4-[(2E)-3-(2,4-Dichlorophenyl)prop-2-enoyl]phenyl methanesulfonate CAS 331460-77-6
| CAS No. | 331460-77-6 |
| Molecular Formula | C16H12Cl2O4S |
| Molecular Weight | 371.24 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
4-[(2E)-3-(2,4-Dichlorophenyl)prop-2-enoyl]phenyl methanesulfonate (CAS 331460-77-6), molecular formula C16H12Cl2O4S and molecular weight 371.24 g/mol, is a CATO reference standard with documented purity and traceability.
4-[(2E)-3-(2,4-Dichlorophenyl)prop-2-enoyl]phenyl methanesulfonate (C16H12Cl2O4S) contains a flavonoid core, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution. Halogen substitution raises its density and boiling point, its high carbon-to-hydrogen ratio confers good lipid solubility, 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).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C16H12Cl2O4S |
| Molecular Weight | 371.24 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| 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) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Cl-containing |
| Sulfur Atoms | 1 |
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Recommended Standards
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- Methyl 6-azaspiro[3.4]octane-7-carboxylate hydrochloride (CAS 2241138-56-5)
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- Sapropterin impurity 3 (CAS CATO-C4X-31023)
- N-[2-(4-nitrophenyl)ethyl]-N'-propyl-Urea (CAS 149340-93-2)
- tert-Butyl 3-(4-methylbenzyl)piperazine-1-carboxylate (CAS 886771-91-1)
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- Semaglutide Impurity 8 (CAS CATO-C4X-22268)
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