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6381-92-6 - Ethylenediaminetetraacetic acid disodium salt dihydrate, 99+% - EDTA disodium salt dihydrate - A15161 - Alfa Aesar

A15161 Ethylenediaminetetraacetic acid disodium salt dihydrate, 99+%

CAS Number
EDTA disodium salt dihydrate

Size Price ($) Quantity Availability
250g 35.90
1000g 104.00
5000g 426.00
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Ethylenediaminetetraacetic acid disodium salt dihydrate, 99+%


Chemical Properties

Formula Weight
372.24 (336.22anhy)
Melting point
248° dec.
Soluble in water.


Ethylenediaminetetraacetic acid disodium salt dihydrate is used as a chelator of divalent cations. It inhibits enzymes such as metalloproteases that require divalent cations for activity. It is also used in chelation therapy. It acts as a sequestering agent in shampoos, cleaners and other personal care products and serves as an anticoagulant for blood samples.


Hygroscopic.Incompatible with strong oxidizing agents, strong bases, metals and copper.

Literature References

Hexadentate chelating ligand for di- and trivalent cations.

Lebeau, D.; Reiller, P. E.; Lamouroux, C. Direct analysis of ethylenediaminetetraacetic acid (EDTA) on concrete by reactive-desorption electrospray ionization mass spectrometry. Talanta 2015, 132, 877-883.

Meszaros, A.; Fekete, J. Determination of Ethylenediaminetetraacetic Acid from Swine Organs, Feces, Urine, and Plasma by Liquid Chromatography Tandem Mass Spectrometry. Food. Anal .Methods. 2015, 8 (3), 678-684.

Tirler, A. O.; Hofer, T. S. A Comparative Study of [CaEDTA]2- and [MgEDTA]2-: Structural and Dynamical Insights from Quantum Mechanical Charge Field Molecular Dynamics. J. Phys. Chem. B 2015, 119 (27), 8613-8622.

GHS Hazard and Precautionary Statements

Precautionary Statements: P260u-P201-P280-P303+P361+P353-P305+P351+P338-P301+P330+P331-P304+P340-P310a-P405-P501a

Obtain special instructions before use. Wear protective gloves/protective clothing/eye protection/face protection. IF ON SKIN (or hair): Remove/Take off immediately all contaminated clothing. Rinse skin with water/shower. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. IF SWALLOWED: Rinse mouth. Do NOT induce vomiting. IF INHALED: Remove to fresh air and keep at rest in a position comfortable for breathing. Store locked up. Dispose of contents/container in accordance with local/regional/national/international regulations.

Other References

Harmonized Tariff Code


  • A10221

    Imidazole, 99%
  • A10395

    Citric acid, 99+%
  • A12313

    Sodium chloride, crystalline powder PDV, 99+%
  • A16346

    Cobalt(II) chloride hexahydrate, 98%
  • 14178

    Copper(II) sulfate pentahydrate, ACS, 98.0-102.0%

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