Butan-2-ol, also known as sec-butanol, is a secondary alcohol with the molecular formula C4H10O. It is a colorless liquid with a characteristic odor and is used as a solvent in various industrial applications. It can be found in small amounts in some fermented foods and beverages. In culinary contexts, butan-2-ol is not typically used directly but may be a byproduct of fermentation processes. Its sensory characteristics include a sweet, mild odor, and it is known for its ability to dissolve a wide range of organic compounds, making it valuable in food and flavoring industries. However, it should be handled with care due to its potential health effects.