5-Chloro-2-phenoxypyridine CAS 28373-51-5
| CAS No. | 28373-51-5 |
| Molecular Formula | C11H8ClNO |
| Molecular Weight | 205.64 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.
5-Chloro-2-phenoxypyridine (CAS 28373-51-5), molecular formula C11H8ClNO and molecular weight 205.64 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C11H8ClNO, 5-Chloro-2-phenoxypyridine contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 205.64 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
As a certified reference material (CRM), 5-Chloro-2-phenoxypyridine 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 | C11H8ClNO |
| Molecular Weight | 205.64 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1965 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
Related Chloro Standards
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Recommended Standards
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- 5-chloro-1H-pyrazolo[4,3-b]pyridine-3-carboxylic acid (CAS 2060591-07-1)
- 5-Chloro-3-phenylpyridin-2(1H)-one (CAS 24228-17-9)
- 5-Chloro-3-(chloromethyl)-[1,2,4]triazolo[4,3-a]pyridine (CAS 66999-62-0)
- (2S,4R)-1-(tert-Butoxycarbonyl)-4-propoxypyrrolidine-2-carboxylic acid (CAS 146129-07-9)
- Ethyl 3-(1H-indol-2-yl)acrylate (CAS 1000681-20-8)
- (3S)-3-aminobutanoic acid (3S)-3-aminobutyric acid (3S)-3-azanylbutanoic acid 3775-72-2 L-beta-homoalanine (CAS 3775-72-2)
- 4-(chloromethyl)-1,3,5-trimethyl-pyrazole;hydrochloride (CAS 1352127-20-8)
- Methyl 2-(3-hydroxypropyl)oxazole-4-carboxylate (CAS 1355026-81-1)
- (E)-3-(3,6-Dichloro-2-fluorophenyl)acrylic acid (CAS 1807393-04-9)
- (5-((Dimethylamino)methyl)pyridin-3-yl)boronic acid (CAS 1884185-88-9)
- 2-Chloro-4-(chloromethyl)-6-methoxypyridine hydrochloride (CAS 193001-92-2)
- Insulin Degludec Impurity 3 (CAS CATO-C4X-21573)
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