Diacetyl

About Diacetyl

Diacetyl, also called 2,3-butanedione, is an aroma compound known for its strong buttery character. It can occur in fermentation and is used as a building block for the impression of dairy products or baked food. In perfumery it is an aromatic material, rather than an extract made from butter itself.

Scent Profile

Its odor is intensely sweet, creamy and buttery, with a warm caramel-like nuance and a penetrating edge. A small amount can change the texture of an accord substantially. The sharper character is part of the material alongside its round dairy impression, so its effect depends closely on concentration and the ingredients surrounding it.

Use in Perfumery

With vanilla or tonka, diacetyl can support the soft richness associated with pastry and caramel. It adds a buttery or dairy-like layer to coffee and chocolate accords, helping those reconstructions suggest the texture of familiar food. Fruity compositions can also gain richness from it. Its strong individual character calls for a precise balance within the formula, where a small contribution can provide fullness without obscuring the neighboring materials.