2-(4-Ethoxyphenyl)-4-oxo-4H-chromen-3-yl 2,5-dichlorobenzene-1-sulfonate CAS 298217-82-0
| CAS No. | 298217-82-0 |
| Molecular Formula | C23H16Cl2O6S |
| Molecular Weight | 491.34 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 2-(4-Ethoxyphenyl)-4-oxo-4H-chromen-3-yl 2,5-dichlorobenzene-1-sulfonate 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.
CATO supplies 2-(4-Ethoxyphenyl)-4-oxo-4H-chromen-3-yl 2,5-dichlorobenzene-1-sulfonate (CAS 298217-82-0), a certified reference material (molecular formula C23H16Cl2O6S, MW 491.34 g/mol) for analytical method development and quality control.
2-(4-Ethoxyphenyl)-4-oxo-4H-chromen-3-yl 2,5-dichlorobenzene-1-sulfonate (C23H16Cl2O6S) contains a flavonoid core, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution. Halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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.
Physical & Chemical Properties
| Molecular Formula | C23H16Cl2O6S |
| Molecular Weight | 491.34 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) | 15.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Cl-containing |
| Sulfur Atoms | 1 |
Related Ethoxyphenyl Standards
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Recommended Standards
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