Methyl 3-benzamido-6-[(2Z)-2-{[(2,4-dichlorophenyl)methoxy]imino}ethyl]-2-oxo-2H-pyran-5-carboxylate CAS 303986-17-6
| CAS No. | 303986-17-6 |
| Molecular Formula | C23H18Cl2N2O6 |
| Molecular Weight | 489.30 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 Methyl 3-benzamido-6-[(2Z)-2-{[(2,4-dichlorophenyl)methoxy]imino}ethyl]-2-oxo-2H-pyran-5-carboxylate.
Methyl 3-benzamido-6-[(2Z)-2-{[(2,4-dichlorophenyl)methoxy]imino}ethyl]-2-oxo-2H-pyran-5-carboxylate (CAS 303986-17-6) is a high-purity analytical reference standard with the molecular formula C23H18Cl2N2O6 and a molecular weight of 489.30 g/mol.
The molecular framework of Methyl 3-benzamido-6-[(2Z)-2-{[(2,4-dichlorophenyl)methoxy]imino}ethyl]-2-oxo-2H-pyran-5-carboxylate (C23H18Cl2N2O6) is characterized by a flavonoid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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 | C23H18Cl2N2O6 |
| Molecular Weight | 489.30 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) | 15.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Related Methyl Standards
- Methyl 3-benzamido-6-[(2Z)-2-{[(3,4-dichlorophenyl)methoxy]imino}ethyl]-2-oxo-2H-pyran-5-carboxylate (CAS 303986-18-7)
- Methyl 3-benzamido-2-oxo-6-[(E)-2-[(4-phenoxyphenyl)amino]ethenyl]-2H-pyran-5-carboxylate (CAS 341966-25-4)
- 6,9-Bis(benzamido)-2-ethoxyacridine 10-oxide (CAS 95299-77-7)
- Methyl 2-benzamido-5-((4-(ethoxycarbonyl)phenyl)carbamoyl)-4-methylthiophene-3-carboxylate (CAS 335410-92-9)
- 3-Benzamido-N-(5-chloro-4-((4-chlorophenyl)(cyano)methyl)-2-methylphenyl)-4-methylbenzamide (CAS 945371-38-0)
- (S)-(((1-(4-Benzamido-2-oxopyrimidin-1(2H)-yl)-3-hydroxypropan-2-yl)oxy)methyl)phosphonic acid (CAS 132336-37-9)
- ((2-Benzamido-5-bromophenyl)(phenyl)methyl)glycine (CAS 313650-48-5)
- Methyl 2-benzamido-5-((2-ethoxyphenyl)carbamoyl)-4-methylthiophene-3-carboxylate (CAS 335408-24-7)
Recommended Standards
- tert-Butyl 4-((5-bromo-2-(trifluoromethoxy)phenyl)sulfonyl)piperazine-1-carboxylate (CAS 1704069-30-6)
- 4-(2,6-Dichlorophenyl)-2-methyl-6-[(E)-2-{[4-(trifluoromethoxy)phenyl]amino}ethenyl]pyridine-3,5-dicarbonitrile (CAS 303148-23-4)
- tert-Butyl (5-(tributylstannyl)thiazol-2-yl)carbamate (CAS 243972-26-1)
- 2-Ethoxy-4-formyl-6-iodophenyl 4-acetamidobenzenesulfonate (CAS 431925-93-8)
- Methyl 3-(1H-pyrrolo[2,3-b]pyridin-2-yl)propanoate (CAS 1956326-46-7)
- n-(2-(Piperazin-1-yl)ethyl)benzo[d][1,3]dioxole-5-carboxamide (CAS 1082576-60-0)
- Bicyclo[1.1.1]Pentan-1-ylmethanediol (CAS 2375195-15-4)
- 4-(2-Methylallyl)-1,1'-biphenyl (CAS 53573-00-5)
- 2-(4-Chlorophenyl)-4-hydroxy-6H-1,3-thiazin-6-one (CAS 1433-65-4)
- Dexchlorpheniramine Impurity 6 (CAS CATO-C4X-16116)
- 4,6-dibromo-1,3-dihydro-2H-benzo[d]imidazol-2-one (CAS 84712-09-4)
- 1-((1-Methylpyrrolidin-2-yl)methyl)piperazine (CAS 933704-64-4)
- 2-Naphthyl p-Toluenesulfonate (CAS 7385-85-5)
- Semaglutide impurity 57 (CAS 2773558-06-6)
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