2-(4-Chlorophenyl)-N-(1-(2,6-dichlorobenzyl)-2-oxo-1,2-dihydropyridin-3-yl)acetamide CAS 338784-87-5
| CAS No. | 338784-87-5 |
| Molecular Formula | C20H15Cl3N2O2 |
| Molecular Weight | 421.70 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
2-(4-Chlorophenyl)-N-(1-(2,6-dichlorobenzyl)-2-oxo-1,2-dihydropyridin-3-yl)acetamide (CAS 338784-87-5), molecular formula C20H15Cl3N2O2 and molecular weight 421.70 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 2-(4-Chlorophenyl)-N-(1-(2,6-dichlorobenzyl)-2-oxo-1,2-dihydropyridin-3-yl)acetamide (C20H15Cl3N2O2) 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 421.70 g/mol, it falls into the moderately-high-molecular-weight range. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
As a certified reference material (CRM), 2-(4-Chlorophenyl)-N-(1-(2,6-dichlorobenzyl)-2-oxo-1,2-dihydropyridin-3-yl)acetamide meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C20H15Cl3N2O2 |
| Molecular Weight | 421.70 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 Chlorophenyl Standards
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Recommended Standards
- 7-(1,3-dioxo-2,3-dihydro-1H-isoindol-2-yl)-N-(2,2,2-trichloro-1-hydroxyethyl)heptanamide (CAS 1803571-70-1)
- 2-Chloro-3-(4-(3,4-dichlorophenyl)piperazin-1-yl)naphthalene-1,4-dione (CAS 329778-23-6)
- Diclazuril-methyl (CAS 103337-71-9)
- 5-Chloro-1-(3,4-dichlorobenzyl)-N-methyl-6-oxo-N-phenyl-1,6-dihydropyridine-3-carboxamide (CAS 339009-05-1)
- 1-Amino-6-methylnaphthalene (CAS 116530-22-4)
- 1-(4-Chloro-1-phenylbutyl)-4-fluorobenzene (CAS 3311-99-7)
- 2-Bromo-5-(trifluoromethyl)-1,3,4-thiadiazole (CAS 37461-61-3)
- 4-(Aminomethyl)-6-(difluoromethyl)-3-methoxypicolinaldehyde (CAS 1361871-94-4)
- N1-(2-chloroethanimidoyl)-3,5-di(trifluoromethyl)benzene-1-sulphonamide (CAS 680579-96-8)
- 1-(3-Butoxy-4,5-difluorophenyl)propan-1-one (CAS 1443345-74-1)
- 3-(2-(1H-tetrazol-1-yl)ethyl)-5-fluoro-2-methyl-1H-indole (CAS 890092-63-4)
- 2-(4-Acetylphenoxy)-2-methylpropanoic acid (CAS 52179-07-4)
- 1,2,3,4-Tetrahydro-5-isoquinolinol (CAS 102877-50-9)
- Semaglutide impurity 266 (CAS CATO-C4X-2226266)
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