5-Bromo-2-oxo-2,3-dihydrobenzo[d]oxazole-6-sulfonyl chloride CAS 343779-10-2
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 343779-10-2 |
| Molecular Formula | C7H3BrClNO4S |
| Molecular Weight | 312.53 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 5-Bromo-2-oxo-2,3-dihydrobenzo[d]oxazole-6-sulfonyl chloride (CAS 343779-10-2), a pharmaceutical standards reference standard manufactured under ISO 17034 accreditation. Molecular formula: C7H3BrClNO4S. Molecular weight: 312.53 g/mol. Batch-specific COA and technical support are available on request.
Physical & Chemical Properties
| Molecular Formula | C7H3BrClNO4S |
| Molecular Weight | 312.53 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Cl/Br-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
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Recommended Standards
- 5-[(2-Butyloctyl)thio]-2-thiophenecarboxaldehyde (CAS 2316816-64-3)
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- 4-(2-Morpholinoethyl)thiazol-2-amine (CAS 376636-15-6)
- 4-(Pyridine-2-amido)benzoic acid (CAS 5693-36-7)
- 2-(tert-Butyl)-4-chloro-6-fluorobenzo[d]oxazol-7-amine (CAS 650598-18-8)
- 2-Amino-1-(3-chloro-4-methylphenyl)-4,5-dimethyl-1H-pyrrole-3-carbonitrile (CAS 1094407-05-2)
- Tirzepatide Impurity 11 TFA salt (CAS CATO-C4X-324011)
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