2-Chloro-3-(difluoromethyl)-6-fluoro-5-methoxypyridine CAS 1805982-83-5
| CAS No. | 1805982-83-5 |
| Molecular Formula | C7H5ClF3NO |
| Molecular Weight | 211.57 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 211.57 g/mol gives 2-Chloro-3-(difluoromethyl)-6-fluoro-5-methoxypyridine distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies 2-Chloro-3-(difluoromethyl)-6-fluoro-5-methoxypyridine (CAS 1805982-83-5), a certified reference material (molecular formula C7H5ClF3NO, MW 211.57 g/mol) for analytical method development and quality control.
Based on its molecular formula C7H5ClF3NO, 2-Chloro-3-(difluoromethyl)-6-fluoro-5-methoxypyridine contains an amide group, a hydroxyl group, an ether linkage, fluorine/chlorine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 211.57 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.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C7H5ClF3NO |
| Molecular Weight | 211.57 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, water (slightly soluble) |
| 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/Cl-containing |
| Nitrogen Atoms | 1 |
Related Chloro Standards
- 6-Chloro-N-methyl-2-(trifluoromethyl)pyrimidin-4-amine (CAS 1023813-53-7)
- (3-Chloro-5-(trifluoromethyl)pyridin-2-yl)methanol (CAS 1033463-31-8)
- (6-Chloro-5-(trifluoromethyl)pyridin-3-yl)methanol (CAS 1113049-91-4)
- 6-Chloro-5-(trifluoromethyl)pyridine-2,3-diamine (CAS 114087-45-5)
- 2-Chloro-6-methoxy-4-(trifluoromethyl)pyridine (CAS 1160994-99-9)
- 2-Chloro-4-methoxy-3-(trifluoromethyl)pyridine (CAS 1163693-02-4)
- (2-Chloro-6-trifluoromethyl-pyridin-4-yl)-methanol (CAS 1196157-41-1)
- 2-Chloro-4-methoxy-6-(trifluoromethyl)pyridine (CAS 1211539-69-3)
Recommended Standards
- (2-Chloro-5-(difluoromethyl)-6-fluoropyridin-3-yl)methanol (CAS 1805980-18-0)
- 2-Chloro-5-(difluoromethyl)-3-fluoro-6-methoxypyridine (CAS 1805982-94-8)
- (2-Chloro-5-(difluoromethyl)-3-fluoropyridin-4-yl)methanol (CAS 1805980-07-7)
- 4-Chloro-3-(difluoromethyl)-2-fluoro-6-methoxypyridine (CAS 1805983-14-5)
- (2R,3S)-4-benzyl-2-methylmorpholine-3-carboxylic acid (CAS 1932181-24-2)
- 4,5-Dibromo-N-[(pyridin-4-yl)methyl]-1H-pyrrole-2-carboxamide (CAS 861208-06-2)
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