Diethyl (difluoro(trimethylsilyl)methyl)phosphonate CAS 80077-72-1
| CAS No. | 80077-72-1 |
| Molecular Formula | C8H19F2O3PSi |
| Molecular Weight | 260.29 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 (difluoro(trimethylsilyl)methyl)phosphonate (CAS 80077-72-1), molecular formula C8H19F2O3PSi and molecular weight 260.29 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C8H19F2O3PSi, Diethyl (difluoro(trimethylsilyl)methyl)phosphonate contains a phosphonate group, a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine substitution; these features give the compound characteristic functional-group stretching vibrations in infrared spectroscopy. The molecular weight of 260.29 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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 | C8H19F2O3PSi |
| Molecular Weight | 260.29 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | -1.5 |
| CAS Registry Year (est.) | 1979 |
| Halogen Content | F-containing |
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