5-Ethynylthiophene-2-sulfonamide CAS 850340-82-8
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 850340-82-8 |
| Molecular Formula | C6H5NO2S2 |
| Molecular Weight | 187.24 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
5-Ethynylthiophene-2-sulfonamide (CAS 850340-82-8) is a high-purity pharmaceutical standards reference standard from CATO, an ISO 17034 accredited reference material producer. Molecular formula: C6H5NO2S2. Molecular weight: 187.24 g/mol. Each batch is supplied with a Certificate of Analysis (COA).
Physical & Chemical Properties
| Molecular Formula | C6H5NO2S2 |
| Molecular Weight | 187.24 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) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 2 |
Related Ethynylthiophene Standards
- Methyl 4-ethynylthiophene-2-carboxylate (CAS 1448423-03-7)
- Methyl 5-ethynylthiophene-2-carboxylate (CAS 177575-26-7)
- Methyl 3-ethynylthiophene-2-carboxylate (CAS 1800082-83-0)
- 5-Ethynylthiophene-2-carboxylic acid (CAS 174672-58-3)
- 3-Ethynylthiophene-2-carboxylic acid (CAS 1849196-26-4)
- 5-Ethynylthiophene-3-carboxylic acid (CAS 1849280-96-1)
- 4-Ethynylthiophene-2-carboxylic acid (CAS 1935990-01-4)
- 3-Ethynylthiophene-2-carbaldehyde (CAS 221103-69-1)
Recommended Standards
- 5-Ethyl-2-methyl-1H-indole-3-carbaldehyde (CAS 876716-49-3)
- 5-Hydroxy-2,3,4,9-tetrahydrocarbazole (CAS 35618-96-3)
- 5'-Cyanonicotine (CAS 42459-12-1)
- (3-Fluoro-5-(p-tolylcarbamoyl)phenyl)boronic acid (CAS 2096336-14-8)
- Salantel (CAS 36093-47-7)
- 3-(4-Methyl-1h-pyrazol-1-yl)-1-(methylamino)cyclopentane-1-carboxylic acid (CAS 1510445-29-0)
- 3-(6-Aminopyridin-3-yl)propanoic acid (CAS 446263-96-3)
- 6-Hydroxyhexanenitrile (CAS 2453-48-7)
- 1-(2-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)benzyl)-1H-imidazole (CAS 2246863-75-0)
- Semaglutide impurity 97 (CAS CATO-C4X-222697)
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