| CAS No. | 16469-18-4 |
| Molecular Formula | H3GdO3 |
| Molecular Weight | 208.27 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Gadolinium(III) hydroxide,99.90% (H3GdO3) contains an inorganic composition. It is notably hygroscopic; these physicochemical properties determine the optimal preparation and storage of its standard solutions.
Gadolinium(III) hydroxide,99.90% (CAS 16469-18-4), molecular formula H3GdO3 and molecular weight 208.27 g/mol, is a CATO reference standard with documented purity and traceability.
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.
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.
| Molecular Formula | H3GdO3 |
| Molecular Weight | 208.27 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.) | 1961 |