1-(2,4-Dichlorobenzyl)-N-(2,4-dimethoxyphenyl)-2-oxo-1,2-dihydropyridine-3-carboxamide CAS 320419-64-5
| CAS No. | 320419-64-5 |
| Molecular Formula | C21H18Cl2N2O4 |
| Molecular Weight | 433.28 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-Dichlorobenzyl)-N-(2,4-dimethoxyphenyl)-2-oxo-1,2-dihydropyridine-3-carboxamide.
1-(2,4-Dichlorobenzyl)-N-(2,4-dimethoxyphenyl)-2-oxo-1,2-dihydropyridine-3-carboxamide (CAS 320419-64-5) is a high-purity analytical reference standard with the molecular formula C21H18Cl2N2O4 and a molecular weight of 433.28 g/mol.
Based on its molecular formula C21H18Cl2N2O4, 1-(2,4-Dichlorobenzyl)-N-(2,4-dimethoxyphenyl)-2-oxo-1,2-dihydropyridine-3-carboxamide contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 433.28 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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).
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
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 | C21H18Cl2N2O4 |
| Molecular Weight | 433.28 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-(2,4-Dichlorobenzyl)-N-(2,5-dimethoxyphenyl)-2-oxo-1,2-dihydropyridine-3-carboxamide (CAS 320419-84-9)
- 1-(2,4-Dichlorobenzyl)-N-(3,4-dimethoxyphenyl)-2-oxo-1,2-dihydropyridine-3-carboxamide (CAS 320419-63-4)
- 1-(2,4-Dichlorobenzyl)-N-(3,5-dimethoxyphenyl)-2-oxo-1,2-dihydropyridine-3-carboxamide (CAS 320419-83-8)
- 2-((2,6-Dichlorobenzyl)thio)-6-(4-methoxyphenyl)-[1,2,4]triazolo[1,5-a]pyrimidin-7-amine (CAS 338403-86-4)
- 3-(2,4-Dichlorobenzyl)-1-(3,4-dimethoxyphenethyl)-4-hydroxypyridin-2(1H)-one (CAS 478079-19-5)
- N-(3,4-dichlorobenzyl)-N-(3-(isopropylamino)-1,4-dioxo-1,4-dihydronaphthalen-2-yl)acetamide (CAS 355406-74-5)
- 1-(2,4-Dichlorobenzyl)-N-(4,6-dimethoxypyrimidin-2-yl)-2-oxo-1,2-dihydropyridine-3-carboxamide (CAS 320419-91-8)
- Methyl 2-(1-(2,4-dichlorobenzyl)-6-oxo-1,6-dihydropyridine-3-carboxamido)benzoate (CAS 242797-49-5)
Recommended Standards
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