4-[5-(4-Fluorophenyl)-1H-pyrazol-1-yl]benzoic acid CAS 926237-30-1
| CAS No. | 926237-30-1 |
| Molecular Formula | C16H11FN2O2 |
| Molecular Weight | 282.27 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.
CATO supplies 4-[5-(4-Fluorophenyl)-1H-pyrazol-1-yl]benzoic acid (CAS 926237-30-1), a certified reference material (molecular formula C16H11FN2O2, MW 282.27 g/mol) for analytical method development and quality control.
Based on its molecular formula C16H11FN2O2, 4-[5-(4-Fluorophenyl)-1H-pyrazol-1-yl]benzoic 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 282.27 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C16H11FN2O2 |
| Molecular Weight | 282.27 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 DMSO, DMF, methanol |
| 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) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 2 |
Related Fluorophenyl Standards
- 2-(4-fluorophenyl)-3-(2-nitrovinyl)-1H-indole (CAS 113963-70-5)
- 1-(2-Fluorophenyl)-3-phenyl-1h-pyrazole-5-carboxylic acid (CAS 618102-02-6)
- 1-(4-Fluorophenyl)-3-phenyl-1H-pyrazole-5-carboxylic acid (CAS 618101-93-2)
- 1-(4-Fluorophenyl)-5-phenyl-1H-pyrazole-3-carboxylic acid (CAS 477712-40-6)
- 2-[1-(3-Fluorophenyl)-1H-pyrazole-4-carbonyl]phenol (CAS 956624-10-5)
- 3-(4-Fluorophenyl)-1-phenyl-1H-pyrazole-4-carboxylic acid (CAS 370098-34-3)
- 3-(4-Fluorophenyl)-1-phenyl-1H-pyrazole-5-carboxylic acid (CAS 618102-72-0)
- 5-(4-Fluorophenyl)-1-hydroxy-3-phenylpyrazin-2(1H)-one (CAS 339011-41-5)
Recommended Standards
- 4-(4-Fluorobenzylidene)-1-phenylpyrazolidine-3,5-dione (CAS 77738-02-4)
- 5-(2-Morpholin-4-yl-ethylamino)-naphthalene-1-sulfonic acid (CAS 824413-74-3)
- 3-[(5-methyl-1,2-oxazol-3-yl)sulfamoyl]benzoic acid (CAS 851116-24-0)
- 5-(3-Fluoro-4-methoxyphenyl)-6-methylpyrazolo[1,5-a]pyrimidine-3-carbonitrile (CAS 861210-18-6)
- 2-(Pyrimidin-2-yl)-1,3-thiazole-4-carbaldehyde (CAS 1178019-16-3)
- 3-Amino-1-(1,5-dimethyl-1h-pyrazol-3-yl)propan-1-ol (CAS 1312139-56-2)
- 3-(4-Chlorophenyl)propiolic acid (CAS 3240-10-6)
- 6-Carboxy-2,3-difluorophenylboronic acid (CAS 2377609-91-9)
- 5-[(4-hydroxyphenyl)methyl]imidazolidine-2,4-dione (CAS 58942-04-4)
- 3-Cyclopropoxy-2-isopropylbenzenesulfonamide (CAS 1243460-18-5)
- Ethyl 2-(3-chloro-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenoxy)acetate (CAS 1218789-47-9)
- 2-(3,4-Dimethoxyphenyl)-5,7-dihydroxy-4H-chromen-4-one (CAS 4712-12-3)
- Ethyl 6-chloro-5-methylpyrimidine-4-carboxylate (CAS 1232059-52-7)
- Semaglutide Impurity 158 (x TFA Salt) (CAS CATO-C4X-2226158)
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