| CAS No. | 338407-45-7 |
| Molecular Formula | C25H14Cl2F3NO5S |
| Molecular Weight | 568.35 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
2-(Benzenesulfonyl)-4-{[3-chloro-5-(trifluoromethyl)pyridin-2-yl]oxy}phenyl 4-chlorobenzoate (CAS 338407-45-7) is a high-purity analytical reference standard with the molecular formula C25H14Cl2F3NO5S and a molecular weight of 568.35 g/mol.
The molecular framework of 2-(Benzenesulfonyl)-4-{[3-chloro-5-(trifluoromethyl)pyridin-2-yl]oxy}phenyl 4-chlorobenzoate (C25H14Cl2F3NO5S) is characterized by a flavonoid core, an amide group, a sulfone 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 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).
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.
As a certified reference material (CRM), 2-(Benzenesulfonyl)-4-{[3-chloro-5-(trifluoromethyl)pyridin-2-yl]oxy}phenyl 4-chlorobenzoate meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
| Molecular Formula | C25H14Cl2F3NO5S |
| Molecular Weight | 568.35 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions |
| 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 | 1 |
| Sulfur Atoms | 1 |