5-Nitrothiophene-3-sulfonamide CAS 55673-75-1
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 55673-75-1 |
| Molecular Formula | C4H4N2O4S2 |
| Molecular Weight | 208.22 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
5-Nitrothiophene-3-sulfonamide (CAS 55673-75-1) is a high-purity pharmaceutical standards reference standard from CATO, an ISO 17034 accredited reference material producer. Molecular formula: C4H4N2O4S2. Molecular weight: 208.22 g/mol. Each batch is supplied with a Certificate of Analysis (COA).
Physical & Chemical Properties
| Molecular Formula | C4H4N2O4S2 |
| Molecular Weight | 208.22 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) | 4.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1972 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 2 |
Related Nitrothiophene Standards
- 2-Nitrothiophene-3-sulfonamide (CAS 1421601-53-7)
- 5-Nitrothiophene-2-sulfonamide (CAS 17510-82-6)
- Ethyl 5-nitrothiophene-3-carboxylate (CAS 100958-70-1)
- EThyl 4-nitrothiophene-2-carboxylate (CAS 66117-32-6)
- Ethyl 5-nitrothiophene-2-carboxylate (CAS 5751-84-8)
- 3-Nitrothiophene-2,5-dicarboxylic acid (CAS 1437794-39-2)
- 2-Nitrothiophene-3,4-dicarboxylic acid (CAS 932032-15-0)
- 5-Methyl-4-nitrothiophene-2-sulfonamide (CAS 905839-54-5)
Recommended Standards
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- 2-Amino-2',4-dichlorodiphenyl ether (CAS 56966-48-4)
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- 2-(3-Methyl-1H-imidazol-3-ium-1-yl)-5-nitropyridine 1-oxide 4-methylbenzenesulfonate (CAS 66809-39-0)
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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 13829788188 / jacky.chen@cato-chem.com