Benzofuran is an aromatic heterocyclic organic compound with the chemical formula C8H6O. It is a colorless oily liquid at room temperature with an aromatic odor. Benzofuran can be volatilized with water vapor and can be decomposed by potassium permanganate and other oxidants. It is an intermediate for the preparation of amiodarone and indene resin. Benzofuran derivatives are important pharmaceutical intermediates.