O,O-Bis(4-chlorophenyl) Phosphorochloridothioate CAS 55526-70-0
| CAS No. | 55526-70-0 |
| Molecular Formula | C12H8Cl3O2PS |
| Molecular Weight | 353.59 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
O,O-Bis(4-chlorophenyl) Phosphorochloridothioate (CAS 55526-70-0) is a high-purity analytical reference standard with the molecular formula C12H8Cl3O2PS and a molecular weight of 353.59 g/mol.
O,O-Bis(4-chlorophenyl) Phosphorochloridothioate (C12H8Cl3O2PS) contains a sulfone group, organophosphorus functionality, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring 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. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
As a certified reference material (CRM), O,O-Bis(4-chlorophenyl) Phosphorochloridothioate 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.
Physical & Chemical Properties
| Molecular Formula | C12H8Cl3O2PS |
| Molecular Weight | 353.59 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| 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) | 7.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1972 |
| Halogen Content | Cl-containing |
| Sulfur Atoms | 1 |
Recommended Standards
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