2-Anthracenecarboxylic acid, 9,10-dihydro-4,5,7-trihydroxy-9,10-dioxo- (9CI) 3-10-00-04829 (Beilstein Handbook Reference) 478-45-5 9,10-Dihydro-4,5,7-trihydroxy-9,10-dioxoanthroic acid ANTHROIC ACID, 9,10-DIHYDRO-4,5,7-TRIHYDROXY-9,10-DIOXO- BRN 2668609 CCRIS 5311 Emodic acid