What is a Acetoin (C₄H₆O₂)?

Acetoin (C₄H₆O₂) is an organic compound with the chemical formula C₄H₆O₂, known as a derivative of 2,3-butanediol. It is a colorless liquid with a sweet aroma, and is notably recognized for its buttery flavor commonly found in dairy products. Acetoin is naturally occurring and produced as a byproduct of fermentation and microbial metabolism. It is commonly generated by lactic acid bacteria during fermentation and is found in products like yogurt and cheese.

In the food industry, acetoin is widely used as a flavoring agent, especially in butter-flavored products and confectionery. It is also an important intermediate in chemical synthesis and is used in the production of cosmetics and pharmaceuticals. Acetoin’s sweet aroma makes it a valuable ingredient in perfumes and fragrances. Its chemical properties also make it useful in polymer chemistry and as an intermediate in drug synthesis, where it participates in hydrolysis reactions.

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