1-(3-Bromophenyl)-3-methyl-1H-pyrazole CAS 70583-75-4
| CAS No. | 70583-75-4 |
| Molecular Formula | C10H9BrN2 |
| Molecular Weight | 237.10 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C10H9BrN2, 1-(3-Bromophenyl)-3-methyl-1H-pyrazole contains a nitrogen-containing heterocyclic scaffold, a nitrile group, bromine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 237.10 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
CATO supplies 1-(3-Bromophenyl)-3-methyl-1H-pyrazole (CAS 70583-75-4), a certified reference material (molecular formula C10H9BrN2, MW 237.10 g/mol) for analytical method development and quality control.
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), 1-(3-Bromophenyl)-3-methyl-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 | C10H9BrN2 |
| Molecular Weight | 237.10 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.) | 1977 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 2 |
Related Bromophenyl Standards
- 2-(3-Bromophenyl)-4-methyl-1H-imidazole (CAS 114748-87-7)
- 1-(3-bromophenyl)-4-methyl-1H-pyrazole (CAS 1183715-73-2)
- 1-(4-bromophenyl)-4-methyl-1h-pyraZole (CAS 1184673-82-2)
- 2-(4-Bromophenyl)-4-methyl-1H-imidazole (CAS 1187927-85-0)
- 4-(4-Bromophenyl)-1-methyl-1H-pyrazole (CAS 1191616-45-1)
- 5-(3-Bromophenyl)-1-methylimidazole (CAS 1218910-50-9)
- 1-(4-Bromophenyl)-5-methyl-1H-pyrazole (CAS 1227958-63-5)
- 1-[(3-bromophenyl)methyl]-1h-pyrazole (CAS 1247393-02-7)
Recommended Standards
- 1-(3-Bromobenzyl)-1H-imidazole (CAS 72459-47-3)
- 1-(4-Bromo-3-methylphenyl)-1H-pyrazole (CAS 858523-45-2)
- 1-(2-Bromobenzyl)-1H-imidazole (CAS 72459-45-1)
- 1-(4-Bromobenzyl)imidazole (CAS 72459-46-2)
- 2,5-dibromo-3,4-di-tert-butylthiophene (CAS 118888-11-2)
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