Azo dyes are a class of synthetic dyes characterized by the presence of one or more azo groups (–N=N–) in their chemical structure. They are widely used in various industries, including textiles, food, and cosmetics, due to their vibrant colors and ability to bond well with different materials. Azo dyes can produce a wide range of colors, making them popular for coloring fabrics and other products. Despite their popularity, some azo dyes can release harmful aromatic amines when they break down, which raises health and environmental concerns. Regulations in many countries restrict the use of certain azo dyes, particularly in consumer products like clothing and toys, to ensure safety for consumers and the environment.