5-Bromo-1-(2-fluorophenyl)-1H-pyrazole-4-carbonitrile CAS 1269291-70-4
| CAS No. | 1269291-70-4 |
| Molecular Formula | C10H5BrFN3 |
| Molecular Weight | 266.07 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures 5-Bromo-1-(2-fluorophenyl)-1H-pyrazole-4-carbonitrile 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.
5-Bromo-1-(2-fluorophenyl)-1H-pyrazole-4-carbonitrile (CAS 1269291-70-4) is a high-purity analytical reference standard with the molecular formula C10H5BrFN3 and a molecular weight of 266.07 g/mol.
Owing to a nitrogen-containing heterocyclic scaffold, a nitrile group, fluorine/bromine substitution, 5-Bromo-1-(2-fluorophenyl)-1H-pyrazole-4-carbonitrile is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 266.07 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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.
Physical & Chemical Properties
| Molecular Formula | C10H5BrFN3 |
| Molecular Weight | 266.07 g/mol |
| Appearance | Pale yellow to 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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
| Halogen Content | F/Br-containing |
| Nitrogen Atoms | 3 |
Related Bromo Standards
- 2-Bromo-N-(5-nitrothiazol-2-yl)acetamide (CAS 349121-09-1)
- Methyl 4-bromo-5-nitrothiophene-2-carboxylate (CAS 31862-80-3)
- Methyl 5-Bromo-3-nitrothiophene-2-carboxylate (CAS 99839-45-9)
- Methyl 5-bromo-4-nitrothiophene-2-carboxylate (CAS 38239-32-6)
- 5-bromo-2-(trifluoromethyl)-2,3-dihydro-1H-indole (CAS 1391226-48-4)
- 4-Bromo-2-(1-(trifluoromethyl)cyclopropyl)pyridine (CAS 1395492-90-6)
- 5-Bromo-2-(1-(trifluoromethyl)cyclopropyl)pyridine (CAS 1431616-44-2)
- 5-Bromo-6-(trifluoromethyl)isoindoline (CAS 2688735-13-7)
Recommended Standards
- 3-Trifluoromethyl-1<I>H</I>-pyrazole-4-boronic acid pinacol ester (CAS 1218790-40-9)
- 1-(4-Bromophenyl)-5-fluoro-1H-pyrazole-4-carbonitrile (CAS 1269293-06-2)
- 2-(2-Iodophenyl-d (CAS 1217360-62-7)
- 3-Carboxy-2-fluorobenzeneboronic acid pinacol ester, 97% (CAS 1373168-89-8)
- Retigabine (Ezogabine) DiHCl (CAS 150812-13-8)
- (2,3-Difluoro-5-isopropoxyphenyl)boronic acid (CAS 1960405-52-0)
- 3,5-Dichloro-1-phenethylpyrazin-2(1H)-one (CAS 138610-68-1)
- 1-(methylamino)cyclobutane-1-carboxylic acid (CAS 1251391-67-9)
- 6-Amino-2-methyl-3,4-dihydro-2H-1,4-benzoxazin-3-one (CAS 105807-80-5)
- 1,4-Diamino-6-chloro-2-propoxyanthracene-9,10-dione (CAS 88605-41-8)
- 2-Amino-1-(2-fluoro-4-methylphenyl)-4,5-dimethyl-1H-pyrrole-3-carbonitrile (CAS 1094439-41-4)
- N-(4-Chlorobenzyl)-5-((4-fluorobenzyl)oxy)-4-oxo-4H-pyran-2-carboxamide (CAS 1021060-52-5)
- (S)-2-((tert-Butoxycarbonyl)(methyl)amino)-2-cyclopropylacetic acid (CAS 1202452-81-0)
- endo-Gly31-Semaglutide (CAS CATO-C4X-2226282)
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