2,6-Dibromo-3,5-difluoropyridine CAS 210169-13-4
| CAS No. | 210169-13-4 |
| Molecular Formula | C5HBr2F2N |
| Molecular Weight | 272.87 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
2,6-Dibromo-3,5-difluoropyridine (CAS 210169-13-4) is a high-purity analytical reference standard with the molecular formula C5HBr2F2N and a molecular weight of 272.87 g/mol.
Structurally, 2,6-Dibromo-3,5-difluoropyridine (C5HBr2F2N) contains a nitrile group, fluorine/bromine substitution. The molecule exhibits a degree of unsaturation (DBE) of 4.0, corresponding to approximately 4 ring(s) or double-bond equivalent(s). With a molecular weight of 272.87 g/mol, it falls into the medium-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
As a certified reference material (CRM), 2,6-Dibromo-3,5-difluoropyridine 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 | C5HBr2F2N |
| Molecular Weight | 272.87 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.) | 2017 |
| Halogen Content | F/Br-containing |
| Nitrogen Atoms | 1 |
Related Dibromo Standards
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- 4,5-dibromo-2-isopropyl-triazole (CAS 2230672-46-3)
- 3,5-Dibromo-2-chloropyrazine (CAS 1082843-70-6)
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- 4,6-Dibromo-5-chloropyrimidine (CAS 2229563-91-9)
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