3-Bromo-5-methylthiophene-2-sulfonyl chloride CAS 319002-81-8
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 319002-81-8 |
| Molecular Formula | C5H4BrClO2S2 |
| Molecular Weight | 275.57 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 3-Bromo-5-methylthiophene-2-sulfonyl chloride (CAS 319002-81-8), a pharmaceutical standards reference standard manufactured under ISO 17034 accreditation. Molecular formula: C5H4BrClO2S2. Molecular weight: 275.57 g/mol. Batch-specific COA and technical support are available on request.
Physical & Chemical Properties
| Molecular Formula | C5H4BrClO2S2 |
| Molecular Weight | 275.57 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.) | 2025 |
| Halogen Content | Cl/Br-containing |
| Sulfur Atoms | 2 |
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- 2-(4-Chloro-2-nitrophenyl)acetonitrile (CAS 87081-90-1)
- 1-(6-methylpyridin-3-yl)ethan-1-ol (CAS 100189-16-0)
- Des-Ile27-Tirzepatide (CAS CATO-CPTD788946)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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- Technical support: +86 13829788188 / jacky.chen@cato-chem.com