| CAS No. | 301193-70-4 |
| Molecular Formula | C22H14Cl2O6S |
| Molecular Weight | 477.31 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 2-(4-Methoxyphenyl)-4-oxo-4H-chromen-3-yl 2,4-dichlorobenzenesulfonate.
2-(4-Methoxyphenyl)-4-oxo-4H-chromen-3-yl 2,4-dichlorobenzenesulfonate (CAS 301193-70-4), molecular formula C22H14Cl2O6S and molecular weight 477.31 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 2-(4-Methoxyphenyl)-4-oxo-4H-chromen-3-yl 2,4-dichlorobenzenesulfonate (C22H14Cl2O6S) is characterized by a flavonoid core, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution. In reversed-phase chromatography, its retention is governed primarily by the polarity and ionization state of its functional 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).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures 2-(4-Methoxyphenyl)-4-oxo-4H-chromen-3-yl 2,4-dichlorobenzenesulfonate 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.
| Molecular Formula | C22H14Cl2O6S |
| Molecular Weight | 477.31 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 |