1-(tert-Butyl)-4-phenyl-3-(trifluoromethyl)-1H-pyrazole CAS 256414-73-0
| CAS No. | 256414-73-0 |
| Molecular Formula | C14H15F3N2 |
| Molecular Weight | 268.28 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
1-(tert-Butyl)-4-phenyl-3-(trifluoromethyl)-1H-pyrazole (CAS 256414-73-0), molecular formula C14H15F3N2 and molecular weight 268.28 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C14H15F3N2, 1-(tert-Butyl)-4-phenyl-3-(trifluoromethyl)-1H-pyrazole contains a nitrogen-containing heterocyclic scaffold, a nitrile group, fluorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 268.28 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 1-(tert-Butyl)-4-phenyl-3-(trifluoromethyl)-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 | C14H15F3N2 |
| Molecular Weight | 268.28 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 2 |
Recommended Standards
- 1-(Prop-2-yn-1-yl)-4-[3-(trifluoromethyl)phenyl]piperazine (CAS 94361-05-4)
- 1-Boc-4-(2,2,2-trifluoroethyl)piperazine (CAS 692058-21-2)
- 1-(3,4-Difluorophenyl)-2-((1-methyl-1h-imidazol-2-yl)thio)ethan-1-one (CAS 244278-76-0)
- 2'-(2-Fluorophenyl)-2,4-dihydrospiro[1-benzopyran-3,1'-cyclopropane]-4-one (CAS 477864-18-9)
- (-)-Isoborneolacetic acid 2-((1R,2S,3R,4R)-3-hydroxy-1,4,7,7-tetramethylbicyclo[2.2.1]heptan-2-yl)acetic acid 81925-04-4 (CAS 81925-04-4)
- Methyl (2S)-1-(2-methoxy-2-oxoethyl)pyrrolidine-2-carboxylate (CAS 480453-61-0)
- 14-(4-Chlorophenyl)-14H-benzo[7,8]chromeno[3,2-e][1,2,4]triazolo[1,5-c]pyrimidine-2(3H)-thione (CAS 1243382-80-0)
- N-(2-Chlorobenzyl)-2-(3-methylphenoxy)-1-butanamine (CAS 1040684-55-6)
- (1-(Hydroxymethyl)cyclobutyl)methyl 4-methylbenzenesulfonate (CAS 2803283-13-6)
- (3-Formyl-4-hydroxyphenyl)boronic acid (CAS 182344-24-7)
- 4-Bromo-5-fluoro-2-(trifluoromethyl)aniline (CAS 1805503-76-7)
- Isoliquiritin (CAS 5041-81-6)
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- Semaglutide impurity 249 (CAS CATO-C4X-2226249)
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