3-((2-Chloro-6-fluorobenzyl)oxy)-1-(4-fluorobenzyl)-2-methylpyridin-4(1H)-one CAS 303144-63-0
| CAS No. | 303144-63-0 |
| Molecular Formula | C20H16ClF2NO2 |
| Molecular Weight | 375.80 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.
3-((2-Chloro-6-fluorobenzyl)oxy)-1-(4-fluorobenzyl)-2-methylpyridin-4(1H)-one (CAS 303144-63-0) is a high-purity analytical reference standard with the molecular formula C20H16ClF2NO2 and a molecular weight of 375.80 g/mol.
Based on its molecular formula C20H16ClF2NO2, 3-((2-Chloro-6-fluorobenzyl)oxy)-1-(4-fluorobenzyl)-2-methylpyridin-4(1H)-one contains a steroid core, an amide group, a hydroxyl group, an ether linkage, fluorine/chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 375.80 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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 | C20H16ClF2NO2 |
| Molecular Weight | 375.80 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | F/Cl-containing |
| Nitrogen Atoms | 1 |
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