But3enoic

But-3-enoic acid, also known as but-3-enoic acid, is a chemical compound with the formula CH3CH=CHCOOH. It is a straight-chain fatty acid with a cis-double bond in the 3rd position. This compound is a colorless liquid at room temperature and is slightly soluble in water. It has a characteristic fruity odor and is used as a flavoring agent in food and beverages, particularly in the production of fruit flavors and aromas.

But-3-enoic acid is naturally present in various fruits and vegetables, such as apples, pears, and cherries. It contributes to the characteristic flavors and aromas of these foods. In the food industry, it is used as a natural flavoring agent in products like jams, jellies, and beverages. It is also used in the production of perfumes and cosmetics due to its pleasant aroma.

The compound is produced industrially through the fermentation of sugars by certain bacteria or through the hydrolysis of certain fats. It is also synthesized in the laboratory through the reaction of but-2-ene with carbon monoxide in the presence of a catalyst.

But-3-enoic acid is generally recognized as safe (GRAS) by regulatory authorities like the FDA for use in food and beverages. However, like other food additives, it should be used in accordance with good manufacturing practices to ensure safety and quality.

In chemistry, but-3-enoic acid is an example of an alpha,beta-unsaturated carboxylic acid, which means it has a double bond between the first and second carbon atoms and a carboxyl group. This structural feature allows it to participate in various chemical reactions, such as addition reactions and polymerization reactions.