(2E)-3-(4-tert-Butylphenyl)-N-(3-chloro-4-fluorophenyl)prop-2-enamide CAS 256955-12-1
| CAS No. | 256955-12-1 |
| Molecular Formula | C19H19ClFNO |
| Molecular Weight | 331.81 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 331.81 g/mol gives (2E)-3-(4-tert-Butylphenyl)-N-(3-chloro-4-fluorophenyl)prop-2-enamide distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
(2E)-3-(4-tert-Butylphenyl)-N-(3-chloro-4-fluorophenyl)prop-2-enamide (CAS 256955-12-1) is a high-purity analytical reference standard with the molecular formula C19H19ClFNO and a molecular weight of 331.81 g/mol.
(2E)-3-(4-tert-Butylphenyl)-N-(3-chloro-4-fluorophenyl)prop-2-enamide (C19H19ClFNO) contains a steroid core, an amide group, a hydroxyl group, an ether linkage, fluorine/chlorine substitution. Halogen substitution raises its density and boiling point, its high carbon-to-hydrogen ratio confers good lipid solubility; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), (2E)-3-(4-tert-Butylphenyl)-N-(3-chloro-4-fluorophenyl)prop-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 | C19H19ClFNO |
| Molecular Weight | 331.81 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 |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | F/Cl-containing |
| Nitrogen Atoms | 1 |
Recommended Standards
- (2-Chloro-4-fluorophenyl)(4-(piperidin-1-ylmethyl)phenyl)methanone (CAS 898775-44-5)
- (2E)-N-(3-Chloro-4-fluorophenyl)-3-[4-(2-methylpropyl)phenyl]prop-2-enamide (CAS 329777-61-9)
- (2-Chloro-4-fluorophenyl)(3-(piperidin-1-ylmethyl)phenyl)methanone (CAS 898793-42-5)
- (3-Chloro-4-fluorophenyl)(4-(piperidin-1-ylmethyl)phenyl)methanone (CAS 898775-23-0)
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