Synthesis of diazoic dyes containing triazole

Three diazoic dyes were synthesized by the reaction of 5-amino-1H-1,2,4-triazole-3-carboxylic acid with 1-amino-8-naphthol-3,6-disulfonic acid and aniline. Their properties were especially discussed and their structures were confirmed by elemental analysis, IR,UV, and 1 HNMR.