2-Bromo-5-(difluoromethyl)-3-fluoro-4-methylpyridine CAS 1806903-33-2
| CAS No. | 1806903-33-2 |
| Molecular Formula | C7H5BrF3N |
| Molecular Weight | 240.02 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
2-Bromo-5-(difluoromethyl)-3-fluoro-4-methylpyridine (CAS 1806903-33-2), molecular formula C7H5BrF3N and molecular weight 240.02 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C7H5BrF3N, 2-Bromo-5-(difluoromethyl)-3-fluoro-4-methylpyridine contains a nitrile group, fluorine/bromine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 240.02 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).
As a certified reference material (CRM), 2-Bromo-5-(difluoromethyl)-3-fluoro-4-methylpyridine 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 | C7H5BrF3N |
| Molecular Weight | 240.02 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 |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1995 |
| Halogen Content | F/Br-containing |
| Nitrogen Atoms | 1 |
Related Bromo Standards
- 5-Bromo-4-methyl-2-(trifluoromethyl)pyridine (CAS 1010422-51-1)
- 5-Bromo-3-methyl-2-(trifluoromethyl)pyridine (CAS 1010422-52-2)
- 3-Bromo-2-methyl-6-(trifluoromethyl)pyridine (CAS 1010422-53-3)
- 3-Bromo-6-methyl-2-(trifluoromethyl)pyridine (CAS 1211517-98-4)
- 3-Bromo-4-methyl-5-(trifluoromethyl)pyridine (CAS 1211518-50-1)
- 2-bromo-3-methyl-5-(trifluoromethyl)pyridine (CAS 1211520-05-6)
- 2-Bromo-3-methyl-6-(trifluoromethyl)pyridine (CAS 1211525-93-7)
- 5-Bromo-2-methyl-3-(trifluoromethyl)pyridine (CAS 1211526-51-0)
Recommended Standards
- 2-Bromo-3-(difluoromethyl)-6-fluoro-4-methylpyridine (CAS 1806903-32-1)
- 4-Bromo-6-(difluoromethyl)-2-fluoro-3-methylpyridine (CAS 1806907-27-6)
- 4-Bromo-2-(difluoromethyl)-5-fluoro-3-methylpyridine (CAS 1806829-28-6)
- 4-Bromo-3-(difluoromethyl)-6-fluoro-2-methylpyridine (CAS 1806992-92-6)
- 2-(3-Nitropyridin-4-yl)acetonitrile (CAS 1343131-02-1)
- Diltiazem D6 (CAS 1242184-41-3)
- 5-(3-Formylphenyl)nicotinic acid (CAS 566198-34-3)
- (((2R,3S,4R,5R)-5-(6-Amino-9H-purin-9-yl)-4-(5-(dimethylamino)naphthalene-1-sulfonamido)-3-hydroxytetrahydrofuran-2-yl)methyl)triphosphoric acid (CAS 80214-45-5)
- 2-Bromo-1-(2-(dimethylamino)-1H-imidazol-4-yl)ethanone (CAS 88723-62-0)
- 1-(4-fluorobenzoyl)piperidin-4-amine,HCL (CAS 739339-41-4)
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- Methyl L-phenylalanyl-L-phenylalaninate (CAS 13082-29-6)
- Polymyxin B nonapeptide TFA (CAS 2220175-42-6)
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