3-(Difluoromethyl)-5-hydroxy-2-oxo-1,2-dihydropyridine-4-carboxamide CAS 1803667-84-6
| CAS No. | 1803667-84-6 |
| Molecular Formula | C7H6F2N2O3 |
| Molecular Weight | 204.13 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
3-(Difluoromethyl)-5-hydroxy-2-oxo-1,2-dihydropyridine-4-carboxamide (CAS 1803667-84-6), molecular formula C7H6F2N2O3 and molecular weight 204.13 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C7H6F2N2O3, 3-(Difluoromethyl)-5-hydroxy-2-oxo-1,2-dihydropyridine-4-carboxamide contains an amide group, a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 204.13 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
As a certified reference material (CRM), 3-(Difluoromethyl)-5-hydroxy-2-oxo-1,2-dihydropyridine-4-carboxamide 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 | C7H6F2N2O3 |
| Molecular Weight | 204.13 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation |
| 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1995 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 2 |
Related Difluoromethyl Standards
- 5-(Difluoromethyl)-3,4-dihydroxypicolinamide (CAS 1803668-07-6)
- 6-(Difluoromethyl)-3,5-dihydroxypicolinamide (CAS 1803668-12-3)
- 2-(Difluoromethyl)-5-methoxy-3-nitropyridine (CAS 1804689-11-9)
- 2-(Difluoromethyl)-4-nitropyridine-6-methanol (CAS 1804695-09-7)
- 4-(Difluoromethyl)-3,5-dihydroxypicolinamide (CAS 1804715-12-5)
- (4-(Difluoromethyl)-5-nitropyridin-2-yl)methanol (CAS 1804719-50-3)
- 2-(Difluoromethyl)-3,6-dihydroxypyridine-4-carboxamide (CAS 1805008-92-7)
- 5-(Difluoromethyl)-4-nitropyridine-2,3-diamine (CAS 1805043-18-8)
Recommended Standards
- 2-(Difluoromethoxy)-6-hydroxybenzoic acid (CAS 1799439-06-7)
- 2-(Difluoromethoxy)-6-nitroaniline (CAS 170986-71-7)
- 2,2-Difluoro-2-(6-methoxypyridazin-3-yl)acetic acid (CAS 1706439-48-6)
- 4-Amino-6-(difluoromethyl)-5-hydroxypicolinic acid (CAS 1803698-12-5)
- Fmoc-Glu(ODmab)-OH (CAS 268730-86-5)
- Benzyl 2-(2-methylpyridin-4-yl)pyrrolidine-1-carboxylate (CAS 1352493-70-9)
- 4-(1,2,4-Oxadiazol-3-yl)-2-(trifluoromethyl)benzaldehyde (CAS 1262413-45-5)
- N-((5-(3-Methoxyphenyl)-1H-1,2,4-triazol-3-yl)methyl)aniline (CAS 1171933-50-8)
- Furazolidone Impurity 4 (CAS CATO-C4X-29014)
- 4-Chloro-6-cyanoquinoline-3-carboxamide (CAS 1131604-95-9)
- Risperidone EP Impurity C (CAS 130049-85-3)
- (S)-2-Amino-2-(3,4-dichlorophenyl)acetic acid (CAS 1241677-98-4)
- 2-Nitro-N-(5-((2-oxo-2-((4-(trifluoromethoxy)phenyl)amino)ethyl)thio)-1,3,4-thiadiazol-2-yl)benzamide (CAS 868973-56-2)
- Des-Phe22-Tirzepatide (CAS CATO-CPTD788951)
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