N-(1-(2,6-dichlorobenzyl)-2-oxo-1,2-dihydropyridin-3-yl)-4-methylbenzamide CAS 338784-51-3
| CAS No. | 338784-51-3 |
| Molecular Formula | C20H16Cl2N2O2 |
| Molecular Weight | 387.26 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 N-(1-(2,6-dichlorobenzyl)-2-oxo-1,2-dihydropyridin-3-yl)-4-methylbenzamide.
CATO supplies N-(1-(2,6-dichlorobenzyl)-2-oxo-1,2-dihydropyridin-3-yl)-4-methylbenzamide (CAS 338784-51-3), a certified reference material (molecular formula C20H16Cl2N2O2, MW 387.26 g/mol) for analytical method development and quality control.
Based on its molecular formula C20H16Cl2N2O2, N-(1-(2,6-dichlorobenzyl)-2-oxo-1,2-dihydropyridin-3-yl)-4-methylbenzamide contains a steroid 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 387.26 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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 | C20H16Cl2N2O2 |
| Molecular Weight | 387.26 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, 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 N Standards
- 2-((2,6-Dichlorobenzyl)thio)-7-phenyl-[1,2,4]triazolo[1,5-a]pyrimidine (CAS 338403-82-0)
- 1-(1-(2,6-Dichlorobenzyl)-6-oxo-1,6-dihydropyridin-3-yl)-3-phenylurea (CAS 338784-63-7)
- 2,4-Dichlorobenzyl 1,2,3,4-tetrahydroacridine-9-carboxylate (CAS 728929-60-0)
- 2-((2,6-Dichlorobenzyl)thio)-7-(pyridin-2-yl)-[1,2,4]triazolo[1,5-a]pyrimidine (CAS 338403-84-2)
- 3-((2,6-Dichlorobenzyl)oxy)-2-methyl-1-(4-methylbenzyl)pyridin-4(1H)-one (CAS 338956-78-8)
- 2-(1-(2,4-Dichlorobenzyl)-2-oxo-1,2-dihydropyridine-3-carbonyl)-N-methylhydrazine-1-carbothioamide (CAS 242471-88-1)
- 2-(1-(2,4-Dichlorobenzyl)-6-oxo-1,6-dihydropyridine-3-carbonyl)-N-methylhydrazine-1-carbothioamide (CAS 477853-03-5)
- Methyl 7-(3,4-dichlorobenzyl)-5,8-dioxohexahydro-3H-thiazolo[3,4-a]pyrazine-3-carboxylate (CAS 294849-03-9)
Recommended Standards
- 5-Chloro-1-(4-chlorobenzyl)-N-methyl-6-oxo-N-phenyl-1,6-dihydropyridine-3-carboxamide (CAS 339024-77-0)
- N-benzyl-1-(2,6-dichlorobenzyl)-2-oxo-1,2-dihydropyridine-3-carboxamide (CAS 338754-60-2)
- 4,7-Bis(4-chlorophenyl)-3,4,5,6,7,8-hexahydro-2H-1-benzopyran-2,5-dione (CAS 338750-78-0)
- N-benzyl-1-(2,6-dichlorobenzyl)-6-oxo-1,6-dihydropyridine-3-carboxamide (CAS 339008-65-0)
- 3,4-Dichlorophenethyl carbamimidothioate (CAS 75366-03-9)
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- Acetyl-(Ala11·15)-Endothelin-1 (6-21) (CAS 143113-45-5)
- 59880-97-6 Chemotactic peptide F-Met-Leu-Phe L-Phenylalanine, N-(N-(N-formyl-L-methionyl)-L-leucyl)- N-Formyl-L-methionyl-L-leucyl-L-phenylalanine N-Formyl-Met-Leu-Phe N-Formylmethionine leucyl-phenylalanine fMLF fMLP (misnomer but widely used) (CAS 59880-97-6)
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