| CAS No. | 647836-31-5 |
| Molecular Formula | C5HF9O5S |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
The occurrence of Potassium 5-fluorosulfonylperfluoro(2-methyl-3-oxapentanoate) is closely related to a carbohydrate-derived structure, a sulfone group, fluorine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
CATO supplies Potassium 5-fluorosulfonylperfluoro(2-methyl-3-oxapentanoate) (CAS 647836-31-5), a certified reference material (molecular formula C5HF9O5SK, MW 383.20 g/mol) for analytical method development and quality control.
Based on its molecular formula C5HF9O5SK, Potassium 5-fluorosulfonylperfluoro(2-methyl-3-oxapentanoate) contains a carbohydrate-derived structure, a sulfone group, fluorine substitution; these features give the compound characteristic functional-group stretching vibrations in infrared spectroscopy. The molecular weight of 383.20 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
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 | C5HF9O5S K |
| Molecular Weight | 383.20 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 1.0 |
| CAS Registry Year (est.) | 1985 |
| Halogen Content | F-containing |
| Sulfur Atoms | 1 |