4,8-Diamino-1,5-dihydroxy-2-(4-pentyloxy-phenyl)-anthraquinone
4,8-Diamino-1,5-dihydroxy-2-(4-propoxy-phenyl)-anthraquinone
4,8-Diamino-2-(4-butoxy-phenyl)-1,5-dihydroxy-anthraquinone
4,8-Diamino-2-(4-hexyloxy-phenyl)-1,5-dihydroxy-anthraquinone
4,8-Diamino-2-(4-heptyloxy-phenyl)-1,5-dihydroxy-anthraquinone