Diethyl 4-(5-(2,5-dichlorophenyl)furan-2-yl)-2,6-dimethyl-1,4-dihydropyridine-3,5-dicarboxylate CAS 303093-78-9
| CAS No. | 303093-78-9 |
| Molecular Formula | C23H23Cl2NO5 |
| Molecular Weight | 464.34 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 464.34 g/mol gives Diethyl 4-(5-(2,5-dichlorophenyl)furan-2-yl)-2,6-dimethyl-1,4-dihydropyridine-3,5-dicarboxylate distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
Diethyl 4-(5-(2,5-dichlorophenyl)furan-2-yl)-2,6-dimethyl-1,4-dihydropyridine-3,5-dicarboxylate (CAS 303093-78-9), molecular formula C23H23Cl2NO5 and molecular weight 464.34 g/mol, is a CATO reference standard with documented purity and traceability.
Diethyl 4-(5-(2,5-dichlorophenyl)furan-2-yl)-2,6-dimethyl-1,4-dihydropyridine-3,5-dicarboxylate (C23H23Cl2NO5) contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. Halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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 | C23H23Cl2NO5 |
| Molecular Weight | 464.34 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 methanol, acetonitrile, DMSO, water (slightly soluble) |
| 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 Diethyl Standards
- Diethyl 4-(5-(3,4-dichlorophenyl)furan-2-yl)-2,6-dimethyl-1,4-dihydropyridine-3,5-dicarboxylate (CAS 301306-01-4)
- Diethyl ((4-(3-isopropyl-4-(methoxymethoxy)benzyl)-3,5-dimethylphenoxy)methyl)phosphonate (CAS 852947-40-1)
- Diethyl N-[(1S,2S)-2-[(1-pyrenylmethyl)amino]cyclohexyl]phosphoramidate (CAS 1792981-89-5)
- 4,4'-Diethyl-5,5'-bis(phenethylthio)-4H,4'H-3,3'-bi(1,2,4-triazole) (CAS 500267-41-4)
- Diethyl 2-(((4-(decyloxy)-3-ethoxyphenyl)amino)methylene)malonate (CAS 26692-07-9)
- 3,5-Diethyl 6-amino-1-{[3-chloro-5-(trifluoromethyl)pyridin-2-yl](methyl)amino}-2-oxo-1,2-dihydropyridine-3,5-dicarboxylate (CAS 551921-17-6)
- 1,3-Diethyl 2-({4-[(2-chloro-6-fluorophenyl)methoxy]phenyl}methyl)-2-acetamidopropanedioate (CAS 439108-33-5)
- Diethyl {[1-(triphenylmethyl)-1H-imidazol-4-yl]methyl}phosphonate (CAS 473659-21-1)
Recommended Standards
- 3-(furan-3-yl)-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1-tosyl-1H-pyrrolo[2,3-b]pyridine (CAS 875639-27-3)
- 1-(4-(3-Chloro-5-(trifluoromethyl)pyridin-2-yl)piperazin-1-yl)-2-((4-chlorophenyl)thio)propan-1-one (CAS 634155-05-8)
- Pyrifluquinazon (CAS 337458-27-2)
- 2-(4-Bromo-5-(3,4,5-trimethoxyphenyl)-4H-1,2,4-triazol-3-yl)-1-phenylethanethione (CAS 140405-98-7)
- 1,1-Bis(Dodecyloxy) Hexadecane (CAS 56554-64-4)
- N-(2-Fluorobenzyl)-2-(5-(3-methylthiophen-2-yl)-1,3,4-oxadiazol-2-yl)acetamide (CAS 1286728-43-5)
- Dicyclohexylamine (S)-2-((tert-butoxycarbonyl)amino)-4-methoxybutanoate (CAS 349545-91-1)
- Ruthenium, [1,1'-bis[bis(1-methylethyl)phosphino-κP]ferrocene]dichloro(1,2-ethanediamine-κN,κN')-, (OC-6-13) (CAS 899444-57-6)
- 5-(5-Methyl-2-furyl)cyclohexane-1,3-dione (CAS 123638-54-0)
- 5-Methoxy-3-propionyl-1,6-naphthyridin-2(1H)-one (CAS 1359657-03-6)
- Methyl 2-(4-hydroxypiperidin-1-yl)acetate (CAS 956319-38-3)
- Diphenyl(4-phenylthio)phenylsufonium hexafluorophosphate (CAS 68156-13-8)
- Dimethyl((4-nitrophenyl)imino)-lambda6-sulfanone (CAS 56158-00-0)
- Semaglutide impurity 66 (CAS CATO-C4X-222666)
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