2-Chloro-3-(difluoromethyl)-6-iodo-5-methylpyridine CAS 1805269-75-3
| CAS No. | 1805269-75-3 |
| Molecular Formula | C7H5ClF2IN |
| Molecular Weight | 303.48 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 2-Chloro-3-(difluoromethyl)-6-iodo-5-methylpyridine is closely related to a nitrile group, fluorine/chlorine/iodine substitution, an aromatic ring system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
2-Chloro-3-(difluoromethyl)-6-iodo-5-methylpyridine (CAS 1805269-75-3), molecular formula C7H5ClF2IN and molecular weight 303.48 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 2-Chloro-3-(difluoromethyl)-6-iodo-5-methylpyridine (C7H5ClF2IN) contains a nitrile group, fluorine/chlorine/iodine substitution, an aromatic ring system. 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 303.48 g/mol, it falls into the moderately-high-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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 | C7H5ClF2IN |
| Molecular Weight | 303.48 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 |
| 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/Cl/I-containing |
| Nitrogen Atoms | 1 |
Related Chloro Standards
- 2-Chloro-6-(difluoromethyl)-3-iodo-5-methylpyridine (CAS 1804455-79-5)
- 4-Chloro-2-(difluoromethyl)-3-iodo-6-methylpyridine (CAS 1804455-89-7)
- 2-Chloro-3-(difluoromethyl)-6-iodo-4-methylpyridine (CAS 1804674-28-9)
- 4-Chloro-6-(difluoromethyl)-3-iodo-2-methylpyridine (CAS 1805061-61-3)
- 2-Chloro-5-(difluoromethyl)-4-iodo-3-methylpyridine (CAS 1805172-77-3)
- 4-Chloro-3-(difluoromethyl)-5-iodo-2-methylpyridine (CAS 1805172-90-0)
- 2-Chloro-3-(difluoromethyl)-5-iodo-4-methylpyridine (CAS 1805385-02-7)
- 4-Chloro-2-(difluoromethyl)-3-iodo-5-methylpyridine (CAS 1806004-71-6)
Recommended Standards
- 2-(Chloromethyl)-3-(difluoromethyl)-6-iodopyridine (CAS 1805314-77-5)
- 4-(Chloromethyl)-3-(difluoromethyl)-2-iodopyridine (CAS 1805314-96-8)
- 2-(Chloromethyl)-4-(difluoromethyl)-5-iodopyridine (CAS 1805318-32-4)
- 2-(Chloromethyl)-5-(difluoromethyl)-4-iodopyridine (CAS 1805332-85-7)
- (1-Methylcyclopropyl)boronic acid (CAS 1863113-71-6)
- (S)-2-Aminopropanenitrile (CAS 95596-57-9)
- 6-(tert-Butylthio)-2-methyl-3-vinylpyridine (CAS 1355194-54-5)
- Methyl 3-amino-5-methoxypyrazine-2-carboxylate (CAS 1130-99-0)
- 2-(4-nonyl(1,2,3,4,5,6-13C6)cyclohexa-1,3,5-trien-1-yl)oxyethanol (CAS 1346600-52-9)
- 1-[Chloro(phenyl)methyl]-2-(trifluoromethyl)benzene (CAS 881040-67-1)
- 4-(2-(Benzylthio)thieno[3,2-d]pyrimidin-4-yl)morpholine (CAS 478067-42-4)
- tert-Butyl (5-bromo-2-methoxypyridin-3-yl)carbamate (CAS 1823495-02-8)
- (R)-2-(2-Bromophenyl)-4-phenyl-4,5-dihydrooxazole (CAS 191330-82-2)
- Semaglutide impurity 266 (CAS CATO-C4X-2226266)
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