5-Bromo-2-ethoxy-benzenesulfonyl chloride CAS 379255-01-3
| CAS No. | 379255-01-3 |
| Molecular Formula | C8H8BrClO3S |
| Molecular Weight | 299.57 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
5-Bromo-2-ethoxy-benzenesulfonyl chloride (C8H8BrClO3S) contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine/bromine substitution, an aromatic ring system. It is notably hygroscopic, 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 aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
5-Bromo-2-ethoxy-benzenesulfonyl chloride (CAS 379255-01-3), molecular formula C8H8BrClO3S and molecular weight 299.57 g/mol, is a CATO reference standard with documented purity and traceability.
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), 5-Bromo-2-ethoxy-benzenesulfonyl 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 | C8H8BrClO3S |
| Molecular Weight | 299.57 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening; 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.) | 2025 |
| Halogen Content | Cl/Br-containing |
| Sulfur Atoms | 1 |
Related Bromo Standards
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Recommended Standards
- 2-(3-Bromo-5-chloro-benzenesulfonyl)-ethanol (CAS 1824268-31-6)
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- 4-Amino-4-(aminomethyl)-N,N-dimethyltetrahydropyran (CAS 176445-80-0)
- N-(5-Benzoyl-4-phenylthiazol-2-yl)-2,6-difluorobenzamide (CAS 325988-70-3)
- Semaglutide impurity 95 (CAS CATO-C4X-222695)
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