триметилхлорсилан

Chlorotrimethylsilane is a typical Silane Blocking Agent, which can protect or deprotect functional groups selectively. It is widely used in the syntheses of drugs. It have been used in the preparation of volatile derivatives of a wide range of compounds for GC analysis, and used for silylation and as a protection group in the process of various organic synthesis.
A clear, colorless, caustic and highly flammable liquid with a pungent odour. Readily hydrolyzed with liberation of hydrogen chloride; soluble in benzene, ether and perchloroethylene.