4-Bromo-1-(3-chlorophenyl)-5-(trifluoromethyl)-1H-pyrazole CAS 918339-65-8
| CAS No. | 918339-65-8 |
| Molecular Formula | C10H5BrClF3N2 |
| Molecular Weight | 325.51 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 4-Bromo-1-(3-chlorophenyl)-5-(trifluoromethyl)-1H-pyrazole (CAS 918339-65-8), a certified reference material (molecular formula C10H5BrClF3N2, MW 325.51 g/mol) for analytical method development and quality control.
Based on its molecular formula C10H5BrClF3N2, 4-Bromo-1-(3-chlorophenyl)-5-(trifluoromethyl)-1H-pyrazole contains a nitrogen-containing heterocyclic scaffold, a nitrile group, fluorine/chlorine/bromine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 325.51 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 4-Bromo-1-(3-chlorophenyl)-5-(trifluoromethyl)-1H-pyrazole 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 | C10H5BrClF3N2 |
| Molecular Weight | 325.51 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Halogen Content | F/Cl/Br-containing |
| Nitrogen Atoms | 2 |
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