(3S,5S)-3,5-Bis(tert-butyldimethylsilyloxy)-2-methyl-1-cyclohexen-1-ol 1-Trifluoromethanesulfonate 1,1,1-Trifluoro-methanesulfonic Acid (3S,5S)-3,5-Bis[[(1,1-dimethylethyl)dimethylsilyl]oxy]-2-methyl-1-cyclohexen-1-yl Ester 189894-13-1 CAS 189894-13-1

Purity 97%+In StockPharmaceutical Standards
CAS No.189894-13-1
Molecular FormulaC20H39F3O5SSi2
Molecular Weight504.75 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

(3S,5S)-3,5-Bis(tert-butyldimethylsilyloxy)-2-methyl-1-cyclohexen-1-ol 1-Trifluoromethanesulfonate 1,1,1-Trifluoro-methanesulfonic Acid (3S,5S)-3,5-Bis[[(1,1-dimethylethyl)dimethylsilyl]oxy]-2-methyl-1-cyclohexen-1-yl Ester 189894-13-1 CAS 189894-13-1 chemical structure

Description

(3S,5S)-3,5-Bis(tert-butyldimethylsilyloxy)-2-methyl-1-cyclohexen-1-ol 1-Trifluoromethanesulfonate 1,1,1-Trifluoro-methanesulfonic Acid (3S,5S)-3,5-Bis[[(1,1-dimethylethyl)dimethylsilyl]oxy]-2-methyl-1-cyclohexen-1-yl Ester 189894-13-1 (C20H39F3O5SSi2) contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine substitution. 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.

CATO supplies (3S,5S)-3,5-Bis(tert-butyldimethylsilyloxy)-2-methyl-1-cyclohexen-1-ol 1-Trifluoromethanesulfonate 1,1,1-Trifluoro-methanesulfonic Acid (3S,5S)-3,5-Bis[[(1,1-dimethylethyl)dimethylsilyl]oxy]-2-methyl-1-cyclohexen-1-yl Ester 189894-13-1 (CAS 189894-13-1), a certified reference material (molecular formula C20H39F3O5SSi2, MW 504.75 g/mol) for analytical method development and quality control.

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.

Physical & Chemical Properties

Molecular FormulaC20H39F3O5SSi2
Molecular Weight504.75 g/mol
Purity97%+
StorageStore at room temperature, keep sealed and dry
Solubility (reference)Soluble in methanol, acetonitrile, DMSO, water (slightly soluble)
StabilityContains ester bond; hydrolyzes under strong alkaline conditions
Degree of Unsaturation (DBE)0.0
CAS Registry Year (est.)2011
Halogen ContentF-containing
Sulfur Atoms1

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