Trimethylsilyl trifluoromethanesulfonate , 27607-77-8 , C4H9F3O3SSi
Trimethylsilyl trifluoromethanesulfonate , 27607-77-8 , C4H9F3O3SSi
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  • Product Details
TMSOTf is an important medical and pesticide intermediate as well as the structure unit of organic synthesis.

Name Trimethylsilyl trifluoromethanesulfonate
Synonyms TMS triflate;
Trifluoromethanesulfonic acid trimethylsilyl ester;
Trifluoromethanesulfonic Acid Trimethylsilyl Ester;
Trimethylsilyl trifluoromethylsulfonate;
trifluoromethanesulphonic acid trimethylsilyl ester;

Structural Formula
Molecular Formula C4H9F3O3SSi
Molecular Weight 222.25800
CAS Registry Number 27607-77-8
Precise quality 221.99900
Appearance and traits Transparent slightly yellow liquid
density 1.228 g/mL at 25 °C
Critical Gravity 1.228g/ml
Boiling point 140℃
Solubility in Water React with Water
Hazard Class 8
Purity ≥99%
Cl- ≤30ppm
Packing Specifications Stainless steel barrel .Packing form may be varied according to customers’ specific requirements.
Storage and Transportation Containers shall be kept tightly closed and stored in shady, cool and dry warehouse with well ventilation. In addition, containers shall be kept away from fire and heat source, and protected from direct sunshine. Electric, ventilation and illumination devices shall be explosion-proof. Electrostatic discharge shall be prevented. The containers are sensitive to water and air. It is strictly forbidden to get the containers contact with water. Moisture and rain shall be prevented. Try to handle and store the containers in environment of inert gases. After being opened, the containers must be resealed and placed vertically to avoid leakage.
Emergency Treatment of Leakage

In case of leakage, staff shall be evacuated to safe area. All fire and heat resources shall be removed and ventilation shall be ensured to prevent vapor concentration being accumulated to explosive range. Emergency processing staff shall use individual protective devices, wear filter or positive pressure self-contained breathing apparatus to prevent vapor being breathed. Stop the leakage when it is safe enough, and avoid leaked substances getting into the drainage. Leaked substances shall be collected into a container other than rinsed with water.

Try to avoid collision of containers when transferring them. Containers shall be transported as per requirements of dangerous goods by means of road transportation or ship containers.

Application (1)Alkylating agent of methyl silicone, adopted for conversion and protection of functional group (as protecting group of alcohol, carboxylic acid, carbonyl compound, mercaptan and nitro compound);
(2)Adopted as polymerization initiator of positive ion;
(3) Adopted as Lewis acid catalyst;
(4) Participate in reactions of C-C bond formation and carbon chain growth with organic compounds.

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