3-Bromopyridine-2-sulfonyl chloride CAS 1209950-34-4
| CAS No. | 1209950-34-4 |
| Molecular Formula | C5H3BrClNO2S |
| Molecular Weight | 256.50 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
3-Bromopyridine-2-sulfonyl chloride (C5H3BrClNO2S) contains an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine/bromine substitution. 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).
3-Bromopyridine-2-sulfonyl chloride (CAS 1209950-34-4), molecular formula C5H3BrClNO2S and molecular weight 256.50 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), 3-Bromopyridine-2-sulfonyl 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 | C5H3BrClNO2S |
| Molecular Weight | 256.50 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 |
| CAS Registry Year (est.) | 1990 |
| Halogen Content | Cl/Br-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Bromopyridine Standards
- 4-Bromopyridine-3-sulfonyl chloride (CAS 1060808-89-0)
- 2-Bromopyridine-3-sulfonyl chloride (CAS 1060811-59-7)
- 2-Bromopyridine-4-sulfonyl chloride (CAS 1060811-61-1)
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- 5-Bromopyridine-3-sulfonyl chloride (CAS 65001-21-0)
- 4-bromopyridine-2-sulfonyl chloride (CAS 1060808-87-8)
- 3-bromopyridine-4-sulfonyl chloride (CAS 886371-33-1)
- 6-bromopyridine-2-sulfonyl chloride (CAS 912934-77-1)
Recommended Standards
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