Azo Dye -

Azo dyes are a dominant class of synthetic organic colorants, characterized by the presence of one or more (

The defining feature of an azo dye is the azo linkage connecting two aromatic fragments, typically aryl groups. This arrangement creates an extensive , which allows the molecule to absorb energy in the visible light spectrum (400–800 nm), resulting in intense, stable colors. azo dye

: An aromatic amine reacts with nitrous acid at low temperatures to form a diazonium salt . Azo dyes are a dominant class of synthetic

Because they are highly versatile, azo dyes are used across a vast range of commercial sectors: Azo Dyes - an overview | ScienceDirect Topics resulting in intense

The synthesis of these dyes usually involves a two-step process: