Some novel uracil derived azo compounds were synthesized by diazotization of substituted aromatic amines, amidine-and guanidine-like amines such as 2-aminopyridine and 2- aminopyrimidine, ortho-hydroxy aniline and ortho-hydroxy naphthyl amines and coupling reaction with 6-amino-1, 3-dimethyluracil. Structures of the dyes were fully characterized by spectroscopic techniques (UV, 1H NMR, 13C NMR, CHN and IR). The dyes were applied ...