Trifluoro-methanesulfonic acid tributylsilyl ester CAS 91158-35-9
| CAS No. | 91158-35-9 |
| Molecular Formula | C13H27F3O3SSi |
| Molecular Weight | 348.50 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Trifluoro-methanesulfonic acid tributylsilyl ester (CAS 91158-35-9) is a high-purity analytical reference standard with the molecular formula C13H27F3O3SSi and a molecular weight of 348.50 g/mol.
Trifluoro-methanesulfonic acid tributylsilyl ester (C13H27F3O3SSi) contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine substitution. It is notably hygroscopic, halogen substitution raises its density and boiling point, its high carbon-to-hydrogen ratio confers good lipid solubility, 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.
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.
CATO manufactures Trifluoro-methanesulfonic acid tributylsilyl ester under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C13H27F3O3SSi |
| Molecular Weight | 348.50 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | -1.0 |
| CAS Registry Year (est.) | 1983 |
| Halogen Content | F-containing |
| Sulfur Atoms | 1 |
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