2-Oxo-1-(m-tolyl)-1,2-dihydropyridine-3-carboxylic acid CAS 694479-09-9
| CAS No. | 694479-09-9 |
| Molecular Formula | C13H11NO3 |
| Molecular Weight | 229.23 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
2-Oxo-1-(m-tolyl)-1,2-dihydropyridine-3-carboxylic acid (CAS 694479-09-9), molecular formula C13H11NO3 and molecular weight 229.23 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 2-Oxo-1-(m-tolyl)-1,2-dihydropyridine-3-carboxylic acid (C13H11NO3) 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 its high hydrophobicity (logP), 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).
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), 2-Oxo-1-(m-tolyl)-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 | C13H11NO3 |
| Molecular Weight | 229.23 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 chloroform, dichloromethane, ethyl acetate, DMSO |
| 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.) | 1985 |
| Nitrogen Atoms | 1 |
Recommended Standards
- 2-N-Benzylamino-5-nitropyridine (CAS 21626-41-5)
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- Liothyronine EP Impurity A-13C9-15N (CAS 1431868-11-9)
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- (1E)-1-(2-Chloro-1H-indol-3-yl)-N-(3-methyl-1H-pyrazol-5-yl)methanimine (CAS 477762-90-6)
- (-)-Anomalin (CAS 4970-26-7)
- Semaglutide Impurity 151 xTFA (CAS CATO-C4X-2226151)
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