edetic acid

Also known as EDTA, {[-(bis-carboxymethyl-amino)-ethyl]-carboxymethyl-amino}-acetic acid, N,N'-1,2-ethane diylbis-(N-(carboxymethyl)glycine), H4Edta, versene Acid, ethylenediaminetetraacetic acid

chemical compound used for industrial and chemical purpose

Chemical data

Formula: C10H16N2O8
Molecular weight: 292.24 g/mol
IUPAC name: 2-[2-[bis(carboxymethyl)amino]ethyl-(carboxymethyl)amino]acetic acid
SMILES: C(CN(CC(=O)O)CC(=O)O)N(CC(=O)O)CC(=O)O
InChIKey: KCXVZYZYPLLWCC-UHFFFAOYSA-N
XLogP: -5.9
Polar surface area: 156 Å²
H-bond donors: 4
H-bond acceptors: 10
Formal charge: 0

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Research

28,812 papers

Edetic acid therapy.JAMA · 1970
51Cr-edetic-acid clearance and G.F.R.Lancet (London, England) · 1968
Edetic-acid test of parathyroid insufficiency.Lancet (London, England) · 1963
The control of nitrilotriacetic acid in edetic acid and its salts by liquid chromatography.Journal of pharmaceutical and biomedical analysis · 2003
P1 Buffer.Cold Spring Harbor protocols · 2017

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~18 min read

Encyclopedic overview

Ethylenediaminetetraacetic acid (EDTA), also called EDTA acid, is an aminopolycarboxylic acid with the formula [CH2N(CH2CO2H)2]2. This white, slightly water-soluble solid is widely used to bind to iron (Fe/Fe) and calcium ions (Ca), forming water-soluble complexes even at neutral pH. It is thus used to dissolve Fe- and Ca-containing scale as well as to deliver iron ions under conditions where its oxides are insoluble. EDTA is available as several salts, notably disodium EDTA, sodium calcium edetate, and tetrasodium EDTA, but these all function similarly.

Uses

Excerpted from Wikipedia’s “edetic acid” article, available under the CC BY-SA 4.0 licence.