Safety Reference
Danger
Sourcing 2,3-butanedione?
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Sourcing 2,3-butanedione?
Post a free purchase request — no account needed. It reaches suppliers of this product, and replies go straight to your inbox.
Diacetyl, also known as 2,3-butanedione, is an organic compound with an intensely buttery flavor. It is a yellow liquid and a vicinal diketone.
Content scope: Information here supports chemical identification and industrial supply, research, and manufacturing contexts. It is not a therapeutic claim, medical advice, or drug-use instructions.
The international HS code for 2,3-butanedione (CAS 431-03-8) is 2914.19.
2914.19
2914 19 90
Classification per the EU customs inventory ECICS (2026-07 snapshot, HS 2022). National tariff lines and product form can affect the final classification.
butane-2,3-dione
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