| CAS No. | 54543-04-3 |
| Molecular Formula | C8H15O4P |
| Molecular Weight | 206.18 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
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.
Dimethyl (E)-(3-Methyl-2-oxopent-3-en-1-yl)phosphonate (CAS 54543-04-3), molecular formula C8H15O4P and molecular weight 206.18 g/mol, is a CATO reference standard with documented purity and traceability.
Dimethyl (E)-(3-Methyl-2-oxopent-3-en-1-yl)phosphonate (C8H15O4P) contains a phosphate ester group, a carboxylic acid group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions.
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.
| Molecular Formula | C8H15O4P |
| Molecular Weight | 206.18 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 1.5 |
| CAS Registry Year (est.) | 1972 |