| CAS No. | 69749-91-3 |
| Molecular Formula | C4H5NO2S2 |
| Molecular Weight | 163.22 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Compared with other compounds in its class, the molecular weight of 163.22 g/mol gives 2-methanesulfonyl-1,3-thiazole distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies 2-methanesulfonyl-1,3-thiazole (CAS 69749-91-3), a certified reference material (molecular formula C4H5NO2S2, MW 163.22 g/mol) for analytical method development and quality control.
Owing to an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, 2-methanesulfonyl-1,3-thiazole is typically white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 163.22 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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), 2-methanesulfonyl-1,3-thiazole 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 | C4H5NO2S2 |
| Molecular Weight | 163.22 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1976 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 2 |