4645-32-3 Dimethyl vinylphosphonate Vinylphosphonic acid diMethyl ester, Min. 90% CAS 4645-32-3
| CAS No. | 4645-32-3 |
| Molecular Formula | C4H9O3P |
| Molecular Weight | 136.09 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4645-32-3 Dimethyl vinylphosphonate Vinylphosphonic acid diMethyl ester, Min. 90% (CAS 4645-32-3), molecular formula C4H9O3P and molecular weight 136.09 g/mol, is a CATO reference standard with documented purity and traceability.
4645-32-3 Dimethyl vinylphosphonate Vinylphosphonic acid diMethyl ester, Min. 90% (C4H9O3P) contains a phosphonate 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.
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 | C4H9O3P |
| Molecular Weight | 136.09 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 0.5 |
| CAS Registry Year (est.) | 1958 |
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