sodium 2-(4-(benzyloxy)phenyl)hydrazine-1-sulfonate

1,4,5,8-tetramethoxy-2-methyl-anthraquinone

5,8-Dihydroxy-6-methyl-1,4:9,10-anthradichinon

1,4,5,8-Tetramethoxy-2-methyl-9-hydroxyanthracen

3,6-dimethoxy-4-methylphthalic anhydride