| CAS No. | 329080-00-4 |
| Molecular Formula | C16H12BrClO3S |
| Molecular Weight | 399.69 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
2-[(4-Bromophenyl)sulfanyl]-4-(4-chlorophenyl)-4-oxobutanoic acid (CAS 329080-00-4), molecular formula C16H12BrClO3S and molecular weight 399.69 g/mol, is a CATO reference standard with documented purity and traceability.
2-[(4-Bromophenyl)sulfanyl]-4-(4-chlorophenyl)-4-oxobutanoic acid (C16H12BrClO3S) contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine/bromine substitution, a polycyclic aromatic system. 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. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 2-[(4-Bromophenyl)sulfanyl]-4-(4-chlorophenyl)-4-oxobutanoic acid 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 | C16H12BrClO3S |
| Molecular Weight | 399.69 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/Br-containing |
| Sulfur Atoms | 1 |