2-(Methyldiphenylphosphoranylidene)-1-phenylethanone CAS 57395-88-7
| CAS No. | 57395-88-7 |
| Molecular Formula | C21H19OP |
| Molecular Weight | 318.35 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 318.35 g/mol gives 2-(Methyldiphenylphosphoranylidene)-1-phenylethanone distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
2-(Methyldiphenylphosphoranylidene)-1-phenylethanone (CAS 57395-88-7), molecular formula C21H19OP and molecular weight 318.35 g/mol, is a CATO reference standard with documented purity and traceability.
2-(Methyldiphenylphosphoranylidene)-1-phenylethanone (C21H19OP) contains a steroid core, organophosphorus functionality, a hydroxyl group, an ether linkage. Its high carbon-to-hydrogen ratio confers good lipid solubility; 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.
As a certified reference material (CRM), 2-(Methyldiphenylphosphoranylidene)-1-phenylethanone 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 | C21H19OP |
| Molecular Weight | 318.35 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 12.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1973 |
Recommended Standards
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