1-((2-Fluorophenoxy)methyl)-1H-pyrazole-3-carboxylic acid CAS 1005662-40-7
| CAS No. | 1005662-40-7 |
| Molecular Formula | C11H9FN2O3 |
| Molecular Weight | 236.20 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
1-((2-Fluorophenoxy)methyl)-1H-pyrazole-3-carboxylic acid (CAS 1005662-40-7) is a high-purity analytical reference standard with the molecular formula C11H9FN2O3 and a molecular weight of 236.20 g/mol.
Based on its molecular formula C11H9FN2O3, 1-((2-Fluorophenoxy)methyl)-1H-pyrazole-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. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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 | 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.) | 1988 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 2 |
Related Fluorophenoxy Standards
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Recommended Standards
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- Silodosin Impurity 18 (CAS 160969-02-8)
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- 2-Chloro-4-(2,2,2-trifluoroethoxy)pyridine (CAS 885277-01-0)
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- N'-[(1E)-{[(2-chloro-6-fluorophenyl)methoxy]amino}methylidene]-2-(5-phenyl-2H-1,2,3,4-tetrazol-2-yl)acetohydrazide (CAS 338791-39-2)
- tert-Butyl 3-(bromomethyl)-1H-indole-1-carboxylate (CAS 96551-21-2)
- (2E)-1-(4-Bromophenyl)-3-(dimethylamino)prop-2-en-1-one 73387-60-7 C11H12BrNO V7537 (CAS 73387-60-7)
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