Bis(triethoxysilylpropyl)tetrasulfide

The compound is a colorless viscous liquid that is soluble in ordinary organic solvents such as toluene.

[1][2][3] The compound was first prepared by the reaction of 3-(triethoxysilyl)propyl chloride with sodium tetrasulfide:[4]

Bis(triethoxysilylpropyl)tetrasulfide is a bifunctional molecule in that it contains two kinds of reactive functional groups.

The tetrasulfide group is a polysulfide, which means that it consists of a chain of sulfur atoms.

S-S bonds are susceptible to reduction (to thiols), attachment to metals (e.g., for protection against corrosion), and vulcanization.

Reaction