| CAS No. | 7757-82-6 |
| Molecular Formula | O4S |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
CATO supplies Sodium sulfate, anhydrous (CAS 7757-82-6), a certified reference material (molecular formula O4SNa, MW 119.05 g/mol) for analytical method development and quality control.
Owing to a sulfone group, Sodium sulfate, anhydrous is typically white to off-white liquid. Its solid-state physicochemical attributes — including a molecular weight of 119.05 g/mol — guide the selection of appropriate sample preparation and analytical techniques.
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), Sodium sulfate, anhydrous 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 | O4S 2*Na |
| Molecular Weight | 119.05 g/mol |
| Purity | N/A |
| 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.) | 1959 |
| Sulfur Atoms | 1 |