(E)-4-(4-ethoxyphenyl)-4-oxo-N-(4-(trifluoromethoxy)phenyl)but-2-enamide CAS 331461-86-0
| CAS No. | 331461-86-0 |
| Molecular Formula | C19H16F3NO4 |
| Molecular Weight | 379.33 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
(E)-4-(4-ethoxyphenyl)-4-oxo-N-(4-(trifluoromethoxy)phenyl)but-2-enamide (CAS 331461-86-0), molecular formula C19H16F3NO4 and molecular weight 379.33 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, (E)-4-(4-ethoxyphenyl)-4-oxo-N-(4-(trifluoromethoxy)phenyl)but-2-enamide (C19H16F3NO4) contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage, fluorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 11.0, corresponding to approximately 11 ring(s) or double-bond equivalent(s). With a molecular weight of 379.33 g/mol, it falls into the moderately-high-molecular-weight range. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
As a certified reference material (CRM), (E)-4-(4-ethoxyphenyl)-4-oxo-N-(4-(trifluoromethoxy)phenyl)but-2-enamide 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 | C19H16F3NO4 |
| Molecular Weight | 379.33 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, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| 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-containing |
| Nitrogen Atoms | 1 |
Related E Standards
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- 2-((4-Ethoxyphenyl)amino)-2-oxoethyl 5-bromonicotinate (CAS 729564-97-0)
- 3-(4-Ethoxyphenyl)-7-phenylhexahydro-1H-pyridazino[1,2-a][1,2,5]triazepine-1,5(2H)-dione (CAS 67744-85-8)
- N-(4-Ethoxyphenyl)-3-(5-(3-nitrophenyl)furan-2-yl)acrylamide (CAS 853351-29-8)
- 3,6-Bis(4-ethoxyphenyl)furo[3,2-b]furan-2,5-dione (CAS 55506-38-2)
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Recommended Standards
- 3-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-4,4,4-trifluorobutanoic acid (CAS 194471-86-8)
- (R)-Fmoc-2-amino-4,4,4-trifluoro-butyric acid (CAS 2044711-52-4)
- Fmoc-R-(Me)Ala(3-F3)-OH (CAS 1932361-33-5)
- {[2-(trifluoromethyl)phenyl]carbamoyl}methyl (2e)-3-(3-methoxyphenyl)prop-2-enoate (CAS 728927-30-8)
- 3-Bromo-4-(4-methylphenyl)-4-oxobutanoic acid (CAS 53515-23-4)
- N-(5-aminopyridin-2-yl)methanesulfonamide (CAS 170793-51-8)
- Methyl 4-Bromobutyrate (CAS 4897-84-1)
- 2,5-Dimethyl-1-phenyl-1H-imidazole-4-carboxylic acid (CAS 906804-17-9)
- Ethyl (2-(diethylamino)ethyl)glycinate (CAS 7568-71-0)
- 9-(Trimethylsilyl)-6-((trimethylsilyl)thio)-9H-purine (CAS 132151-80-5)
- 4-{4-[(tert-butoxy)carbonyl]piperazin-2-yl}benzoic acid (CAS 1361112-26-6)
- 1-(4-Bromophenyl)-2-(pyridin-4-yl)ethanone (CAS 100397-96-4)
- 2-(3-Formyl-1H-indol-1-yl)-N-(4-phenoxyphenyl)acetamide (CAS 831206-96-3)
- Peptide YY (3-36) (human) (CAS 123583-37-9)
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