Investigation on interaction of azo dyes with bovine serum albumin as carrier protein will be important in the field of toxicology because of distribution and transportation of dyes in blood. In this regard, the interaction between the azo dye, trisodium (4E)-3-oxo-4-[(4- sulfonato-1- naphthyl) hydrazono] naphthalene-2,7-disulfonate (C20H11N2Na3O10S3), known as Amaranth and bovine serum albumin...