1-(4-Fluorophenyl)-3-(4-methoxyphenyl)-1H-pyrazol-5-ol CAS 1006583-02-3
| CAS No. | 1006583-02-3 |
| Molecular Formula | C16H13FN2O2 |
| Molecular Weight | 284.29 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 1-(4-Fluorophenyl)-3-(4-methoxyphenyl)-1H-pyrazol-5-ol 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.
1-(4-Fluorophenyl)-3-(4-methoxyphenyl)-1H-pyrazol-5-ol (CAS 1006583-02-3) is a high-purity analytical reference standard with the molecular formula C16H13FN2O2 and a molecular weight of 284.29 g/mol.
Based on its molecular formula C16H13FN2O2, 1-(4-Fluorophenyl)-3-(4-methoxyphenyl)-1H-pyrazol-5-ol 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 284.29 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.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C16H13FN2O2 |
| Molecular Weight | 284.29 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) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1988 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 2 |
Related Fluorophenyl Standards
- 1'-ethyl-1-(2-fluorophenyl)-1h,1'h-3,4'-bipyraZole-4-carbaldehyde (CAS 1006323-09-6)
- 1-(4-fluorophenyl)-1',3'-dimethyl-1h,1'h-3,4'-bipyraZole-4-carbaldehyde (CAS 1006334-20-8)
- 1-(2-fluorophenyl)-1',3'-dimethyl-1h,1'h-3,4'-bipyraZole-4-carbaldehyde (CAS 1006336-67-9)
- Ethyl 6-(2-fluorophenyl)imidazo[1,2-a]pyridine-2-carboxylate (CAS 1170572-92-5)
- Ethyl 6-(4-fluorophenyl)pyrazolo[1,5-a]pyridine-3-carboxylate (CAS 1207557-16-1)
- 4-(4-Fluorophenyl)-N-(furan-2-ylmethyl)-1H-pyrrole-2-carboxamide (CAS 1219841-84-5)
- 1-(2-Fluorophenyl)-5-phenyl-4,5-dihydro-1h-pyrazole-3-carboxylic acid (CAS 1264041-70-4)
- 1-(4-Fluorophenyl)-5-phenyl-4,5-dihydro-1h-pyrazole-3-carboxylic acid (CAS 1264042-71-8)
Recommended Standards
- 6-(1,1-Dioxo-1lambda6-thiomorpholine-4-carbonyl)pyridine-2-carboxylic acid (CAS 1155538-89-8)
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- tert-butyl 6-amino-6-(trifluoromethyl)-1,4-oxazepane-4-carboxylate (CAS 2306270-23-3)
- Methyl 1-(4-fluorobenzyl)-1H-indazole-3-carboxylate (CAS 1185287-50-6)
- N-mesityl-2-((4-(p-tolyl)-5-((p-tolylamino)methyl)-4H-1,2,4-triazol-3-yl)thio)acetamide (CAS 335217-91-9)
- 4-(4-Tetrahydropyranyl)aniline (CAS 62071-40-3)
- 4-((6-Amino-2,4-dioxo-1-propyl-1,2,3,4-tetrahydropyrimidin-5-yl)(2-methoxyethyl)amino)-4-oxobutanoic acid (CAS 743442-04-8)
- tert-Butyl 4-(azetidin-3-yl)piperazine-1-carboxylate hydrochloride (CAS 178312-58-8)
- 2-Methoxybenzo[d][1,3]dioxol-4-ol (CAS 61627-36-9)
- 4,5Alpha-Epoxy Eplerenone (CAS 209253-73-6)
- 3-(Pyridin-3-ylmethyl)indolin-2-one (CAS 3367-85-9)
- Tubocurarine Chloride Pentahydrate (CAS 6989-98-6)
- 4-(Bromodifluoromethyl)-1-(difluoromethyl)-benzene (CAS 2250-36-4)
- Semaglutide impurity 28 (CAS CATO-C4X-222628)
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