SEARCH Articles Figures Tables 1.4- Dihydroxy-9,10-anthraquinone-2-sulfonic 1.8- Dihydroxy-6-methoxy-3- anthraquinone 9,10-Anthraquinone, 1,4-dihydroxy-5-methoxyFriedel-Crafts reaction Anthraquinone Anthraquinones Dihydroxy anthraquinones Dihydroxy anthraquinones Dihydroxy methyl anthraquinone