N-[(2E)-2-[(4-Chlorophenyl)methylidene]-5,6-dimethoxy-3-oxo-2,3-dihydro-1H-inden-1-yl]-2,2,2-trifluoroacetamide CAS 691884-03-4
| CAS No. | 691884-03-4 |
| Molecular Formula | C20H15ClF3NO4 |
| Molecular Weight | 425.79 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
N-[(2E)-2-[(4-Chlorophenyl)methylidene]-5,6-dimethoxy-3-oxo-2,3-dihydro-1H-inden-1-yl]-2,2,2-trifluoroacetamide (CAS 691884-03-4), molecular formula C20H15ClF3NO4 and molecular weight 425.79 g/mol, is a CATO reference standard with documented purity and traceability.
N-[(2E)-2-[(4-Chlorophenyl)methylidene]-5,6-dimethoxy-3-oxo-2,3-dihydro-1H-inden-1-yl]-2,2,2-trifluoroacetamide (C20H15ClF3NO4) contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage, fluorine/chlorine substitution. Halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C20H15ClF3NO4 |
| Molecular Weight | 425.79 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 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) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1985 |
| Halogen Content | F/Cl-containing |
| Nitrogen Atoms | 1 |
Recommended Standards
- 3-Chloro-2-{[7-(4-fluorophenyl)-[1,2,4]triazolo[1,5-a]pyrimidin-2-yl]sulfanyl}-5-(trifluoromethyl)pyridine (CAS 338775-07-8)
- 3-(Benzenesulfonyl)-2-(4-chlorobenzoyl)-5-(trifluoromethyl)pyridine (CAS 338960-06-8)
- 2-(4-Chloro-2-methylphenoxy)-1-(1-(4-(trifluoromethoxy)phenyl)-1H-1,2,3-triazol-4-yl)propan-1-one (CAS 478248-71-4)
- 3-[3-Chloro-5-(trifluoromethyl)pyridin-2-yl]-1-[(1E)-{[2-(morpholin-4-yl)-2-oxoethoxy]amino}methylidene]thiourea (CAS 477885-61-3)
- N1-(2,3-dichlorobenzyl)-N1-isopropylethane-1,2-diamine (CAS 1353978-15-0)
- 4-[(4-ethoxyphenoxy)methyl]benzoic acid (CAS 438464-97-2)
- 5-Acetamido-2,4-dimethylbenzene-1-sulfonyl fluoride (CAS 33866-09-0)
- 5,6-Dichloro-1H-indazol-4-ol (CAS 2565712-86-7)
- 1-(3-Fluoro-4-(trifluoromethoxy)phenyl)butan-1-ol (CAS 1443310-88-0)
- Ticagrelor impurity 159 (CAS 1511636-19-3)
- 2-(1H-benzo[d]imidazol-1-yl)-N-ethylethan-1-amine (CAS 31488-75-2)
- 8-Bromo-1,4-dihydro-2,7-naphthyridin-3(2H)-one (CAS 1393534-27-4)
- 3-Chloro-6-fluoro-2-methylimidazo[1,2-a]pyridine (CAS 1934817-54-5)
- Neuroendocrine Regulatory Peptide-1 (rat) (CAS 954420-51-0)
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