BHT (Butylated Hydroxytoluene) is a fat-soluble synthetic antioxidant used to protect food products from oxidation. It acts by neutralizing free radicals, thereby preventing the deterioration of fats, oils, and fat-containing foods. 

Chemical & Functional Notes: BHT has excellent thermal stability, making it well-suited for baked and fried goods. It is commonly combined with BHA or propyl gallate for synergistic effects. BHT is also used in cosmetic and pharmaceutical formulations to prevent oxidation of active compounds. 

Applications & Benefits: Used in vegetable oils, animal fats, cereals, snacks, baked goods, confectionery, processed meats, and personal care products.

Advantages include strong lipid protection, heat and light stability, and cross-application versatility.

Regulatory Information: BHT is permitted in many regions under defined limits, verify local regulations before use.