Tert-Butylhydroquinone, commonly abbreviated as TBHQ, is a synthetic phenolic antioxidant. It appears as white to light tan crystalline powder with a faint characteristic odor. The product features excellent thermal stability, outstanding antioxidative capacity for oils and fats, and good bacteriostatic properties. It is slightly soluble in water while freely soluble in common organic solvents and vegetable oils. As a high-efficiency food-grade antioxidant, it is widely used in edible oils, fried foods, baked goods, cosmetics, feed and industrial raw materials to retard oxidation, prevent rancidity and extend shelf life.