Disodium methane arsonate hexahydrate CAS 144-21-8
| CAS No. | 144-21-8 |
| Molecular Formula | CH3AsO3 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Disodium methane arsonate hexahydrate (CAS 144-21-8) is a high-purity analytical reference standard with the molecular formula CH3AsO3Na and a molecular weight of 160.94 g/mol.
Disodium methane arsonate hexahydrate (CH3AsO3Na) contains an organic framework. It is notably hygroscopic; these physicochemical properties determine the optimal preparation and storage of its standard solutions.
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), Disodium methane arsonate hexahydrate 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 | CH3AsO3 2*Na |
| Molecular Weight | 160.94 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 0.5 |
| CAS Registry Year (est.) | 1957 |
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