Is Tert-Butyl Hydroquinone vegan?

Tert-Butyl Hydroquinone

Vegan

Tert-butyl hydroquinone (TBHQ) is a synthetic phenolic antioxidant used to preserve fats, oils, and fat-containing foods. It is produced by chemical alkylation of hydroquinone and is effective at preventing rancidity in unsaturated fats.

Also known as 2-tert-Butylhydroquinone, Mono-tert-butylhydroquinone, TBHQ, tert-Butyl-1,4-benzenediol, tert-Butylhydroquinone, Tertiary butyl hydroquinone
E number E319
Last reviewed 22 April 2026

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