What is a Diacetyl (C4H6O2)?

Diacetyl (C4H6O2) is an organic compound that appears as a volatile liquid with a distinctive buttery or caramel-like flavor. It is commonly used in the food industry as a flavoring agent, particularly in butter-flavored products and as a component of the flavor in fermented foods and beer. While diacetyl is safe for use at low concentrations in food products, it can be harmful at high concentrations, particularly through inhalation. Prolonged exposure to diacetyl has been linked to respiratory issues, notably a condition known as "popcorn lung," associated with workers in popcorn factories. As such, proper ventilation and safety precautions are necessary when handling diacetyl, especially in industrial settings.

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