| CAS No. | 53103-03-0 |
| Molecular Formula | C42H33P3 |
| Molecular Weight | 630.63 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
((Phenylphosphanediyl)bis(2,1-phenylene))bis(diphenylphosphane) (CAS 53103-03-0), molecular formula C42H33P3 and molecular weight 630.63 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C42H33P3, ((Phenylphosphanediyl)bis(2,1-phenylene))bis(diphenylphosphane) contains organophosphorus functionality, a polycyclic aromatic system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 630.63 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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), ((Phenylphosphanediyl)bis(2,1-phenylene))bis(diphenylphosphane) 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 | C42H33P3 |
| Molecular Weight | 630.63 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 26.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1972 |