2,3-Dichloro-5-ethoxypyridine CAS 1345471-27-3
| CAS No. | 1345471-27-3 |
| Molecular Formula | C7H7Cl2NO |
| Molecular Weight | 192.04 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 192.04 g/mol gives 2,3-Dichloro-5-ethoxypyridine distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
2,3-Dichloro-5-ethoxypyridine (CAS 1345471-27-3) is a high-purity analytical reference standard with the molecular formula C7H7Cl2NO and a molecular weight of 192.04 g/mol.
The molecular framework of 2,3-Dichloro-5-ethoxypyridine (C7H7Cl2NO) is characterized by an amide group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 | C7H7Cl2NO |
| Molecular Weight | 192.04 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.) | 1991 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
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Recommended Standards
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- 1,1'-Bis(2-boronobenzyl)-[4,4'-bipyridine]-1,1'-diium bromide (CAS 420816-02-0)
- (1s,2s)-2-{[4-(propan-2-yl)phenyl]sulfanyl}cyclohexan-1-ol (CAS 651317-92-9)
- 1-(2-(Difluoromethyl)phenyl)ethanol (CAS 1783382-76-2)
- 5-Chloro-2-(pent-4-yn-1-yl)pyrimidine (CAS 126215-85-8)
- 2-(4-Cyano-3-hydroxy-5-methylphenyl)acetic acid (CAS 1806267-04-8)
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