Synonyms: 6-Methyl-1,3,8-trihydroxyanthraquinone;Frangula emodin;1,3, 8-Trihydroxy-6-methylanthraquinone;6-Methyl-1,3,8-trihydroxy-9,10-anthracenedione;1,3, 8-Trihydroxy-6-methyl-9,10-anthraquinone;9,10-Anthracenedione,1,3,8-trihydroxy-6- methyl-;Anthraquinone, 6-methyl-1,3,8-trihydroxy-;Anthraquinone, 1,3,8-trihydroxy-6-methyl-;Rheum emodin;1,3,8-Trihydroxy-6-methyl-9,10-anthracenedione;9,10-Anthracenedione, 1,3,8-trihydroxy-6-methyl-;C.I. 75440;9,10-Anthracenedione, 1,3,8-trihydroxy-6-methyl- (9CI);1,3,8-Trihydroxy-6-methylanthraquinone;3-Methyl-1,6, 8-trihydroxyanthraquinone;Huperzines A;Polygonum Cuspidatum P.E;Emodine;