| CAS No. | 68955-20-4 |
| Molecular Formula | C18H37O4S |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Sodium cetyl/stearyl sulfate (CAS 68955-20-4) is a high-purity analytical reference standard with the molecular formula C18H37O4SC16H33O4SNa and a molecular weight of 694.04 g/mol.
Sodium cetyl/stearyl sulfate (C18H37O4SC16H33O4SNa) contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage. 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.
| Molecular Formula | C18H37O4S C16H33O4S 2*Na |
| Molecular Weight | 694.04 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | Stable under recommended storage conditions |
| Degree of Unsaturation (DBE) | 0.0 |
| CAS Registry Year (est.) | 1976 |
| Sulfur Atoms | 2 |