Diethyl (1,1-difluoro-2-hydroxy-2-(4-methoxyphenyl)ethyl)phosphonate CAS 84443-04-9
| CAS No. | 84443-04-9 |
| Molecular Formula | C13H19F2O5P |
| Molecular Weight | 324.26 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
Diethyl (1,1-difluoro-2-hydroxy-2-(4-methoxyphenyl)ethyl)phosphonate (CAS 84443-04-9), molecular formula C13H19F2O5P and molecular weight 324.26 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, Diethyl (1,1-difluoro-2-hydroxy-2-(4-methoxyphenyl)ethyl)phosphonate (C13H19F2O5P) contains a phosphate ester group, a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 3.5, corresponding to approximately 3 ring(s) or double-bond equivalent(s). With a molecular weight of 324.26 g/mol, it falls into the moderately-high-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
As a certified reference material (CRM), Diethyl (1,1-difluoro-2-hydroxy-2-(4-methoxyphenyl)ethyl)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 | C13H19F2O5P |
| Molecular Weight | 324.26 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 3.5 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1981 |
| Halogen Content | F-containing |
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