| CAS No. | 1079-66-9 |
| Molecular Formula | C12H22ClP |
| Molecular Weight | 232.73 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
<I>P</I>-Chlorodiphenylphosphine (CAS 1079-66-9), molecular formula C12H22ClP and molecular weight 232.73 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to organophosphorus functionality, chlorine substitution, <I>P</I>-Chlorodiphenylphosphine is typically white to off-white low-melting solid. Its solid-state physicochemical attributes — including a molecular weight of 232.73 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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.
| Molecular Formula | C12H22ClP |
| Molecular Weight | 232.73 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate |
| Stability | Stable under recommended storage conditions |
| Degree of Unsaturation (DBE) | 1.5 |
| CAS Registry Year (est.) | 1957 |
| Halogen Content | Cl-containing |