4-Bromo-2-chloro-6-methylbenzenesulfonyl chloride CAS 1208076-76-9
| CAS No. | 1208076-76-9 |
| Molecular Formula | C7H5BrCl2O2S |
| Molecular Weight | 303.99 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 4-Bromo-2-chloro-6-methylbenzenesulfonyl chloride.
4-Bromo-2-chloro-6-methylbenzenesulfonyl chloride (CAS 1208076-76-9), molecular formula C7H5BrCl2O2S and molecular weight 303.99 g/mol, is a CATO reference standard with documented purity and traceability.
4-Bromo-2-chloro-6-methylbenzenesulfonyl chloride (C7H5BrCl2O2S) contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine/bromine substitution, an aromatic ring system. Halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 4-Bromo-2-chloro-6-methylbenzenesulfonyl chloride meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
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-5-chloro-2-methylbenzene-1-sulfonyl chloride (CAS 1208076-84-9)
- 4-Bromo-2-chloro-5-methylbenzenesulfonyl chloride (CAS 1246776-80-6)
- 3-Bromo-2-chloro-5-methylbenzenesulfonyl chloride (CAS 1263376-78-8)
- 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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