Ruthenium(VIII) oxide CAS 20427-56-9
| CAS No. | 20427-56-9 |
| Molecular Formula | O4Ru |
| Molecular Weight | 165.07 g/mol |
| 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.
Ruthenium(VIII) oxide (CAS 20427-56-9) is a high-purity analytical reference standard with the molecular formula O4Ru and a molecular weight of 165.07 g/mol.
The molecular framework of Ruthenium(VIII) oxide (O4Ru) is characterized by an inorganic composition. 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.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | O4Ru |
| Molecular Weight | 165.07 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, keep sealed and dry |
| Solubility (reference) | Freely soluble in water |
| Stability | Hygroscopic; reseal immediately after opening |
| CAS Registry Year (est.) | 1962 |
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