Ethyl 3-oxo-2-(triphenyl-l5-phosphaneylidene)pentanoate CAS 1474-33-5
| CAS No. | 1474-33-5 |
| Molecular Formula | C25H25O3P |
| Molecular Weight | 404.44 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of Ethyl 3-oxo-2-(triphenyl-l5-phosphaneylidene)pentanoate is closely related to a steroid core, a phosphonate group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
Ethyl 3-oxo-2-(triphenyl-l5-phosphaneylidene)pentanoate (CAS 1474-33-5) is a high-purity analytical reference standard with the molecular formula C25H25O3P and a molecular weight of 404.44 g/mol.
The molecular framework of Ethyl 3-oxo-2-(triphenyl-l5-phosphaneylidene)pentanoate (C25H25O3P) is characterized by a steroid core, a phosphonate group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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), Ethyl 3-oxo-2-(triphenyl-l5-phosphaneylidene)pentanoate 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 | C25H25O3P |
| Molecular Weight | 404.44 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at room temperature, 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 |
| Degree of Unsaturation (DBE) | 13.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
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