Azo dyes
Azo dyes are a group of synthetic dyes characterized by one or more azo bonds in their molecular structure, which link aromatic compounds. These dyes are widely used in various industries, including textiles, food, cosmetics, and pharmaceuticals, due to their vibrant and diverse range of colors, stability, and cost-effectiveness.
Concerns?
Some azo dyes are approved for use in food products (e.g., tartrazine for yellow coloring), though their safety is regulated due to potential health concerns.
Additional information?
Some azo dyes have raised health and environmental concerns, particularly those that can break down into aromatic amines under certain conditions. Certain aromatic amines are carcinogenic, leading to restrictions or bans on specific azo dyes in many countries.