1-(4-Fluorophenyl)-6-oxo-1,4,5,6-tetrahydropyridazine-3-carboxylic acid CAS 881044-41-3
| CAS No. | 881044-41-3 |
| Molecular Formula | C11H9FN2O3 |
| Molecular Weight | 236.20 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 1-(4-Fluorophenyl)-6-oxo-1,4,5,6-tetrahydropyridazine-3-carboxylic acid is closely related to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, fluorine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
1-(4-Fluorophenyl)-6-oxo-1,4,5,6-tetrahydropyridazine-3-carboxylic acid (CAS 881044-41-3), molecular formula C11H9FN2O3 and molecular weight 236.20 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C11H9FN2O3, 1-(4-Fluorophenyl)-6-oxo-1,4,5,6-tetrahydropyridazine-3-carboxylic acid contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, fluorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 236.20 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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).
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.
As a certified reference material (CRM), 1-(4-Fluorophenyl)-6-oxo-1,4,5,6-tetrahydropyridazine-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 | C11H9FN2O3 |
| Molecular Weight | 236.20 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| 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 |
| 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 2 |
Related Fluorophenyl Standards
- Methyl 1-(4-fluorophenyl)-5-hydroxy-1H-pyrazole-3-carboxylate (CAS 1007073-76-8)
- Ethyl 3-(2-fluorophenyl)-1,2,4-oxadiazole-5-carboxylate (CAS 1018125-37-5)
- 3-(5-(4-Fluorophenyl)-1,3,4-oxadiazol-2-yl)propanoic acid (CAS 1082828-46-3)
- 1-(4-Fluorophenyl)-4-methoxy-1h-pyrazole-3-carboxylic acid (CAS 1169973-47-0)
- 1-(2-Fluorophenyl)-5-methoxy-1H-pyrazole-3-carboxylic acid (CAS 1239726-11-4)
- Ethyl 3-(3-fluorophenyl)-1,2,4-oxadiazole-5-carboxylate (CAS 1239736-58-3)
- 1-(3-Fluorophenyl)-6-oxo-1,4,5,6-tetrahydropyridazine-3-carboxylic acid (CAS 1273860-31-3)
- Ethyl 5-(3-fluorophenyl)-1,2,4-oxadiazole-3-carboxylate (CAS 1274477-51-8)
Recommended Standards
- 1-(3-Fluoro-5-methoxyphenyl)-1H-pyrazole-3-carboxylic acid (CAS 2024389-76-0)
- 1-(4-Fluorophenyl)-N-methyl-4-nitro-1H-pyrazol-5-amine (CAS 318238-08-3)
- 1-(2-Fluorophenyl)-N-methyl-4-nitro-1H-pyrazol-5-amine (CAS 318238-11-8)
- 2-[1-(4-fluorophenyl)-5-oxo-2,5-dihydro-1h-pyrazol-3-yl]acetic acid (CAS 852851-74-2)
- Methyl 8-isopropyl-2-methylimidazo[1,2-b]pyridazine-7-carboxylate (CAS 2434602-70-5)
- N-(4-fluoro-3-methylbenzyl)thietan-3-amine (CAS 1872959-57-3)
- 3-(2-((4-Fluorobenzyl)oxy)phenyl)-1-((4-methoxyphenyl)sulfonyl)-1H-pyrazole (CAS 477713-49-8)
- 2,3-Dichloroanisole (CAS 1984-59-4)
- 4-(N-cyclohexylsulfamoyl)thiophene-2-carboxylic acid (CAS 950254-79-2)
- Methyl 2-(2-(1H-indol-3-yl)vinyl)-6-methoxybenzoate (CAS 1171924-38-1)
- (1s,3s)-3-(methylamino)cyclobutane-1-carboxylic acid hydrochloride (CAS 2059915-19-2)
- 3,5-Dimethyl-4-nitro-1-(3-phenoxybenzyl)-1h-pyrazole (CAS 1006958-93-5)
- (E)-N-(4-Methoxybenzylidene)benzenesulfonamide (CAS 664985-99-3)
- FMRF Amide Related Peptide. (CAS 149471-12-5)
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