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ED3SS

Sigma-Aldrich

Ethylenediaminetetraacetic acid trisodium salt hydrate

≥95%

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Synonym(s):
(Ethylenedinitrilo)tetraacetic acid trisodium salt hydrate, EDTA trisodium salt hydrate, Edathamil hydrate
Empirical Formula (Hill Notation):
C10H13N2Na3O8 · xH2O
CAS Number:
Molecular Weight:
358.19 (anhydrous basis)
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.77

biological source

synthetic (organic)

Quality Level

Assay

≥95%

form

powder

reaction suitability

reagent type: chelator

mp

300 °C

solubility

1 M NaOH: soluble, clear, colorless to light yellow

storage temp.

room temp

SMILES string

O.[Na+].[Na+].[Na+].OC(=O)CN(CCN(CC([O-])=O)CC([O-])=O)CC([O-])=O

InChI

1S/C10H16N2O8.3Na.H2O/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);;;;1H2/q;3*+1;/p-3

InChI key

KKTNQJMZBPLVKM-UHFFFAOYSA-K

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This Item
E5391ED2PE4884
form

powder

form

powder

form

powder

form

solid

mp

300 °C

mp

-

mp

255-280 °C (dec.) (lit.)

mp

248 °C (dec.) (lit.)

solubility

1 M NaOH: soluble, clear, colorless to light yellow

solubility

H2O: 0.1 M, clear, colorless

solubility

3 M KOH: 160 mg/mL, clear to very slightly hazy, colorless to faintly yellow

solubility

H2O: 100 g/L at 20 °C

storage temp.

room temp

storage temp.

room temp

storage temp.

room temp

storage temp.

room temp

Quality Level

200

Quality Level

200

Quality Level

200

Quality Level

200

Application

Used to eliminate enzyme inhibition by traces of heavy metals, and to inhibit enzymes that require divalent cations as cofactors.

Other Notes

This is a physical blend of the disodium and tetrasodium salts of EDTA.

Pictograms

Exclamation mark

Signal Word

Warning

Hazard Statements

Hazard Classifications

Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3

Target Organs

Respiratory system

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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Marc Gentzel et al.
Methods (San Diego, Calif.), 164-165, 67-72 (2019-04-07)
The identification of bona fide protein-protein interactions and the mapping of proteomes was greatly enhanced by protein tagging for generic affinity purification methods and analysis by mass spectrometry (AP-MS). The high quality of AP-MS data permitted the development of proteomic

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