1-(2,4-Dichlorobenzyl)-N-(4-methoxyphenyl)-6-oxo-1,6-dihydropyridine-3-carboxamide CAS 242797-38-2
| CAS No. | 242797-38-2 |
| Molecular Formula | C20H16Cl2N2O3 |
| Molecular Weight | 403.26 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 1-(2,4-Dichlorobenzyl)-N-(4-methoxyphenyl)-6-oxo-1,6-dihydropyridine-3-carboxamide is closely related to a steroid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
1-(2,4-Dichlorobenzyl)-N-(4-methoxyphenyl)-6-oxo-1,6-dihydropyridine-3-carboxamide (CAS 242797-38-2), molecular formula C20H16Cl2N2O3 and molecular weight 403.26 g/mol, is a CATO reference standard with documented purity and traceability.
1-(2,4-Dichlorobenzyl)-N-(4-methoxyphenyl)-6-oxo-1,6-dihydropyridine-3-carboxamide (C20H16Cl2N2O3) contains a steroid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. It is notably hygroscopic, 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.
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 | C20H16Cl2N2O3 |
| Molecular Weight | 403.26 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Related Dichlorobenzyl Standards
- 1-(1-(2,6-Dichlorobenzyl)-2-oxo-1,2-dihydropyridin-3-yl)-3-(pyridin-4-ylmethyl)urea (CAS 400084-76-6)
- 1-(2,4-Dichlorobenzyl)-N-(3-methoxyphenyl)-2-oxo-1,2-dihydropyridine-3-carboxamide (CAS 320419-67-8)
- 1-(2,4-Dichlorobenzyl)-N-(4-methoxyphenyl)-2-oxo-1,2-dihydropyridine-3-carboxamide (CAS 338977-60-9)
- N-(1-(2,6-dichlorobenzyl)-2-oxo-1,2-dihydropyridin-3-yl)-4-methoxybenzamide (CAS 338784-55-7)
- N-(1-(3,4-dichlorobenzyl)-2-oxo-1,2-dihydropyridin-3-yl)-4-methoxybenzamide (CAS 400086-19-3)
- N-(3,4-dichlorobenzyl)-N-(3-(methylamino)-1,4-dioxo-1,4-dihydronaphthalen-2-yl)acetamide (CAS 355406-73-4)
- 2-((1-(2,4-Dichlorobenzyl)piperidin-4-yl)thio)quinoline (CAS 232618-17-6)
- 4-((2,4-Dichlorobenzyl)oxy)-3-iodobenzonitrile (CAS 1706434-38-9)
Recommended Standards
- 1-[(2,4-Dichlorophenyl)methyl]-N-(2-methoxyphenyl)-2-oxo-1,2-dihydropyridine-3-carboxamide (CAS 320419-66-7)
- 20-Bromo-3,6,9,12,15,18-hexaoxaicosanoic acid (CAS 411241-11-7)
- 3-{1-[(2,6-dichlorophenyl)methyl]-6-oxo-1,6-dihydropyridin-3-yl}-1-[(pyridin-3-yl)methyl]urea (CAS 338785-03-8)
- tert-Butyl 3-bromo-2-((tert-butoxycarbonyl)oxy)-6-methoxybenzoate (CAS 1830305-97-9)
- 2-Ethoxy-N-(thiophen-3-ylmethyl)benzenesulfonamide (CAS 1210457-03-6)
- 3-(Benzo[d][1,3]dioxol-5-yl)-1H-pyrazole-4-carbaldehyde (CAS 1046461-90-8)
- (R)-1-(4-Fluoro-2-methoxyphenyl)ethan-1-amine hydrochloride (CAS 1354970-56-1)
- Indobufen Impurity 82 (CAS CATO-C4X-179282)
- Methyl 5-hydroxy-6-methylnicotinate (CAS 37531-16-1)
- 2-Chloro-5H-pyrrolo[3,2-d]pyrimidine-7-carboxylic acid (CAS 1936242-90-8)
- Crisaborole Impurity 61 (CAS CATO-C4X-202161)
- Butyl[(2-chloro-6-fluorophenyl)methyl]amine (CAS 893610-81-6)
- 4-methoxy-2-methylpyrimidine-5-carboxylic acid (CAS 72411-88-2)
- (His32,Leu34)-Neuropeptide Y (32-36) (CAS 168916-68-5)
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