Review on Azo-Compounds and Their Applications

Abstract

Azo-colored compounds that form the basic structure of many synthesized compounds in many fields
of chemistry, especially coordination chemistry, as they contain a group (-N=N-). These dyes are
widely used as colorants, as they contribute to nearly 50% of artificial colors. Also in many
applications such as ink-jet printing, optical imaging, and biomedical diagnostics , azo dye contains
one or more D-π-A systems that can produce various colors by changing the electron donation (D) or
drawing Electrons (A) are in functional groups , and azo dyes have many advantages including ease
of preparation, intense color and desirable stability. Azo compounds are important compounds for
many researchers. Also, many antibiotics are associated with azo groups that contain heterogeneous
ring systems, and many heterocyclic compounds can be obtained in the laboratory, which are
characterized by their biological activity, dyes, insecticides and polymers. The use of these
compounds is of great importance in many colored materials for textiles, cotton and various types of
fields, even in the field of preparing organic and analytical reagents for the determination of ions in
wastewater, water and environmental models contaminated with heavy water. Where these
compounds have given a large space in industrial chemistry through the production of many dyes,
polymers, and types of plasticized plastics, in addition to their entry in the installation of many
compounds that have proven their worth as anti-tumor compounds and agricultural pesticides.