Diethyl (2-oxo-4-phenylbutyl)phosphonate CAS 40601-45-4
| CAS No. | 40601-45-4 |
| Molecular Formula | C14H21O4P |
| Molecular Weight | 284.29 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Diethyl (2-oxo-4-phenylbutyl)phosphonate (CAS 40601-45-4), molecular formula C14H21O4P and molecular weight 284.29 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, Diethyl (2-oxo-4-phenylbutyl)phosphonate (C14H21O4P) contains a phosphate ester group, a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 4.5, corresponding to approximately 4 ring(s) or double-bond equivalent(s). With a molecular weight of 284.29 g/mol, it falls into the medium-molecular-weight range. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
As a certified reference material (CRM), Diethyl (2-oxo-4-phenylbutyl)phosphonate 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 | C14H21O4P |
| Molecular Weight | 284.29 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 4.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1968 |
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Recommended Standards
- 6-Mercaptopurine-9-β-D-ribofuranoside (CAS 574-25-4)
- diisopropyl (2-oxo-2-phenylethyl)phosphonate (CAS 57057-15-5)
- 6-(Morpholinosulfonyl)-1H-benzo[d][1,2,3]triazol-1-ol (CAS 571154-96-6)
- Dimethyl 2-((acetylthio)methyl)pyrimidine-4,5-dicarboxylate (CAS 653586-13-1)
- 3-[(4-Methylphenyl)methyl]-1,3,7-triazaspiro[4.4]nonane-2,4-dione (CAS 1524991-37-4)
- Tert-butyl (2-cyanoethyl)(cyclopropyl)carbamate (CAS 155542-13-5)
- Tert-Dodecanethiol (CAS 25103-58-6)
- 2-((4-Fluoro-2-methylphenoxy)methyl)-1,3-dioxolane (CAS 1443331-22-3)
- 4-Methylumbelliferyl-β-D-xylopyranoside (CAS 6734-33-4)
- 1-(4-Fluorophenyl)butan-1-ol (CAS 704-83-6)
- Omadacycline Impurity 33 (CAS CATO-C4X-285733)
- Vardenafil Impurity 62 (CAS 933796-16-8(free base))
- 2-(4-methyl-4H-1,2,4-triazol-3-yl)ethan-1-amine dihydrochloride (CAS 1158631-54-9)
- Insulin Degludec Impurity 15 (CAS CATO-C4X-215715)
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