Trifluoro-methanesulfonic acid dimethyl(1-methylethyl)silyl ester CAS 91158-36-0

Purity 97%+In StockPharmaceutical Standards
CAS No.91158-36-0
Molecular FormulaC6H13F3O3SSi
Molecular Weight250.31 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

Trifluoro-methanesulfonic acid dimethyl(1-methylethyl)silyl ester CAS 91158-36-0 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.

Trifluoro-methanesulfonic acid dimethyl(1-methylethyl)silyl ester (CAS 91158-36-0), molecular formula C6H13F3O3SSi and molecular weight 250.31 g/mol, is a CATO reference standard with documented purity and traceability.

Structurally, Trifluoro-methanesulfonic acid dimethyl(1-methylethyl)silyl ester (C6H13F3O3SSi) 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 250.31 g/mol, it falls into the medium-molecular-weight range. 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.

Physical & Chemical Properties

Molecular FormulaC6H13F3O3SSi
Molecular Weight250.31 g/mol
Purity97%+
StorageStore in a cool place (≤25°C), keep sealed and dry, keep tightly closed to prevent evaporation
Solubility (reference)Soluble in methanol, ethanol, DMSO, water
StabilityHygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions
Degree of Unsaturation (DBE)-1.0
CAS Registry Year (est.)1983
Halogen ContentF-containing
Sulfur Atoms1

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