benzanthrin B

6,8-Dihydroxy-3-methyl-2-[2,3,6-trideoxy-3-(dimethylamino)-β-D-arabino-hexopyranosyl]-1-[[2,3,6-trideoxy-3-(dimethylamino)-β-D-arabino-hexopyranosyl]oxy]benz[a]anthracene-7,12-dione