3-Bromo-4-methyl-1-phenyl-1H-pyrazole CAS 1700661-39-7
| CAS No. | 1700661-39-7 |
| Molecular Formula | C10H9BrN2 |
| Molecular Weight | 237.10 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The molecular framework of 3-Bromo-4-methyl-1-phenyl-1H-pyrazole (C10H9BrN2) is characterized by a nitrogen-containing heterocyclic scaffold, a nitrile group, bromine substitution. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), 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).
CATO supplies 3-Bromo-4-methyl-1-phenyl-1H-pyrazole (CAS 1700661-39-7), a certified reference material (molecular formula C10H9BrN2, MW 237.10 g/mol) for analytical method development and quality control.
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.
CATO manufactures 3-Bromo-4-methyl-1-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 | 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.) | 1994 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 2 |
Related Bromo Standards
- 4-bromo-2-cyclopropyl-1H-pyrrolo[2,3-b]pyridine (CAS 1014614-11-9)
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Recommended Standards
- 5-Ethyl-3-methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)isoxazole (CAS 1627721-32-7)
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- 3-Bromo-1-(p-tolyl)-1H-pyrazole (CAS 1622841-05-7)
- 2-[(3,5-dichlorophenyl)sulfanyl]acetic acid (CAS 17231-93-5)
- GDP-a-D-Amino Trehalose (CAS CATO-C4X-20409)
- Benzo[d][1,2,3]diazaborinin-1(2H)-ol (CAS 17091-90-6)
- 2-Chloro-N-[(3-fluorophenyl)methyl]-N-methylacetamide (CAS 847744-34-7)
- 1-(4-Methylphenyl)-1H-tetrazole (CAS 25109-04-0)
- S-(1,2-Dichlorovinyl)-Cysteine-13C3-15N (CAS 13419-46-0)
- 8-Methyl-3-(trifluoromethyl)-5,6,7,8-tetrahydro-[1,2,4]triazolo[4,3-a]pyrazine (CAS 611240-66-5)
- 1,1,1,2,2-Pentafluoro-4-iodobutane (CAS 40723-80-6)
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- Semaglutide Impurity 143 (CAS CATO-C4X-2226143)
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