2,5-Dibromo-4-chloropyridine CAS 1033203-47-2
| CAS No. | 1033203-47-2 |
| Molecular Formula | C5H2Br2ClN |
| Molecular Weight | 271.34 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 2,5-Dibromo-4-chloropyridine is closely related to a nitrile group, chlorine/bromine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
2,5-Dibromo-4-chloropyridine (CAS 1033203-47-2) is a high-purity analytical reference standard with the molecular formula C5H2Br2ClN and a molecular weight of 271.34 g/mol.
Based on its molecular formula C5H2Br2ClN, 2,5-Dibromo-4-chloropyridine contains a nitrile group, chlorine/bromine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 271.34 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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), 2,5-Dibromo-4-chloropyridine 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 | C5H2Br2ClN |
| Molecular Weight | 271.34 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1988 |
| Halogen Content | Cl/Br-containing |
| Nitrogen Atoms | 1 |
Related Dibromo Standards
- 2,6-Dibromo-4-chloropyridine (CAS 1196156-59-8)
- 2,4-Dibromo-6-chloropyridine (CAS 1206249-48-0)
- 3,4-Dibromo-5-chloropyridine (CAS 1335051-91-6)
- 3,4-Dibromo-2-chloropyridine (CAS 134039-99-9)
- 3,5-Dibromo-4-chloropyridine (CAS 13626-17-0)
- 2,3-Dibromo-5-chloropyridine (CAS 137628-17-2)
- 2,3-Dibromo-4-chloropyridine (CAS 1379300-99-8)
- 2,5-Dibromo-3-chloropyridine (CAS 160599-70-2)
Recommended Standards
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- Insulin Glargine Metabolite M2 (CAS CATO-CPTD788867)
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