| CAS No. | 20731-62-8 |
| Molecular Formula | Tm |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including Thulium sulfate hydrate, 99.99%.
CATO supplies Thulium sulfate hydrate, 99.99% (CAS 20731-62-8), a certified reference material (molecular formula TmH2O4S, MW 267.00 g/mol) for analytical method development and quality control.
Thulium sulfate hydrate, 99.99% (TmH2O4S) contains a sulfone group. 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), Thulium sulfate hydrate, 99.99% 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.
| Molecular Formula | Tm H2O4S |
| Molecular Weight | 267.00 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.) | 1962 |
| Sulfur Atoms | 1 |