4-Chloro-3-phenyl-5-(trifluoromethyl)-1H-pyrazole CAS 235106-13-5
| CAS No. | 235106-13-5 |
| Molecular Formula | C10H6ClF3N2 |
| Molecular Weight | 246.62 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 4-Chloro-3-phenyl-5-(trifluoromethyl)-1H-pyrazole.
4-Chloro-3-phenyl-5-(trifluoromethyl)-1H-pyrazole (CAS 235106-13-5), molecular formula C10H6ClF3N2 and molecular weight 246.62 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C10H6ClF3N2, 4-Chloro-3-phenyl-5-(trifluoromethyl)-1H-pyrazole contains a nitrogen-containing heterocyclic scaffold, a nitrile group, fluorine/chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 246.62 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.
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 | C10H6ClF3N2 |
| Molecular Weight | 246.62 g/mol |
| Appearance | Off-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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2024 |
| Halogen Content | F/Cl-containing |
| Nitrogen Atoms | 2 |
Related Chloro Standards
- 5-Chloro-1-phenyl-3-(trifluoromethyl)-1H-pyrazole (CAS 1076197-51-7)
- 4-Chloro-6-methyl-7-(trifluoromethyl)quinazoline (CAS 1160994-15-9)
- 3-Chloro-7-(trifluoromethyl)quinolin-4-amine (CAS 1203579-71-8)
- 4-(4-Chloro-3-fluoro-2-hydroxyphenyl)-4-oxobutanoic acid (CAS 1208265-79-5)
- 2-Chloro-4-(trifluoromethyl)quinolin-7-amine (CAS 1416439-79-6)
- 4-Chloro-2-methyl-6-(trifluoromethyl)quinazoline (CAS 1422284-63-6)
- 2-Chloro-8-(trifluoromethyl)quinolin-4-amine (CAS 1708160-46-6)
- 2-Chloro-6-(trifluoromethyl)-3-methylquinoxaline (CAS 98416-73-0)
Recommended Standards
- 3-Chloro-n-(2-fluoro-5-nitrophenyl)propanamide (CAS 710295-56-0)
- 4-Chloro-5-methyl-2-(trifluoromethyl)quinazoline (CAS 219773-99-6)
- 3-Chloro-2-(1H-pyrrol-1-yl)-5-(trifluoromethyl)pyridine (CAS 287978-92-1)
- 2-Chloro-3-cyano-6-cyclopropyl-4-(trifluoromethyl)pyridine 2-chloro-6-cyclopropyl-4-(trifluoromethyl)pyridine-3-carbonitrile 478049-48-8 (CAS 478049-48-8)
- 4,4-Dimethyl-1,2,3,4-tetrahydroquinoline hydrochloride (CAS 1146978-68-8)
- 1-(3-Chloro-4-fluorophenyl)butan-1-ol (CAS 1340194-46-8)
- 4-(4-Fluoro-2-trifluoromethylphenyl)-thiosemicarbazide (CAS 1303993-88-5)
- N-cyclopentyl-2-methylmorpholine-2-carboxamide hydrochloride (CAS 1361116-76-8)
- 2,6-dimethoxy-3-sulfamoylbenzoic acid (CAS 874841-12-0)
- 5-Amino-3-cyclopropoxypicolinic acid (CAS 1243435-01-9)
- (1-Ethylpiperidin-3-yl)methanol (CAS 54525-19-8)
- 6-(2-Hydroxyethyl)-5,7-dimethylisobenzofuran-1(3H)-one (CAS 74973-61-8)
- 2-(1,3-benzoxazol-2-ylsulfanyl)ethan-1-ol (CAS 126828-31-7)
- Tirzepatide Impurity 59 (CAS CATO-C4X-324059)
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