Synonyms: laccaic acid D;3,6,8-Trihydroxy-1-methyl-9,10-dioxo-9,10-dihydro-2-anthracenecarboxylic acid;9,10-Dihydro-3,6,8-trihydroxy-1-methyl-9,10-dioxo-2-anthracenecarboxylic acid;9,10-Dihydro-9,10-dioxo-1-methyl-3,6,8-trihydroxyanthracene-2-carboxylic acid;Flavokermesic acid