1-(4-Fluorophenyl)-5-phenylpyrazole CAS 299162-83-7
| CAS No. | 299162-83-7 |
| Molecular Formula | C15H11FN2 |
| Molecular Weight | 238.26 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures 1-(4-Fluorophenyl)-5-phenylpyrazole 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.
CATO supplies 1-(4-Fluorophenyl)-5-phenylpyrazole (CAS 299162-83-7), a certified reference material (molecular formula C15H11FN2, MW 238.26 g/mol) for analytical method development and quality control.
Owing to a nitrogen-containing heterocyclic scaffold, a nitrile group, fluorine substitution, 1-(4-Fluorophenyl)-5-phenylpyrazole is typically pale yellow to yellow low-melting solid. Its solid-state physicochemical attributes — including a molecular weight of 238.26 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 | C15H11FN2 |
| Molecular Weight | 238.26 g/mol |
| 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) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 2 |
Related Fluorophenyl Standards
- N-(4-fluorophenyl)quinolin-4-amine (CAS 1111618-71-3)
- 1-(2-Fluorophenyl)-5-phenyl-1H-pyrazole (CAS 1269291-35-1)
- 1-(3-Fluorophenyl)-5-phenyl-1H-pyrazole (CAS 1269294-32-7)
- N-(3-fluorophenyl)-2-(3-hydroxypyrrolidin-1-yl)acetamide (CAS 1411625-30-3)
- 1-(2-((4-Fluorophenyl)ethynyl)phenyl)ethan-1-one (CAS 1426258-82-3)
- 7-(3-Fluorophenyl)isoquinolin-1-amine (CAS 1449278-31-2)
- 2-(4-(4-Fluorophenyl)piperazin-1-yl)acetic acid (CAS 938261-59-7)
- 2-(4-Fluorophenyl)-2-(piperazin-1-yl)acetic acid (CAS 853681-12-6)
Recommended Standards
- 1-(4-Fluoro-3-nitrobenzyl)piperidine (CAS 509093-74-7)
- 1,8-Dihydro-1-(phenylmethyl)cyclohepta[b]phosphole (CAS 83998-97-4)
- 1-(4-Fluoro-2-nitrophenyl)-4-methylpiperidine (CAS 432523-27-8)
- 1H-benzimidazol-2-yl(methylsulfonyl)acetaldehyde (CAS 923794-30-3)
- 7-Bromo-5-chloro-3,4-dihydroisoquinolin-1(2H)-one (CAS 1601271-36-6)
- Ethyl anthracene-9-carboxylate (CAS 1754-54-7)
- 3-Chloro-4-((2-chloro-4-fluorobenzyl)oxy)-5-methoxybenzaldehyde (CAS 1039843-00-9)
- (3S,3AR,6aS)-2-methyl-3-phenyl-5-[3-(trifluoromethyl)phenyl]-hexahydro-2H-pyrrolo[3,4-d][1,2]oxazole-4,6-dione (CAS 477713-61-4)
- 3-Fluoro-4-(5-methylthiophen-2-yl)benzoic acid (CAS 1349847-02-4)
- 3-(4-Nitrophenyl)-4-phenyl-5-(p-tolyl)-4H-1,2,4-triazole (CAS 62507-56-6)
- Azetidin-3-yl-acetic acid hydrochloride (CAS 952675-30-8)
- 1-(2,4-Difluorophenyl)propan-1-one (CAS 85068-30-0)
- 5-Methyl-4-pyrrolidin-1-yl-thieno[2,3-d]-pyrimidine-6-carboxylic acid (CAS 878657-14-8)
- Semaglutide impurity 237 (CAS CATO-C4X-2226237)
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