Term : Diacetyl

« Back to Glossary Index

Diacetyl or butane-2,3-dione ((CH3CO)2) is an organic compound that is a by-product of fermentation.

Diacetyl is naturally present in alcoholic beverages and is used as a buttery flavor in the food industry. This flavor is also used in the elaboration of receipes of e-liquids.

Despite innocuousness when ingested, diacetyl has proven harmfulness upon inhalation. Some employees of manufactures using artificial butter flavoring have been diagnosed with bronchiolitis obliterans, a rare and serious disease of the lungs associated to this compound.

Together with acetylpropionyl, diacetyl is of legal use as a flavoring substance in the European food industry but their use is controversial in e-liquids for their potential harmfulness (Farsalinos et al., 2014).


Book your ad here
Previous articleANTZ
Next articleAcetylpropionyl
Jérôme Harlay
PhD in science and journalist for the Vaping Post. Specialised in scientific topics.