4,5-Dimethylthiophene-2-sulfonamide CAS 140646-53-3
| CAS No. | 140646-53-3 |
| Molecular Formula | C6H9NO2S2 |
| Molecular Weight | 191.27 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 4,5-Dimethylthiophene-2-sulfonamide (CAS 140646-53-3), a certified reference material (molecular formula C6H9NO2S2, MW 191.27 g/mol) for analytical method development and quality control.
4,5-Dimethylthiophene-2-sulfonamide (C6H9NO2S2) contains an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage. The carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures 4,5-Dimethylthiophene-2-sulfonamide 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 | C6H9NO2S2 |
| Molecular Weight | 191.27 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.) | 1997 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 2 |
Related Dimethylthiophene Standards
- 2,5-Dimethylthiophene-3-sulfonamide (CAS 140646-60-2)
- 3,5-dimethylthiophene-2-sulfonamide (CAS 1519966-29-0)
- 2,4-Dimethylthiophene-3-sulfonamide (CAS 208775-25-1)
- N,5-dimethylthiophene-2-sulfonamide (CAS 61714-51-0)
- Ethyl 3,5-dimethylthiophene-2-carboxylate (CAS 132039-30-6)
- Ethyl 4,5-Dimethylthiophene-3-carboxylate (CAS 19156-44-6)
- Ethyl 2,4-dimethylthiophene-3-carboxylate (CAS 36382-81-7)
- 3,4-Dimethylthiophene-2,5-dicarboxylic acid (CAS 19799-13-4)
Recommended Standards
- 5-Ethylthiophene-2-sulfonamide (CAS 140646-34-0)
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- N-(4-ethoxyphenyl)-2-((furan-2-ylmethyl)amino)-2-thioxoacetamide (CAS 306732-53-6)
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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