| CAS No. | 5286-73-7 |
| Molecular Formula | C8H19O4PS2 |
| Molecular Weight | 274.34 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Demeton-o-sulfoxide (CAS 5286-73-7) is a high-purity analytical reference standard with the molecular formula C8H19O4PS2 and a molecular weight of 274.34 g/mol.
Demeton-o-sulfoxide (C8H19O4PS2) contains a sulfone group, 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.
As a certified reference material (CRM), Demeton-o-sulfoxide 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.
| Molecular Formula | C8H19O4PS2 |
| Molecular Weight | 274.34 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) | -0.5 |
| CAS Registry Year (est.) | 1958 |
| Sulfur Atoms | 2 |