5-Bromo-2-chloro-n-methylpyridine-3-sulfonamide CAS 1248203-34-0
| CAS No. | 1248203-34-0 |
| Molecular Formula | C6H6BrClN2O2S |
| Molecular Weight | 285.55 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 5-Bromo-2-chloro-n-methylpyridine-3-sulfonamide is closely related to an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine/bromine substitution, an aromatic ring system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
5-Bromo-2-chloro-n-methylpyridine-3-sulfonamide (CAS 1248203-34-0) is a high-purity analytical reference standard with the molecular formula C6H6BrClN2O2S and a molecular weight of 285.55 g/mol.
Owing to an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine/bromine substitution, an aromatic ring system, 5-Bromo-2-chloro-n-methylpyridine-3-sulfonamide is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 285.55 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
As a certified reference material (CRM), 5-Bromo-2-chloro-n-methylpyridine-3-sulfonamide 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 | C6H6BrClN2O2S |
| Molecular Weight | 285.55 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| 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) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
| Halogen Content | Cl/Br-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Bromo Standards
- N-(4-Bromo-3-chlorophenyl)aminosulfonamide (CAS 1701629-91-5)
- 6-Bromo-2-chloro-N-methylpyridine-3-sulfonamide (CAS 1707609-38-8)
- 5-Bromo-4-chloro-6-methyl-2-(methylsulfonyl)pyrimidine (CAS 98141-98-1)
- 5-Bromo-6-chloro-N-methylpyridine-3-sulfonamide (CAS 622814-92-0)
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Recommended Standards
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- Fmoc-Cys(StBu)-OH (CAS 73724-43-3)
- D-[Asp]9-Semaglutide (CAS CATO-CPTD788631)
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