Disodium Etidronate Hydrate CAS 656253-47-3
| CAS No. | 656253-47-3 |
| Molecular Formula | C2H8O7P2 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
Disodium Etidronate Hydrate (CAS 656253-47-3) is a high-purity analytical reference standard with the molecular formula C2H8O7P2NaH2O and a molecular weight of 247.03 g/mol.
The molecular framework of Disodium Etidronate Hydrate (C2H8O7P2NaH2O) is characterized by a phosphate ester group, a carboxylic acid group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the polarity and ionization state of its functional groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development.
As a certified reference material (CRM), Disodium Etidronate Hydrate 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 | C2H8O7P2 Na H2O |
| Molecular Weight | 247.03 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | -2.0 |
| CAS Registry Year (est.) | 1985 |
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