1,3-Bis(4-fluorophenyl)-1H-pyrazol-5-amine CAS 72411-57-5
| CAS No. | 72411-57-5 |
| Molecular Formula | C15H11F2N3 |
| Molecular Weight | 271.26 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 1,3-Bis(4-fluorophenyl)-1H-pyrazol-5-amine 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.
1,3-Bis(4-fluorophenyl)-1H-pyrazol-5-amine (CAS 72411-57-5) is a high-purity analytical reference standard with the molecular formula C15H11F2N3 and a molecular weight of 271.26 g/mol.
Based on its molecular formula C15H11F2N3, 1,3-Bis(4-fluorophenyl)-1H-pyrazol-5-amine contains a nitrogen-containing heterocyclic scaffold, a nitrile group, fluorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 271.26 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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.
Physical & Chemical Properties
| Molecular Formula | C15H11F2N3 |
| Molecular Weight | 271.26 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, 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 |
| Degree of Unsaturation (DBE) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1977 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 3 |
Related Bis Standards
- 1-(2-Fluorophenyl)-3-(4-fluorophenyl)-1h-pyrazol-5-amine (CAS 956332-00-6)
- 1,4-Bis(4-fluorophenyl)-1H-pyrazol-5-amine (CAS 664966-78-3)
- 1-(2-Fluorophenyl)-6-methyl-1H-pyrazolo[3,4-b]pyridine-4-carboxylic acid (CAS 1011397-25-3)
- 1-(4-Fluorophenyl)-6-methyl-1h-pyrazolo[3,4-b]pyridine-4-carboxylic acid (CAS 1011397-72-0)
- 1015873-61-6 1-(4-Fluorophenyl)-5-(1H-pyrrol-1-yl)-1H-pyrazole-4-carboxylic acid MFCD09863281 (CAS 1015873-61-6)
- 1-(2-Fluorophenyl)-5-(1H-pyrrol-1-yl)-1H-pyrazole-4-carboxylic acid (CAS 1172017-52-5)
- 3-(4-Fluorophenyl)-5-(6-hydrazinylpyridin-3-yl)-1,2,4-oxadiazole (CAS 1325304-32-2)
- 3-(4-Fluorophenyl)-5-(2-hydrazinylpyridin-3-yl)-1,2,4-oxadiazole (CAS 1351398-77-0)
Recommended Standards
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- 3-Ethyl-5-methylisoxazole-4-carbohydrazide (CAS 1094733-72-8)
- (S)-2-Amino-N-cyclopropyl-3-methyl-N-(4-nitrobenzyl)butanamide (CAS 1353995-78-4)
- n-Methyl-1-(quinolin-3-yl)methanamine (CAS 120739-69-7)
- 1-(3-Methyl-1H-indol-4-yl)ethan-1-one (CAS 50614-96-5)
- 4-(3-Chloro-4-((2,6-dichlorobenzyl)oxy)-5-methoxybenzylidene)-1-phenylpyrazolidine-3,5-dione (CAS 5824-74-8)
- [D-Phe22]Semaglutide (CAS CATO-C4X-2226222)
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