3-Bromo-2-chloro-5-methylbenzenesulfonyl chloride CAS 1263376-78-8
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 1263376-78-8 |
| Molecular Formula | C7H5BrCl2O2S |
| Molecular Weight | 303.99 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 3-Bromo-2-chloro-5-methylbenzenesulfonyl chloride (CAS 1263376-78-8), a pharmaceutical standards reference standard manufactured under ISO 17034 accreditation. Molecular formula: C7H5BrCl2O2S. Molecular weight: 303.99 g/mol. Batch-specific COA and technical support are available on request.
Physical & Chemical Properties
| Molecular Formula | C7H5BrCl2O2S |
| Molecular Weight | 303.99 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature |
| 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) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
| Halogen Content | Cl/Br-containing |
| Sulfur Atoms | 1 |
Related Bromo Standards
- 4-Bromo-3-chloro-2-methylbenzenesulfonyl chloride (CAS 1208075-53-9)
- 4-Bromo-2-chloro-6-methylbenzenesulfonyl chloride (CAS 1208076-76-9)
- 4-Bromo-5-chloro-2-methylbenzene-1-sulfonyl chloride (CAS 1208076-84-9)
- 4-Bromo-2-chloro-5-methylbenzenesulfonyl chloride (CAS 1246776-80-6)
- 4-Bromo-3-chloro-5-methylbenzenesulfonyl chloride (CAS 1349715-49-6)
- 5-bromo-4-chloro-2-methylbenzene-1-sulfonyl chloride (CAS 1416349-30-8)
- 1-Bromo-5-fluoro-4-nitro-2-(trifluoromethoxy)benzene (CAS 1417568-44-5)
- (2-Bromo-4-chlorophenyl)methanesulfonyl Chloride (CAS 1427379-23-4)
Recommended Standards
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- 5-(3,4-Dihydro-2H-pyrrol-5-yl)-6-methylpyridin-2-amine (CAS 1352486-55-5)
- 2-Chloro-5-(trifluoromethyl)-3H-imidazo[4,5-b]pyridine (CAS 114087-69-3)
- n-(3-Iodophenyl)-2,5-dimethylbenzamide (CAS 852037-91-3)
- Semaglutide Impurity 15 (CAS CATO-C4X-222615)
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