5-Amino-4-bromo-3-methyl-1-phenylpyrazole CAS 69464-98-8
| CAS No. | 69464-98-8 |
| Molecular Formula | C10H10BrN3 |
| Molecular Weight | 252.11 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Owing to a nitrogen-containing heterocyclic scaffold, a nitrile group, bromine substitution, 5-Amino-4-bromo-3-methyl-1-phenylpyrazole is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 252.11 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
5-Amino-4-bromo-3-methyl-1-phenylpyrazole (CAS 69464-98-8) is a high-purity analytical reference standard with the molecular formula C10H10BrN3 and a molecular weight of 252.11 g/mol.
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.
As a certified reference material (CRM), 5-Amino-4-bromo-3-methyl-1-phenylpyrazole 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.
Physical & Chemical Properties
| Molecular Formula | C10H10BrN3 |
| Molecular Weight | 252.11 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor) |
| 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1976 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 3 |
Related Amino Standards
- 3-Amino-5-(2-bromophenyl)-2-methylpyrazole (CAS 1152708-91-2)
- 5-Amino-3-(4-bromophenyl)-1-methylpyrazole (CAS 126417-84-3)
- 3-Amino-4-(4-bromophenyl)-1-methylpyrazole (CAS 1782569-25-8)
- ethyl 4-amino-2-bromo-1-methyl-1H-imidazole-5-carboxylate (CAS 1936062-85-9)
- 6-Amino-5-bromopyridine-3-sulfonamide (CAS 1023816-98-9)
- 4-Amino-5-bromopyridine-3-sulfonamide (CAS 1352483-46-5)
- 3-Amino-5-bromobenzenesulfonic acid (CAS 1375474-43-3)
- 5-Amino-2-bromobenzenesulfonic acid (CAS 150454-14-1)
Recommended Standards
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- 5-(4-Bromophenyl)-3,4-dimethylisoxazole (CAS 879884-50-1)
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- 3,6-Diamino-7-methylquinoxaline-2-carboxylic acid (CAS 817165-71-2)
- (5-(1-Phenoxyethyl)-1H-pyrazol-1-yl)(phenyl)methanone (CAS 324008-77-7)
- 2-Amino-6-chloro-N-(2-methoxyethyl)-4-oxo-4H-chromene-3-carboxamide (CAS 883279-34-3)
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