Trimethylsilyl 2-(fluorosulfonyl)difluoroacetate CAS 120801-75-4
| CAS No. | 120801-75-4 |
| Molecular Formula | C5H9F3O4SSi |
| Molecular Weight | 250.27 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Trimethylsilyl 2-(fluorosulfonyl)difluoroacetate (C5H9F3O4SSi) contains a carbohydrate-derived structure, a sulfone group, fluorine substitution. It is notably hygroscopic, 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.
Trimethylsilyl 2-(fluorosulfonyl)difluoroacetate (CAS 120801-75-4) is a high-purity analytical reference standard with the molecular formula C5H9F3O4SSi and a molecular weight of 250.27 g/mol.
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.
As a certified reference material (CRM), Trimethylsilyl 2-(fluorosulfonyl)difluoroacetate meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C5H9F3O4SSi |
| Molecular Weight | 250.27 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), keep sealed and dry, keep tightly closed to prevent evaporation |
| 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) | 0.0 |
| CAS Registry Year (est.) | 1991 |
| Halogen Content | F-containing |
| Sulfur Atoms | 1 |
Related Trimethylsilyl Standards
- 2-(Trimethylsilyl)benzo[b]thiophen-7-ylboronic acid (CAS 1217501-33-1)
- 4-(Trimethylsilyl)diphenylacetylene (CAS 136459-72-8)
- 4-(Trimethylsilyl)phenyl pivalate (CAS 1418117-88-0)
- N-(3-(trimethylsilyl)pyridin-2-yl)pivalamide (CAS 86847-63-4)
- 1,3-Bis(trimethylsilyl)-1,3,2-diazaphosphinane 2-oxide (CAS 113107-36-1)
- Tris(trimethylsilyl)phosphine (ca. 10% in Hexane) (CAS 15573-38-3)
- 7-Propyl-6-(trimethylsilyl)-2,3-dihydroindolizin-5(1H)-one (CAS 88761-33-5)
- 5-Phenyl-3-((trimethylsilyl)methyl)oxazolidin-4-one (CAS 671777-88-1)
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- 2-(4-(4-Fluorophenyl)-1H-indol-3-yl)acetonitrile (CAS 1214338-52-9)
- (5-((4-Ethylpiperazin-1-yl)sulfonyl)-2-fluoro-4-methylphenyl)boronic acid (CAS 1704121-47-0)
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- Ethyl 2-chloro-6-fluoroisonicotinate (CAS 1214332-80-5)
- Diethyl 4-((1E,3E)-4-(furan-2-yl)buta-1,3-dien-1-yl)-2,6-dimethyl-1,4-dihydropyridine-3,5-dicarboxylate (CAS 71160-18-4)
- 1-Boc-pyrrolidine-2,4-dione (CAS 182352-59-6)
- 1-(4-Ethynylphenyl)ethanone (CAS 42472-69-5)
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- N-(3-bromopyridin-2-yl)furan-2-carboxamide (CAS 634202-32-7)
- (R)-Methyl 3-(benzyloxy)butanoate (CAS 116761-24-1)
- Tau Peptide (512-525) amide trifluoroacetate salt (CAS 2022956-61-0)
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