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Ethylenediaminetetraacetic acid iron(III) sodium salt


Edathamil, EDTA iron(III) sodium salt, Komplexon II
Linear Formula:
CAS Number:
Molecular Weight:
EC Number:
MDL number:
PubChem Substance ID:

Quality Level

biological source

synthetic (organic)


≥67.5% (EDTA titration)




Iron, 13.7-18.7% ICP
Sodium, 5.6-7.9% ICP


80  °C


water: 50 mg/mL, clear to slightly hazy, yellow to brown

storage temp.

room temp

SMILES string




InChI key


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Used to eliminate enzyme inhibition by traces of heavy metals, and to inhibit enzymes that require divalent cations as cofactors. Iron-EDTA enhances damage due to reactive oxygen species, such as depletion of reduced glutathione, formation of methemoglobin, and lipid peroxidation.


100, 250 g in poly bottle
1 kg in poly bottle

Legal Information

Komplexon is a trademark of CU Chemie Uetikon AG

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

Certificate of Analysis

Certificate of Origin

Natasha T Forester et al.
Molecular plant-microbe interactions : MPMI, 32(10), 1324-1335 (2019-05-21)
In ascomycetes and basidiomycetes, iron-responsive GATA-type transcriptional repressors are involved in regulating iron homeostasis, notably to prevent iron toxicity through control of iron uptake. To date, it has been unknown whether this iron regulator contributes toward mutualistic endosymbiosis of microbes...
María J Binaghi et al.
Archivos latinoamericanos de nutricion, 61(3), 316-322 (2012-06-16)
Home-made diets are the most frequently used complementary foods. In the present work we evaluated iron and zinc availability in a usually consumed infant diet containing either iron-fortified bread with different iron sources: ferrous sulfate, ferrous bisglycinate, NaFeEDTA. We also...
Bo Wang et al.
Wei sheng yan jiu = Journal of hygiene research, 40(3), 334-337 (2011-06-24)
To assess the effectiveness of social mobilization and social marketing in promoting NaFeEDTA-fortified soy sauce in an iron deficient population. This study was an uncontrolled, community-based, before-after study, which was implemented in three counties of Shijiazhuang Municipality. The intervention was...
Suying Chang et al.
Food and nutrition bulletin, 33(2), 111-116 (2012-08-23)
Ferric sodium ethylenediaminetetraacetate (NaFeEDTA) enhances iron absorption in the presence of phytate. However, the amount of NaFeEDTA that would have to be added to a complementary food to provide the necessary intake of iron for an infant or young child...
Catherine W Macharia-Mutie et al.
The Journal of nutrition, 142(9), 1756-1763 (2012-07-20)
Few studies have evaluated the impact of fortification with iron-rich foods such as amaranth grain and multi-micronutrient powder (MNP) containing low doses of highly bioavailable iron to control iron deficiency anemia (IDA) in children. We assessed the efficacy of maize...

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