Butan-2-one, also known as methyl ethyl ketone (MEK), is a colorless, flammable liquid with a sweet odor. It is a ketone and is commonly used as a solvent in various industrial applications, including paint thinners and adhesives. In the food industry, it can be found as a flavoring agent, contributing to the aroma of certain foods. Its chemical properties include a polar carbonyl group, which enhances its solubility in polar solvents like water and alcohol. Butan-2-one is also used in the synthesis of other organic compounds and has applications in pharmaceuticals and chemical manufacturing.