Fumaric Acid Food Grade 99.5% Fumaric Acid Industrial Grade 99% Food Grade Fumaric Acid is produced by the oxidation of benzene,the color can ... reach to 15,content is 99.5%,and it ... ,organic synthesis,pharmaceutical,oil,preservatives industry.Feed Grade Fumaric Acid,content of 99.5%,mainly for the production of feed acidifier,and ...