2-methyltetrahydrofuran-3-one, also known as methyl tetrahydrofuranone, is a colorless to yellow liquid that is soluble in organic solvents such as ethanol. Its boiling point is 139 ℃. It is a widely present aromatic component in nature, such as beer, bread, cocoa, coffee, pomegranate, shiitake mushrooms, onions, passion fruit, peanuts, pork, potatoes, rum, tomatoes, and tobacco. 2-methyltetrahydrofuran-3-one is a colorless transparent liquid with the aroma of rum and bread, with a chemical formula of C5H6O2 and a molecular weight of 100.1. Due to its various fragrances, 2-methyltetrahydrofuran-3-one can provide sweet, caramel, rum, and bread aromas to the fragrance system. Therefore, it can be widely used for flavoring various foods and tobacco.