diacetyl, butanedione molecule. it is occurs in alcoholic beverages and is added as a flavoring to some foods. molecular model.

alcoholic atom atomic ball biacetyl bronchiolitis butanedione butter butterscotch buttery c4h6o2 carbon chemical chemistry diacetyl diketone dimethyl fermentation formula hydrogen illustration inorganic margarine microwave molecular molecule obliterans organic oxygen render rendering skeletal structure