1-(4-Bromophenyl)-3-(4-fluorophenyl)-1H-pyrazol-5-amine CAS 72411-56-4
| CAS No. | 72411-56-4 |
| Molecular Formula | C15H11BrFN3 |
| Molecular Weight | 332.17 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.
CATO supplies 1-(4-Bromophenyl)-3-(4-fluorophenyl)-1H-pyrazol-5-amine (CAS 72411-56-4), a certified reference material (molecular formula C15H11BrFN3, MW 332.17 g/mol) for analytical method development and quality control.
The molecular framework of 1-(4-Bromophenyl)-3-(4-fluorophenyl)-1H-pyrazol-5-amine (C15H11BrFN3) is characterized by a nitrogen-containing heterocyclic scaffold, a nitrile group, fluorine/bromine substitution. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 | C15H11BrFN3 |
| Molecular Weight | 332.17 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| 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/Br-containing |
| Nitrogen Atoms | 3 |
Related Bromophenyl Standards
- 3-(4-Bromophenyl)-1-(4-fluorophenyl)-1H-pyrazol-5-amine (CAS 618098-14-9)
- 4-(4-Bromophenyl)-2-(4-fluorophenyl)-4-oxobutanenitrile (CAS 344282-35-5)
- 2-(4-Bromophenyl)-3-oxoisoindoline-4-carboxylic acid (CAS 1048916-54-6)
- 1-(4-Bromophenyl)-5-(1h-pyrrol-1-yl)-1h-pyrazole-4-carboxylic acid (CAS 1224164-73-1)
- 1-(2-Bromophenyl)-5-(1H-pyrrol-1-yl)-1H-pyrazole-4-carboxylic acid (CAS 1232693-52-5)
- (2E)-3-(4-Bromophenyl)-1-(3-nitrophenyl)prop-2-en-1-one (CAS 131497-21-7)
- (2E)-3-(4-Bromophenyl)-1-(4-nitrophenyl)prop-2-en-1-one (CAS 13909-51-8)
- (2E)-3-(3-Bromophenyl)-1-(3-nitrophenyl)prop-2-en-1-one (CAS 1415313-19-7)
Recommended Standards
- (Z)-3-(3-Bromopyridin-1-ium-1-yl)-1,4-dimethoxy-1,4-dioxobut-2-ene-2-thiolate (CAS 2803625-18-3)
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- Methyl 2-bromo-6,7-dimethoxybenzo[d]thiazole-4-carboxylate (CAS 1956325-24-8)
- 2-(6-Bromo-1,3-benzodioxol-5-yl)-1,3-thiazolidine-4-carboxylic acid (CAS 342406-10-4)
- 2-Mercapto-3-phenyl-6-(trifluoromethyl)pyridine (CAS 1214353-84-0)
- 3-(2,4-Dimethoxypyrimidin-5-yl)cyclohexanone (CAS 1956366-42-9)
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- (5-Bromo-7-fluorobenzofuran-2-yl)methanol (CAS 1498609-31-6)
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