5-Methoxy-4-oxo-N-phenyl-1,4-dihydropyridine-3-carboxamide CAS 1087659-18-4
| CAS No. | 1087659-18-4 |
| Molecular Formula | C13H12N2O3 |
| Molecular Weight | 244.25 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The molecular framework of 5-Methoxy-4-oxo-N-phenyl-1,4-dihydropyridine-3-carboxamide (C13H12N2O3) is characterized by a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. 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. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
5-Methoxy-4-oxo-N-phenyl-1,4-dihydropyridine-3-carboxamide (CAS 1087659-18-4) is a high-purity analytical reference standard with the molecular formula C13H12N2O3 and a molecular weight of 244.25 g/mol.
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 | C13H12N2O3 |
| Molecular Weight | 244.25 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°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 |
| Degree of Unsaturation (DBE) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1989 |
| Nitrogen Atoms | 2 |
Related Methoxy Standards
- 3-Methoxy-4-((3-methylisoxazol-5-yl)methoxy)benzonitrile (CAS 1042799-24-5)
- 2-(2-Methoxy-phenylamino)-nicotinic acid (CAS 114501-02-9)
- Methyl 6-methoxy-2-phenylpyrimidine-4-carboxylate (CAS 1242268-01-4)
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- 3-Methoxy-4-nitro-N-phenylaniline (CAS 723296-85-3)
Recommended Standards
- 2-(4-Methoxyphenyl)-4-methylpyrimidine-5-carboxylic acid (CAS 1087605-42-2)
- 2-(4-Ethoxyphenyl)pyrimidine-4-carboxylic acid (CAS 1092300-85-0)
- Benzo[d][1,3]dioxol-5-yl(3,5-dimethyl-1H-pyrazol-1-yl)methanone (CAS 108132-58-7)
- 3-cyclobutanecarbonyl-5-nitro-1H-indole (CAS 1097117-03-7)
- 2-Amino-6-(4-(trifluoromethyl)phenyl)pyridine-3,4,5-tricarbonitrile (CAS 478068-16-5)
- 1-(1-Methoxypropan-2-yl)-1h-1,2,3-triazol-4-amine (CAS 1523024-55-6)
- 1-(3-Fluoro-4-pyridinyl)-piperazine (CAS 1260227-78-8)
- 6-Methoxy-3,4-dihydroisoquinoline hydrochloride (CAS 93549-15-6)
- Vinyl 7,7-dimethyloctanoate (CAS 195321-14-3)
- Tafamidis impurity 10 (CAS CATO-C4X-287710)
- Landiolol Impurity 80 (CAS CATO-C4X-262180)
- N-(1H-Benzo[d]imidazol-1-yl)-N-methylformamide (CAS 148320-46-1)
- 1-Bromo-3,4-dichloro-2-nitrobenzene (CAS 1805023-64-6)
- Sperm Peptide P10G (H-2424.0001) (CAS 137353-73-2)
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