EDTA (copper disodium tetrahydrate) CAS 36703-61-4
| CAS No. | 36703-61-4 |
| Molecular Formula | C10H14CuN2O9 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The molecular framework of EDTA (copper disodium tetrahydrate) (C10H14CuN2O9NaH2O) is characterized by a carbohydrate-derived structure, an amide group. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
CATO supplies EDTA (copper disodium tetrahydrate) (CAS 36703-61-4), a certified reference material (molecular formula C10H14CuN2O9NaH2O, MW 410.78 g/mol) for analytical method development and quality control.
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
As a certified reference material (CRM), EDTA (copper disodium tetrahydrate) meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C10H14CuN2O9 2*Na 3*H2O |
| Molecular Weight | 410.78 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1967 |
| Nitrogen Atoms | 2 |
Related EDTA Standards
- EDTA (zinc) (CAS 12519-36-7)
- EDTA, 0.5 M, pH 8.0, molecular biology grade, DEPC treated (CAS 150-38-9)
- EDTA (dipotassium magnesium) (CAS 15708-48-2)
- EDTA,AM, 90% (CAS 162303-59-5)
- EDTA-3K (CAS 17572-97-3)
- EDTA (disodium zinc tetrahydrate) (CAS 176736-49-5)
- EDTA Sodium trihydrate ferric salt (CAS 18154-32-0)
- Edta (CAS 60-00-4)
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Why CATO?
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