... drum. Brief Introduction:Sorbic acid, or 2,4-hexadienoic acid, is a natural organic compound used as a food preservative. It has ... % purity , White or white crystal powder . Have Pharmaceutical grade, food grade and feed grade. The main function of it as ... anticorrosive reagent. Widely used in the food, beverage, tobacco, pesticides and cosmetic industries, as unsaturated acid, can also be used for ...