| CAS No. | 83494-32-0 |
| Molecular Formula | C3H4F2O2S |
| Molecular Weight | 142.12 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Flomoxef Impurity 3 (C3H4F2O2S) contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine substitution. Halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
Flomoxef Impurity 3 (CAS 83494-32-0) is a high-purity analytical reference standard with the molecular formula C3H4F2O2S and a molecular weight of 142.12 g/mol.
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 | C3H4F2O2S |
| Molecular Weight | 142.12 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 1.0 |
| CAS Registry Year (est.) | 1980 |
| Halogen Content | F-containing |
| Sulfur Atoms | 1 |