Abstract

Azo compounds are water-soluble compounds possessing the characteristic NN (azo) bond. The azo compounds have vivid colors, especially reds, oranges, and yellows. Azo dyes are the most important group of synthetic colorants and represent the largest class of dyes in use today. Many kinds of azo dyes are known, and several classification systems exist. Some classes include disperse dyes, an example of which is Disperse Orange. In another classification, azo dyes can be classified according to the number of azo groups. Most azo dyes contain only one azo group (monoazo), but some contain two (diazo), four (tetrakisazo), or more.

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