| CAS No. | 5961-88-6 |
| Molecular Formula | C3H4O4S |
| Molecular Weight | 136.13 g/mol |
| 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.
1,2-Oxathiolan-5-one 2,2-dioxide (CAS 5961-88-6), molecular formula C3H4O4S and molecular weight 136.13 g/mol, is a CATO reference standard with documented purity and traceability.
1,2-Oxathiolan-5-one 2,2-dioxide (C3H4O4S) contains a sulfone group, a carboxylic acid group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions.
As a certified reference material (CRM), 1,2-Oxathiolan-5-one 2,2-dioxide 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 | C3H4O4S |
| Molecular Weight | 136.13 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 2.0 |
| CAS Registry Year (est.) | 1958 |
| Sulfur Atoms | 1 |