N-[(E)-2-[3-Chloro-5-(trifluoromethyl)pyridin-2-yl]ethenyl]-2-phenoxyaniline CAS 303997-74-2
| CAS No. | 303997-74-2 |
| Molecular Formula | C20H14ClF3N2O |
| Molecular Weight | 390.79 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.
CATO supplies N-[(E)-2-[3-Chloro-5-(trifluoromethyl)pyridin-2-yl]ethenyl]-2-phenoxyaniline (CAS 303997-74-2), a certified reference material (molecular formula C20H14ClF3N2O, MW 390.79 g/mol) for analytical method development and quality control.
Structurally, N-[(E)-2-[3-Chloro-5-(trifluoromethyl)pyridin-2-yl]ethenyl]-2-phenoxyaniline (C20H14ClF3N2O) contains a steroid core, an amide group, a hydroxyl group, an ether linkage, fluorine/chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 13.0, corresponding to approximately 13 ring(s) or double-bond equivalent(s). With a molecular weight of 390.79 g/mol, it falls into the moderately-high-molecular-weight range. 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 | C20H14ClF3N2O |
| Molecular Weight | 390.79 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 DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | F/Cl-containing |
| Nitrogen Atoms | 2 |
Recommended Standards
- 5-Chloro-2-((2,4-difluorophenyl)carbamoyl)phenyl dimethylsulfamate (CAS 400080-33-3)
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- Peptide Impurity 13 (CAS CATO-CPTD788813)
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