| CAS No. | 62537-97-7 |
| Molecular Formula | C12H10BrN5 |
| Molecular Weight | 304.15 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
The occurrence of 4-(4-(4-Bromophenyl)-5-methyl-1H-pyrazol-3-yl)-4H-1,2,4-triazole is closely related to a nitrogen-containing heterocyclic scaffold, a nitrile group, bromine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
4-(4-(4-Bromophenyl)-5-methyl-1H-pyrazol-3-yl)-4H-1,2,4-triazole (CAS 62537-97-7) is a high-purity analytical reference standard with the molecular formula C12H10BrN5 and a molecular weight of 304.15 g/mol.
The molecular framework of 4-(4-(4-Bromophenyl)-5-methyl-1H-pyrazol-3-yl)-4H-1,2,4-triazole (C12H10BrN5) is characterized by a nitrogen-containing heterocyclic scaffold, a nitrile group, bromine substitution. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, 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.
As a certified reference material (CRM), 4-(4-(4-Bromophenyl)-5-methyl-1H-pyrazol-3-yl)-4H-1,2,4-triazole 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.
| Molecular Formula | C12H10BrN5 |
| Molecular Weight | 304.15 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) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1974 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 5 |