6-{[2-(1-tert-butyl-1H-pyrazole-4-carbonyl)naphthalen-1-yl]oxy}-2-chloro-3-(trifluoromethyl)pyridine CAS 956977-43-8
| CAS No. | 956977-43-8 |
| Molecular Formula | C24H19ClF3N3O2 |
| Molecular Weight | 473.87 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 6-{[2-(1-tert-butyl-1H-pyrazole-4-carbonyl)naphthalen-1-yl]oxy}-2-chloro-3-(trifluoromethyl)pyridine (CAS 956977-43-8), a certified reference material (molecular formula C24H19ClF3N3O2, MW 473.87 g/mol) for analytical method development and quality control.
The molecular framework of 6-{[2-(1-tert-butyl-1H-pyrazole-4-carbonyl)naphthalen-1-yl]oxy}-2-chloro-3-(trifluoromethyl)pyridine (C24H19ClF3N3O2) is characterized by a steroid core, an amide group, a hydroxyl group, an ether linkage, fluorine/chlorine substitution. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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 | C24H19ClF3N3O2 |
| Molecular Weight | 473.87 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 15.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Halogen Content | F/Cl-containing |
| Nitrogen Atoms | 3 |
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Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com