Keywords: Quinizarin-3D-balls.png Ball-and-stick model of the quinizarin molecule an intermediate for the synthesis of indanthrene and alizarin-based dyes Derived from File Anthraquinone-3D-balls png and File Hydroquinone-3D-balls png 2010-07-01 Jynto and Ben Mills Anthraquinone dyes Intermediates Hydroxyanthraquinones Images by Jynto |