Diethyl (4-acetylphenyl)phosphonate CAS 25944-71-2
| CAS No. | 25944-71-2 |
| Molecular Formula | C12H17O4P |
| Molecular Weight | 256.23 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 256.23 g/mol gives Diethyl (4-acetylphenyl)phosphonate distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies Diethyl (4-acetylphenyl)phosphonate (CAS 25944-71-2), a certified reference material (molecular formula C12H17O4P, MW 256.23 g/mol) for analytical method development and quality control.
Owing to a phosphate ester group, a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system, Diethyl (4-acetylphenyl)phosphonate is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 256.23 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.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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.
Physical & Chemical Properties
| Molecular Formula | C12H17O4P |
| Molecular Weight | 256.23 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.) | 1964 |
Related Diethyl Standards
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Recommended Standards
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- Methyl 2-(bromomethyl)naphthalene-1-carboxylate (CAS 2417-76-7)
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- 2-(4-Carbamoylphenoxy)-2-methylpropanoic acid (CAS 121809-54-9)
- 5-(2-Methylbutyl)-1,3,4-thiadiazol-2-amine (CAS 299441-74-0)
- (S)-2-Hydroxy-N-methoxy-N-methylpropanamide (CAS 177905-46-3)
- Ezetimibe Impurity 5 (CAS 1374250-07-3)
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