3-(3-Bromophenyl)pyrazole CAS 149739-65-1
| CAS No. | 149739-65-1 |
| Molecular Formula | C9H7BrN2 |
| Molecular Weight | 223.07 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
3-(3-Bromophenyl)pyrazole (CAS 149739-65-1), molecular formula C9H7BrN2 and molecular weight 223.07 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 3-(3-Bromophenyl)pyrazole (C9H7BrN2) is characterized by a nitrogen-containing heterocyclic scaffold, a nitrile group, bromine substitution. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, 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).
As a certified reference material (CRM), 3-(3-Bromophenyl)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 | C9H7BrN2 |
| Molecular Weight | 223.07 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.) | 1999 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 2 |
Related Bromophenyl Standards
- 1-(4-Bromophenyl)-1H-imidazole (CAS 10040-96-7)
- 3-(2-Bromophenyl)-1h-pyrazole (CAS 114382-20-6)
- 4-(2-Bromophenyl)-1h-pyrazole (CAS 1260795-26-3)
- 2-(4-Bromophenyl)furan (CAS 14297-34-8)
- 2-(2-Bromophenyl)imidazole (CAS 162356-38-9)
- 1-(2-Bromophenyl)-1H-imidazole (CAS 190198-35-7)
- 1-(2-Bromophenyl)-2,3-butadien-1-one (CAS 196953-04-5)
- 1-(3-Bromophenyl)-2,3-butadien-1-one (CAS 196953-06-7)
Recommended Standards
- methyl 2-bromo-1-methyl-imidazole-4-carboxylate (CAS 1467728-93-3)
- 2-(6-bromopyridazin-3-yl)acetic acid (CAS 1502103-76-5)
- 5-Bromoindoline-6-carbonitrile (CAS 1467060-12-3)
- 5-Bromo-2-methyl-1,8-naphthyridine (CAS 1505030-48-7)
- N-(3-isopropylphenyl)tetrahydrothiophen-3-amine (CAS 1042566-72-2)
- 4-Acetyl-6-(trifluoromethyl)picolinonitrile (CAS 1393543-39-9)
- L-Mimosine (CAS 500-44-7)
- N1,N1-Diethyl-N2-((1-methyl-1H-pyrazol-3-yl)methyl)ethane-1,2-diamine dihydrochloride (CAS 1856041-73-0)
- ethyl 3-amino-3-(3,5-dichlorophenyl)propanoate hydrochloride (CAS 215738-51-5)
- 3-(Chloromethyl)-5-(4-methoxyphenyl)-1,2,4-oxadiazole (CAS 73217-31-9)
- 1-(3-Chlorophenyl)-2-(methylsulfonyl)ethanamine (CAS 1251398-40-9)
- Nemonoxacin Impurity 118 (CAS CATO-C4X-3128118)
- 5-Carbamoylthiophene-2-carboxylic acid (CAS 345992-88-3)
- Macrocyclic Peptide flaviviridae Viruses InhibitorDISCONTINUED (CAS 1510840-70-6)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com