Butylhydroxytoluene (Butylated hydroxytoluene, BHT, ionol, dibunol, agidol-1, E321).
Formula (CH3)(tert-C4H9)2C6H2OH
In qaabkeeda saafiga ah-budada cad. Farsamada ionol-budada jaalaha ah.
Waxaa loo isticmaalaa sida antioxidant-ka soo saarista alaabta cuntada, saliidaha, caagadaha, balaastikada, iwm.
Sidoo kale waa xarun bilow u ah isku-dhafka noocyo kala duwan oo phenols ah oo xannibay, kuwaas oo intooda badan leh dhaqdhaqaaq bayooloji ama loo isticmaalo warshadaha.