Furmaric acid has bacteriostatic and antiseptic function. It can be used as acidulant, acidity regulator, acidifier. White odorless powder or, with speical sourness that is as strong as 1.5 times of citric acid. It is soluble in ethanol (5.76g/100g,30°c), slightly soluble in water (0.63g/100ml,25°c) and in ether, and very slightly soluble in chloroform. It has no hygroscopicity, and will sublime at 200°c. Boiling point: 290°c (decompose). It will turn to maleic anhydride at 230°c, and will generate DL-malic acid if boiled with water. Fumaric acid is an important organic chemical raw material. It is also an intermediate of fine chemical products. It is also an important derivative of maleic anhydride. It is widely used in the fields of food, coating, resin and plasticizer. Fumaric acid is used as an acidifying agent in the food industry. It can be used in cool drinks, western style wine, cold drinks, concentrated fruit juice, canned fruits, pickles and ice cream. As an acidic material for solid beverage, it has good durability and fine tissue.