2-(3-(3-Bromophenyl)-1H-pyrazol-5-yl)-5-methylphenol CAS 423753-91-7
| CAS No. | 423753-91-7 |
| Molecular Formula | C16H13BrN2O |
| Molecular Weight | 329.19 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
2-(3-(3-Bromophenyl)-1H-pyrazol-5-yl)-5-methylphenol (CAS 423753-91-7), molecular formula C16H13BrN2O and molecular weight 329.19 g/mol, is a CATO reference standard with documented purity and traceability.
2-(3-(3-Bromophenyl)-1H-pyrazol-5-yl)-5-methylphenol (C16H13BrN2O) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, bromine substitution. Halogen substitution raises its density and boiling point, its high carbon-to-hydrogen ratio confers good lipid solubility; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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 | C16H13BrN2O |
| Molecular Weight | 329.19 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| 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.) | 2025 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 2 |
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Recommended Standards
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- (S)-1-(6-Iodopyridin-3-yl)ethan-1-amine (CAS 1213176-61-4)
- (3-Bromophenyl)(cyclopentyl)methanamine (CAS 1029593-01-8)
- 3-(4-fluorophenyl)-2-(2-pyridyl)oxirane-2-carboxamide (CAS 278610-35-8)
- Methyl 3-(2-methoxyethoxy)-2,2-dimethylpropanoate (CAS 1218915-70-8)
- 1-(4-methylphenyl)-3-(trifluoromethyl)-1H-pyrazol-5-amine (CAS 1188909-74-1)
- N-(2-Bromo-5-(tert-butyl)-4-chlorophenyl)acetamide (CAS 2416992-18-0)
- 2-(2,6-Diaminophenyl)ethanol (CAS 118742-89-5)
- 2-Oxo-6-(thiophen-2-yl)-1,2-dihydropyrimidine-4-carboxylic acid (CAS 1018605-23-6)
- Peptide 431 (CAS CATO-CPTD788431)
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