Review in Azo Compounds and its Biological Activity

Abstract

In this review paper, we talk about Dyes are used to give colors to substances, especially fabrics. Chromophores, functionalgroups that absorb light, give color to these dyes. The most common chromophores areazo, nitro, and carbonyl groups. Auxochromes, functional groups that increase theintensity of the color, are also important parts of dyes. The most common chromophoresare hydroxyl, amino, sulfonate, and carboxylate groups.Azo dyes have a nitrogen to nitrogen double bond as their chromophore. These dyes arecreated by taking a diazonium salt and adding it to a strongly activated aromatic system.