1-[(2,4-Dichlorophenyl)methyl]-N-(2-methoxyphenyl)-2-oxo-1,2-dihydropyridine-3-carboxamide CAS 320419-66-7
| CAS No. | 320419-66-7 |
| Molecular Formula | C20H16Cl2N2O3 |
| Molecular Weight | 403.26 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 1-[(2,4-Dichlorophenyl)methyl]-N-(2-methoxyphenyl)-2-oxo-1,2-dihydropyridine-3-carboxamide.
1-[(2,4-Dichlorophenyl)methyl]-N-(2-methoxyphenyl)-2-oxo-1,2-dihydropyridine-3-carboxamide (CAS 320419-66-7) is a high-purity analytical reference standard with the molecular formula C20H16Cl2N2O3 and a molecular weight of 403.26 g/mol.
Structurally, 1-[(2,4-Dichlorophenyl)methyl]-N-(2-methoxyphenyl)-2-oxo-1,2-dihydropyridine-3-carboxamide (C20H16Cl2N2O3) contains a steroid core, an amide group, a hydroxyl group, an ether linkage, 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 403.26 g/mol, it falls into the moderately-high-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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 Dichlorophenyl Standards
- 3-{1-[(2,6-dichlorophenyl)methyl]-6-oxo-1,6-dihydropyridin-3-yl}-1-[(pyridin-3-yl)methyl]urea (CAS 338785-03-8)
- n-(1-((2,5-Dichlorophenyl)amino)-2-oxo-2-(p-tolyl)ethyl)furan-2-carboxamide (CAS 425631-08-9)
- N-(1-((3,4-Dichlorophenyl)amino)-1-oxo-3-phenylpropan-2-yl)furan-2-carboxamide (CAS 956140-65-1)
- (E)-4-(3-(3,4-dichlorophenyl)-3-oxoprop-1-en-1-yl)phenyl thiophene-2-carboxylate (CAS 329702-32-1)
- 4-[(2E)-3-(2,4-Dichlorophenyl)prop-2-enoyl]phenyl thiophene-2-carboxylate (CAS 306730-08-5)
- 3-(2,6-Dichlorophenyl)-5-methyl-N-[3-methyl-4-(propan-2-yl)phenyl]-1,2-oxazole-4-carboxamide (CAS 946387-21-9)
- 2-{[(2,6-dichlorophenyl)methyl]sulfanyl}-4-[(E)-2-(4-methoxyphenyl)ethenyl]pyrimidine (CAS 339278-39-6)
- 4-(3,4-dichlorophenyl)piperazinyl phenylcyclopentyl ketone (CAS 1024360-29-9)
Recommended Standards
- 1-(2,4-Dichlorobenzyl)-N-(4-methoxyphenyl)-6-oxo-1,6-dihydropyridine-3-carboxamide (CAS 242797-38-2)
- 20-Bromo-3,6,9,12,15,18-hexaoxaicosanoic acid (CAS 411241-11-7)
- 1-(2,4-Dichlorobenzyl)-N-(4-methoxyphenyl)-2-oxo-1,2-dihydropyridine-3-carboxamide (CAS 338977-60-9)
- 1-(2,4-Dichlorobenzyl)-N-(3-methoxyphenyl)-2-oxo-1,2-dihydropyridine-3-carboxamide (CAS 320419-67-8)
- [3-fluoro-5-(morpholin-4-yl)phenyl]methanol (CAS 1296310-49-0)
- 4-(Furan-2-carbonyl)-8-methyl-1-oxa-4,8-diazaspiro[4.5]decane-3-carboxylic acid (CAS 1326808-60-9)
- (2S)-2-(5-Acetamido-2-methoxybenzenesulfonamido)-3-phenylpropanoic acid (CAS 87670-83-5)
- N-(4-Bromobenzyl)-2-fluorobenzamide (CAS 1306339-92-3)
- Methyl 3-(5-hydroxy-1-methoxyisoquinolin-4-yl)benzoate (CAS 656234-13-8)
- (4-(Furan-2-yl)-1-methylpyrrolidin-3-yl)methanamine (CAS 1520188-97-9)
- 1,3-Dioxoisoindolin-2-yl methanesulfonate (CAS 57212-70-1)
- Rimegepant Impurity 98 (CAS CATO-C4X-248798)
- (2R,3R,4R,5R,6R,7S)-Octan-1,2,3,4,5,6,7,8-octaol (CAS 27655-86-3)
- D-allo-Thr5-Semaglutide (CAS CATO-C4X-2226243)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com