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Chemical Name:Trimethylsllytrifluoromethanesulphonate 
Synonyms:Trimethylsilyl trifluoromethanesulphonate; Trimethylsilyl trifluoromethanesulfonate; Trimethylsilyltrifluoromethanesulfonate 
Cas No.:27607-77-8 
Molecular Formula:C4H9F3O3SSi 
Molecular Weight:980.1569 
Appearance:Colorless to pale yellow liquid 
Usage:Cationic initiator, has been used as a catalyst in organic synthesis and silicon-based reagents 
Molecular Structure: 

Trimethylsilyl trifluoromethanesulfonate
CAS No.: 27607-77-8
Formula: C4H9F3O3SSi        CF3SO3Si(CH3)3

Molecular Weight: 222.26
Melting point: none       Boiling point:  140℃
Liquid Density: 1.228g/ml      Solubility in water: reacted
Danger classification: 8 (corrosive), 3(combustible liquid)
Purity: ≥99%      Cl- : ≤30ppm   Water:  0.1% max

Applications:  silylating agent widely used to protect groups such as alcohols, carboxylic acids, carbonyls, mercaptans and nitro compounds.Initiator of the cationic polymerization.An efficient Lewis acid catalyst.An effective deprotective agent. For example, tert-butyl esters can be easily cleaved by TMSOTf, whereas benzyl esters are unaffected, permitting selective cleavage.



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