2-methanesulfonyl-5-methyl-1,3,4-oxadiazole CAS 205646-91-9
| CAS No. | 205646-91-9 |
| Molecular Formula | C4H6N2O3S |
| Molecular Weight | 162.17 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
2-methanesulfonyl-5-methyl-1,3,4-oxadiazole (CAS 205646-91-9) is a high-purity analytical reference standard with the molecular formula C4H6N2O3S and a molecular weight of 162.17 g/mol.
2-methanesulfonyl-5-methyl-1,3,4-oxadiazole (C4H6N2O3S) contains an amide group, a sulfone group, a carboxylic acid group, a hydroxyl 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. 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).
CATO manufactures 2-methanesulfonyl-5-methyl-1,3,4-oxadiazole under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C4H6N2O3S |
| Molecular Weight | 162.17 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 2015 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
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Recommended Standards
- 1-Methyl-5-(methylsulfonyl)-1H-tetrazole (CAS 96107-86-7)
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- 1-Methyl-1H-1,2,4-triazole-5-sulfonamide (CAS 29982-59-0)
- 3-Methyl-1H-1,2,4-triazole-5-sulfonamide (CAS 29982-54-5)
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Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com