For laboratory use; for biochemical research; Potassium Bromate is used in the catalytic and non-catalytic roles of DNA polymerase K in protection of human precursor leukemia cells against genotoxic stresses. Also used in the study of related molecular mechanism of carcinogen participating in tumor metastasis. In USA, Japan and some other countries, Potassium bromate is strictly supervised as flour additives; In China, it is not allowed to be added into flour and any food.