4-(Trimethylsilyl)pyridine is an organosilicon compound serving as a key intermediate in organic synthesis. It is commonly used in cross-coupling reactions, such as the Hiyama-Denmark coupling, where it acts as a source of the pyridylsilane group for constructing carbon-carbon bonds. This reagent is valuable in the synthesis of pharmaceuticals, agrochemicals, and functional materials. Additionally, it facilitates selective functionalization of pyridine rings and can participate in silylation processes or as a directing group in metalation reactions.