4-Bromo-1-(4-(chloromethyl)phenyl)-1H-pyrazole CAS 1178169-30-6
| CAS No. | 1178169-30-6 |
| Molecular Formula | C10H8BrClN2 |
| Molecular Weight | 271.54 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 271.54 g/mol gives 4-Bromo-1-(4-(chloromethyl)phenyl)-1H-pyrazole distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
4-Bromo-1-(4-(chloromethyl)phenyl)-1H-pyrazole (CAS 1178169-30-6) is a high-purity analytical reference standard with the molecular formula C10H8BrClN2 and a molecular weight of 271.54 g/mol.
Owing to a nitrogen-containing heterocyclic scaffold, a nitrile group, chlorine/bromine substitution, 4-Bromo-1-(4-(chloromethyl)phenyl)-1H-pyrazole is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 271.54 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures 4-Bromo-1-(4-(chloromethyl)phenyl)-1H-pyrazole under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C10H8BrClN2 |
| Molecular Weight | 271.54 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, 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.) | 1989 |
| Halogen Content | Cl/Br-containing |
| Nitrogen Atoms | 2 |
Related Bromo Standards
- 4-Bromo-1-[(4-chlorophenyl)methyl]-1h-pyrazole (CAS 1006538-60-8)
- 3-Bromo-7-chloro-2,4-dimethyl-1,8-naphthyridine (CAS 1021117-08-7)
- 1-(2-Bromo-5-chlorophenyl)-3-methyl-1H-pyrazole (CAS 1125828-26-3)
- 1-(2-Bromo-5-chlorophenyl)-5-methyl-1H-pyrazole (CAS 1125828-28-5)
- 3-Bromo-8-chloro-2-methylquinolin-4-amine (CAS 1333256-71-5)
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Recommended Standards
- 3-(3-bromophenyl)-4-chloro-5-methyl-1H-pyrazole (CAS 1257858-65-3)
- 2,4,8-Trichlorodibenzofuran (CAS 54589-71-8)
- 2,6,7-Trichlorodibenzofuran (CAS 83704-45-4)
- 5-Bromo-1-(4-chlorobenzyl)-1H-pyrazole (CAS 1427011-70-8)
- 2-Amino-3-(pyridin-4-yl)propan-1-ol (CAS 348619-90-9)
- (3-Amino-4,6-dimethylfuro[2,3-b]pyridin-2-yl)(4-chlorophenyl)methanone (CAS 260549-57-3)
- 2,3-Dichloro-6-methoxyquinoxaline (CAS 39267-04-4)
- 1-(6-(Trifluoromethyl)pyrazin-2-yl)ethan-1-ol (CAS 2833706-80-0)
- Furosemide Amide Impurity (CAS 4793-47-9)
- 2-((5-Chloro-2-methylquinolin-8-yl)oxy)acetonitrile (CAS 88757-48-6)
- (2R,3R,4S,5R)-2-(6-Amino-9H-purin-9-yl)-5-((R)-1-hydroxyethyl)tetrahydrofuran-3,4-diol (CAS 3253-81-4)
- Methacryloylacetone (CAS 20583-46-4)
- Gypenoside A (CAS 157752-01-7)
- β-Bag Cell Peptide (Aplysia californica) (CAS 109024-47-7)
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