2-Bromo-5-chloro-4-fluorobenzenesulfonamide CAS 1019018-92-8
| CAS No. | 1019018-92-8 |
| Molecular Formula | C6H4BrClFNO2S |
| Molecular Weight | 288.52 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
2-Bromo-5-chloro-4-fluorobenzenesulfonamide (CAS 1019018-92-8), molecular formula C6H4BrClFNO2S and molecular weight 288.52 g/mol, is a CATO reference standard with documented purity and traceability.
2-Bromo-5-chloro-4-fluorobenzenesulfonamide (C6H4BrClFNO2S) contains an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine/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. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C6H4BrClFNO2S |
| Molecular Weight | 288.52 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; 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.) | 1988 |
| Halogen Content | F/Cl/Br-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Bromo Standards
- 4-Bromo-3-chloro-2-fluorobenzenesulfonamide (CAS 1204572-81-5)
- 2-Bromo-4-chloro-6-fluorobenzenesulfonamide (CAS 1204573-10-3)
- 2-Bromo-6-chloro-4-fluorobenzenesulfonamide (CAS 1208075-45-9)
- 4-Bromo-2-chloro-5-fluorobenzenesulfonamide (CAS 1208075-72-2)
- 4-Bromo-2-chloro-6-fluorobenzenesulfonamide (CAS 1208077-30-8)
- 4-Bromo-5-chloro-2-fluorobenzenesulfonamide (CAS 1208077-35-3)
- 2-Bromo-4-chloro-5-fluorobenzenesulfonamide (CAS 874801-48-6)
- 4-Bromo-2-chloro-3-fluorobenzenesulfonamide (CAS 2385590-27-0)
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Why CATO?
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