(3E)-1-{3-[(2-chloro-6-fluorophenyl)methoxy]phenyl}-3-{[(2,4-dichlorophenyl)methoxy]imino}propan-1-one CAS 478039-71-3
| CAS No. | 478039-71-3 |
| Molecular Formula | C23H17Cl3FNO3 |
| Molecular Weight | 480.74 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
(3E)-1-{3-[(2-chloro-6-fluorophenyl)methoxy]phenyl}-3-{[(2,4-dichlorophenyl)methoxy]imino}propan-1-one (CAS 478039-71-3) is a high-purity analytical reference standard with the molecular formula C23H17Cl3FNO3 and a molecular weight of 480.74 g/mol.
Based on its molecular formula C23H17Cl3FNO3, (3E)-1-{3-[(2-chloro-6-fluorophenyl)methoxy]phenyl}-3-{[(2,4-dichlorophenyl)methoxy]imino}propan-1-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 480.74 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.
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.
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 | C23H17Cl3FNO3 |
| Molecular Weight | 480.74 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light, keep sealed and dry |
| 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) | 14.0 |
| 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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- Semaglutide Impurity 4 (CAS CATO-C4X-22264)
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