| CAS No. | 17927-65-0 |
| Molecular Formula | 3*O4S |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
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.
Aluminum sulfate (CAS 17927-65-0), molecular formula O4SAlH2O and molecular weight 141.05 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a sulfone group, Aluminum sulfate is typically white to off-white liquid. Its solid-state physicochemical attributes — including a molecular weight of 141.05 g/mol — guide the selection of appropriate sample preparation and analytical techniques.
As a certified reference material (CRM), Aluminum sulfate 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 | 3*O4S 2*Al H2O |
| Molecular Weight | 141.05 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 |
| Sulfur Atoms | 1 |