Acetophenone is an organic compound often used as a fragrance in perfumes and as a flavoring agent in the food industry. Synonyms for acetophenone include ethyl phenyl ketone, phenylethanone, and 2-phenyl-1-one. Ethyl phenyl ketone is used in the production of polycarbonate resins, paints, and coatings. Phenylethanone is used as a solvent in the manufacture of pharmaceuticals and in the creation of dyes. 2-phenyl-1-one is used in the synthesis of other organic compounds and in medicinal chemistry as a precursor to drugs such as aprepitant. While these compounds have different uses, they all have similar structures and properties to acetophenone.