3,5-Bis(3-bromophenyl)-1H-pyrazole CAS 1004309-35-6
| CAS No. | 1004309-35-6 |
| Molecular Formula | C15H10Br2N2 |
| Molecular Weight | 378.06 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 3,5-Bis(3-bromophenyl)-1H-pyrazole (CAS 1004309-35-6), a certified reference material (molecular formula C15H10Br2N2, MW 378.06 g/mol) for analytical method development and quality control.
The molecular framework of 3,5-Bis(3-bromophenyl)-1H-pyrazole (C15H10Br2N2) 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. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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), 3,5-Bis(3-bromophenyl)-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 | C15H10Br2N2 |
| Molecular Weight | 378.06 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-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) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1988 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 2 |
Related Bis Standards
- 4,5-Bis(4-bromophenyl)-1H-imidazole (CAS 100965-13-7)
- 2,5-Bis(4-bromophenyl)furan (CAS 36710-35-7)
- 3,5-Bis(4-bromophenyl)-1h-pyrazole (CAS 21399-30-4)
- 2-(4-Bromophenyl)-3-hydroxy-5,7-dimethoxy-4H-pyrano[3,2-c]pyridin-4-one (CAS 2098196-76-8)
- 4-((4-Bromophenyl)thio)-N,N-dimethyl-6-(trifluoromethyl)pyrimidin-2-amine (CAS 338792-30-6)
- 4-((4-Bromophenyl)thio)-N-ethyl-6-(trifluoromethyl)pyrimidin-2-amine (CAS 339010-88-7)
- N-(4-bromophenyl)-2-(2-ethoxy-4-formylphenoxy)acetamide (CAS 247592-79-6)
- 400084-52-8 5M-902 8-[(4-bromophenyl)methyl]-1,3-dimethyl-1H,2H,3H,4H,5H,6H,7H,8H-pyrido[2,3-d]pyrimidine-2,4,7-trione (CAS 400084-52-8)
Recommended Standards
- N-(2-Bromoethyl)-3-(2,6-dichlorophenyl)-5-methylisoxazole-4-carboxamide (CAS 218456-06-5)
- 4-Bromo-5-((3,4-dichlorobenzyl)oxy)-2-ethylpyridazin-3(2H)-one (CAS 88094-62-6)
- BDTO-2Br (CAS 196491-93-7)
- 5-Bromomethyl-1-(2,6-dichloro-phenyl)-1H-pyrazole-3-carboxylic acid ethyl ester (CAS 1033586-30-9)
- Ethyl 5-bromo-4-oxo-1,4-dihydroquinoline-3-carboxylate (CAS 868375-04-6)
- (2-(3-Methylpiperidin-1-yl)pyridin-4-yl)methanamine (CAS 953717-75-4)
- Methyl 4-((bis(2-methoxyethyl)amino)methyl)benzoate (CAS 1057489-72-1)
- Bromfenac Impurity N17 (CAS 70803-94-0)
- (s)-1-(2-Bromobenzyl)pyrrolidin-3-amine dihydrochloride (CAS 1286207-18-8)
- 5-Ethynyl-1,2-difluoro-3-methoxybenzene (CAS 2305621-55-8)
- Ethyl cis-2-methylpiperidine-3-carboxylate (CAS 110287-64-4)
- 2-((3-Bromophenyl)amino)-4-methylthiazole-5-carboxylic acid (CAS 1071328-75-0)
- 1-Benzyl-6-chloro-1H-benzo[c][1,2]thiazin-4(3H)-one 2,2-dioxide (CAS 1255783-37-9)
- Semaglutide Impurity 11 (CAS CATO-C4X-222611)
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