Platinum(IV) oxide monohydrate CAS 12137-21-2
| CAS No. | 12137-21-2 |
| Molecular Formula | O2Pt |
| 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.
Platinum(IV) oxide monohydrate (CAS 12137-21-2), molecular formula O2PtH2O and molecular weight 245.09 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to an inorganic composition, Platinum(IV) oxide monohydrate is typically white to off-white crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 245.09 g/mol — guide the selection of appropriate sample preparation and analytical techniques.
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 | O2Pt H2O |
| Molecular Weight | 245.09 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), keep sealed and dry |
| Solubility (reference) | Freely soluble in water |
| Stability | Hygroscopic; reseal immediately after opening |
| CAS Registry Year (est.) | 1960 |
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- Semaglutide Impurity 166 (CAS 1395881-03-4)
Why CATO?
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