3-Methylthiophene-2-sulfonic acid CAS 1159877-58-3
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 1159877-58-3 |
| Molecular Formula | C5H6O3S2 |
| Molecular Weight | 178.23 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
High-purity 3-Methylthiophene-2-sulfonic acid (CAS 1159877-58-3) pharmaceutical standards reference standard. Molecular formula: C5H6O3S2. Molecular weight: 178.23 g/mol. Produced by CATO, one of China's leading reference material manufacturers, with COA documentation and global shipping.
Physical & Chemical Properties
| Molecular Formula | C5H6O3S2 |
| Molecular Weight | 178.23 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1989 |
| Sulfur Atoms | 2 |
Related Methylthiophene Standards
- 5-Methylthiophene-3-sulfonamide (CAS 1017264-52-6)
- 3-Methylthiophene-2-sulfonamide (CAS 81417-51-8)
- 5-Methylthiophene-2-sulfonamide (CAS 53595-69-0)
- N-methylthiophene-2-sulfonamide (CAS 53442-30-1)
- 4-ethyl-5-methylthiophene-3-carboxylic acid (CAS 884497-34-1)
- 5-ethyl-4-methylthiophene-2-carboxylic acid (CAS 40808-25-1)
- 4-Ethyl-5-methylthiophene-3-carbohydrazide (CAS 438225-41-3)
- 5-ethyl-4-methylthiophene-2-carbohydrazide (CAS 851169-15-8)
Recommended Standards
- 6-cyclohexylpyrimidin-4-ol (CAS 1159818-32-2)
- 2-aMino-N,N-diMethyl-2-phenylacetaMide (CAS 1161012-23-2)
- 4-(Tetrahydro-2H-pyran-4-yl)pyridin-2-amine (CAS 1159818-13-9)
- 4-Methyl-N-nitropyridin-2-amine (CAS 33245-30-6)
- 4,6-Dihydroxybenzofuran-3(2H)-one (CAS 3260-49-9)
- Fluorexon (CAS 1461-15-0)
- Sec-butyl (2R)-piperidine-2-carboxylate (CAS 1372901-82-0)
- 2-(Tert-butoxymethyl)morpholine (CAS 1342594-72-2)
- 2-(Difluoromethyl)-3-fluoro-4-hydroxypyridine-6-carbonyl chloride (CAS 1807137-05-8)
- Neuropeptide Y (2-36) (human, rat) trifluoroacetate salt (CAS 123139-39-9)
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