1-amino-5-hydroxy-4-[(1-methylpropyl)amino]-8-nitroanthraquinone

1-amino-5-hydroxy-4-[(1-methylpropyl)amino]-8-nitro-10-anthracenedione

1-Amino-5-hydroxy-4-[(1-methylpropyl) amino]-8-nitro-9,10-anthracenedione