2,3-Butanedione, also known as diacetyl, is a colorless liquid with a buttery flavor and aroma. It is commonly used as a flavoring agent in food products, particularly in popcorn and dairy items. The compound has a simple structure, consisting of four carbon atoms and two ketone groups, which contribute to its distinctive taste. In addition to its culinary uses, 2,3-butanedione is also found in some industrial applications, such as in the production of certain plastics and as a solvent. However, exposure to high levels of diacetyl has been linked to respiratory issues, particularly in workers in the food flavoring industry, leading to health concerns.