3-Methyl-4-(trifluoromethyl)-1H-pyrazole CAS 864239-61-2
| CAS No. | 864239-61-2 |
| Molecular Formula | C5H5F3N2 |
| Molecular Weight | 150.10 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 3-Methyl-4-(trifluoromethyl)-1H-pyrazole is closely related to a nitrile group, fluorine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
3-Methyl-4-(trifluoromethyl)-1H-pyrazole (CAS 864239-61-2), molecular formula C5H5F3N2 and molecular weight 150.10 g/mol, is a CATO reference standard with documented purity and traceability.
3-Methyl-4-(trifluoromethyl)-1H-pyrazole (C5H5F3N2) contains a nitrile group, fluorine substitution. Halogen substitution raises its density and boiling point; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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).
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.
CATO manufactures 3-Methyl-4-(trifluoromethyl)-1H-pyrazole 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.
Physical & Chemical Properties
| Molecular Formula | C5H5F3N2 |
| Molecular Weight | 150.10 g/mol |
| Appearance | White to pale 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) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1987 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 2 |
Related Methyl Standards
- 3-Methyl-5-(trifluoromethyl)pyrazole (CAS 10010-93-2)
- 4-Methyl-3-(trifluoromethyl)-1h-pyrazole (CAS 153085-14-4)
- 1-Methyl-5-(trifluoromethyl)pyrazole (CAS 153085-15-5)
- 1-Methyl-3-(trifluoromethyl)-1H-pyrazole (CAS 154471-65-5)
- 1-Methyl-4-(trifluoromethyl)-1H-pyrazole (CAS 176214-16-7)
- 1-Methyl-4-(trifluoromethyl)-1H-imidazole (CAS 81769-69-9)
- 1-Methyl-5-(trifluoromethyl)-1H-imidazole (CAS 81769-70-2)
- 2-Methyl-4-(trifluoromethyl)furan (CAS 26431-54-9)
Recommended Standards
- 2-Methyl-4-(trifluoromethyl)imidazole (CAS 33468-67-6)
- 5-Methyl-3-(trifluoromethyl)-1H-pyrazole (CAS 942060-04-0)
- 3-Ethoxy-2-fluoro-3-oxopropanoic acid (CAS 100701-49-3)
- 5-Fluoro-2-formylisonicotinonitrile (CAS 1211534-12-1)
- 2-Oxo-2-(p-tolyl)ethyl 5-bromopicolinate (CAS 865593-56-2)
- 2-[4-(4-Amino-2-methylphenyl)-1-piperazinyl]-1-ethanol (CAS 955368-98-6)
- 2-(Trifluoromethyl)cyclopentan-1-one (CAS 95524-19-9)
- Budesonide Impurity N19 (CAS 3949-79-9)
- Tetrafluoropyridazine (CAS 7627-80-7)
- (R)-3-Amino-3-(naphthalen-2-yl)propanoic acid (CAS 786637-72-7)
- 2-(Chloromethyl)-4-(difluoromethyl)-3-methylpyridine-6-methanol (CAS 1361901-17-8)
- Abemaciclib impurity 107 (CAS 1383745-09-2)
- 2-oxabicyclo[2.2.2]octan-4-ylmethyl 4-methylbenzenesulfonate (CAS 1212021-22-1)
- Semaglutide impurity 95 (CAS CATO-C4X-222695)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com