5-Chlorothiophene-3-sulfonyl chloride CAS 905277-27-2
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 905277-27-2 |
| Molecular Formula | C4H2Cl2O2S2 |
| Molecular Weight | 217.09 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
5-Chlorothiophene-3-sulfonyl chloride (CAS 905277-27-2) is a high-purity pharmaceutical standards reference standard from CATO, an ISO 17034 accredited reference material producer. Molecular formula: C4H2Cl2O2S2. Molecular weight: 217.09 g/mol. Each batch is supplied with a Certificate of Analysis (COA).
Physical & Chemical Properties
| Molecular Formula | C4H2Cl2O2S2 |
| Molecular Weight | 217.09 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1987 |
| Halogen Content | Cl-containing |
| Sulfur Atoms | 2 |
Related Chlorothiophene Standards
- 4-Chlorothiophene-2-sulfonyl chloride (CAS 1016315-26-6)
- 2-Chlorothiophene-3-sulfonyl chloride (CAS 1186049-82-0)
- 3-Chlorothiophene-2-sulfonyl chloride (CAS 633305-21-2)
- 5-Butyl-4-chlorothiophene-2-carboxylic acid (CAS 1399663-45-6)
- 5-Chlorothiophene-2-sulfonyl chloride 5-chlorothiophenesulfonyl chloride 5-chloro-2-thiophenesulfonyl chloride 5-chlorothiophene-2-sulphonyl chloride 5-chlorothiophene-2-sulphonylchloride 5-chlorothiophenesulphonyl chloride 5-chlorothiophen-2-sulfonyl chloride 5-chloro-2-thienylsulfonyl chloride 5-chloro-thiophene-2-sulfonyl chloride 5-chlorothiophene-2-sulfonylchloride 2766-74-7 (CAS 2766-74-7)
- 5-Chlorothiophene-2-sulfonohydrazide (CAS 78380-28-6)
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Recommended Standards
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- 4-(4-Methoxynaphthalen-1-yl)thiazole-2-carbaldehyde (CAS 383142-30-1)
- Tert-butyl 7-(prop-2-yn-1-yl)-2,7-diazaspiro[3.5]Nonane-2-carboxylate (CAS 2434850-33-4)
- tert-Butyl 7-amino-2,3-dihydro-4H-benzo[b][1,4]oxazine-4-carboxylate (CAS 1171126-84-3)
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- Semaglutide impurity 81 (CAS CATO-C4X-222681)
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