Trifluoro-methanesulfonic acid dimethyl(1,1,2,2,2-pentafluoroethyl)silyl ester CAS 1190956-21-8
| CAS No. | 1190956-21-8 |
| Molecular Formula | C5H6F8O3SSi |
| Molecular Weight | 326.24 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
CATO supplies Trifluoro-methanesulfonic acid dimethyl(1,1,2,2,2-pentafluoroethyl)silyl ester (CAS 1190956-21-8), a certified reference material (molecular formula C5H6F8O3SSi, MW 326.24 g/mol) for analytical method development and quality control.
Structurally, Trifluoro-methanesulfonic acid dimethyl(1,1,2,2,2-pentafluoroethyl)silyl ester (C5H6F8O3SSi) contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine substitution. The molecule exhibits a degree of unsaturation (DBE) of -1.0, corresponding to approximately 0 ring(s) or double-bond equivalent(s). With a molecular weight of 326.24 g/mol, it falls into the moderately-high-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.
Physical & Chemical Properties
| Molecular Formula | C5H6F8O3SSi |
| Molecular Weight | 326.24 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.) | 1989 |
| Halogen Content | F-containing |
| Sulfur Atoms | 1 |
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