(E)-1-(4-bromophenyl)-3-(methyl((3-(trifluoromethyl)benzoyl)oxy)amino)prop-2-en-1-one CAS 303151-53-3
| CAS No. | 303151-53-3 |
| Molecular Formula | C18H13BrF3NO3 |
| Molecular Weight | 428.20 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
(E)-1-(4-bromophenyl)-3-(methyl((3-(trifluoromethyl)benzoyl)oxy)amino)prop-2-en-1-one (CAS 303151-53-3), molecular formula C18H13BrF3NO3 and molecular weight 428.20 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C18H13BrF3NO3, (E)-1-(4-bromophenyl)-3-(methyl((3-(trifluoromethyl)benzoyl)oxy)amino)prop-2-en-1-one contains a steroid core, an amide group, a hydroxyl group, an ether linkage, fluorine/bromine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 428.20 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.
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 | C18H13BrF3NO3 |
| Molecular Weight | 428.20 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) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | F/Br-containing |
| Nitrogen Atoms | 1 |
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Recommended Standards
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