Organic chemicals where aryl or alkyl groups are joined by two nitrogen atoms through a double bond (R-N=N-R'; R and R' may be either aryl or alkyl). They may be used as DYES.

Synonyms: 0, Dye, Azo, Dyes, Azo, Azo Dye, Azo Compounds, Compounds, Azo, Azo Dyes