4-Bromothiophene-2-sulfonyl chloride CAS 185329-76-4
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 185329-76-4 |
| Molecular Formula | C4H2BrClO2S2 |
| Molecular Weight | 261.54 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4-Bromothiophene-2-sulfonyl chloride (CAS 185329-76-4) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C4H2BrClO2S2. Molecular weight: 261.54 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C4H2BrClO2S2 |
| Molecular Weight | 261.54 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.) | 2009 |
| Halogen Content | Cl/Br-containing |
| Sulfur Atoms | 2 |
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Recommended Standards
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- 2-(4-Bromophenyl)-3-thioxohexahydroimidazo[1,5-a]pyridin-1(5H)-one (CAS 60725-98-6)
- Azilsartan Impurity N1 (CAS 1234834-29-7)
- 3-Bromo-1-(tetrahydro-2H-pyran-4-yl)-4,5,6,7-tetrahydro-1H-pyrazolo[4,3-c]pyridine (CAS 1781367-57-4)
- Semaglutide Impurity 145 (CAS CATO-C4X-2226145)
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