3-Methyl-5-(trifluoromethyl)-1H-pyrazol-4-amine CAS 855343-08-7
| CAS No. | 855343-08-7 |
| Molecular Formula | C5H6F3N3 |
| Molecular Weight | 165.12 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-Methyl-5-(trifluoromethyl)-1H-pyrazol-4-amine (CAS 855343-08-7), molecular formula C5H6F3N3 and molecular weight 165.12 g/mol, is a CATO reference standard with documented purity and traceability.
3-Methyl-5-(trifluoromethyl)-1H-pyrazol-4-amine (C5H6F3N3) 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).
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C5H6F3N3 |
| Molecular Weight | 165.12 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 | 3 |
Related Methyl Standards
- 1-Methyl-5-(trifluoromethyl)-1H-pyrazol-3-amine (CAS 149978-42-7)
- 2-Methyl-5-trifluoromethyl-2H-pyrazol-3-ylamine (CAS 149978-43-8)
- [2-(trifluoromethyl)-1H-imidazol-5-yl]methanamine (CAS 1545471-76-8)
- 1-Methyl-5-(trifluoromethyl)-1H-pyrazol-4-amine (CAS 161038-64-8)
- (1-(Trifluoromethyl)-1H-pyrazol-4-yl)methanamine (CAS 1706440-17-6)
- (5-(Trifluoromethyl)-1H-imidazol-2-yl)methanamine (CAS 944898-11-7)
- 1-Methyl-4-(trifluoromethyl)-1H-imidazol-2-amine (CAS 2109509-60-4)
- 4-Methyl-5-(trifluoromethyl)-1H-pyrazol-3-amine (CAS 261528-47-6)
Recommended Standards
- 3-Fluorobenzoyl isocyanate (CAS 78469-21-3)
- 4-Ethynyl-2-fluoro-1-nitrobenzene (CAS 2229532-54-9)
- 3-Cyano-5-fluorobenzoic Acid (CAS 327056-74-6)
- 4-Fluoro-DL-glutamic Acid (CAS 2708-77-2)
- 5-(Trifluoromethyl)quinolin-3-amine (CAS 2168449-89-4)
- (R)-1-Phenylethanaminium (S)-2-chloro-2-fluoroacetate (CAS 166171-53-5)
- 5,7-Difluoroquinazoline (CAS 1823347-06-3)
- 4-(4-Chlorophenyl)isoquinoline (CAS 1024438-75-2)
- 2-Chloroethyl [(4-methylphenyl)amino](oxo)acetate (CAS 1192804-63-9)
- 2-(Bromomethyl)-4-fluoro-1-nitrobenzene (CAS 82420-35-7)
- Pamoic Acid (CAS 130-85-8)
- 2-Phenoxy-N-((4-phenyltetrahydro-2H-pyran-4-yl)methyl)propanamide (CAS 1208926-26-4)
- 1-(4-Fluoropiperidin-4-yl)-N,N-dimethylmethanamine dihydrochloride (CAS 2306264-65-1)
- Pancreatic Polypeptide (rat) (CAS 90419-12-8)
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