1-(4-Fluorophenyl)-4-methoxy-1h-pyrazole-3-carboxylic acid CAS 1169973-47-0
| CAS No. | 1169973-47-0 |
| Molecular Formula | C11H9FN2O3 |
| Molecular Weight | 236.20 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
1-(4-Fluorophenyl)-4-methoxy-1h-pyrazole-3-carboxylic acid (C11H9FN2O3) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, fluorine substitution. It is notably hygroscopic, halogen substitution raises its density and boiling point, 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).
1-(4-Fluorophenyl)-4-methoxy-1h-pyrazole-3-carboxylic acid (CAS 1169973-47-0) is a high-purity analytical reference standard with the molecular formula C11H9FN2O3 and a molecular weight of 236.20 g/mol.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures 1-(4-Fluorophenyl)-4-methoxy-1h-pyrazole-3-carboxylic acid under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
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.) | 1989 |
| 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-(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)
- Ethyl 5-(2-fluorophenyl)-1,2,4-oxadiazole-3-carboxylate (CAS 1385696-44-5)
Recommended Standards
- 1-(4-Fluoro-2-methylphenyl)-4-hydroxy-1h-pyrazole-3-carboxylic acid (CAS 1152602-54-4)
- 3-(5-Fluoro-2-nitrophenyl)-1-methyl-1h-pyrazol-5-amine (CAS 1179718-08-1)
- 1-(2-fluoro-5-methylphenyl)-4-hydroxy-1H-pyrazole-3-carboxylic acid (CAS 1152512-01-0)
- Allyl 2-(diethoxyphosphoryl)acetate (CAS 113187-28-3)
- 1-Oxo-2,3-dihydro-1H-pyrrolo[3,4-c]pyridine-6-carbaldehyde (CAS 2847886-20-6)
- 2-Benzyloxy-4-(trifluoromethoxy)phenylboronic acid (CAS 1704064-19-6)
- 3-(Piperidin-1-yl)-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine (CAS 1402166-10-2)
- Ozagrel Impurity 3 (CAS 78712-67-1)
- n-(1-Benzylpiperidin-4-yl)-n-(1-phenylcyclopentyl)formamide (CAS 440087-77-4)
- 3-propylcyclobutan-1-one (CAS 570410-05-8)
- 4-Chloro-6-(3-methoxypiperidin-1-yl)pyrimidine (CAS 945897-16-5)
- 3’-imino-2,3-dihydrospiro[indene-1,2’-[1,4]oxazolidine]-5’-one (CAS 1693585-98-6)
- (S)-3-((tert-Butoxycarbonyl)amino)-3-(3-cyanophenyl)propanoic acid (CAS 500770-81-0)
- Cycloaspeptide D (CAS 691363-62-9)
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