Ethyl 6-chloro-4-(4-chlorophenyl)-5-[(1E)-{[(2,4-dichlorophenyl)methoxy]imino}methyl]-2-methyl-1,4-dihydropyridine-3-carboxylate CAS 478261-87-9
| CAS No. | 478261-87-9 |
| Molecular Formula | C23H20Cl4N2O3 |
| Molecular Weight | 514.23 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 Ethyl 6-chloro-4-(4-chlorophenyl)-5-[(1E)-{[(2,4-dichlorophenyl)methoxy]imino}methyl]-2-methyl-1,4-dihydropyridine-3-carboxylate.
Ethyl 6-chloro-4-(4-chlorophenyl)-5-[(1E)-{[(2,4-dichlorophenyl)methoxy]imino}methyl]-2-methyl-1,4-dihydropyridine-3-carboxylate (CAS 478261-87-9) is a high-purity analytical reference standard with the molecular formula C23H20Cl4N2O3 and a molecular weight of 514.23 g/mol.
Owing to a steroid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution, Ethyl 6-chloro-4-(4-chlorophenyl)-5-[(1E)-{[(2,4-dichlorophenyl)methoxy]imino}methyl]-2-methyl-1,4-dihydropyridine-3-carboxylate is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 514.23 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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.
CATO manufactures Ethyl 6-chloro-4-(4-chlorophenyl)-5-[(1E)-{[(2,4-dichlorophenyl)methoxy]imino}methyl]-2-methyl-1,4-dihydropyridine-3-carboxylate 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 | C23H20Cl4N2O3 |
| Molecular Weight | 514.23 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 Ethyl Standards
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Recommended Standards
- (1S,4s)-1,4-bis(4-bromophenyl)-1,4-bis(methoxymethoxy)cyclohexane (CAS 2177264-24-1)
- 9-Bromo-5-(4-bromophenyl)-2-(4-methoxyphenyl)-5,10b-dihydro-1H-benzo[e]pyrazolo[1,5-c][1,3]oxazine (CAS 303061-03-2)
- N-(3,5-bis(trifluoromethyl)phenyl)-3-((2,4-dichlorobenzyl)oxy)thiophene-2-carboxamide (CAS 339098-11-2)
- 2,4-Dichloro-N-(3,5-dichloro-4-(quinolin-3-yloxy)phenyl)benzenesulfonamide (CAS 315224-26-1)
- 1-(Pyridin-4-yl)nonan-1-one (CAS 146690-00-8)
- 1-(1-Isoquinolinyl)piperazine 1-(1-Piperazinyl)isoquinoline 1-(Piperazin-1-yl)isoquinoline 1-Piperazine-1-yl-isoquinoline 126653-00-7 (CAS 126653-00-7)
- 2-(2-formylphenoxy)-N-(2-methoxyphenyl)acetamide (CAS 486995-02-2)
- (+)-U-50488 Hydrochloride (CAS 114528-81-3)
- 3-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-3-(2,4-difluorophenyl)propanoic acid (CAS 1367449-16-8)
- n-(2-Bromoethyl)ethane-1-sulfonamide (CAS 63132-88-7)
- 4-Amino-3-chloro-hydratropic Acid Ethyl Ester (CAS 26406-97-3)
- Ketoprofen Impurity 53 (CAS 1420774-68-0)
- 4-Bromo-1-butene-<SUP>13</SUP>C<SUB>4</SUB> (CAS 1173021-12-9)
- Tirzepatide Impurity 13 (CAS CATO-C4X-324013)
Why CATO?
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