4-Methoxy-2-oxo-1,2-dihydropyridine-3-carboxylic acid CAS 87853-70-1
| CAS No. | 87853-70-1 |
| Molecular Formula | C7H7NO4 |
| Molecular Weight | 169.13 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 169.13 g/mol gives 4-Methoxy-2-oxo-1,2-dihydropyridine-3-carboxylic acid distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
4-Methoxy-2-oxo-1,2-dihydropyridine-3-carboxylic acid (CAS 87853-70-1) is a high-purity analytical reference standard with the molecular formula C7H7NO4 and a molecular weight of 169.13 g/mol.
4-Methoxy-2-oxo-1,2-dihydropyridine-3-carboxylic acid (C7H7NO4) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 4-Methoxy-2-oxo-1,2-dihydropyridine-3-carboxylic acid meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C7H7NO4 |
| Molecular Weight | 169.13 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1982 |
| Nitrogen Atoms | 1 |
Related Methoxy Standards
- 5-Methoxy-4-oxo-1,4-dihydropyridine-2-carboxylic acid (CAS 103878-37-1)
- 5-Methoxy-6-oxo-1,6-dihydropyridine-2-carboxylic acid (CAS 112750-29-5)
- 4-Methoxy-6-oxo-1,6-dihydropyridine-2-carboxylic acid (CAS 1393532-27-8)
- 4-Methoxy-3-nitrophenol (CAS 15174-02-4)
- 4-Methoxy-2-nitrophenol (CAS 1568-70-3)
- 2-Methoxy-6-nitrophenol (CAS 15969-08-1)
- 3-Methoxy-4-nitrophenol (CAS 16292-95-8)
- 5-Methoxy-2-oxo-1,2-dihydropyridine-3-carboxylic acid (CAS 1864052-01-6)
Recommended Standards
- 4-Hydroxy-6-methyl-2-oxo-1,2-dihydropyridine-3-carboxylic acid (CAS 846557-80-0)
- 4-Methoxy-6-oxo-1,6-dihydropyridine-3-carboxylic acid (CAS 57658-59-0)
- 4-Hydroxy-5-methoxypyridine-2-carboxylic acid (CAS 51727-04-9)
- 5-(Hydroxymethyl)-2-nitrophenol (CAS 61161-83-9)
- 2-Amino-1-(3-bromo-4-methoxyphenyl)propan-1-one (CAS 4374-21-4)
- 2-Amino-5-(4-fluorophenyl)thiazole-4-carboxylic acid (CAS 923106-11-0)
- 1-Boc-6-bromoindoline (CAS 214614-97-8)
- 4-(4,6-Diphenyl-1,3,5-triazin-2-yl)phenol (CAS 7753-02-8)
- N-(Tetrahydro-2-furanylmethyl)-3-piperidinecarboxamide hydrochloride (CAS 1220037-76-2)
- 2-(2,4,6-Trichloro-3,5-dimethylphenoxy)acetic acid (CAS 19545-98-3)
- 5-Bromo-2-thiopheneboronic acid (CAS 162607-17-2)
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- Peptide YY (3-36) (canine, mouse, porcine, rat) trifluoroacetate salt (CAS 126339-09-1)
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