| CAS No. | 477712-71-3 |
| Molecular Formula | C22H15ClF2N2O3S |
| Molecular Weight | 460.88 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 3-{3-[(2-chloro-6-fluorophenyl)methoxy]phenyl}-1-(4-fluorobenzenesulfonyl)-1H-pyrazole.
3-{3-[(2-chloro-6-fluorophenyl)methoxy]phenyl}-1-(4-fluorobenzenesulfonyl)-1H-pyrazole (CAS 477712-71-3), molecular formula C22H15ClF2N2O3S and molecular weight 460.88 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C22H15ClF2N2O3S, 3-{3-[(2-chloro-6-fluorophenyl)methoxy]phenyl}-1-(4-fluorobenzenesulfonyl)-1H-pyrazole contains a steroid core, an amide group, a sulfone 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 460.88 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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.
| Molecular Formula | C22H15ClF2N2O3S |
| Molecular Weight | 460.88 g/mol |
| 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.) | 2025 |
| Halogen Content | F/Cl-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |