Definition: Compounds based on ANTHRACENES which contains two KETONES in any position. Substitutions can be in any position except on the ketone groups.
chrysophanic acid [ 2-methyl-4,5-dihydroxyanthraquinone,3-methyl-1,8-dihydroxyanthraquinone,chrysophanic acid, ion (1-),chrysophanol ] RN given refers to parent cpd; structure in Merck, 9th ed, #2260