3-[(2,6-Dichlorophenyl)methyl]-1-(3,5-dimethoxyphenyl)-2-methyl-1,4-dihydropyridin-4-one CAS 339017-20-8
| CAS No. | 339017-20-8 |
| Molecular Formula | C21H19Cl2NO3 |
| Molecular Weight | 404.29 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
3-[(2,6-Dichlorophenyl)methyl]-1-(3,5-dimethoxyphenyl)-2-methyl-1,4-dihydropyridin-4-one (CAS 339017-20-8) is a high-purity analytical reference standard with the molecular formula C21H19Cl2NO3 and a molecular weight of 404.29 g/mol.
Structurally, 3-[(2,6-Dichlorophenyl)methyl]-1-(3,5-dimethoxyphenyl)-2-methyl-1,4-dihydropyridin-4-one (C21H19Cl2NO3) contains a steroid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 12.0, corresponding to approximately 12 ring(s) or double-bond equivalent(s). With a molecular weight of 404.29 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.
CATO manufactures 3-[(2,6-Dichlorophenyl)methyl]-1-(3,5-dimethoxyphenyl)-2-methyl-1,4-dihydropyridin-4-one under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C21H19Cl2NO3 |
| Molecular Weight | 404.29 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
Related Dichlorophenyl Standards
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- 1-(3,5-Dichlorophenyl)-3-(4-phenylpiperazin-1-yl)pyrrolidine-2,5-dione (CAS 301194-50-3)
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- (E)-[(2,6-Dichlorophenyl)methoxy]({6-phenyl-2H,3H-imidazo[2,1-b][1,3]thiazol-5-yl}methylidene)amine (CAS 400078-53-7)
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- N-(3,5-dichlorophenyl)-1-(3-nitro-4-(pyridin-2-ylthio)phenyl)methanimine (CAS 297150-28-8)
- Ethyl 1-(3,4-dichlorophenyl)-5-(trichloromethyl)-1H-1,2,4-triazole-3-carboxylate (CAS 854019-67-3)
Recommended Standards
- 3-Bromo-N-(6-((Cis)-2,6-dimethylmorpholino)pyridin-3-yl)-2-methylbenzamide, 97% (CAS 1221721-86-3)
- 2-Cyclopentyl-3-(2,4-dichlorophenyl)-1-oxo-1,2,3,4-tetrahydroisoquinoline-4-carboxylic acid (CAS 400073-92-9)
- DDD01035881, >98% (HPLC) (CAS 1396858-56-2)
- 2-(6-Chloro-4-(4-chlorophenyl)-2-methylquinolin-3-yl)-2-isopropoxyacetic acid (CAS 957892-23-8)
- (S)-1-(2-fluorophenyl)butan-1-amine (CAS 1212922-49-0)
- N-Methyl-N-(1-methylpiperidin-4-yl)piperidine-4-carboxamide Dihydrochloride (CAS 1171802-05-3)
- 1-Bromo-2-(bromomethyl)-3-(trifluoromethoxy)benzene (CAS 1253189-05-7)
- Fmoc-Ala-Gly-OH (CAS 116747-54-7)
- 2-((3-Chloro-5-(trifluoromethyl)pyridin-2-yl)thio)-N-isopropyl-1-methyl-1H-imidazole-5-carboxamide (CAS 339278-16-9)
- 1-[4-(1-aminoethyl)phenyl]-1,3-diazinan-2-one (CAS 1487077-19-9)
- Trans-2-ethoxycyclopropanecarboxylicacid (CAS 60212-41-1)
- Ethyl 1,4,6,7-tetrahydrothiopyrano[4,3-c]pyrazole-3-carboxylate (CAS 912635-72-4)
- 6-Ethoxy-1,3,3-trimethylindolin-2-one (CAS 368834-71-3)
- Semaglutide impurity 95 (CAS CATO-C4X-222695)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com