| CAS No. | 558-25-8 |
| Molecular Formula | CH3FO2S |
| Molecular Weight | 98.10 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Compared with other compounds in its class, the molecular weight of 98.10 g/mol gives METHANESULFONYL FLUORIDE distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
METHANESULFONYL FLUORIDE (CAS 558-25-8) is a high-purity analytical reference standard with the molecular formula CH3FO2S and a molecular weight of 98.10 g/mol.
Structurally, METHANESULFONYL FLUORIDE (CH3FO2S) contains a sulfone group, fluorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 0.0, corresponding to approximately 0 ring(s) or double-bond equivalent(s). With a molecular weight of 98.10 g/mol, it falls into the low-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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 | CH3FO2S |
| Molecular Weight | 98.10 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO |
| Stability | Stable under recommended storage conditions |
| Degree of Unsaturation (DBE) | 0.0 |
| CAS Registry Year (est.) | 1957 |
| Halogen Content | F-containing |
| Sulfur Atoms | 1 |