Ethylenediaminetetraacetic acid tripotassium salt dihydrate - ≥99% , CAS No.65501-24-8

CAS: 65501-24-8 Cat. No.: E111797 Molecular Weight: 442.54 Beilstein Registry Number: 6762497 EC Number: 676-659-9

GRADE & PURITY ≥99%

Synonyms

Potassium 2,2'-((2-((carboxylatomethyl)(carboxymethyl)amino)ethyl)azanediyl)diacetate dihydrate | Edta tripotassium salt dihydrate

Storage

Room temperature

Shipped In

Normal

Specifications

Synonyms

Potassium 2, 2'-((2-((carboxylatomethyl)(carboxymethyl)amino)ethyl)azanediyl)diacetate dihydrate | Edta tripotassium salt dihydrate

Specifications & Purity

≥99%

Biochemical and Physiological Mechanisms

Ethylene diamine tetraacetic acid (EDTA) chelates divalent cations like calcium and magnesium in whole blood. It is usually available as a salt, complexed with either potassium or sodium. It is mostly used during hematological tests of the blood sample. I

Storage

Room temperature

Shipped In

Normal

Purity

≥99%

Names and Identifiers

• Pubchem Sid: 488192356
• Pubchem Sid Url: https://pubchem.ncbi.nlm.nih.gov/substance/488192356
• Canonical Smiles: C(CN(CC(=O)[O-])CC(=O)[O-])N(CC(=O)O)CC(=O)[O-].O.O.[K+].[K+].[K+]
• IUPAC Name: tripotassium;2-[2-[bis(carboxylatomethyl)amino]ethyl-(carboxymethyl)amino]acetate;dihydrate
• InChIKey: MAPFUJCWRWFQIY-UHFFFAOYSA-K
• INCHI: 1S/C10H16N2O8.3K.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;3*+1;;/p-3
• Isomeric SMILES: C(CN(CC(=O)[O-])CC(=O)[O-])N(CC(=O)O)CC(=O)[O-].O.O.[K+].[K+].[K+]
• WGK Germany: 3
• Molecular Weight: 442.54
• Beilstein: 6762497
• Reaxy-Rn: 34825067
• Reaxys-RN_link_address: https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=34825067&ln=

Taxonomic Classification

Taxonomy Tree

• Kingdom Organic compounds
  • Superclass Organic acids and derivatives
    • Class Carboxylic acids and derivatives
      • Subclass Tetracarboxylic acids and derivatives

• Kingdom: Organic compounds
• Superclass: Organic acids and derivatives
• Class: Carboxylic acids and derivatives
• Subclass: Tetracarboxylic acids and derivatives
• Intermediate Tree Nodes: Not available
• Direct Parent: Tetracarboxylic acids and derivatives
• Alternative Parents: Alpha amino acids Trialkylamines Carboxylic acid salts Amino acids Carboxylic acids Organopnictogen compounds Organic zwitterions Organic potassium salts Organic oxides Hydrocarbon derivatives Carbonyl compounds
• Molecular Framework: Aliphatic acyclic compounds
• Substituents: Tetracarboxylic acid or derivatives - Alpha-amino acid - Alpha-amino acid or derivatives - Amino acid or derivatives - Carboxylic acid salt - Amino acid - Tertiary amine - Tertiary aliphatic amine - Carboxylic acid - Organic alkali metal salt - Organic potassium salt - Organic nitrogen compound - Hydrocarbon derivative - Organooxygen compound - Organonitrogen compound - Organic oxide - Carbonyl group - Organopnictogen compound - Amine - Organic oxygen compound - Organic zwitterion - Organic salt - Aliphatic acyclic compound
• Description: This compound belongs to the class of organic compounds known as tetracarboxylic acids and derivatives. These are carboxylic acids containing exactly four carboxyl groups.
• External Descriptors: Not available

Data sources

1. Djoumbou Feunang Y, Eisner R, Knox C, Chepelev L, Hastings J, Owen G, Fahy E, Steinbeck C, Subramanian S, Bolton E, Greiner R, and Wishart DS. ClassyFire: Automated Chemical Classification With A Comprehensive, Computable Taxonomy. Journal of Cheminformatics, 2016, 8:61.

DOI: 10.1186/s13321-016-0174-y

Chemical and Physical Properties

• Solubility: Soluble in water and potassium hydroxide.
• Melt Point(°C): 182°C
• Molecular Weight: 442.540 g/mol
• Hydrogen Bond Donor Count: 3
• Hydrogen Bond Acceptor Count: 12
• Rotatable Bond Count: 8
• Exact Mass: 441.979 Da
• Monoisotopic Mass: 441.979 Da
• Topological Polar Surface Area: 166.000 Ų
• Heavy Atom Count: 25
• Formal Charge: 0
• Complexity: 351.000
• Isotope Atom Count: 0
• Defined Atom Stereocenter Count: 0
• Undefined Atom Stereocenter Count: 0
• Defined Bond Stereocenter Count: 0
• Undefined Bond Stereocenter Count: 0
• The total count of all stereochemical bonds: 0
• Covalently-Bonded Unit Count: 6

XLogP3

References

1. Xiaohua Tian, Jiangdong Dai, Lulu Wang, Atian Xie, Jinsong He, Yongsheng Yan.  (2020)  Vertically/parallelly orientated growth of NiCo2O4 nanosheet onto surface of hierarchically N-doped porous carbon for improved supercapacitor.  MATERIALS TECHNOLOGY,      [PMID:] [10.1080/10667857.2019.1699263]

2. Shuai-Qi Guo, Lei He, Dan-Xuan Fang, Ya-Nan Wu, Fu-Rong Zeng, Ming-Jun Chen, Hai-Bo Zhao, Yu-Zhong Wang.  (2025)  Respirator-inspired shielding and catalytic oxidation strategies for smoke-suppression polymers, enhancing fire safety.  Materials Horizons,      [PMID:39925220] [10.1039/D4MH01820F]

3. Linghao Zhao, Wei Yang, Shengjin Cui, Jingang Luo, Yaxin Cao, Nan Yan, Hongying Wang.  (2026)  Interference Assessment for High-Performance Liquid Chromatography HbA1c Assays.  BIOMEDICAL CHROMATOGRAPHY,  40  (3): (e70382).  [PMID:41631984] [10.1002/bmc.70382]