Anthraquinone dyes

Anthraquinone dyes account for about 15% of colorants and have structures based on quinones.  The simplest quinone is benzoquinone, which has two isomers:

Anthraquinone, the simplest of the anthraquinones, is based on anthracene:

Two well known examples of anthraquinones which are used as dyes are C.I. Disperse Red 60 and C.I. Disperse Blue 60: