or Batch number.

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

External quality assessment of methylmalonic acid and total homocysteine.
M?ller J, et al.
Clinical Chemistry, 45(9), 1536-1542 (1999)
Chelant-enhanced heavy metal uptake by Eucalyptus trees under controlled deficit irrigation
Fine P et al.
The Science of the Total Environment, 493, 995-1005 (2014)
Ana Amaral et al.
Animals : an open access journal from MDPI, 11(1) (2021-01-21)
Neutrophils can originate neutrophil extracellular traps (NETs). Myeloperoxidase (MPO) is a peroxidase found in NETs associated to equine endometrosis and can be inhibited by 4-aminobenzoic acid hydrazide (ABAH). Metallopeptidases (MMPs) participate in extracellular matrix stability and fibrosis development. The objectives
External quality assessment of methylmalonic acid and total homocysteine
Clinical Chemistry, 45, 1536-1542 (1999)
Erwin G Zoetendal et al.
Nature protocols, 1(2), 954-959 (2007-04-05)
The human gastrointestinal (GI) tract contains a complex microbial community that consists of numerous uncultured microbes. Therefore, nucleic-acid-based approaches have been introduced to study microbial diversity and activity, and these depend on the proper isolation of DNA, rRNA and mRNA.

Protocols

Formaldehyde cross-linking protocol detects specific protein interactions with confidence.

Formaldehyde cross-linking protocol detects specific protein interactions with confidence.

Formaldehyde cross-linking protocol detects specific protein interactions with confidence.

Formaldehyde cross-linking protocol detects specific protein interactions with confidence.

See All

Questions

1–7 of 7 Questions  
  1. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer
    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

      Helpful?

  2. How can I determine the shelf life / expiration / retest date of this product?

    1 answer
    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/449/386/product-dating-information-mk.pdf

      Helpful?

  3. Product E5134 has a re-test date of Aug. 2023. Has the re-test been completed?

    1 answer
    1. The specific lot number is required to determine the retest status. You may obtain this lot status by contacting our Technical Service team. We kindly ask you to navigate to the link https://www.sigmaaldrich.com/techservice, click on "Product Technical Inquires" under the Products Section with all the required information, including the specific lot number, so that a member of our team can reach out to you to assist further. Thank you.

      Helpful?

  4. Is Product E5134, EDTA disodium salt, stable in solution?

    1 answer
    1. Yes. A 0.5 M stock solution at pH 8.5 is stable for months at 2-8°C.

      Helpful?

  5. Can solutions of Product E5134, EDTA disodium salt, be autoclaved?

    1 answer
    1. Yes.

      Helpful?

  6. What is the Department of Transportation shipping information for this product?

    1 answer
    1. 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.

      Helpful?

  7. What is the working concentration for Product E5134, EDTA disodium salt, for use as an anti-coagulant?

    1 answer
    1. The optimal concentration is 1.5 mg per mL of blood.

      Helpful?

Reviews

Active Filters

  1. 1 Ratings-Only Review

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service