2-(5-Methyl-1H-pyrazol-1-yl)-5-(trifluoromethyl)aniline CAS 923945-90-8
| CAS No. | 923945-90-8 |
| Molecular Formula | C11H10F3N3 |
| Molecular Weight | 241.21 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 2-(5-Methyl-1H-pyrazol-1-yl)-5-(trifluoromethyl)aniline.
2-(5-Methyl-1H-pyrazol-1-yl)-5-(trifluoromethyl)aniline (CAS 923945-90-8), molecular formula C11H10F3N3 and molecular weight 241.21 g/mol, is a CATO reference standard with documented purity and traceability.
2-(5-Methyl-1H-pyrazol-1-yl)-5-(trifluoromethyl)aniline (C11H10F3N3) contains a nitrogen-containing heterocyclic scaffold, a nitrile group, fluorine substitution. Halogen substitution raises its density and boiling point, its high carbon-to-hydrogen ratio confers good lipid solubility; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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.
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 | C11H10F3N3 |
| Molecular Weight | 241.21 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.) | 1987 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 3 |
Recommended Standards
- 2-(3-Methyl-1H-pyrazol-1-yl)-5-(trifluoromethyl)aniline (CAS 923945-89-5)
- 2,2,2-Trifluoro-1-(2-phenyl-4,5-dihydro-1H-pyrrol-3-yl)ethanone (CAS 952959-35-2)
- 2-(3,5-Dimethyl-1H-pyrazol-1-yl)-3-(trifluoromethyl)pyridine (CAS 477711-20-9)
- 2,3-Dimethyl-6-(trifluoromethyl)quinolin-4-ol (CAS 217074-30-1)
- 2-(4-(4-Fluorophenyl)piperidin-1-yl)ethan-1-amine (CAS 944907-01-1)
- 3-Amino-3-(hydroxyimino)-N-(4-morpholinophenyl)propanamide (CAS 793727-57-8)
- H-Ala-His-Ala-OH (CAS 146321-25-7)
- 4-Chloro-N'-[3-(trifluoromethyl)quinoxalin-2-yl]benzohydrazide (CAS 338773-48-1)
- (2,3-Difluorophenyl)(3-methylpyridin-2-yl)methanone (CAS 1187171-21-6)
- 4-Bromo-N-(4-bromobenzyl)benzamide (CAS 670229-48-8)
- (3AR,4R,5R,6aS)-4-((S,E)-3-Hydroxy-5-phenylpent-1-en-1-yl)-2-oxohexahydro-2H-cyclopenta[b]furan-5-yl benzoate (CAS 55444-68-3)
- 4-Amino-5-chloro-6-(difluoromethyl)picolinaldehyde (CAS 1803668-27-0)
- 7-(4-Ethoxyphenyl)-4-methyl-2-(methylthio)-6,7-dihydro-5H-pyrrolo[2,3-d]pyrimidine (CAS 338416-18-5)
- Galanin-Like Peptide (human) trifluoroacetate salt (CAS 245114-99-2)
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