Is tert-Butylhydroquinone vegan?

tert-Butylhydroquinone

Vegan

tert-Butylhydroquinone (TBHQ) is a synthetic phenolic antioxidant used as a food preservative to extend the shelf life of oils, fats, and fat-containing foods such as margarines, crackers, and fast food. It is produced by chemical synthesis from phenol and isobutylene.

Also known as Butylhydroquinone, TBHQ, tert-Butyl Hydroquinone, tert-Butylhydroquinone, Tertiary Butylhydroquinone
E number E319
CAS number 1948-33-0
EC number 217-752-2
Last reviewed 16 April 2026

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