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E4884

Sigma-Aldrich

Ethylenediaminetetraacetic acid disodium salt dihydrate

ACS reagent, 99.0-101.0%

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Synonym(s):
Disodium ethylenediaminetetraacetate dihydrate, EDTA disodium salt, EDTA-Na2, Edathamil, Edetate disodium salt dihydrate, Sequestrene Na2
Empirical Formula (Hill Notation):
C10H14N2Na2O8 · 2H2O
CAS Number:
Molecular Weight:
372.24
Beilstein:
3900609
EC Number:
PubChem Substance ID:
NACRES:
NA.77

grade

ACS reagent

Quality Level

Agency

suitable for SM 4500 - NH3

Assay

99.0-101.0%

form

solid

reaction suitability

reagent type: chelator

impurities

≤0.005% Insoluble matter
≤0.1% Nitrilotriacetic acid ([HOCOCH2]3N)

pH

4.0-6.0 (25 °C, 5%)

mp

248 °C (dec.) (lit.)

solubility

H2O: 100 g/L at 20 °C

cation traces

Fe: ≤0.01%
heavy metals: ≤0.005% (by ICP-OES)

application(s)

microbiology

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

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This Item
ED2SSE164427285
assay

99.0-101.0%

assay

98.5-101.5% (titration)

assay

98.5-101.5%

assay

99.0-101.0%

form

solid

form

powder

form

powder

form

crystals

impurities

≤0.005% Insoluble matter, ≤0.1% Nitrilotriacetic acid ([HOCOCH2]3N)

impurities

-

impurities

≤0.005% Phosphorus (P), ≤0.05% NH3, ≤0.1% Insoluble matter

impurities

residual solvents, complies, ≤0.001% cyanide (CN), ≤0.001% heavy metals (as Pb), ≤0.1% nitrilotriacetic acid (HPLC) (HPLC)

pH

4.0-6.0 (25 °C, 5%)

pH

-

pH

4.0-6.0 (0.1 M in H2O)

pH

4-5 (20 °C, 5%)

mp

248 °C (dec.) (lit.)

mp

248 °C (dec.) (lit.)

mp

248 °C (dec.) (lit.)

mp

248 °C (dec.) (lit.)

General description

Ethylenediaminetetraacetic acid disodium salt dihydrate or EDTA, is a chelating agent with many applications in molecular biology. EDTA is often used in buffers as a metal ion inhibitor to maintain the stability and integrity of biological samples. EDTA binds to metal cations by forming a stable octahedral complex. Its ability to chelate metal ions makes it extremely useful for blocking metal-dependent enzymatic activities, such as DNases and proteases. Additionally, EDTA is often found in cell culture media as a sequestrant to bind and neutralize metal ions present in the medium, thereby promoting cell growth and viability.

Application

Antioxidant assays (1) EDTA is also employed in molecular biology techniques, such as DNA extraction, purification, and electrophoresis, where it helps to prevent metal-mediated degradation of nucleic acids. Additionally, EDTA is utilized in cell culture media as a sequestrant to bind and neutralize metal ions present in the medium, thereby promoting cell growth and viability.
Ethylenediaminetetraacetic acid disodium salt dehydrate has been used as a component:
  • of radioimmunoprecipitation assay buffer (RIPA buffer) for preparation of C2C12 mouse skeletal myoblasts whole cell lysate
  • of lysis buffer and IgG resin wash and equilibration buffer for the purification of human proteasome regulatory particles (RPs)
  • of M-buffer for the isolation of human cardiomyocyte progenitor cells (CMPCs) from fetal heart

Chelator of divalent cations. Inhibits enzymes, such as metalloproteases, that require divalent cations for activity.

Features and Benefits

American Chemical Society (ACS) grade is suitable for use in standard analytical methods

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

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Human Cardiomyocyte Progenitor Cells in Co-culture with Rat Cardiomyocytes Form a Pro-arrhythmic Substrate: Evidence for Two Different Arrhythmogenic Mechanisms
Smit NW, et al.
Frontiers in Physiology, 8, 797-797 (2017)
Conformational landscape of the p28-bound human proteasome regulatory particle
Lu Y, et al.
Molecular Cell, 67(2), 322-333 (2017)
Mitophagy is required for mitochondrial biogenesis and myogenic differentiation of C2C12 myoblasts
Sin J, et al.
Autophagy, 12(2), 369-380 (2016)
Calcification in coronary artery disease can be reversed by EDTA-tetracycline long-term chemotherapy
Maniscalco BS and Taylor KA
Pathophysiology : The Official Journal of the International Society for Pathophysiology / ISP, 11(2), 95-101 (2004)
Comparison of the efficacy of ethylenediaminetetraacetic acid and tetracycline hydrochloride as root conditioning agents: An in vitro study
Nanda T, et al.
Journal of the International Clinical Dental Research Organization, 4(1), 2-2 (2012)

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