2,8-Dihydroxy-1-methoxy-3-methyl-9,10-anthracenedione 477-85-0 9,10-Anthracenedione, 2,8-dihydroxy-1-methoxy-3-methyl- Anthraquinone, 2,8-dihydroxy-1-methoxy-3-methyl- Obtusifolin Obtusifolin (anthraquinone)