5-{1-[3-chloro-5-(trifluoromethyl)pyridin-2-yl]-1H-pyrazol-3-yl}-3-(4-fluorophenyl)-2,1-benzoxazole CAS 321571-05-5
| CAS No. | 321571-05-5 |
| Molecular Formula | C22H11ClF4N4O |
| Molecular Weight | 458.80 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 5-{1-[3-chloro-5-(trifluoromethyl)pyridin-2-yl]-1H-pyrazol-3-yl}-3-(4-fluorophenyl)-2,1-benzoxazole.
5-{1-[3-chloro-5-(trifluoromethyl)pyridin-2-yl]-1H-pyrazol-3-yl}-3-(4-fluorophenyl)-2,1-benzoxazole (CAS 321571-05-5), molecular formula C22H11ClF4N4O and molecular weight 458.80 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C22H11ClF4N4O, 5-{1-[3-chloro-5-(trifluoromethyl)pyridin-2-yl]-1H-pyrazol-3-yl}-3-(4-fluorophenyl)-2,1-benzoxazole contains a steroid core, an amide group, a hydroxyl group, an ether linkage, fluorine/chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 458.80 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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 5-{1-[3-chloro-5-(trifluoromethyl)pyridin-2-yl]-1H-pyrazol-3-yl}-3-(4-fluorophenyl)-2,1-benzoxazole 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 | C22H11ClF4N4O |
| Molecular Weight | 458.80 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light |
| 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) | 17.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | F/Cl-containing |
| Nitrogen Atoms | 4 |
Related chloro Standards
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- 4-(1H-Imidazol-1-ylmethyl)-5-methylisoxazole-3-carboxylic acid (CAS 893751-88-7)
- Retatrutide (CAS 2381089-83-2)
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