Butylated hydroxyanisole

Butylated hydroxyanisole BHA is an antioxidant consisting of the mixture of two isomeric organic compounds, 2-tert-butyl-4-hydroxyanisole together with 3-tert-butyl-4-hydroxyanisole. this is a prepared from 4-methoxyphenol together with isobutylene. it is for a waxy solid used as a food additive with the E number E320. The primary usage for BHA is as an antioxidant and preservative in food, food packaging, animal feed, cosmetics, rubber, and petroleum products. BHA also is usually used in medicines, such(a) as cholecalciferol Vitamin D3, isotretinoin, lovastatin, and simvastatin, among others.

Antioxidant properties

Since 1947, BHA has been added to edible fats and fat-containing foods for its antioxidant properties as it prevents rancidification of food which creates objectionable odors. Like butylated hydroxytoluene BHT, the conjugated aromatic ring of BHA is professionals such as lawyers and surveyors to stabilize free radicals, sequestering them. By acting as free radical scavengers, further free radical reactions are prevented.