3-Chloro-2,5-dihydrothiophene 1,1-dioxide CAS 7311-87-7
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 7311-87-7 |
| Molecular Formula | C4H5ClO2S |
| Molecular Weight | 152.60 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
3-Chloro-2,5-dihydrothiophene 1,1-dioxide (CAS 7311-87-7) is a high-purity pharmaceutical standards reference standard from CATO, an ISO 17034 accredited reference material producer. Molecular formula: C4H5ClO2S. Molecular weight: 152.60 g/mol. Each batch is supplied with a Certificate of Analysis (COA).
Physical & Chemical Properties
| Molecular Formula | C4H5ClO2S |
| Molecular Weight | 152.60 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 2.0 |
| CAS Registry Year (est.) | 1959 |
| Halogen Content | Cl-containing |
| Sulfur Atoms | 1 |
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Recommended Standards
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- (1,2-dimethylpyrrolidin-3-yl)methanamine dihydrochloride (CAS 1955494-57-1)
- Methyl 2-[4-(1H-tetrazol-1-yl)phenoxy]propanoate (CAS 1706435-73-5)
- 1-Phenyl-3-[(pyridin-3-yl)methyl]thiourea (CAS 201215-93-2)
- Azilsartan Impurity 46 (CAS 1696392-12-7)
- 2-Ethoxy-4-methoxybenzaldehyde (CAS 42924-37-8)
- Semaglutide Impurity 152 xTFA (CAS CATO-C4X-2226152)
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