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Ethylenediaminetetraacetic acid disodium salt dihydrate

BioUltra, for molecular biology, ≥99.0% (T)

Edetate disodium salt dihydrate, Disodium ethylenediaminetetraacetate dihydrate, EDTA disodium salt, Edathamil, EDTA-Na2, Sequestrene Na2
Empirical Formula (Hill Notation):
C10H14N2Na2O8 · 2H2O
Número de CAS:
Peso molecular:
EC Number:
PubChem Substance ID:

Quality Level


for molecular biology

product line



≥99.0% (T)


powder or crystals


DNases, none detected
RNases, none detected
insoluble matter, passes filter test
phosphatases, none detected
proteases, none detected


4.0-5.5 (25 °C, 0.1 M in H2O)


248 °C (dec.) (lit.)


H2O: 0.1 M at 20 °C, clear, colorless

anion traces

chloride (Cl-): ≤50 mg/kg
sulfate (SO42-): ≤50 mg/kg

cation traces

Al: ≤5 mg/kg
Ba: ≤5 mg/kg
Bi: ≤5 mg/kg
Ca: ≤10 mg/kg
Cd: ≤5 mg/kg
Co: ≤5 mg/kg
Cr: ≤5 mg/kg
Cu: ≤5 mg/kg
Fe: ≤5 mg/kg
K: ≤50 mg/kg
Li: ≤5 mg/kg
Mg: ≤5 mg/kg
Mn: ≤5 mg/kg
Mo: ≤5 mg/kg
Ni: ≤5 mg/kg
Pb: ≤5 mg/kg
Sr: ≤5 mg/kg
Zn: ≤5 mg/kg


0.1 M in H2O

UV absorption

λ: 260 nm Amax: 0.145
λ: 280 nm Amax: 0.025

SMILES string




InChI key


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Categorías relacionadas


Ethylenediaminetetraacetic acid disodium salt dehydrate can be used to study molecular biology, biochemicals, solutions and reagents, biological buffers, DNA and RNA purification, inorganic salts, essential chemicals and chelators. Ethylenediaminetetraacetic acid disodium salt dehydrate has been used in a study to advance monitoring of illegal thyreostatic drugs in livestock. Ethylenediaminetetraacetic acid disodium salt dehydrate has also been used in a study for the determination of 232Th in seawater by ICP-MS after preconcentration and separation using a chelating resin.
Chelator of divalent cations. Inhibits enzymes, such as metalloproteases, that require divalent cations for activity.

Other Notes

Running-buffer component for non-denaturing or urea-containing denaturing polyacrylamide gels in nucleic acid electrophoresis


Exclamation markHealth hazard



Hazard Classifications

Acute Tox. 4 Inhalation - Aquatic Chronic 3 - STOT RE 2 Inhalation

Target Organs

Respiratory Tract

Storage Class Code

11 - Combustible Solids

WGK Germany


Flash Point F

Not applicable

Flash Point C

Not applicable

Personal Protective Equipment

dust mask type N95 (US),Eyeshields,Gloves

Certificado de Análisis

Certificado de origen

J Vanden Bussche et al.
Analytical and bioanalytical chemistry, 403(10), 2973-2982 (2012-02-22)
Thyreostatic drugs, illegally administrated to livestock for fattening purposes, are banned in the European Union since 1981. For monitoring their illegal use, sensitive and specific analytical methods are required. In this context, the knowledge of the stability in a matrix...
R.C. Ogden et al.
Methods in Enzymology, 152, 65-65 (1987)
Suli Huang et al.
PloS one, 10(2), e0117007-e0117007 (2015-02-07)
microRNA (miRNA) plays a role in the pathogenesis of ischemic stroke, and single nucleotide polymorphisms in miRNA genes may contribute to disease susceptibility. However, the effect of miR-146a, miR-196a2, and miR-499 polymorphisms on ischemic stroke susceptibility has been rarely reported....
Lisa M Ryno et al.
Biomacromolecules, 15(8), 2944-2951 (2014-07-18)
End-functionalized macromolecular starch reagents, prepared by reductive amination, were grafted onto a urethane-linked polyester-based backbone using copper-catalyzed azide-alkyne cycloaddition (CuAAC) chemistry to produce novel amphiphilic hybrid graft copolymers. These copolymers represent the first examples of materials where the pendant chains...
Haiyan Zhang et al.
Analytica chimica acta, 770, 140-146 (2013-03-19)
A novel method for selective determination of Cr(III) and Cr(VI) in environmental water samples was developed based on target-induced fluorescence quenching of glutathione-stabilized gold nanoclusters (GSH-Au NCs). Fluorescent GSH-Au NCs were synthesized by a one-step approach employing GSH as reducing/protecting...

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