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EDTA-2K.2H2O is used as a food additive.
EDTA-2K.2H2O is used to eliminate inhibition of enzyme catalyzed reactions due to traces of heavy metals. It is involved in the study of chelators, biochemicals and reagents as well as in the study of the three dimensional hierarchy structures from self-assembly of quantum dots. It also acts as a catalyst by partially removing thiol stabilizers from the nanoparticle surface to induce the stabilization reaction of CdTe nanoparticles.
| Items | Technical index |
| Product name | EDTA-2K.2H2O |
| CAS NO. | 25102-12-9 |
| Molecular formula | C10H18K2N2O10 |
| Molecular weight | 404.45 |
| Appearance | White crystalline powder |
| Purity | 99%min |
| Product parameters | |
| Cas number: | 25102-12-9 |
| Appearance: | White crystalline powder |
| Purity: | 99%min |
| Package details: | 25kg/bag |
| Brand: | Fortunachem |
EDTA-K2·2H2O (Ethylenediaminetetraacetic acid dipotassium salt dihydrate) is a highly effective chemical anticoagulant widely used in medical and laboratory settings.
Structurally, it acts as a powerful chelating agent. Its primary mechanism involves binding to calcium ions (Ca²⁺) in the blood to form stable complexes. Since calcium is an essential co-factor for the blood clotting cascade, removing it effectively prevents the blood sample from coagulating.
Here are its primary uses and key selling points:
Primary Uses
Complete Blood Count (CBC): It is the gold standard anticoagulant for routine hematology tests, including red blood cell, white blood cell, and platelet counts.
Glycated Hemoglobin (HbA1c) Testing: Used to assess average blood sugar levels over the past 2-3 months for diabetes monitoring.
Blood Typing & Cross-matching: Maintains the integrity of red blood cells for immunoserological analysis.
Molecular Biology: Frequently used in DNA extraction and PCR processes where preserving nucleic acid integrity is critical.
Key Selling Points
Superior Cell Morphology Preservation: Unlike other anticoagulants (such as heparin or oxalates), EDTA-K2 has minimal impact on the shape and volume of blood cells. This makes it exceptionally reliable for microscopic examinations and automated cell analyzers.
Excellent Solubility & Rapid Action: Compared to its sodium counterpart (EDTA-Na2), the dipotassium salt has significantly higher solubility. This allows it to dissolve quickly and completely into the blood sample upon collection, ensuring immediate and uniform anticoagulation.
Dry Coating Compatibility: It is commonly applied as a spray-dried powder coating inside vacuum blood collection tubes. This dry format prevents sample dilution and osmotic interference, which guarantees highly precise cell analysis results.
Effective Platelet Protection: It effectively inhibits platelet aggregation, making it the preferred choice for accurate platelet counting.
In summary, EDTA-K2·2H2O is the industry-standard choice for hematology because it perfectly balances rapid anticoagulation with the exceptional preservation of blood cell structure.
Used in medicine, food, detergent, etc
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