Iodoethane, also known as ethyl iodide, is an organoiodine compound with the formula C2H5I. It is a colorless liquid with a sweet odor, used primarily as a reagent in organic synthesis. Iodoethane is produced by the reaction of ethanol with iodine and phosphorus. It serves as an alkylating agent in the synthesis of various organic compounds and is also used in the preparation of pharmaceuticals. Its sensory characteristics include a sweet, fruity smell, making it notable in certain chemical applications. However, due to its toxicity, it must be handled with care in laboratory settings.